1 · Web viewAdd onto after the word “Clause 45” in the last sentence : . . . . . . . , unless...

TENDER No ……..

DUE AT …………. ON

……………………….

COMMUNITY RURAL WATER SUPPLY PROGRAMMEEQUIPPING OF BOREHOLES

[DISTRICT MUNICIPALITY NAME]SUBMIT TENDER DOCUMENTS

TO

COMPILED BY:

Generic Documentation prepared by DIRECTORATE: PROJECT DEVELOPMENT SUPPORTDEPARTMENT OF WATER AFFAIRS AND FORESTRY

PRIVATE BAG X313, PRETORIA, 0001, REPUBLIC OF SOUTH AFRICA

District Municipality Document prepared by

Documentation Prepared for

document.doc/dt/ 29/06/2001

REPUBLIC OF SOUTH AFRICA[DISTRICT MUNICIPALITY NAME]

TENDERER:

District Municipality Logo

DISTRICT MUNICIPALITY(S) DETAILS

Page (i)

COMMUNITY RURAL WATER SUPPLY PROGRAMMECONTRACT

FOREQUIPPING OF BOREHOLES

CONTENTS LISTPAGE NO

CONTRACT DOCUMENT

PART 1 SCHEDULE OF DOCUMENTS.................................................................................1

PART 2 NOTICE OF TENDER..............................................................................................1

PART 3 SPECIAL CONDITIONS OF CONTRACT.................................................................1

PART 4 STANDARD SPECIFICATIONS...............................................................................1

PART 5 PROJECT SPECIFICATIONS..................................................................................1

PART 6 ANNEXURES TO THE SPECIFICATIONS...............................................................1

PART 7 SCHEDULES...........................................................................................................1

PART 8 CONTRACT GUARANTEE AND AGREEMENT PRO-FORMAS...............................1

PART 9 TENDER FORMS.....................................................................................................1

PART 10 TENDER ADMINISTRATION...................................................................................1


Page (ii)

PREAMBLE

This document has been prepared as part of a set of generic documents for use in community water schemes in South Africa. DWAF and BIGEN used the original documents with success in the development of groundwater resources in North West Province. They were subsequently re-formatted with minor adjustments by the VKE/SF Joint Venture, to form part of the "Toolbox" of documents to be utilized by local government authorities and their consultants and advisors to develop their water services.

This document is intended to be used to equip boreholes and supply and install the reticulation system and reservoirs required to provide communities with water services. The documents need to be adapted for specific projects and the following should be noted:

Notes:

1. Documents in Part 6 should only be completed after the award of a tender for the Works.

2. Pages should only be initialled by the Contractor and witnessed after the award of a tender for the Works.

3. Documents in Part 8 will be bound in when concluding the Contract Agreement.


Equipping of Boreholes Page (1)Part 1 2 3 4 5 6 7 8 9 Schedule of Documents



PART 1 SCHEDULE OF DOCUMENTS


Equipping of Boreholes Page (2)Part 1 2 3 4 5 6 7 8 9 Schedule of Documents

SCHEDULE OF DOCUMENTS

The following documents form part of the Tender/Contract documents:

(i) The general conditions governing this contract are:

SAICE General Conditions of Contract for Works of Civil Engineering Construction, Sixth Edition (1990)

(ii) Additional documents forming part of the Contract in terms of Clause 1(1)(e) of the General Conditions of Contract are:

1. This document - See Contents list.

2. Standard Specifications not bound into this document - See Part 4.of this document.

3. Drawings - As listed in Part 6.

4. The Contract Guarantee and Agreement - To be bound into Part 8 of this document once concluded.

5. Tender Administration Documentation - To be bound into Part 10 of this document.

Note : The General Conditions of Contract (GCC 90) are not bound into this document, but are available at the Contractor's expense from the Secretary of the South African Institution of Civil Engineers, P O Box 61019, MARSHALLTOWN, 2107.


Equipping of Boreholes Page (3)Part 1 2 3 4 5 6 7 8 9 Notice of Tender



PART 2 NOTICE OF TENDER



TABLE OF CONTENTSPAGE NO

1 FORM OF CONTRACT AND SUBCONTRACT....................................................................1

2 ISSUING OF DOCUMENTS.................................................................................................1

3 SITE INSPECTION / BRIEFING MEETING..........................................................................1

4 INFORMATION TO BE ENTERED.......................................................................................1

4.1 Part 7: Schedule of Rates........................................................................................1

4.2 Part 9: Tender Forms................................................................................................1

5 SUBMISSION OF TENDER..................................................................................................1

6 AUTHORITY OF SIGNATORY.............................................................................................1

7 _______________________ MUNICIPALITY TENDER CONDITIONS AND PROCEDURES1

8 ALTERNATIVES.................................................................................................................. 1

9 VALIDITY............................................................................................................................. 1

10 FORM ST8........................................................................................................................... 1

11 PREFERENCE FOR PRODUCTS MANUFACTURED OR ASSEMBLED LOCALLY.............1

12 TENDERERS TO COMPLY WITH DOCUMENTS................................................................1

13 SUBCONTRACTORS...........................................................................................................1

14 ACCEPTANCE OR REJECTION..........................................................................................1

15 TELEGRAPHIC TENDERS...................................................................................................1

16 REFUND OF DEPOSITS......................................................................................................1

17 CHEQUES........................................................................................................................... 1

18 DETAILS OF DOCUMENTS TO BE KEPT CONFIDENTIAL.................................................1

19 EMPLOYMENT OF LOCAL LABOUR...................................................................................1

20 FINANCIAL STANDING.......................................................................................................1

21 ABILITY TO PERFORM.......................................................................................................1

22 VALUE ADDED TAX............................................................................................................1

23 RESULTS OF TENDERS.....................................................................................................1

24 QUERIES WITH RESPECT TO THIS...................................................................................1

25 TENDER ADVERTISEMENT................................................................................................1

26 IMPORTANT CONDITIONS : MISCELLANEOUS REQUIREMENTS....................................1

27 BASIS OF TENDER ADJUDICATION...................................................................................1



1 FORM OF CONTRACT AND SUBCONTRACTThe successful tenderer will be the Principal Contractor for Contract No. _____________________. Should the Project Specifications and the Schedule of Quantities provide for certain portions of the Works to be undertaken by specialists nominated by the Employer, or by the Engineer acting as agent of the Employer, then the Principal Contractor will be responsible for employing such subcontractors as are nominated by the Employer (or by the Engineer as its agent) for the respective portions of the Works that are described in the Project Specifications and in the Schedule of Rates. The Employer will call separately for tenders for the nominated subcontract works, either before or during the duration of the Contract in accordance with the approved construction programme of the Principal Contractor. The successful tenderers under these separate enquiries will be nominated as subcontractors to the Principal Contractor for the respective portions of the Works involved. Subsequent to nomination, each specific nominated subcontractor will be required to enter into a subcontract agreement with the Principal Contractor in terms of Clause 9(1) of the General Conditions of Contract. The nominated subcontractor will be bound, mutatis mutandis, by the same general and special conditions of contract as the Principal Contractor will be under this Contract, except as may be specifically indicated otherwise in this document. Tenderers for the Principal Contract should carefully examine the General Conditions of Contract, as well as the Special Conditions of Contract that are included in Part 3 of this document, in order to establish the contractual arrangements that will govern nominated subcontracts to the Principal Contract.

Tenderers are to take note of the fact that the bulk of the equipping and reticulation work is to be executed via “labour intensive construction” (LIC) methods. The execution of the work will be done on one of the following methods or as a combination of the methods :

(i) Established contractor to employ people from the village(s) where the work is to be done.

(ii) Nominated emerging sub-contractors who are to be employed and trained by the established contractor.

(iii) Established and emerging contractor who have entered into a joint venture agreement with one another.

The proportionate distribution of work between the above methods will be discussed in detail at the tender briefing meeting. The tenderers must take note of the fact that it will be expected of the successful tenderer to enter into a formal agreement with the Nominated Emerging Contractor (NEC) and/or the “normal” Emerging Contractor (EC). The established/main contractor (MC) will be responsible for the quality of work of the NEC and/or the EC. Provision has been made in Schedule 1 of the Schedule of Rates for a % mark-up on the amount payable to the NEC by the MC.

Although not foreseen at this stage, it may happen that it will be expected of the contractor to execute some work outside the existing borders of the _______________ Municipality’s Area of Jurisdiction. If the tenderers have any objection to this possibility, it must be clearly indicated in Part 9, i.e. Alterations by Tenderer in this document.

The contract will consist of three main types of activities, namely Mechanical/Electrical Equipping and Installation, Civil Engineering Construction and Operation and Maintenance of the Works. The work to be carried out during the currency of the contract may be ordered as separate tasks. Each task to be undertaken will be issued as a written instruction by the Engineer and will consist of a detailed scope of work and relevant drawings for each particular task.

The value of work to be carried out as stipulated in the order will include ten percent to be used as contingencies in accordance with the general conditions of contract.

The estimated value of total work to be done in this region is R__________. No guarantee can however be given regarding the expenditure of this amount. The actual expenditure for the financial year may exceed or may be less than the estimated amount.



2 ISSUING OF DOCUMENTS(a) One complete set of tender documents (Volume 1), one set of drawings (Volume 2), and

one copy of the Schedule of Rates will be issued to each prospective Tenderer. These documents are obtainable upon receipt of the deposit, from the office(s) as detailed in the Invitation to Tender, a copy of which has been bound into Part 2 of this document.

(b) This tender document contain pages numbered consecutively. Tenderers must satisfy themselves that the documents are complete. Should any figures or writing be indistinct, or should any pages be missing from this document, or should this document or the drawing(s) contain any obvious errors, the Tenderer must immediately notify the Engineer in order to have any discrepancy rectified, as no claim whatsoever will be entertained for faults in the tender price resulting from the abovementioned discrepancies.

(c) This document is to be left intact in its original format and no pages are to be removed or re-arranged. Should there be inadequate or no space for the Tenderer to enter a particular item, then such information shall be submitted in a covering letter and shall be referred to in the schedule in Part 9 entitled "Alterations by Tenderer".

(d) All Tenderers shall be deemed to have waived, renounced and abandoned any conditions which are in conflict with the conditions that are laid down in this document, which are printed or written upon any stationery used by them for the purpose of or in connection with the submission of tenders for this Contract.

3 SITE INSPECTION / BRIEFING MEETINGA compulsory official tender briefing meeting will be held. Particulars regarding the briefing meeting appear in the Invitation to Tender, a copy of which has been bound into Part 2. The briefing meeting will be attended entirely at the Tenderers own risk and expense insofar as transport and accommodation are concerned. Tenderers shall make their own arrangements in this regard. The Briefing Meeting Certificate that is included in Part 9 of this document must be completed in respect of every tender submitted.

4 INFORMATION TO BE ENTEREDThe Tenderer is required to enter information on the following pages of this contract document:

4.1 Part 7: Schedule of Rates7.1 Schedule of Rates

4.2 Part 9: Tender Forms9.1 Alterations by Tenderer

9.2 List of Works Previously Executed

9.3 Present Commitments

9.4 List of Supervisory Personnel

9.5 Local Labour Content

9.6 Labour Utilisation

9.7 Compliance with OHSA (Act 85 of 1993)

9.8 List of Available Plant and Equipment

9.9 Sub-Contractors

9.10 Equipment Questionnaire (ST 10)

9.11 Preference Certificate (ST 11)

9.12 Briefing Meeting Certificate

9.13 Authority of Signatory

9.14 Appendix to Tender



9.15 Declaration of Interest (ST 12)

9.16 Declaration of Good Standing regarding Tax (ST 5)

9.17 Tender (ST 8)

9.18 Form of Tender

Notes

(i) All prices quoted shall be in South African currency and shall exclude Value Added Tax.

(ii) The tender must be signed and witnessed on the Form of Tender annexed hereto, with all blanks in the Tender, Appendix and other forms filled in.

(iii) Individual pages should only be initialled by the Contractor and by the witnesses after the award of a tender for the Works.

(iv) All spaces in the State Tender Board forms and other annexures shall be completed in full.

(v) The Schedule of Rates must be fully priced. Tenderers must tender for all options included in the tender.

(vi) The pro-forma Contract Agreement and Guarantee bound into Part 8 of this volume are not to be completed at the time of tendering.

(vii) The tender documents shall not be separated in any way nor must any pages be detached from the original documents.

5 SUBMISSION OF TENDERThe tender document shall be duly completed and signed and shall be submitted as follows:

(a) The tender, together with the covering letter and supporting documents, shall be sealed in an envelope endorsed:

"ORIGINAL TENDER FOR CONTRACT No. _______________, ____________________________ MUNICIPALITY COMMUNITY RURAL WATER SUPPLY PROGRAMME - EQUIPPING OF BOREHOLES"

(b) Tenders sealed and endorsed, will be received by:

The (Acting) Municipal Manager, ______________ Municipality, P O Box _______, _____________ or may be deposited in the tender box in the foyer of __________________ Municipality at _____________________ Street, ________________ up to 12:00 on the date shown below.

Tenders must be received in the tender box at the address listed above not later than 12:00 on __________, ___________________ 200__.

(c) The extra copy of the Schedule of Rates may be retained by the Tenderer for his records, but the set of drawings must be returned to the consultants at the address listed above. Tenders must be received in the tender box at the address listed above not later than 12:00 on _______________, _____________________ 2001.

6 AUTHORITY OF SIGNATORY If the Tenderer is a company, a certified copy of the resolution of the Board of Directors of the company (personally signed by the Chairman of the Board), authorising the person who signs this Tender to do so, as well as to sign any contract resulting from this Tender and any other documents and correspondence in connection with this Tender and/or Contract on behalf of the company, must be submitted with the Tender.

If the Tenderer is a close corporation, a certified copy of a resolution of the Board of Officials (personally signed by the Chairman of the Board), authorising the person who signs this Tender as well as any contract resulting from this Tender and any other documents and correspondence



in connection with this Tender and/or Contract requiring such signature, to do so on behalf of the close corporation, must be submitted with the Tender.

If the tenderer is a partnership, a certified copy of the resolution of the partners (personally signed by all the partners), authorising the person who signs this Tender, as well as any contract resulting from this Tender and any other documents and correspondence in connection with this Tender and/or Contract on behalf of the partnership, must be submitted with the Tender.

Where the Tenderer constitutes a one-man business, certified proof must be submitted that the person signing this Tender as well as any contract resulting from this Tender and any other documents and correspondence in connection with this Tender and/or Contract, is the sole owner of the one-man business.

If the Tender is submitted by a joint venture of more than one person(s) and/or companies and/or firms, it shall be accompanied by the following:

(a) A draft document under which such joint venture will be constituted. Such document must inter alia define precisely the conditions under which the joint venture will function, its period of duration and the participation of the several constituent persons and/or companies and/or firms;

(b) A certificate signed by or on behalf of each participating person and/or company and/or firm authorising the person(s) who signed the tender to do so.

The form provided for this purpose in Part 9 shall be completed in order to indicate the nature of the legal person or body that is submitting the tender.

7 _______________________ MUNICIPALITY TENDER CONDITIONS AND PROCEDURES

The Contract shall governed by the “General Conditions of Contract for Works of Civil Engineering Construction, Sixth Edition (1990)”. The only variations from these General Conditions of Contract shall be as given in the Special Conditions of Contract as contained in Part 3 of this document.

The pro-forma Appendix contained in the General Conditions of Contract is replaced by Appendix contained in Part 9 to this document.

The General Conditions and Procedures of _____________________ Municipality as approved by the Department of Water Affairs and Forestry shall apply. Such conditions can be obtained from _____________________ Municipality.

8 ALTERNATIVES Alternative tender offers will be considered by the Employer, and may be submitted at any time prior to the closing of Tenders. Any deviation from the Specifications, Conditions of Tender or Conditions of Contract must be clearly stated, and all savings or additional expenditures or time implications that will be brought about by each such deviation or alternative proposal must be fully and clearly quantified in the tender documents.

Should the Tenderer wish to offer alternative designs and/or construction materials or any other alternative, he shall include with his Tender full details thereof, including a complete schedule of rates, formal design calculations, and full details of all alternative components proposed to be included in the works. Refer also to Clause 6(2) of the Special Conditions of Contract in this regard.

Failure to properly comply with this clause, thereby not enabling the Employer and/or the Engineer to properly assess the full implications of the alternative tender, is likely to disqualify the alternative offered from further consideration.

No submission by the Contractor after award for additional payment or time for completion of the Works relating to the alternative offer will be considered, the tendered rates submitted being considered to reflect the full and final cost implications of the alternative offer.



9 VALIDITY This Tender shall remain valid for the number of calendar days that is indicated in the Appendix to Tender (Part 9), calculated from the date and time of tender closure indicated on the cover page of this volume. Should the tender validity expire on a Saturday, Sunday or public holiday, the tender shall remain valid and open for acceptance until the closure of business on the following working day.

In submitting a tender, the Tenderer expressly agrees that he shall be committed to these tender conditions, and to his offer to execute the Works at his tender price as may be adjusted in terms of the Preamble and the Form of Tender, for the period of validity as calculated above.

Should the Tenderer unilaterally withdraw his tender during this period, the Employer shall, without prejudice to any other rights he may have, be entitled to accept any less favourable tender for the Works from those received, or to call for fresh tenders, or to otherwise arrange for execution of the Works, and the Tenderer shall pay on demand any additional expense incurred by the Employer on account of the adoption of the said courses, as well as either the difference in cost between the tender withdrawn (as corrected in terms of the Preamble and Form of Tender) and any less favourable tender accepted by the Employer, or the difference between the tender withdrawn (as corrected) and the cost of execution of the Works by the Employer as well as any other amounts the Employer may have to pay to have the Works completed.

10 FORM ST8The copy of Form ST8, annexed to these documents (as Annexure 9.17), must be completed and signed by the Tenderers. In the event of a conflict between the terms and conditions of Form ST8 and the terms and conditions of the rest of the bound document, the terms and conditions of the rest of the bound document will take precedence over the said Form ST8.

11 PREFERENCE FOR PRODUCTS MANUFACTURED OR ASSEMBLED LOCALLYTenderers desirous of claiming preference for products manufactured or assembled in the RSA and/or territory granted independence by or under any Act of Parliament of the RSA must complete and sign the Preference Certificate, Form ST11 (as Annexure 9.11) or no preference will be allowed.

12 TENDERERS TO COMPLY WITH DOCUMENTSTenderers must allow in their Tenders for all labour, materials, machinery and everything necessary for the execution and completion of the Contract in accordance with the tender documents. No alternations may be made in the Form of Tender, Schedule of Rates or other documents and the tender will be deemed to comply entirely with the terms of the documents.

13 SUBCONTRACTORS Tenderers must submit with their Tenders (Part 9) the names and addresses of any subcontractors they propose to appoint, as well as the section of the Works on which each such subcontractor will be employed. The above-mentioned subcontractors are not to be confused with the Emerging Contractors as mentioned previously in the document.

14 ACCEPTANCE OR REJECTION Tenders may be rejected if they show unacceptable departure from the conditions or specifications contained in the tender documents, or if they are incomplete in any way. The Employer does not bind itself to accept the lowest or any tender, and reserves the right to accept any tender it may deem expedient, nor will it assign any reason for the acceptance or rejection of any tender.

15 TELEGRAPHIC TENDERSTelegraphic, telexed, telefaxed or e-mailed tenders will not be considered.



16 REFUND OF DEPOSITSThe tender deposit is non-refundable.

17 CHEQUESAll payments and deposits are to be made in the currency of the Republic of South Africa and cheques are to be made payable to the ___________________, _________________________ Municipality.

18 DETAILS OF DOCUMENTS TO BE KEPT CONFIDENTIAL All recipients of the tender documents, whether they submit a tender or not, must treat the details of the document as private and confidential.

19 EMPLOYMENT OF LOCAL LABOURThe Government has indicated a desire to stimulate the local economic activities in the area and for this reason a high rate of local labour will be a pre-requisite for the activities which are to be executed by means of LIC-methods.

20 FINANCIAL STANDING Should he be so requested, the Tenderer shall within 7 days of the date upon which he is requested to do so, submit a full report from his banker as to his financial standing. The Employer may, in its discretion, and subject to the provisions of Section 4(1)(d) of the State Tender Board Act 86 of 1968, condone any failure to comply with the foregoing condition.

The Employer, and/or the Engineer as his agent, also reserves the right to approach the Tenderer's banker or guarantor(s) as indicated in the tender document, or the bankers of each of the individual members of any joint venture that is constituted for purposes of this Contract, with a view to ascertaining whether the required guarantee will be furnished, and for purposes of ascertaining the financial strength of the Tenderer or of the individual members of such joint venture. Tenderers shall indicate relevant details of their bankers in Part 9, Appendix to Tender.

21 ABILITY TO PERFORM In the adjudication of tenders due account will be taken of the Tenderer's past performance in the execution of similar engineering works of comparable magnitude, and the degree to which he possesses the necessary technical, financial and other resources to enable him to complete the Works successfully within the contract period.

Tenderers are required to satisfy the Employer and the Engineer as to their ability to perform and complete the Works timeously and with satisfactory quality, and shall furnish details in Part 9 - Works Previously Executed, of contracts of a similar nature and magnitude which they have successfully executed in the past.

22 VALUE ADDED TAXThe tenderers are to note that the tendered rates are to exclude VAT. ______________________ Municipality has the right to reject any tender if Form ST5, Declaration of Good Standing regarding Tax (Part 9) has not been completed or the tenderer has no VAT registration number.

23 RESULTS OF TENDERSNotice of non-acceptance of tenders will not be sent to individual unsuccessful tenderers, but particulars of accepted tenders will be made available upon written request by bona fide tenderers.



24 QUERIES WITH RESPECT TO THIS Queries of a contractual nature should be addressed to Mr _________________ of ___________________ Municipality, Tel (___)-(_____________), Fax (___)-(_____________).

25 TENDER ADVERTISEMENT A copy of the official tender advertisement is bound into this document directly after the Contents List.

26 IMPORTANT CONDITIONS : MISCELLANEOUS REQUIREMENTS (i) The tender forms are drawn up so that certain essential information is to be furnished in

a specific manner. Any additional particulars shall be furnished in the enclosed questionnaire or in a separate annexure.

(ii) Should tender forms not be filled in by means of mechanical devices, for example typewriters, ink, preferably black, must be used to fill in tenders.

(iii) Tenderers shall check the numbers of the pages and satisfy themselves that none are missing or duplicated. No liability shall be accepted in regard to claims arising from the fact that pages are missing or duplicated.

(iv) The forms ST 10 and ST 11, if attached, shall be completed and submitted with the tender.

(v) In terms of paragraph 17 of the General Conditions and Procedures (ST 36) firm tender prices and delivery periods are preferred. Consequently tenderers shall clearly state whether prices and delivery periods will remain firm for the duration of the contract or not.

(vi) If non-firm prices are tendered, paragraphs 52.1 to 52.4 of the General Conditions and Procedures (ST 36) shall apply.

(vii) Where items are specified in detail, the specifications form an integral part of the tender document and tenderers shall indicate in the space provided whether the items offered are to specification or not.

(viii) In respect of the paragraphs where the items offered are strictly to specification, tenderers shall insert the words "as specified".

(ix) In cases where the items are not to specification, the deviations from the specifications shall be indicated.

(x) The tender prices shall be given in the units shown.

(xi) With the exception of basic prices, where required, all prices shall be quoted in South African currency.

(xii) Delivery basis:

(a) Supplies which are held in stock or are in transit or on order from South African manufacturers at the date of tender, shall be offered on a basis of delivery into consignee's store or on his site within the free delivery area of the tenderer's centre, or carriage paid consignee's station if the goods are required elsewhere.

(b) Notwithstanding the provisions of paragraph 12(a), tender prices for supplies in respect of which installation/erection/assembly is a requirement, shall include ALL costs on a basis of delivered on site as specified.

(xiii) Unless specifically provided for in the tender document, no tenders transmitted by telegram, telex, facsimile or similar apparatus shall be considered.

(xiv) These conditions form part of the tender and failure to comply therewith may invalidate a tender.



(xv) Tenderers are requested to promote local content optimally. In terms of paragraphs 25 to 25.2 of the General Conditions and Procedures (ST 36) tenderers who use locally manufactured components, products, equipment and systems, including electronic components and systems, may claim preferences as set out in the preference certificate, form ST 11. A list of products and names of local manufacturers of such components, products, equipment and systems are available from the Office of the State Tender Board on request.

27 BASIS OF TENDER ADJUDICATIONAs already stated in clause 1, this contract will be executed on a “Bill of Rates” basis and not a “Bill of Quantities”. It is also mentioned in the same clause that no guarantee can be given regarding the expenditure for this contract.

The reason for the possible variation in the expenditure is that at the tender stage a number of unknown factors regarding quantities and materials have to be dealt with, e.g. the major contribution factor to the above is that in the majority of the villages, the water source(s) are not known as yet and have to be finalised during the course of the next few months. The result is that, depending on the location and yield of the source(s) (normally a borehole), the length, diameter and class of the feeder lines as well as earthwork quantities cannot be finalised at the tender stage of the contract. Although the client intends to spend funds in the region as close as possible to the reflected expenditure for this programme for this region, the actual expenditure may exceed or may be less than the estimated amount.

To assist the prospective tenderers in determining their rates to be tendered, a typical village'’ quantities is reflected below :

QUANTITIES FOR A TYPICAL VILLAGENo. ITEM UNIT QUANTITY

1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

11.

12.

13.

14.

15.

16.

17.

Site move

Extra over an (a) for site in excess of 10km

Excavation

Intermediate material

Hard rock material

90mm dia uPVC Class 6



Domestic draw-offs

Pipeline markers

Cattle drinking troughs

10K tank with 9m stand

Lister engine

Positive displacement pumps

50mm dia pump column pipes

Pump houses

Remove existing windmill

No

km

m

m³

m³

m

m

m

No

No

No

No

No

No

m

No

No

1

145

7 850

1425

870

1 880

1750

4 260

26

50

1

4

2

2

130

2

1



Tenderers are to take note that in this region ______________villages will be dealt with during the course of this project. The quantities to be used for adjudication for the tenders to be received will be made available to interested tenderers at the project briefing meeting. These “adjudication quantities” will also be submitted to the client as well as the State Tender Board prior to the date of the project briefing meeting.


Equipping of Boreholes Page (14)Part 1 2 3 4 5 6 7 8 9 Special Conditions of Contract



PART 3 SPECIAL CONDITIONS OF CONTRACT



PART 3 SPECIAL CONDITIONS OF CONTRACTThe following additions to and variations from the General Conditions of Contract (sixth edition-1990) apply to the Contract. Certain pro-formas that are contained in the General Conditions of Contract 1990 are also replaced by the corresponding pro-formas that are bound into this document.

1(1) Definitions1(1)(c) “Commencement Date” means the date of delivery to the Contractor of the Letter of

Acceptance from the Employer or the Engineer:

1(1) (e) Add onto after the word “parties” in the last sentence : “. . . . and shall include any written instruction by the Engineer to the Contractor to execute any specified portion of the works”.

1(1) (g) “Contract Price” means the total estimated value of different portions of the works executed by the contract and approved by the Engineer.

1(1)(k) Due Completion Date

Add onto after the word “Clause 45” in the last sentence : . . . . . . . , unless otherwise specified in written instruction by the Engineer to the contractor to execute any portion of the works. Any written instruction when duly signed by the contractor as having accepted same shall form part of the contract.

1(1)(l) “Employer” means _______________ Municipality.

1(1)(m) “Engineer” means any director, associate or professional engineer appointed generally or specifically by the management of the firm ________________________ to fulfil the functions of the Engineer in terms of the Conditions of Contract.

1(1)(q) “Schedule of Rates” means the document so designated in, and forming part of the written instruction by the Engineer to the contractor to execute the specified portion of the works.

1(1)(w) Tender

Line 1 shall be edited as follows:

Replace the words “to the” between the words “... Contractor’s priced offer” and before the words “Employer for the execution...” with the words “and/or including any alternative offers selected by the”.

1(1)(z) “Works” means the permanent works, or any specified portion thereof together with the temporary works.

1(1)(bb) “Village Employment Committee” (VEC) means the committee formed in a specific village or township to identify and recommend people to be employed for a specific labour based job in the village. The VEC shall consist of members of the villages, the Tribal Authority, the Labour Desk Officer, the ____________________ Municipality, the consultant and the contractor.

1(2) Delivery of Notices Add the following to this sub-clause:

(c) sent by facsimile, electronic mail or any like communication irrespective of it being during office hours or otherwise.

(d) posted to the Contractor's address, and delivered by the postal authorities.

(e) delivered by a courier service, and signed for by the recipient or his representative.

1(4) Governing LawThe law which is to apply to the contract and according to which the contract is to be interpreted shall be the law of the Republic of South Africa.

2(1)(c) Duties and Powers of the EngineerThe Engineer is, in terms of his appointment by the Employer for the design and administration of the Works included in the Contract, required to obtain the specific approval of the Employer for the execution of the following duties:



(i) No extension of time to the contract period may be granted by the Engineer without the written consent of the ________________ Municipality.

(ii) No variation order with a value exceeding either R1 000.00 or 10% of the amount allowed for contingencies in terms of the contract, whichever is less, may be issued by the Engineer without the written consent of the _________________________Municipality.

(iii) The approval of any claim submitted by the Contractor in terms of Clause 51.

3(1) Available DataIn line 1 substitute “The Employer shall” by “The Engineer shall”

3(5) Compulsory Site Inspection/Briefing Meeting Add to Clause 3 of the following sub-clause 3(5) :

“Should the site inspection/briefing meeting be compulsory (as stipulated in the Tender Conditions) the contractor is required to sign the official Briefing Meeting Attendance List on the day of the official briefing meeting and obtain the Engineer’s signature on the Briefing Meeting Certificate, included in Part 7.12 of this document. Failure to comply with the aforementioned conditions shall lead to the disqualification of a tender”.

4(4) Language Add the following additional sub-clause to Clause 4:

(4) The Contract shall be construed to be interpreted in English.

5 Agreement In Clause 5 delete the words “when called upon to do so” and insert the words “within the time stipulated in the Appendix to Form of Tender, as calculated from the date of the Letter of Acceptance”.

6(2) Contractor’s Liability for his own Design ErrorsAdd the following to the end of Clause 6(2):

The successful tenderer will be required to provide the following to the Engineer for retention by the Employer or his assignee in respect of all works designed by the Contractor:

(a) A Certificate of Stability of the Works signed by a registered Professional Engineer confirming that all such works have been designed in accordance with the appropriate codes of practice.

(b) Proof of registration and of adequate and current professional indemnity insurance cover held by the designer(s).

(c) Design calculations should the Engineer request a copy thereof.

(d) Engineering drawings and workshop details (both signed by the relevant professional engineer), in order to allow the Engineer to compare the design with the specified requirements and to record any comments he may have with respect thereto.

(e) “As-Built” drawings in DXF electronic format after completion of the Works.

8 Subcontracting8(1) The Contractor shall not sub-let the whole of the Contract.

8(2) Where it is so required in terms of the Project Specifications, the Contractor shall sub-let portions of the Works to local sub-contractors with a view to maximising labour intensive construction, all in accordance with the various provisions of the Contract; provided always that unless stated to the contrary elsewhere in the Contract, the Contractor shall be entitled to sub-let further portions of the Works, additional to those which he is required to sub-let in terms of this sub-clause.

8(3) Except where otherwise provided in the Contract, the Contractor shall not sub-let any part of the Contract without the prior written consent of the Engineer, which consent shall not be unreasonably withheld.



8(4) The Contractor shall obtain the Engineer's prior written consent in respect of any particular subcontractor to whom he intends sub-letting any portion of the Works and such consent shall not be unreasonably withheld; provided always that any such consent when given, shall not be deemed to constitute any form of approval by the Engineer, of the competence or suitability of any particular subcontractor in respect of whom such consent is given.

8(5) Any consent given by the Engineer in terms of Sub-Clauses 8(3) or 8(4) shall not relieve the Contractor of any liability or obligations under the Contract, and he shall be fully liable for the acts, defaults and neglects of any subcontractor (whether locally contracted or otherwise) as well as for the acts, defaults and neglects such subcontractor’s agents or employees, as fully as if they were the acts, defaults or neglects of the Contractor, his agent or employees.

8(6) The Engineer's consent in respect of any particular subcontractor may be withdrawn at any time should reasonable grounds be given therefore in writing to the Contractor by the Engineer, in which event the Contractor shall forthwith terminate the engagement of that subcontractor on the Works.

8(7) The withdrawal (in terms of Sub-Clause 8(6) above) by the Engineer of his consent in respect of any particular sub-contractor that is engaged in the execution of any portion of the Works, including any portions of the Works which are required in terms of Sub-Clause 8(2) above to be sub-let by the Contractor to local subcontractors, shall not relieve the Contractor of any of his obligations under the Contract, nor of any of his obligations to sub-let the particular portions of the Works concerned.

8(8) Unless otherwise stipulated in the Contract:

(a) the provision of labour, whether locally employed or not; or

(b) the purchase of materials which are in accordance with the Contract; or

(c) the purchase or hire of Constructional Plant;

shall not be regarded as sub-letting, as contemplated in this clause , for which the Contractor is required to obtain the Engineer's consent in terms of Sub-Clauses 8(3) and 8(4).”

10 Suretyship Paragraph 1 line 6 shall be continued after the words “..... the Employer” with the words “This ap-proval or otherwise shall be based upon legal opinion to be provided by the Engineer”.

Delete the word “Surety” from the penultimate line of the last paragraph and substitute “Contractor”.

12(1) Commencement of WorksReplace the words “Commencement Date” in the sentence “……...calculated from the commencement date, excluding from the …….” with the words “ ………. date of receipt by the contractor of a written letter from the client.”

Omit the words “ …….. or by a later date ….” between the words “……”non-working days, …specified in the written notice…..”

14(4) Reinstatement of Survey BeaconsAdd the following additional sub-clause to Clause 14:

Property beacons and trigonometrical survey beacons that are disturbed or destroyed during the course of the contract shall be replaced at the Contractor's cost by a registered land surveyor who shall verify such replacement.

15(2) ProgrammeIn the second line, replace the words “…… letter of acceptance …..” with the words “….written instruction by the Engineer to execute any specified portion of the works…..”

16(12) Scaling from drawings Add the following additional sub-clause to Clause 16:

Only dimensions shown on the drawings may be used for the construction of the Works, and no dimension may be scaled without the written instruction of the Engineer.



16(13) Copyright Add the following additional sub-clause to Clause 16:

The copyright in all documents, drawings and records related in any manner to the Works shall vest in the Employer or the Engineer or both (according to the dictates of the contract that has been entered into by the Engineer and the Employer for the Works), and the Contractor shall not furnish any information in connection with the Works to any person or organisation without the prior approval of the Employer to this effect.

21(1) Facilities for other ContractorsAdd the following to Clause 21(1) :

“The contractor’s attention is drawn to the fact that other services may be executed concurrently by independent contractors and separate contracts.

The other works which will be in progress or come into operation in the areas during the progress or tenancy of this contract are likely to include, but are not limited to the following :

(i) Maintenance services done by Eskom and/or the telecommunication services;

(ii) Activities by the Water Board and/or __________________ Municipality regarding existing water infrastructure;

(iii) Drilling and test pumping of boreholes by teams of other contractors on an emergency basis;

(iv) Testing of boreholes in all regions, districts and villages.

The contractor shall ensure that neither his operations nor his employees shall interfere with or hinder the operations of the employer or of other contractors and he shall indemnify the employer against all claims arising through default of this requirement.

The contractor shall hand over portions of the site of works (whether completed or not), or completed portions of works to these contractors when required by the employer. The contractor shall cause no interference with or delays in the execution of these contracts.

No discount or commission for the contractor is allowed on these contracts and it will be assumed that he has fully allowed in the contract price for the presence of these contractors on site. any services rendered or assistance given by the contractor to these contractor save as are contained in the Project Specifications, shall be for their account only since the employer shall in no way be responsible to the contractor for any payments in this respect.

The contractor shall protect all existing services and all work being carried out and structures being erected on the site by other contractors. Any damage caused to these services or structures or any other obstructions or hindrance cause to other contractors by the contractor and claims arising therefrom will be the sole responsibility of the contractor.

Any repair work, improvement or removal and replacement of unsatisfactory work shall be carried out at the contractor’s expense to the entire satisfaction of the Engineer.

The same obligations shall be imposed on the employer and on other contractors in respect of the works being executed under this contract.

23(1) Engagement of Employees Add the following paragraphs to Clause 23(1) :

The Contractor shall use local sub-contractors and labour and labour intensive construction methods to the maximum extent compatible with good workmanship. The Contractor will be required to comply with the requirements of Portion 1 of the Project Specifications in this regard.

The Contractor shall indicate in his tender the extent of local employment that he expects to effect during the duration of the Contract. The sub-contract and employment data that is indicated by the Contractor in his tender will be taken into consideration during the evaluation of tenders for construction of the Works.

The Contractor will be expected to generally achieve the levels of local employment that are indicated in the Project Specifications and in his tender for the Works, failing which the Engineer



shall have the right to suspend the progress of the Works or of any part thereof until the situation has been remedied and the Contractor shall not be entitled to make any claim in accordance with clause 51 in this regard. In addition the penalties referred to in Sub-Clause 46(2) shall become applicable.



23(3) Information in Respect of EmployeesDelete the contents of sub-clause 23(3) and insert :

“The contractor shall deliver to the Engineer, on a monthly basis, a return, in detail, of supervisory staff and the numbers of categorised classes of labour employed each day for the said period by the contractor for execution of the contract. Such return shall be submitted by the seventh day of the month following the month to be reported.”

24(1) Training of Local LabourAdd the following to Clause 24 :

It is expected from the Contractor that all people employed for the execution of labour based work, shall be properly trained and assisted in the execution of the works. (This must be done for all levels of employment).

26(3) Information in respect of PlantDelete the contents of Sub-clause 26(3) and insert the following :

The contractor shall deliver to the Engineer, on a monthly basis, a detailed inventory of Constructional Plant kept on site, full particulars given for each day of the month. Distinction shall be made between plant in working order and plant out of order. Such inventory shall be submitted at the monthly site meeting or by the seventh day of the month following the month to be reported on.

38(1) InsuranceOmit the wording of sub-clause 38(1)(a)(ii) in total. Insert the following wording to sub-clause 38(1)(a)(ii) : “for a sum as specified in the Appendix to Tender.”

Delete sub-clause 38(1)(d) and substitute : The following additional or varied insurances are to be provided by the contractor under this contract : None.

38(4) Proof of Payment Add the following paragraph to Sub-Clause 38(4):

Proof of insurance shall be submitted to the Employer prior to Commencement of the Works (Clause 12), and copies of the policies and proof of due payment of all premiums shall be presented to the Employer within twenty eight (28) days of the Date of Commencement.

38(7) Workmen's Compensation Amend Clause 38(7) to read as follows:

The Contractor shall provide proof that he has paid all contributions that are required in terms of the provisions of the Workmen's Compensation Act (Act No. 30 of 1941, as amended) within 28 days of the Commencement Date.

43(1) Rate of Progress Add the following :

No such instruction by the Engineer to expedite progress shall be the subject of additional com-pensation to the Contractor unless the instruction explicitly states that the Contractor is entitled to additional compensation, and cites the amount of such compensation or the basis upon which it is to be determined.

45(1) Time for Completion Amend this clause to read as follows:

The various portions or phases of the Works, as well as the whole of the Works, shall be completed by the Due Completion Date(s) as defined in Clause 1(1)(k) of these Conditions.



45(4) Relevant Adjustments to Preliminary and General Allowances Alter line 1 to read:

If an extension of time is granted by the Engineer, other than an extension resulting from abnormal climatic conditions in terms of the Project Specifications, the Contractor shall be paid such additional time.

46 Penalties Replace the entire contents of Clause 46 with the following:

46(1)(a) If the Contractor fails by the Due Completion Date to complete the Works, or any specific portion thereof that is identified in the Project Specifications and in the Appendix to Tender, to the extent which entitles him in terms of Clause 54(2) to receive a Certificate of Practical Completion for the Works or for the specific portion of the Works, then the Contractor shall be liable to the Employer for the sum(s) stated in the Appendix as (a) penalty(ies) for every day which shall elapse between the Due Completion Date for the Works or the specific portion of the Works and the actual Date of Practical Completion of the Works or of the specific portion.

46(1)(b) If before the issue of a Certificate of Practical Completion for the whole of the Works, or for any specific portion thereof that is identified in the Project Specifications and in the Appendix to Tender, any further part of the Works has been:

(i) certified as complete in terms of a Certificate of Practical Completion; or

(ii) occupied or used by the Employer, his agents, employees or other contractors (not being employed by the Contractor);

then the appropriate penalty for delay referred to in Sub-Clause 46(1)(a) above shall be reduced by the amount which is determined by the Engineer to be appropriate under the circumstances.

46(2) If the Contractor shall, without the prior written permission of the Engineer, in respect of any portions of the Works which are prescribed in the Project Specifications to be executed using labour intensive construction methods, or for which the maximum size and capacity of mechanical plant and equipment is restricted in terms of the Contract:

(a) fail to execute such portions of the Works, or any parts thereof, utilising labour intensive construction methods strictly in accordance with the provisions of the Contract; or

(b) utilise in the execution of such portions of the Works, or any parts thereof, mechanical plant or equipment which is in conflict with the terms of the Contract; or

(c) utilise in the execution of such portions of the Work, workers drawn from sources other than those allowed in terms of the Contract;

then the Contractor shall be liable to the Employer for the percentage that is stated in the Appendix of the value of the Works so executed in conflict with the provisions of the relevant Project Specification, as a penalty for non-compliance.

46(3) The imposition of penalties in terms of Sub-Clauses 46(1) and 46(2) shall not relieve the Contractor from his obligation to complete the Works, nor from any of his obligations and liabilities under the Contract.

46(4) All penalties for which the Contractor becomes liable in terms of Sub-Clauses 46(1) and 46(2) shall be accumulative. The Employer may, without prejudice to any other method of recovery, deduct the amounts of all such penalties from any monies in his possession that are or may become due to the Contractor.

46(5) The imposition of any penalties in terms of Sub-Clauses 46(1) and 46(2) shall not limit the right of the Engineer or the Employer to act in terms of Sub-Clause



58 (1)(b)(vi). In the case of the Engineer acting in terms of that sub-clause with respect to any default of the Contractor in relation to the matters mentioned in Sub-Clause 46(2), then the period of 14 days that is referred to in Sub-Clause 58(1)(b) shall be reduced to three (3) normal working days.

49(4) Changes in LegislationIn line 5 delete the words “… between the employer and the contractor …”

51(1) Claims procedureChange all terms “…28 days …” to “… 14 days …”

51(2) Extended period of claimsChange all terms “ … 28 days . . .” to “ . . . 14 days . . . “

51(5) Engineer’s rulingChange all terms “. . . 56 days . . .” to “. . . 28 days . . .”

52(4) Employer’s obligation to payIn line 2 delete the figure “21” and substitute the figure “14”.

In line 3 delete the word “said” and substitute the word “correct”

53 Variations exceeding 15 %Delete this clause in total.

58(1) Cancellation of the Contract by the EngineerAdd onto Clause 58(1) : “The employer shall also be entitled to cancel the contract for reasons beyond his (the employer’s) control. Such cancellation will be made in writing and three months in advance.”

58(7) Notices to Trustee/LiquidatorDelete the contents of Sub-clause 58(7) and insert :

If the provision of Sub-clause 58(1)(i), (ii) or (iii) apply, the employer shall be entitled to cancel the contract without further notice to the contractor, his trustee or liquidator, and to appoint another contractor, as determined in the sole discretion of the employer, to complete the works.

In such event, and notwithstanding any other provisions contained in this contract, the Employer shall be entitled to retain any and all amounts which may then be due to the contractor, whether certified or not, and to utilise such amounts for purposes of making payment to the other contractor appointed by the employer to complete the works.

61(6)(a) Special disputesReplace “Clause 61(1)” in the second line of Sub-Clause (a) with “Clause 58(1)”.

Contract Price Adjustment ScheduleDelete clause 1 of the Contract Price Adjustment Schedule and replace with the following:

1. In accordance with Clause 49(2), the value of each certificate issued in terms of Clause 52(1) shall be increased or decreased by the amount obtained by multiplying “Ac”, defined in Clause 2 of this schedule, by the Contract Price Adjustment Factor, rounded off to the fourth decimal place, determined according to the formula:

in which the symbols have the following meaning:

“x” is the proportion of “Ac” which is not subject to adjustment. Unless otherwise stated in the Appendix this proportion shall be 0.15.



“C” is the Consumer Price Index for the urban area nearest to the construction site as published in the Statistical News Release (P 0141.1, Table 4.1, Index for all items) of Statistics South Africa (formerly Central Statistical Service).

The suffix “o” denotes the basic index applicable to the base month, which shall be the month prior to the month in which the closing date for tenders falls.

The suffix “t” denotes the current index applicable to the month in which the last day of the period falls to which the relevant payment certificate relates.


Equipping of Boreholes Page (24)Part 1 2 3 4 5 6 7 8 9 Standard Specifications



PART 4 STANDARD SPECIFICATIONS


Equipping of Boreholes Page (25)Part 1 2 3 4 5 6 7 8 9 Standard Specifications

STANDARD SPECIFICATIONS4.1.1 SABS 1200 Standardised Specifications for Civil Engineering Construction

The applicable SABS 1200 Standardised Specification for this Contract shall be the following:

A - General

AB - Engineers office

C - Site clearance

DA - Earthworks (Small Works)

DB - Earthworks (Pipe Trenches)

DK - Gabions and pitching

GA - Concrete (small works)

HA - Structural steelwork (sundry items)

HB - Cladding and sheeting

L - Medium pressure pipelines

LB - Bedding (pipes)


Equipping of Boreholes Page (26)Part 1 2 3 4 5 6 7 8 9 Project Specifications: Portion 1



PART 5 PROJECT SPECIFICATIONS

Portion 1The Works




1 PS1 GENERAL DESCRIPTION OF THE WORKS................................................................1

2 PS 2 DESCRIPTION OF SITE AND ACCESS......................................................................1

3 PS 3 NATURE OF GROUND AND SUBSOIL CONDITIONS................................................1

4 PS 4 DETAILS OF THE CONTRACT...................................................................................1

5 PS 5 CONSTRUCTION PROGRAMME................................................................................1

5.1 PS5.1 Information to be made available....................................................................1

5.2 PS5.2 Labour Intensive Construction........................................................................1

5.3 PS5.3 Phasing of the Works.....................................................................................1

5.4 PS 5.4 Interruption in Work Schedule........................................................................1

5.5 PS 5.5 Format and Approval.....................................................................................1

5.6 PS 5.6 Partial Completion and Monthly Take Over....................................................1

5.7 PS 5.7 Penalties.......................................................................................................1

6 PS 6 SITE FACILITIES AVAILABLE.....................................................................................1

6.1 PS 6.1 Contractor’s Camp........................................................................................1

6.2 PS 6.2 Source of Water Supply.................................................................................1

6.3 PS 6.3 Source of Power Supply................................................................................1

6.4 PS 6.4 Housing.........................................................................................................1

6.5 PS 6.5 Ablution Facilities..........................................................................................1

7 PS 7 SITE FACILITIES REQUIRED.....................................................................................1

7.1 PS 7.1 For the Contractor.........................................................................................1

7.2 PS 7.2 For the Engineer...........................................................................................1

7.3 PS 7.3 Sanitary facilities...........................................................................................1

8 PS 8 STATUTORY REGULATIONS.....................................................................................1

9 PS 9 COMMUNITY LIAISON AND COMMUNITY RELATIONS............................................1

10 PS10 WORKMANSHIP AND QUALITY CONTROL..............................................................1

11 PS 11 FEATURES REQUIRING SPECIAL ATTENTION......................................................1

11.1 PS 11.1 Other Contractors........................................................................................1

11.2 PS 11.2 Construction within Built-up Areas...............................................................1

11.3 PS 11.3 Trenches in Narrow Road Reserves............................................................1

11.4 PS 11.4 Reinstatement of Fences.............................................................................1

11.5 PS 11.5 Protection of Buildings and Structures.........................................................1

11.6 PS 11.6 Care of the Site...........................................................................................1

11.7 PS 11.7 Control of Water..........................................................................................1

11.8 PS 11.8 Existing Services.........................................................................................1

12 PS 12 DRAWINGS, OPERATION AND MAINTENANCE MANUALS....................................1

13 PS 13 SAMPLES..................................................................................................................1

14 PS 14 NOTICES, SIGNS, BARRICADES AND ADVERTISEMENTS....................................1



15 PS 15 OPEN TRENCHES....................................................................................................1

16 PS 16 SPOIL MATERIAL.....................................................................................................1

17 PS 17 INFORMATION IN RESPECT OF PLANT..................................................................1

18 PS 18 INFORMATION IN RESPECT OF EMPLOYEES........................................................1

19 PS 19 ABNORMAL RAINFALL.............................................................................................1

20 PS 20 LABOUR AND PERSONNEL.....................................................................................1

20.1 PS 20.1 Contractors Personnel.................................................................................1

20.2 PS 20.2 Temporary Workforce..................................................................................1

20.3 PS 20.3 Labour Intensive Construction.....................................................................1

21 PS 21 SUBCONTRACTING..................................................................................................1

22 PS 22 TRAINING................................................................................................................. 1

22.1 PS 22.1 Artisan and Skills Training...........................................................................1

22.2 PS 22.2 In-House Training........................................................................................1



PORTION 1: THE WORKS[This portion to be adjusted to suite the project]

1 PS1 GENERAL DESCRIPTION OF THE WORKSTenders are invited for the equipping of boreholes, the execution of associated civil engineering works and the operation and maintenance thereof as part of the ______________________ Municipality Community Rural Water Supply Programme”. Works under this programme are to be executed and specifically only in this _________________ Municipality’s area of jurisdiction. The operation area is reflected in the Locality Plans in the National Context, Regional Context and District Context. Prospective tenderers must take note of the fact that the contract will be executed on the basis of a “Bill of Rates” contract. The contract entered into between the Employer and Contractor shall be binding for ___________ year (s) from the date of appointment of the contractor but can be extended for another year.

This contract comprises the equipping of boreholes, appurtenant civil engineering work and operation and maintenance thereof in _______________ districts, viz. _________________, ____________________, _______________________, _______________________ and ________________________, all part of the ______________________ Municipality’s Community Rural Water Supply Programme. Details of the Works are included in clause PS4 hereof. The works will be executed by means of “mechanical” and/or labour intensive methods.

The works to be executed under this contract consists of the following :

(i) Equipping of tested boreholes with pumps and power units as detailed in the document.

(ii) Erection of pump houses and appurtenant works.

(iii) Construction of water distribution systems.

(iv) Construction of secondary reticulation systems.

(v) Construction/erection of storage facilities associated with (iii) above.

(vi) Installation of piezometer tubes for monitoring of static water levels.

(vii) Installation of pre-paid water meters when requested.

(viii) Operation and Maintenance of the abovementioned infrastructure for a fixed period prior to handing it over to the Municipality.

2 PS 2 DESCRIPTION OF SITE AND ACCESSThe work to be undertaken is generally in or near existing villages in the districts mentioned above. The access to the individual sites is generally very poor and it could be expected that four wheel drive vehicles might be required at times.

It is of critical importance that Contractors should under all circumstances, liaise with the _____________________ Municipality’s regional representative prior to going on site to ensure that the Municipality’s PRO can inform people of work to be carried out by the Contractor. If the representative cannot be contacted, the Contractor should then not enter into a village for working purposes.

3 PS 3 NATURE OF GROUND AND SUBSOIL CONDITIONS The nature of ground and sub-soil conditions may vary from site to site. The Contractor must familiarise himself as far as is practically possible with soil conditions in the region.

4 PS 4 DETAILS OF THE CONTRACT The work required to be done entails the following :

(i) Establishment of the Contractor’s camp at borehole sites to be equipped.

(ii) Limited site clearance and earthworks (if necessary) to accommodate the borehole equipment. (Only on instruction of the Engineer or his Representative).



(iii) Equipping of boreholes with pumps and power units as specified by the Engineer (e.g. hand pumps, windmills, submersible, positive displacement or solar powered units).

(iv) Construction of structural steel, IBR cladded pump houses.

(v) Concrete work associated with the above-mentioned equipment.

(vi) Pipe work associated with the installation of pumping equipment..

(vii) Construction of elevated tank stands and tank footings, erection of pressed steel and/or polypropylene tanks and appurtenant pipe work.

(viii) Construction of pipe work for rudimentary water distribution systems.

(ix) Construction of pipe work for secondary water reticulations and house connections.

(x) Construction of rudimentary draw-offs and complete cattle drinking troughs.

(xi) Construction of farm reservoirs and reinforced concrete reservoirs.

(xii) Construction of reservoir roofs (on existing open reservoirs)

(xiii) Commissioning of the works on completion.

(xiv) Maintenance of the works for a period of 12 months.

(xv) Installation of piezometer tubes for monitoring static water levels.

(xvi) Installation of pre-paid water meters when requested.

(xvii) Supply of water level meters associated with (xv) above.

(xviii) Operation and Maintenance of all of the abovementioned infrastructure for a fixed period of time (as stated in the Appendix to Tender – Part 7.14), until handing over to the Municipality.

5 PS 5 CONSTRUCTION PROGRAMME 5.1 PS5.1 Information to be made available

Most of the boreholes to be equipped are still to be sited, drilled and test pumped. Subsequent to the test pumping of boreholes, management recommendations regarding the equipping of the boreholes will be provided by the geohydrologist to the Engineer. The engineer will provide the contractor with a list of specifications regarding the equipping of the boreholes. It is envisaged that the information will be made available not less than four weeks prior to the installation date, to enable the contractor to order the materials and programme the works.

5.2 PS5.2 Labour Intensive ConstructionThe principle of labour intensive construction for certain portions of the works to be executed are to be introduced. See clause PS20.3 for details regarding the above-mentioned.

5.3 PS5.3 Phasing of the WorksThe works will be scheduled, as far, as is practically possible, so that the Contractor can work uninterrupted for the duration of the contract.

The Contractor must take note of the fact that only inter-borehole movements will be paid for. (Item 1.1.7 in Schedule of Rates). It is also important to take note of the fact that such payment will be made only for the Contractor’s first equipment team (if more than one team are fielded) to move to a specific site.

No inter-district move payments will be paid. Inter-hole move payments shall be made only once per installation.

Should the Contractor be requested by the Engineer to do work not included in his above-mentioned programme, he will then be paid for the movement according to rates included in the Bill of Quantities. These movements are those which infringe the programme which had been drafted according to PS4 above.



5.4 PS 5.4 Interruption in Work ScheduleIf information or particulars as mentioned in Clause PS4 are not available from the Employer regarding the equipping of boreholes or appurtenant civil works for any period of time, the Contractor will be ordered in writing to discontinue work. The contractor will then be granted an extension of time. When the contractor is requested to resume work, the establishment cost will be paid as if the Contractor had moved in from another site as per the tender. No adjustment will be made to any of the rates in the Bill of Rates.

5.5 PS 5.5 Format and ApprovalAs soon as information is available with regard to a village to be reticulated, the Contractor shall supply, within 14 days, a suitable and realistic construction programme for the consideration of the Engineer.

This programme shall show the proposed scheduling and methods of execution of the Works and the resources to be allocated to each item or phase of execution of the Works and the resources to be allocated to each item or phase of the work. Quantities proposed for execution for a specific village and the anticipated cash flow based upon these quantities should be shown, due allowance being made for price escalations and retention moneys.

The Contractor will be expected to progress with the Works in accordance with the approved programme and shall not deviate from the order of execution shown in the programme without the prior approval of the Engineer or his Representative. Should such approval be given, an adjusted programme shall be produced within 7 days and submitted to the Engineer for evaluation. Progress in advance of the programme or certain phase of the Works shall not be considered adequate reason for poor progress on another portion or phase.

5.6 PS 5.6 Partial Completion and Monthly Take OverBoreholes equipped and appurtenant civil engineering work completed per village, will be taken over within two weeks after completion for which a Certificate of Completion will be issued.

The Operation and Maintenance period on the work completed will commence with the issuing of the Certificate of Completion. The retention of the completed work will be reduced by fifty percent to a maximum of five percent of the estimated value of work.

5.7 PS 5.7 PenaltiesThe penalties for late completion are indicated in the Appendix to Tender.

The penalty in respect of each village shall remain in force until the work for that particular village has been completed. The penalties for the villages will be applied independently and are accumulative.

6 PS 6 SITE FACILITIES AVAILABLE 6.1 PS 6.1 Contractor’s Camp

Each camp where the contractor(s) intends to establish, must be discussed and agreed upon with the local authorities prior to the establishment of the camp.

6.2 PS 6.2 Source of Water Supply Water supply will not necessarily be available at the camp or depot nor each construction site in each village.

The Contractor shall be responsible under the Contract for the supply and distribution at his cost of all water that he may require for purposes of constructing the Works. Accordingly, the Contractor shall pay all connection fees and consumption charges, and at his cost provide all connections, consumption meters, pipework, storage tanks, transport and other items associated with the supply of water for the Works.

Water for filling, testing and disinfecting the pipelines and structures will be made available by the Employer at no cost to the Contractor. However, should the pipelines and/or structures have to be drained and refilled due to defective materials or workmanship by the Contractor or by his subcontractors, then the water required for refilling shall be made available at the cost of the Contractor.



6.3 PS 6.3 Source of Power Supply Power supply will not necessarily be available at the camp or depot nor at each construction site.



6.4 PS 6.4 Housing The Contractor shall be permitted to house Key Personnel only within his camp site(s). At the commencement of the Contract, the Contractor shall inform the Engineer of his intentions regarding the housing of Key Personnel on Site, and he shall thereafter ensure that all such accommodation is kept neat and tidy, hygienic and properly controlled at all times. Should at any stage of the Contract the Employer and/or the Engineer be of the opinion that the housing of Key Personnel within the camp site(s) of the Contractor is causing disturbance or inconvenience to the landowner or to nearby residents, then the authority granted by this clause for the Contractor to house Key Personnel on Site may be withdrawn, either partially or entirely.

The Contractor shall at all times conform with all requirements contained in law or bylaws, as well any other requirements set by the controlling local authority.

6.5 PS 6.5 Ablution Facilities No ablution facilities are available at the camps and depots or construction sites.

7 PS 7 SITE FACILITIES REQUIRED 7.1 PS 7.1 For the Contractor

Whatever may be required for the satisfactory execution of the Contract.

7.2 PS 7.2 For the Engineer As specified under Part PSAB (Portion 2 of the Project Specifications).

7.3 PS 7.3 Sanitary facilities Water borne sewerage is not available on site. Chemical or flush toilets with on-site disposal shall be provided and maintained for the use of the Contractor’s personnel, the Engineer and representatives of the Employer at all camp sites that the Contractor may establish for construction of the Works. In addition, the Contractor shall at all times during construction of the Works provide adequate sanitary facilities on site so that all employees are at all times within easy reach of sanitary facilities.

8 PS 8 STATUTORY REGULATIONS The Occupational Health and Safety Act, Act 85 of 1993 (referred to as “the Act” below), and all regulations promulgated thereunder must be adhered to by the Contractor, with specific reference to the safety of all employees and the public, irrespective of whether such employees are employed by the Contractor or by his subcontractors (including local subcontractors). The Contractor, in entering into this Contract, hereby agrees with the Employer in terms of Section 37(2) of the Act, that the Contractor as an employer in its own right and in its capacity as Contractor for the execution of the Works, shall have certain obligations and that the following arrangement shall apply between the Contractor and the Employer to ensure compliance by the Contractor with the provisions of the Act, namely:-

(i) The Contractor undertakes to acquaint the appropriate officials and the employees of the Contractor with all relevant provisions of the Act, and the regulations promulgated in terms of the Act;

(ii) The Contractor undertakes that all relevant duties, obligations and prohibitions imposed in terms of the Act and regulations will be fully complied with; and

(iii) The Contractor hereby accepts sole liability for such due compliance with the relevant duties, obligations and prohibitions imposed by the Act and regulations, and expressly absolves the Employer and the Engineer from being obliged to comply with any of the aforesaid duties, obligations and prohibitions in respect of the Works; and

(iv) The Contractor shall be obliged to report forthwith to the Employer and the Engineer any investigation, complaint, or criminal charge which may arise as a consequence of the provisions of the Act and regulations pursuant to work performed on behalf of the Employer, and shall, on written demand, provide full details in writing of such investigation, complaint or criminal charge.



9 PS 9 COMMUNITY LIAISON AND COMMUNITY RELATIONS In all dealings with communities through which the Works are to be constructed, and in all dealings with workers employed from within such communities, the Contractor shall take due cognisance of the character, culture and circumstances of the specific community, and shall at all times use his best endeavours to avoid the development of disputes and rather to foster a spirit of co-operation and harmony towards the project.

The Contractor shall at all times, keep the Engineer fully informed regarding all matters affecting or negotiated between the Contractor and the community, and he shall attend all liaison meetings as may be arranged by the Engineer and/or the Employer. All matters concerning the community shall be discussed and where possible, resolved at such meetings.

Where any resolution during such negotiations or at such meetings shall be contrary to the terms and provisions of the Contract, the Contractor shall not give effect thereto without a prior written instruction from the Engineer.

Where the Contractor is of the opinion that any instruction of the Engineer issued in terms of this clause will result in the incurring of additional costs which were not provided for in his tendered rates and prices and/or that a delay in the progress of the Works will result, he shall be entitled to submit a claim in terms of Clause 51 of the Conditions of Contract, provided always that the period of fourteen (14) days referred to in Clause 51 shall be reduced to three (3) normal working days in respect of all claims submitted in terms of this clause.

10 PS10 WORKMANSHIP AND QUALITY CONTROL The onus to produce work that conforms in quality and accuracy of detail to the requirements of the Specifications and of the Drawings rests with the Contractor, and the Contractor shall, at his own expense, institute a quality-control system and provide experienced engineers, foremen, surveyors, materials technicians, other technicians and technical staff, together with all transport, instruments and equipment to ensure adequate supervision and positive control of the quality of the Works at all stages of the Contract.

The cost of the Contractor’s supervision and process control, including all testing carried out by the Contractor, will be deemed to be included in the rates tendered for the various items of work. The Contractor's attention is drawn to the provisions of the various Standardised Specifications regarding the minimum frequency of process control testing that is to be executed.

The Contractor shall, at his own discretion, increase this frequency where necessary to ensure adequate control of the quality of the Works at all times.

Upon completion and submission of each portion of the Works to the Engineer for examination, the Contractor shall furnish the Engineer with the results of relevant tests, measurements and levels, thereby indicating compliance with the Specifications. The Engineer will not examine or inspect any portion of work submitted for approval unless the request for inspection and approval is accompanied by relevant tests, measurements and levels indicating compliance.

11 PS 11 FEATURES REQUIRING SPECIAL ATTENTION 11.1 PS 11.1 Other Contractors

Drilling and/or testing programmes as well as normal maintenance contracts may be under way in the villages where holes are to be equipped. No additional payments will be made in this regard to the equipping contractors

11.2 PS 11.2 Construction within Built-up AreasThis aspect can hardly be over stressed. The bulk of the work is situated in inhabited residential areas. Meticulous care is required to ensure :

(a) convenient access to all houses during all stages of construction;

(b) ensuring the safety of the public during all stages of construction;

(c) extended liaison with concerned parties, including the local Tribal Authority, Water, Boards, District Councils, traffic departments, residents and management of businesses is imperative.



This will include notification in advance of the commencement of proposed works, etc.

VERY IMPORTANT:THE CONTRACTOR WILL BE REQUIRED TO APPOINT A PUBLIC RELATIONS OFFICER (PRO), WHO WILL FORM PART OF THE FULL-TIME STAFF COMPLEMENT. NO SEPARATE PAYMENT WILL BE MADE FOR SUCH A PRO

11.3 PS 11.3 Trenches in Narrow Road ReservesProspective tenderers must take note of the fact that at some places trench excavation will take place in fairly narrow road reserves/alleys.

The difficulty to overcome this obstacle must be incorporated in the tendered rates. No separate and/or additional payment will be made in this regard.

11.4 PS 11.4 Reinstatement of FencesThe Contractor shall give all land owners and residents a minimum of 48 hours notice of his intent to dismantle fences to properties, where indicated on the Drawings or so ordered by the Engineer.

The Contractor shall note all aspects relevant to the condition of existing fencing and shall take photographs there of prior to dismantling, and shall acquire the signature of the owner/occupant agreeing to such conditions.

After reinstatement, both the Contractor and the owner/occupant shall sign the form confirming that the condition of the fence is at least equivalent to its condition before dismantling.

11.5 PS 11.5 Protection of Buildings and StructuresThe Contractor shall give all residents or other parties owning a building or structure within an appropriate radius (not less than 100m) from any point of blasting, a minimum of 48 hours notice of his intent to execute any blasting work. The Contractor shall note all aspects relevant to the condition of the affected buildings and/or structures prior to blasting, and shall acquire the signature of the owners/occupants agreeing to such conditions.

Subsequent to blasting, both the Contractor and the owners/occupants shall sign a form confirming the condition of the buildings and/or structures and photographs shall be taken there of prior to blasting. In the event of damage to existing buildings and/or structures as a result of blasting, remedial work shall be done to the satisfaction of the owners/occupants at the Contractor’s expense.

Compliance with this clause will not relieve the Contractor of any of his responsibilities in terms of the Contract, or in terms of sub-clause 5.1.1.3 of SABS 1200D.

11.6 PS 11.6 Care of the Site At all times during construction of the Works and upon completion thereof, the Site of the Works shall be kept and left in a clean and orderly condition. The Contractor shall store all materials and equipment for which he is responsible in an orderly manner, and shall keep the Site free from debris and obstructions.

11.7 PS 11.7 Control of Water The Contractor shall at all times and in all respects be responsible for the handling of stormwater from higher-laying areas above the Works, and for the handling of any sub-surface water that may affect the Works. No separate payment shall be made in this regard, as all costs related thereto should be deemed to be included in the rates tendered for the various items of work that are included in the Schedule of Rates. Refer also to SABS 1200 A, clause 5.5, in this regard.

11.8 PS 11.8 Existing ServicesVillages may be traversed by various existing services including water, sewers, some electricity and GPO cables, the exact position of which are generally unknown. Where positions of services are known these will be shown on layout plans or information in this regard will be made available by the Engineer prior to construction commencing in an area. The contractor will be required to so schedule and programme his work that when works are disrupted due to the



influence of unexpected services encountered, construction can continue in other portions of the townships to allow the situation to be remedied by re-routing of new or existing services.

12 PS 12 DRAWINGS, OPERATION AND MAINTENANCE MANUALS All information in the possession of the Contractor that is required by the Engineer's Representative in order to complete the As-Built drawings and to prepare a completion report for the Employer must be submitted to the Engineer's Representative before a Certificate of Practical Completion will be issued for the Works. Similarly, the Contractor will be required to submit full details of all pipes, valves, meters and specials in a suitable loose bound format, including any special operational and maintenance procedures related thereto, for incorporation in the overall operation and maintenance manual for the Scheme prior to the issue of a Certificate of Completion for the Works.

Only figured dimensions on the Drawings may be used in the interpretation thereof, and the Drawings shall not be scaled unless the Contractor is so instructed by the Engineer in writing. The Engineer will upon written request provide any dimensions that may have been omitted from the Drawings.

13 PS 13 SAMPLES Materials or work that do not conform to the approved samples, submitted in terms of Sub-Clause 26(4) of the Conditions of Contract, will be rejected. The Engineer reserves the right to submit samples for testing to ensure that the material represented by the sample meets the specified requirements.

14 PS 14 NOTICES, SIGNS, BARRICADES AND ADVERTISEMENTS Notices, signs and barricades (required in terms of Clause 34 of the Conditions of Contract) as well as advertisements may only be erected where approved by the Engineer. The Contractor shall be responsible for their supply, erection, maintenance and ultimate removal and shall make provision for this in his tendered rates.

The Engineer shall have the right to have any sign, notice or advertisement moved to another location, or to have it removed from the Site of the Works, should it in any way prove to be unsatisfactory, inconvenient or dangerous to the general public.

15 PS 15 OPEN TRENCHESTrenches may not be left open during the builder’s holidays, and shall be safeguarded at all times from danger to the public. Safe trench-crossings shall be provided at all intersections with accesses to properties and with public roads and paths. The length of trench left open at any one time may be restricted by the Engineer, should he consider such restriction to be in the interests of public safety.

16 PS 16 SPOIL MATERIAL No indiscriminate spoiling of materials will be permitted. Surplus or unsuitable materials shall be spoiled at sites designated by the Engineer for this purpose. All spoiling shall comply with the applicable statutory and municipal regulations of the local or rural authority in whose area it is located.

17 PS 17 INFORMATION IN RESPECT OF PLANT Information relating to plant on Site shall be recorded in the Daily Diary. In addition, the Contractor shall deliver to the Engineer, on a monthly basis, a detailed summary of construction plant kept on the Site, full particulars given for each day of the month. Distinction shall be made between plant in working order and plant out-of-order.

Such inventory shall be submitted by the first day of the month following the month to be reported.

18 PS 18 INFORMATION IN RESPECT OF EMPLOYEES Information relating to labour and management on Site shall be recorded in the Daily Diary. In addition, the Contractor shall deliver to the Engineer, on a monthly basis, a detailed summary of



supervisory staff, labour employed (own and local labour) by category, and sub-contractors (both local and imported) for each day of the month. Such return shall be submitted by the first day of the month following the month to be reported.

19 PS 19 ABNORMAL RAINFALL Extension of time for completion of the Contract shall be allowed in the event of abnormal rainfall in accordance with the following formula:

V = (Nw - Nn) + (Rw - Rn)/20

Where

V = Extension of time in calendar days for the calendar month under consideration

Nw = Actual number of days during the calendar month under consideration on which a rainfall of 10mm and more is recorded

Rw = Actual total rainfall in mm recorded during the calendar month under consideration.

Nn = Average number of days, derived from rainfall records, on which a rainfall of 10mm and more was recorded during the relevant calendar month as per the data tabulated hereinafter

Rn = Average total rainfall in mm for the relevant calendar month, derived from rainfall records, as tabulated hereinafter

Where the extension of time due to abnormal rainfall has to be calculated for portion of a calendar month, pro rata values shall be used.

Should V be negative for any particular month, and should its absolute value exceed the corresponding value of Nn, then V shall be taken as being equal to minus Nn. The total extension of time to be granted shall be the algebraic sum of all the monthly extensions, provided that if this total is negative then the time for completion shall not be reduced due to subnormal rainfall.

Rainfall records for the period of construction shall be taken on Site. The Contractor shall provide and install all the necessary equipment for accurately measuring the rainfall per village. The Contractor shall also provide, erect and maintain a security fence plus gate, padlock and keys at each measuring station, all at his own cost. The Engineer or his Representative shall take and record the daily rainfall readings. The Contractor shall be permitted to attend these readings, in the company of the Engineer’s Representative. Access to the measuring gauge(s) shall at all times be under the Engineer's control.

The rainfall records applicable to this Contract are those recorded at ______________from 19____-200__. The following values of Nn and Rn shall apply:

MONTH Rn (mm) Nn (days)

January

February

March

April

May

June

July

August

September

October

November



December

TOTAL

20 PS 20 LABOUR AND PERSONNEL 20.1 PS 20.1 Contractors Personnel

The Contractor shall limit the utilisation of his permanently employed personnel to that of key personnel only on the Works, as defined below, and shall execute and complete the Works utilising a temporary workforce employed directly by the Contractor and/or by his sub-contractors, using the assistance of the Labour Desk(s), or similar arrangements which have been established for this purpose from the local community which is established in proximity to the Works or which will be consumers from the Scheme.

Without derogating from the Contractor’s obligations to complete the Works within the specified time for completion in terms of Clause 45(1) of GCC 1990, the numbers in each category of the Contractor's key personnel, as stated by the Contractor in Part 7 of his Tender, will be strictly controlled during the contract period and any increase in numbers will be subject to the prior approval of the Employer.

Key personnel means all contracts managers, site agents, site clerks, materials and survey technicians, quantity surveyors, trainers, supervisors, foremen, skilled plant operators, brick layers, welders, shutter hands and the like, and all other personnel in the permanent employ of the Contractor or his sub-contractors who possess special skills, and/or who play key roles within the Contractor's or his subcontractor's operations.

The Engineer may at his discretion, upon receipt of a written and fully motivated application from the Contractor, and where he deems the circumstances so warrant, authorise in writing that the Contractor may utilise in the execution of the Works, workers not being his key personnel but who are in his permanent employ. Without limiting the generality of application of this sub-clause, circumstances which may be considered by the Engineer to warrant authorisation of the use of the Contractor's permanent employees other than key personnel, include:

(a) The unavailability from local sources of sufficient numbers of temporary workers and/or sub-contractors to execute the Works, provided always that the Contractor has satisfied the Engineer that he has exercised his best endeavours and taken all reasonable actions to recruit sufficient temporary workers and sub-contractors from local sources.

(b) The unavailability within the temporary worker pool and/or from subcontractor sources available to the Contractor in terms of the Contract, of sufficient skills necessary to execute the Works or specific portions thereof, in situations where the completion period allowed in the Contract is insufficient to facilitate the creation of the necessary skills through the provision of suitable training as contemplated in the Contract;

(c) Any other circumstances which the Engineer may deem as constituting a warrant.

20.2 PS 20.2 Temporary WorkforceThe Contractor shall employ labour from the local communities through the Labour Desk(s), or similar arrangements which have been established for this purpose. Accordingly, the workforce that is employed on Site shall consist of local residents, except for approved key staff in the permanent employ of the Contractor, to the maximum extent that is compatible with the requirements of Clause 24 of the Conditions of Contract.

The Labour Desk(s), or similar arrangements which have been established for this purpose shall assist in identifying available local labour and, where available, semi-skilled labour as well as local sub-contractors. The Labour Desks shall also assist and advise regarding conditions of employment, minimum wages, disputes and disciplinary procedures. The function of the Labour Desk(s) shall however in no way diminish the responsibilities of the Contractor in terms of Clause 23 of the Conditions of Contract.



Although the Contractor shall adhere to the statutory minimum wage rates (see Clause 6(5) of the Conditions of Contract), he is however at liberty to negotiate additional incentive payments based on performance.

A contract of employment or subcontract should be signed between the Contractor and each of his employees or sub-contractors, as the case may be. Likewise contracts of employment must be entered into between each such sub-contractor, and each of the specific subcontractor's employees. Employment and subcontract agreements shall make clear reference to at least the following conditions:

The minimum agreed wage rate per hour in respect of labourers;

The agreed pay rate per unit of production where applicable;

UIF and WCA payments;

Minimum working hours per day;

Start and end times of a daily shift;

Lunch break times;

Company Policy regarding :

Rain time

Sickness and absenteeism

Disciplinary matters

Grievances

Method and frequency of payment;

Work clothes and safety equipment to be issued.

All the above-mentioned provisions shall apply to local personnel to be employed for operation and maintenance purposes, as prescribed in Particular Specification PM.

20.3 PS 20.3 Labour Intensive Construction The Employer has decided that labour intensive construction methods are to be introduced and practised in some of the equipping activities of this project.

Labour Intensive Construction shall mean the economically efficient employment of as great a portion of labour as is technically feasible to produce a standard of construction as demanded by the Specifications with completion by the Due Completion Date, thus the effective substitution of labour for equipment.

Appropriate portions of the Works included in the Contract shall be executed using labour intensive construction methods. These portions of the Works shall be constructed utilising only locally employed labour and/or the labour of local sub-contractors, supplemented to the extent necessary and unavoidable by the Contractors key personnel as provided for in sub-clause PS20.1, unless otherwise instructed by the Engineer and in accordance with the further provisions of the relevant sections of Portion 2 of the Project Specifications. The portions of the Works to be executed using labour intensive construction methods are:

clearing and grubbing of the Site;

bedding, selected fill, backfilling and compaction of all pipe trenches irrespective of depth, but assisted by mechanical compaction equipment in order to achieve the specified densities;

excavation of pipe trenches where the ground conditions and trench depths permit economic production;

transportation and spoiling of all trench materials, where the disposal site is located within 20 metres of source;

removal of oversized materials to the edge of the roadway during the construction of roads and streets;



laying, testing and disinfection of all pipelines, including all fittings, valves and house/erf connections;

construction of all manholes, valve chambers, thrust blocks, pipeline markers and the like (earth-, concrete-, brick- and metal works);

construction of the rudimentary draw-off assemblies;

mixing, transporting, placing and finishing of all concrete;

dismantling and re-erection of fences; and

cleaning and tidying up of the Site.

In respect of those portions of works which are not listed above, the construction methods adopted and plant utilised shall be at the discretion of the Contractor, provided always that the construction methods adopted and plant utilised by the Contractor are appropriate in respect of the nature of the Works to be executed and the standards to be achieved in terms of the Contract.

21 PS 21 SUBCONTRACTINGPS 21.1 The Contractor shall appoint such authorities and/or specialist subcontractors and suppliers

as may be designated or nominated by the Employer or the Engineer for those portions of the Works that are described in Part PSA in Portion 2 of the Project Specification.

PS 21.2 The Contractor shall sub-let to local small sub-contractors appropriate portions of the works that are designated in Clause PS 20.3 as being reserved for labour intensive construction methods.

PS 21.3 As required by Clause 8(4) of the Conditions of Contract, the Contractor shall be responsible for all work carried out by sub-contractors (whether nominated by the Employer or selected by the Contractor) on his behalf. The Engineer will not liaise directly with any such sub-contractor, nor will he become involved in any problems and/or disputes related to payments, programming, workmanship, etc, unless provided for in the Conditions of Contract. Such problems and/or disputes shall remain the sole concern of the Contractor and his sub-contractors.

PS 21.4 The Engineer may at his discretion, upon receipt of a written and fully motivated application from the Contractor, and where he deems the circumstances so warrant, and provided always that the Contractor has complied fully and in all respects with the provisions of the Contract pertaining to subletting to local sub-contractors or has utilised his best endeavours to comply therewith, authorise in writing that the Contractor may employ local residents in terms of Clause PS 20.2 with the sole intent of executing on-the-job training of such local residents to suitable levels of skill that will enable the Contractor to sub-let appropriate portions of the Works as specified in Clause PS 20.2 to such local residents.

Without limiting the generality of application of this sub-clause, circumstances which may be considered by the Engineer to warrant such authorisation include:

(a) non-receipt of valid or acceptable tenders/quotations from local sub-contractors;

(b) serious default or failure of appointed local sub-contractors;

The Engineer shall not grant such authority in cases where it may reasonably be concluded on the available evidence that the invitation of further tenders/quotations in accordance with the terms of the Contract, is likely to result in the successful completion of the portions of the Works concerned by local sub-contractors.

Should the Contractor, after suitable due endeavour, be unable to identify local residents suitable for and desiring to train as sub-contractors for portions of the Works as specified in Clause PS 20.2, then the Contractor shall be permitted to undertake the Works in question with his own workforce as provided for in Clause PS 20.1 above.

The Engineer shall monitor progress achieved with subcontractor training, and successful completion of this training shall be subject to his approval or instruction. The Contractor shall tender rates for the training of sub-contractors and labour. See Clause PS 22 in this regard.



PS 21.5 As specified in Clause PS 20, the Contractor shall approach the Labour Desk or similar arrangements which have been established for purposes of the Contract for assistance and advice regarding conditions of employment, minimum wages, disputes and disciplinary procedures in respect of local sub-contractors.

22 PS 22 TRAINING22.1 PS 22.1 Artisan and Skills Training

When required in respect of those portions of the Works that are listed under PS 20.3, and where insufficient skills are currently available within the identified communities via the Labour Desks or from local sub-contractors, the Engineer may, after due consideration and subject to budget constraints, authorise, in writing, the training of local labour in specific trades or other skills for direct employment on the Works or as local sub-contractors. Such training shall be carried out by specialists and shall be consistent with standards that are approved at industry level, such as training provided by CEITS or by the APEX Training Centre, or by training organisations that are certified by these bodies. The cost of this training shall be borne by the Employer, and the Contractor will be compensated for actual costs incurred in this regard under the Prime Cost item that has been included for this purpose in Schedule 2.

22.2 PS 22.2 In-House TrainingAlternatively, under similar conditions and subsequent to due evaluation of all relevant factors, the Engineer may authorise, in writing, that in-house training of local labour be executed by the Contractor utilising the services of approved skilled key-personnel or artisans in his employ. The Contractor shall tender rates for such training, inclusive of all training materials, construction materials (pipes, fittings, brick, sand, cement etc) and small tools. Payment will be made to the Contractor as provided in Schedule 1 of the Schedule of Rates.





PART 5 PROJECT SPECIFICATIONS

Portion 2Variations to Standardised Specifications and Additional Clauses



TABLE OF CONTENTSPSA GENERAL PAGE NO

1 PSA1 SPECIFICATION DRAWINGS (Clause 2.7)................................................................1

2 PSA2 QUALITY (Clause 3.1)................................................................................................1

3 PSA3 MATERIALS...............................................................................................................1

4 PSA4 PLANT (Clause 4.3)....................................................................................................1

5 PSA5 CONSTRUCTION.......................................................................................................1

6 PSA6 TESTING (Clause 7)...................................................................................................1

7 PSA7 SITE CORRESPONDENCE.......................................................................................1

8 PSA8 SITE MEETINGS........................................................................................................1

9 PSA9 PAYMENT (Clause 8.2)..............................................................................................1

10 PSA10 REPORTS................................................................................................................1

11 PSA11 SUMS STATED PROVISIONALLY (Clause 8.5).......................................................1

12 PSA12 PRIME COST ITEMS (Clause 8.6)............................................................................1

13 PSA13 ADJUSTMENT OF PRELIMINARY AND GENERAL ITEMS DUE TO RAIN..............1

14 PSA14 ADJUSTMENT OF PRELIMINARY AND GENERAL TIME-RELATED ITEMS...........1

15 PSA15 ADJUSTMENT OF PRELIMINARY AND GENERAL ITEMS DUE TO INTERRUPTION IN WORK SCHEDULE.........................................................................................................1

16 PSA16 PAYMENT FOR ESTABLISHMENT OF FACILITIES AND ADDITIONAL ESTABLISHMENT OF FACILITIES ON THE CONTRACTS.................................................1

PSAB ENGINEER'S OFFICE

1 PSAB1 NAME BOARDS (Clause 3.1)...................................................................................1

2 PSAB2 OFFICE BUILDING (Clause 3.2)..............................................................................1

3 PSAB3 TELEPHONE (Clause 5.4)........................................................................................1

4 PSAB4 SURVEY ASSISTANTS (Clause 5.5)........................................................................1

5 PSAB5 SURVEY EQUIPMENT............................................................................................1

6 PSAB6 CARPORTS.............................................................................................................1

7 PSAB7 LABORATORY.........................................................................................................1

PSC SITE CLEARANCE

1 PSC1 DISPOSAL OF MATERIAL (Sub-Clauses 3.1 and 8.2.1).............................................1

2 PSC2 AREAS TO BE CLEARED AND GRUBBED (Clause 5.1)............................................1

3 PSC3 PRESERVATION OF TREES AND SHRUBS (Sub-Clause 5.2.3)...............................1

4 PSC4 OVERHAUL (New Sub-Clause)..................................................................................1

PSDA EARTHWORKS (SMALL WORKS)



1 PSDA1 FREEHAUL AND OVERHAUL (Clause 5.2.5)...........................................................1

2 PSDA2 BORROW PITS (Clause 5.2.2.2)..............................................................................1

3 PSDA3 DISPOSAL OF SURPLUS MATERIAL.....................................................................1

4 PSDA4 HAUL AND SPOIL ROADS......................................................................................1

PSDB EARTHWORKS (PIPE TRENCHES)

1 PSDB1 MATERIALS (Clause 3)............................................................................................1

2 PSDB2 PLANT.....................................................................................................................1

3 PSDB3 ACCOMMODATION OF TRAFFIC (Sub-Clause 5.1.3).............................................1

4 PSDB4 EXISTING SERVICES (Sub-Clauses 5.1.4)..............................................................1

5 PSDB5 TRENCH WIDTHS (Sub-Clauses 4.1 and 5.2)..........................................................1

6 PSDB6 MINIMUM BASE WIDTH (Subclause 5.2).................................................................1

7 PSDB7 TRENCH BOTTOMS (Sub-Clause 5.5)....................................................................1

8 PSDB8 DISPOSAL OF EXCAVATED MATERIAL (Sub-Clauses 5.6.3 and 5.6.4).................1

9 PSDB9 FREEHAUL AND OVERHAUL (Sub-Clause 5.6.8)...................................................1

10 PSDB10 AREAS SUBJECTED TO TRAFFIC LOADS (Clause 5.7.2)....................................1

11 PSDB11 REINSTATEMENT OF EXISTING BITUMEN SURFACED ROADS (Clause 3.6 and 5.9.4) 1

12 PSDB12 MEASUREMENT AND PAYMENT (Clause 8.3.2)...................................................1

PSDK............GABIONS AND PITCHING

1 PSDK1 PITCHING (Sub-Clause 3.2.1.20..............................................................................1

PSGA- CONCRETE (SMALL WORKS)

1 PSGA1 CEMENT (Sub-Clause 3.2.1)...................................................................................1

2 PSGA2 CONCRETE FINISHES (Sub-Clause 4.4.2)..............................................................1

3 PSGA3 STRENGTH CONCRETE (Sub-Clause 5.4.1.5)a......................................................1

4 PSGA4 ANCHOR AND THRUST BLOCKS...........................................................................1

5 PSGA5 GROUTING TO MACHINE AND STRUCTURAL BED PLATES (Sub-clause 5.5.13) 1

PSHA- STRUCTURAL STEELWORK (SUNDRY ITEMS)

1 PSHA1 GRADE OF STEEL (Sub-Clause 3.1.1)...................................................................1

2 PSHA2 SHOP DRAWINGS (Sub-Clause 5.1.2)....................................................................1

3 PSHA3 WELDING (Sub-Clause 5.3.4)..................................................................................1

4 PSHA4 PROTECTIVE TREATMENT (Sub-Clause 5.3.9)......................................................1



PSL MEDIUM PRESSURE PIPELINES

1 PSL1 WATER SUPPLY MAINS............................................................................................1

2 PSL2 GRADE OF STEEL FOR STEEL PIPES.....................................................................1

3 PSL3 PIPE COUPLINGS FOR OTHER PIPES (Additional to clause 3.7)..............................1

4 PSL4 FIBRE-CEMENT PIPE FITTINGS (Clause 3.8.1)........................................................1

5 PSL5 VALVES (Clause 3.10)................................................................................................1

6 PSL6 STEEL FLANGES (Clause 3.8.3)................................................................................1

7 PSL7 CORROSION PROTECTION (Clause 3.9)..................................................................1

8 PSL8 HANDLING AND RIGGING (Clause 4.1).....................................................................1

9 PSL9 SETTING OUT (Clause 4.2)........................................................................................1

10 PSL10 LAYING AND JOINTS...............................................................................................1

11 PSL11 BACKFILL................................................................................................................. 1

12 PSL12 TOLERANCES..........................................................................................................1

13 PSL13 PIPELINE MARKERS...............................................................................................1

14 PSL14 MARKING OF ROUTE AND POSITION....................................................................1

15 PSL15 STANDARD HYDRAULIC PIPE TEST (Clause 7.3)...................................................1

16 PSL16 MEASUREMENT AND PAYMENT............................................................................1

PSLB - BEDDING (PIPES)

1 PSLB1 BEDDING (Sub-Clause 3.3)......................................................................................1

2 PSLB2 MATERIAL NOT AVAILABLE FROM TRENCH EXCAVATION (Clause 3.4.2)...........1

3 PSLB3 CLASS A BEDDING (Sub-Clause 5.2.1)...................................................................1

4 PSLB4 CONCRETE CASING TO PIPES (Sub-Clause 5.4)...................................................1

5 PSLB5 TOLERANCE ON COMPACTION OF BEDDING MATERIAL....................................1

PB EQUIPPING OF BOREHOLES

1 PB1. SCOPE........................................................................................................................ 1

2 PB2. GENERAL................................................................................................................... 1

3 PB3. REMOVAL OF EXISTING EQUIPMENT FROM BOREHOLES....................................1

4 PB4. DESIGN, MEASUREMENTS AND RECORDS.............................................................1

5 PB5. HAND PUMPS.............................................................................................................1

6 PB6. WINDMILLS AND WINDMILL EQUIPMENT.................................................................1

7 PB7. DIESEL DRIVEN ENGINES.........................................................................................1

8 PB8. BOREHOLE PUMPS...................................................................................................1

9 PB9. SUBMERSIBLE PUMPS..............................................................................................1



10 PB10. ANCILLARY PIPE WORK..........................................................................................1

11 PB11. EQUIPMENT.............................................................................................................1

12 PB12. ELECTRIC MOTORS.................................................................................................1

13 PB13 ENGINE PROTECTION COVERS/SHELTERS...........................................................1

PC CONSTRUCTION OF RESERVOIRS AND DRINKING TROUGHS

1 PC1. CONCRETE RESERVOIRS WITHOUT ROOFS..........................................................1

2 PC2. REINFORCED CONCRETE RESERVOIRS WITH ROOFS.........................................1

3 PC3. CONCRETE WATER TROUGHS................................................................................1

PD ELECTRICAL WORK AT BOREHOLES

1 PD1 SCOPE OF ELECTRICAL INSTALLATION...................................................................1

2 PD2 INTERPRETATIONS....................................................................................................1

3 PD3 GENERAL REQUIREMENTS.......................................................................................1

4 PD4 ELECTRICAL CABLES, CABLE TERMINATING GLAND AND EARTH WIRES............1

5 PD5 ELECTRICAL DISTRIBUTION AND MOTOR CONTROL BOARDS..............................1

6 PD6 FUNCTIONAL REQUIREMENTS..................................................................................1

7 PD7 EXTERNAL CONTROL AND SENSING UNITS ASSOCIATION WITH ELECTRICAL DISTRIBUTION BOARDS AND CONTROL BOARDS..........................................................1

8 PD8 INSTALLATION AND COMMISSIONING......................................................................1

9 PD9 SPARES....................................................................................................................... 1

10 PD10 POWER AND LIGHTNING INSTALLATION OF BUILDINGS......................................1

11 PD11 DRAWINGS AND OPERATION MANUALS................................................................1

12 PD12 APPLICATION FOR ELECTRICAL SUPPLY...............................................................1

13 PD13 MEASUREMENT AND PAYMENT..............................................................................1



PORTION 2: VARIATIONS TO STANDARD SPECIFICATIONS AND ADDITIONAL CLAUSES

PSA GENERAL

1 PSA1 SPECIFICATION DRAWINGS (CLAUSE 2.7)Specification Drawings may be included in this document as annexures to the Project and Particular Specifications. Where such Specification Drawings depict items and standard structures according to layouts and details differing from those shown in the Standardised Specifications, the layouts and details shown in the annexures to the Project and Particular Specifications shall be adopted.

2 PSA2 QUALITY (CLAUSE 3.1)All material used in the Works shall, where such mark has been awarded for a specific type of material, bear the SABS mark. Alternatively, the Contractor shall furnish the Engineer with certificates of compliance of materials, which bear the official mark of the appropriate standard.

2.1 PSA2.1 DEFINITIONSAdd the following :

Task - a quantified activity or operation.

Daily task - a task that is required to be completed within a working day.

Task remuneration - remuneration as paid for a completed task or

job.

Daily rate - the remuneration of a day's work.

Daily wage - see daily rate.

Daily task remuneration - the remuneration for a completed daily task.

Labour-intensive construction - the economically efficient employment of as great a portion of labour as is technically feasible to produce as high a standard of construction as demanded by the specifications and allowed by the funding available, thus the effective substitution of labour for equipment. (Note : This definition is not Contract specific, but applies to the project as a whole. This Contract is a part of such a project).

3 PSA3 MATERIALS3.1 PSA3.1 Supply of Materials

The Contractor will be responsible to supply all the materials necessary for the proper execution of the works. He shall also be fully responsible for quality of materials used and/or installed.

4 PSA4 PLANT (CLAUSE 4.3)Except where the use of plant is essential in order to meet the specified requirements by the Due Completion Date, the Contractor shall use only hand tools and equipment in the construction of those portion(s) of the Works that are required in terms of the Project Specifications to be constructed using labour intensive construction methods.

5 PSA5 CONSTRUCTION5.1 PSA5.1 Setting Out of the Works

Where labour-intensive work is specified, the Contractor shall also be responsible for the setting out of daily tasks.

6 PSA6 TESTING (CLAUSE 7)All test results obtained by the Contractor in the course of his process control of the Works shall be submitted to the Engineer or his Representative prior to requesting inspection of the relevant



portions of the Works. Any request for inspection shall be submitted on the prescribed forms that are appended as annexures to the Specifications.

(a) The Contractor shall make suitable arrangements for process control prior to commencement with the Works. Should he intend using site personnel for this purpose he shall ensure that suitably trained and competent personnel take charge of the necessary test work, and that the necessary equipment is at their disposal prior to commencement of the Works. Failure to comply with these requirements shall be just cause for the Engineer to order suspension of the Works without additional remuneration in terms of Clause 42 of the Conditions of Contract, or for him to recommend determination to the Employer in terms of Clause 58 thereof.

(b) The Contractor shall deliver to the Engineer, for his consideration, quality assurance programmes (as obtained from all the Contractor’s proposed suppliers of pipes, valves and specials) prior to the Contractor’s appointment of any suppliers.

7 PSA7 SITE CORRESPONDENCE7.1 PSA7.1 Instructions by the Engineer

Site instructions by the Engineer, addressed to the Contractor at his office on the Site, will be numbered consecutively and will be deemed to have been received by the Contractor's Representative unless a break in the sequence of numbers is brought to the notice of the Engineer in writing immediately.

7.2 PSA7.2 Site DiaryA site diary, which will be supplied by the Engineer, must be filled in on a daily basis and submitted to the Engineer on a monthly basis. No claims will be considered without the site diary’s schedule properly completed (on a daily basis) and submitted.

8 PSA8 SITE MEETINGS The Contractor and his authorised representative shall attend all meetings held on the Site with the Employer and the professional team at dates and times to be determined by the Engineer. Such meetings will be held to evaluate the progress of the Contract, and to discuss matters pertaining to the Contract which any of the parties represented may wish to raise. It is not the intention to discuss day-to-day technical matters at such meetings.

9 PSA9 PAYMENT (CLAUSE 8.2)Monthly Progress Payment Certificates shall be submitted to the Engineer's Representative on Site not later than the 15th of each month (or on the last working day prior to this date) in order to allow for checking and reconciliation of all quantities, rates, extensions and additions in the certificate.

Each progress payment certificate shall include work executed or reasonably expected to be executed up to the 30th day of the specific month. The Engineer’s Representative shall have a period of five (5) calendar days to review the draft certificate in collaboration with the Contractor. All quantity calculations and certificates submitted by the Contractor for checking shall be in accordance with an agreed standard format.

Upon agreement by the Engineer's Representative by not later than the 20th of each month, the certificate shall be submitted by the Contractor in a neat typed form in accordance with the prescribed format, and with the correct spelling, to the Engineer by not later than the 25th of each month (or on the first working day thereafter), together with four additional copies, for certification.

Where day works have been instructed by the Engineer, the Contractor shall submit the returns to the Engineer for signature and approval within twenty-four (24) hours of the end of the working day on which the work was executed. Day work returns shall be submitted on forms following an agreed standard format. Failure to comply with the terms of this clause ill result in non-payment for such day works.



The tax invoice submitted with the certificate shall be dated the 1st of the month following the period certified. All costs for the preparation and submission of progress certificates shall be borne by the Contractor.

10 PSA10 REPORTSThe submission of each monthly payment certificate shall be accompanied by a completed Equipping Report (Form BH34).

This report is a pre-requisite for the approval of each monthly payment certificate and shall be completed in full to illustrate all work completed the preceding month, as well as work in progress at the time of submission of the report.

Each of these reports must be accompanied with the relevant, completed appurtenant Borehole Schedules (refer to the Annexures). Relevant day work reference must be attached to each Equipping Schedule.

Labour intensive activities must be reported separately.

11 PSA11 SUMS STATED PROVISIONALLY (CLAUSE 8.5)11.1 PSA11.1 Materials for Dayworks

A Provisional Sum has been included in Schedule 1 for materials to be used during the execution of day works. In addition to the abovementioned amount, provision is made in Schedule 1 for a mark-up on the materials used during the execution of the day works by the Contractor. Payment made shall be regarded as full compensation for overheads, charges and profit on the materials that are used when executing day works.

11.2 PSA11.2 Royalties for Borrow MaterialsA Provisional Sum has been included in Schedule 1 for any royalties that may become payable by the Contractor in obtaining suitable borrow materials from sources designated by the Engineer. Payment will be based on the royalties actually and necessarily paid. In addition to the above amounts, provision is made in Schedule 1 for a mark-up on any payments made by the Contractor in this regard. The mark-up shall be regarded as full compensation for overheads, charges and profits as provided for in clause 48(2) of the Conditions of Contract.

12 PSA12 PRIME COST ITEMS (CLAUSE 8.6)12.1 PSA12.1 Artisan and Skills Training

A Prime Cost Item has been included in Schedule 1 for payments to be made to specialists for the training of unskilled or semi-skilled persons in industry accredited management and generic skills. Payment to the Contractor will be based on invoices certified by the Engineer and issued by training specialists to the Contractor for work undertaken in terms of this item.

In addition to the above amounts, provision is made in Schedule 1 for a mark-up on any payments made by the Contractor in this regard. The mark-up shall be regarded as full compensation for overheads, charges and profits as provided for in Clause 48(2) of the Conditions of Contract.

12.2 PSA12.2 Acceptance Control Testing of Earthworks A Prime Cost Item has been included in Schedule 1 for acceptance testing of earthworks ordered by the Engineer to be undertaken by a commercial laboratory. Payment will be based on the actual invoicing by the laboratory to the Contractor. In addition to the above-mentioned amount, provision is made in Schedule 1 for a mark-up on any payments made by the Contractor in this regard. The mark-up shall be regarded as full compensation for overheads, charges and profits as provided for in Clause 48(2) of the Conditions of Contract. In addition to the above amount, provision is made in Schedule 1 for a mark-up on any payments made by the Contractor. This mark-up shall be regarded as full compensation for overheads, charges and profits as provided for in Clause 48(2) of the Conditions of Contract.

12.3 PSA12.3 Telephone Calls and Rental A Prime Cost Item has been included in Schedule 1 for telephone calls and facsimile transmissions as well as rental and maintenance associated with the telephone(s) to be supplied



to the Engineer’s Representative(s) for the duration of the Contract as specified in section PSAB below. Payment will be based on call and rental costs, but excluding any deposits and installation costs which shall be priced under the preliminary and general items. In addition to the above amount, provision is made in Schedule 1 for a mark-up on any payments made by the Contractor. This mark-up shall be regarded as full compensation for overheads, charges and profits as provided for in Clause 48(2) of the Conditions of Contract.

12.4 PSA12.4 Electrical Connection FeesA prime cost has been included in Schedule 1 for payments to Eskom in respect of electrical connection fees for borehole equipment. In addition to the above-mentioned amount, provision is made in Schedule 1 for a mark-up on the connection fees paid. This mark-up shall be regarded as full compensation for overheads, changes, administration and profits as provided for in Clause 48(2) of the Conditions of Contract.

12.5 PSA12.5 Specialist ContractorsA prime cost has been included in Schedule 1 for payments made to Specialist Contractors, which will be executed specialist work. In addition to the above-mentioned amount provision is made in Schedule 1 for a mark-up on the Specialist Contractors paid. This mark-up shall be regarded as full compensation for overheads, charges, administration and profits as provided for in Clause 48(2) of the Conditions of Contract.

12.6 PSA12.6 Nominated Sub-ContractorsProvision is made in Schedule 1 for a mark-up on nominated Sub-Contractors in respect of overheads, charges and profit for assisting, training, co-ordinating and supervision of a nominated Emerging Sub-Contractor, who is to be employed under this programme.

12.7 PSA12.7 Labour Desk OfficersA prime cost item has been included in Schedule 1 for the compensation of the Labour Desk Officers. Payments will be made to the Labour Desk Officers on instruction of the Engineer, in writing. In addition to the abovementioned amount, provision is made in Schedule 1 for a mark-up on the payments made to Labour Desk Officers. This mark-up shall be regarded as a full compensation for overheads, charges and profits as provided for Clause 48(2) of the Conditions of Contract.

12.8 PSA12.8 Pre-paid Water Meter UnitsA prime cost has been included in Part 1 for the supply and deliver of pre-paid water meter units. In addition to the abovementioned amount, provision is made in Schedule 1 for a mark-up for paying for the supply of pre-paid water meters. This mark-up shall be regarded as full compensation for overheads, charges and profits provided for Clause 48(2) of the Conditions of Contract.

12.9 PSA12.9 Radio CommunicationA prime cost has been included in Part 1 for the purchase of two-way radios. Installation of the radios in the successful tenderer’s vehicles will be co-ordinated by the Engineer. In addition to the abovementioned amount, provision is made in Schedule 1 for a mark-up on the purchases and installation of the two-way radios. This mark-up shall be regarded as full compensation for overheads, charges and profits provided for Clause 48(2) of the Conditions of Contract.

13 PSA13 ADJUSTMENT OF PRELIMINARY AND GENERAL ITEMS DUE TO RAIN Should the period for completion be automatically extended due to abnormal weather conditions occurring during execution of the Contract as provided for in the Project Specifications, no adjustment to the total for time-related preliminary and general items will be applicable.

14 PSA14 ADJUSTMENT OF PRELIMINARY AND GENERAL TIME-RELATED ITEMS An approved extension of time will qualify the Contractor to receive additional payment for each relevant time related item at a unit rate based on the sum originally tendered for such item, and which shall be fair and reasonable as contemplated in Clause 40 of the General Conditions of Contract.



15 PSA15 ADJUSTMENT OF PRELIMINARY AND GENERAL ITEMS DUE TO INTERRUPTION IN WORK SCHEDULEShould the period of completion be automatically extended in terms of clause PS5.3 as a result of interruption in the contractors work schedule during execution of the contract, no adjustment to the total for time related preliminary and general items would be applicable. Time related preliminary and general items will be paid only if the Contractor has been established on site during a specific period. Therefore, if the Contractor was not established on site, time related P & G-items will not be paid.

If he was on site for only a limited period during a specific month, time related P&G items are to be paid in full for such a month.

16 PSA16 PAYMENT FOR ESTABLISHMENT OF FACILITIES AND ADDITIONAL ESTABLISHMENT OF FACILITIES ON THE CONTRACTS

16.1 PSA16.1 Amend clause 8.3.2 of SABS 1200 A as follows :Change the heading of clause 8.3.2 to :

"First establishment of facilities on site at the depot or contractors main camp."

Item 8.3.2.1. to 8.3.3 as per the SABS 1200 A : No change

The purpose of this payment item is to remunerate the contractor for all establishment costs at the single main depot/camp where the contractor will establish for the duration of the contract. (Only payable at first establishment. For re-establishment, see Clause PSA 16.4).

Important Note :The contractor will also not be paid any additional establishment costs in each district or inter-borehole movements, when the contractor moves into a region or district to re-do defective or maintenance work in that region.

16.2 PSA16.2 Amend clause 8.3.4 of SABS 1200A as follows :Change the heading of clause 8.3.4 to :

"Remove Contractor's site establishment on completion of contract or interim de-establishment (on instruction of the Engineer)."

The purpose of this clause is to remunerate the contractor for all de-establishment costs (interim or at the end of the contract) and shall provide for the making good and restoring of the site to the satisfaction of the Engineer Unit : Sum

16.3 PSA16.3 Include the following Clause 8.3.6 :Village Movement / Site Movement

All movements ordered by the Engineer, shall be priced as follow :

Distances measured in one direction only along the shortest, most feasible route:

(a) This rate to make provision for fixed charge items relating to movement from the Contractor's base camp to an equipping site where construction is in progress, and shall include all actions necessary to temporarily establish at the required village, all travelling costs to and from that borehole, as well as re-establishment at the borehole where construction had been interrupted or completed.

This rate to apply to the equipping of boreholes, construction of rudimentary networks, secondary networks and/or house connections 10 km or less in distance from where construction is in progress No(Only a one-off-payment per site).

(b) This rate to be an extra-over rate above PSA16.3(a) activities in excess of 10 km from where programmed construction is in progress km

Site movement will be paid only once. For example, if a reticulation is to be installed in a village, a "site movement" will be paid only once, irrespective if such installation could be spread over a long period.



16.4 PSA16.4 Include the following clause 8.3.6"Additional establishment cost payable to the Contractor on re-establishment.”

This item must cover all costs incurred by the Contractor when re-establishing after a previous de-establishment on instruction of the Engineer. Such re-establishment cost must no be confused with the initial establishment costs Unit : Sum.



PSAB ENGINEER'S OFFICE

1 PSAB1 NAME BOARDS (CLAUSE 3.1)Two name boards conforming to the standard requirements of the South African Association of Consulting Engineers and as shown on drawing _____________________ must be provided and erected at points to be designated by the Engineer during the duration of the Contract for this purpose.

2 PSAB2 OFFICE BUILDING (CLAUSE 3.2)One office facility shall be provided and furnished for the Engineer’s Representative and maintained for the duration of the contract. The office facility shall be furnished as per SABS 1200 AB, save as amended below:

The office shall consist of a room with a floor area of at least 20 m² and a ceiling height of at least 2.5 m.

All offices and other facilities shall be weatherproof with wooden boarded floors that are at least 150 mm above the ground, shall be provided with ceilings, with a door with a secure lock, and each with two opening windows of glazed area at least 3 m². Each facility shall be well ventilated and shall be so insulated as to provide comfortable working conditions.

The internal finishing of the office shall include:

(a) one trestle table, 2 m long x 1 m wide x 0,9 m high, with a smooth top;

(b) one desk having a top of size at least 1,5 m x 0,9 m and at least one lockable drawer;

(c) one high stool;

(d) four chairs;

(e) one white board mounted to the wall and a set of white board markers;

(f) a lockable upright steel cabinet with three shelves and a steel filing cabinet with four drawers;

(g) racks for hanging contract drawings;

(h) an acceptable blind on each window;

(i) a wash hand basin;

(j) one 15 amp plug point;

(k) suitable electrical lighting;

(l) an acceptable model air conditioner, capable of maintaining the room temperature between 16º C and 22º C; and

(m) provision, as detailed in the Project Specifications, for a toilet for the exclusive use of the Engineer.

Upon completion of the Works, ownership of all buildings, furnishings and equipment specified herein shall revert to the Contractor who shall remove same from site. The employer may request the contractor not to remove the buildings and furnishings if on the property of ________________ Municipality..

3 PSAB3 TELEPHONE (CLAUSE 5.4)One cellular telephone of an approved type shall be provided for the exclusive use of the Engineer’s Representative for the duration of the Contract.

The Contractor shall make all arrangements necessary for the provision of the cell phone, and shall pay all necessary deposits and installation costs that may be applicable. A prime cost item has been allowed in Schedule 1 to cover all call and rental costs that are associated with the provision of this facility for the Engineer’s Representative.



4 PSAB4 SURVEY ASSISTANTS (CLAUSE 5.5)One suitably educated Survey Assistant shall be made available for the sole use of the Engineer's Representative for the duration of the Contract. The assistant may also be required to fulfil the function of Community Liaison Officer during the Contract should the Engineer consider this arrangement to be in the interests of the Employer. The Survey Assistants may therefore have to be appointed from the local communities.

5 PSAB5 SURVEY EQUIPMENT The survey equipment listed below shall be made available and be maintained in good condition for the exclusive use of the Engineer or his Representative for the duration of the Contract. Payment will be made as provided for in the Time Related Items included in Schedule 1.

(a) Automatic surveyor's level complete with tripod and leather carry

case such as Zeiss N1-2 or equivalent 1 No

(b) 20-second tachometer with optical plum bob complete with tripod

and leather carry case such as Sokkisha TM20C or equivalent. 1 No.

(c) Nylon-coated steel surveyor's tape 100m long and 10mm wide 1 No.

(d) 5m long steel tape 1 No.

(e) 5m long three-piece telescopic survey staves (metric double-face)

complete with angle bracket level 1 No

(f) 2kg hammer with rubber handle 1 No.

(g) Steel pegs, 300mm long and 12mm dia 120 No.

(h) Measuring wheel 1 No

(i) Tripod holders for ranging rods (heavy duty) 2 No.

(j) Optical square (Sokkisha or Wild), complete with

(k) telescopic aluminium rod and bubble 1 No.

(l) 100m long 50 kg strength fish line 1 No.

(m) One metre long spirit level 1 No.

(n) DCP 1 No.

(o) Dip meter (water level meter) 1 No.

6 PSAB6 CARPORTS The Contractor shall provide and maintain two carports with waterproof roofing for the duration of the Contract. The floor shall consist of crushed aggregate to alleviate dusty and muddy conditions.

7 PSAB7 LABORATORY No laboratory buildings or fittings are required by the Engineer. The Engineer will arrange separately with a commercial laboratory or designate specialists to carry out all acceptance testing. See clause PSA12 for detail of the Prime Cost item provided for this purpose. The Contractor shall remain responsible for carrying out the process control testing that is required by the Standardised, Particular and Project Specifications.

The Contractor shall supply the following equipment and maintain same for the duration of the Contract:

(a) Six concrete cube moulds, 150mm nominal size.



PSC SITE CLEARANCE

1 PSC1 DISPOSAL OF MATERIAL (SUB-CLAUSES 3.1 AND 8.2.1)Materials arising from clearing and grubbing shall be disposed of as may be ordered by the Engineer. Trees and stumps necessarily removed shall not be burnt unless authorised by the Engineer, but shall be cut and stacked at areas designated by the Engineer.

2 PSC2 AREAS TO BE CLEARED AND GRUBBED (CLAUSE 5.1)The areas to be cleared and grubbed will be indicated by the Engineer. Should a portion or the whole of the site have been cleared and grubbed by nature or by others prior to the start of construction, then no clearing and grubbing will be ordered or payment made with respect to the applicable portion of the site.

3 PSC3 PRESERVATION OF TREES AND SHRUBS (SUB-CLAUSE 5.2.3)The penalty in respect of every individual tree and shrub designated as a tree or shrub to be preserved that is damaged or removed unnecessarily by the Contractor, shall be R 1 000. Trees that fall within areas upon which the Works are to be constructed or within areas that the Contractor must occupy for the proper construction of the Works will not be designated for preservation.

4 PSC4 OVERHAUL (NEW SUB-CLAUSE)No overhaul will be payable on the disposal of material arising from clearing and grubbing.



PSDA EARTHWORKS (SMALL WORKS)

1 PSDA1 FREEHAUL AND OVERHAUL (CLAUSE 5.2.5)The freehaul distance for all material to be imported or spoiled shall be considered as 1km for mechanically driven vehicles and a 200m for wheelbarrows from the outer ring of houses which defines the village, or as agreed upon in the specified case of “wheelbarrow haul”.

2 PSDA2 BORROW PITS (CLAUSE 5.2.2.2)Borrow materials shall be obtained from designated borrow pits approved by the Engineer.

3 PSDA3 DISPOSAL OF SURPLUS MATERIALAll surplus or unsuitable materials arising from excavation shall be spoiled and spread where indicated by the Engineer. The Engineer shall determine the point of spoil and spreading depending on the nature of the material.

4 PSDA4 HAUL AND SPOIL ROADSThe contractor shall be responsible for the provision of all haul and spoil roads that he may require for the construction of the works and that the Engineer may approve. No additional payment will be made in this regard.



PSDB EARTHWORKS (PIPE TRENCHES)

1 PSDB1 MATERIALS (CLAUSE 3)1.1 PSDB1.1 Methods of classifying (Clause 3.1)

Replace the contents of this sub-clause with the following :

PSDB1.1.1 Save and except in respect of those portions of the Works which are specified in Portion 1 of the Project Specifications to be executed utilising Labour Intensive Construction Methods, the Contractor may use any method he chooses to excavate any class material, but his chosen method of excavation shall not determine the classification of the excavation. The Engineer will determine the classification of the materials.

PSDB1.1.2 The classification will be based on the specified construction methods, inspection of the material to be excavated and on the criteria given in PSDB1.2 below, as applicable.

PSDB1.1.3 Where the utilisation of Labour Intensive Construction Methods is specified in Portion 1 of the Project Specification for certain classes of excavation only, the material for those classes of material to be excavated using Labour Intensive Construction Methods will be classified in terms of PSDB1.2.2 and for those classes of excavation which are not required to be executed by Labour Intensive methods, classification will be based on the criteria given in PSDB1.2.1

(i.e. Where it is specified that the excavation of soft materials only shall be executed using Labour Intensive Construction Methods, the classification of the soft material to be so excavated will be based on the criteria given in PSDB1.2.2(a) and the Contractor will be required to excavate all such soft material by Labour Intensive methods. However, when the material is classified in terms of PSDB1.2.2(b) to be "intermediate" and is thus no longer required to be excavated by Labour Intensive methods, the classification of the material not required to be excavated using Labour Intensive methods will be based on the criteria given in PSDB1.2.1 (thus a material classified as "intermediate" in terms of PSDB1.2.2(b) may in terms of PSDB1.2.1 be deemed to be "soft" and will be measured and paid as such under such circumstances.).

PSDB1.1.4 All tools and equipment referred to in PSDB1.2 shall be in good mechanical and operational condition.

PSDB1.1.5 "Efficiently" as used in PSDB1.2.2(a) - (c) shall be taken to mean "in a manner that can be reasonably expected of a Contractor, having regard to the production achieved".

PSDB1.1.6 The classification of material other than "soft excavatability" shall be agreed upon before excavation may commence.

PSDB1.1.7 The Contractor shall immediately inform the Engineer if and when the nature of the material being excavated changes to such an extent that a new classification is warranted for further excavation. Failure on the part of the Contractor to advise the Engineer in good time shall entitle the Engineer to reclassify, at his discretion, such excavated material.

1.2 PSDB1.2 Classes of Excavation (Sub-Clause 3.1)Add the following new sub-clause :

PSDB1.2.1 Classes of excavation where Labour Intensive Construction Methods are NOT specifiedThe excavation of material will, in the case of work which is NOT required in terms of the Contract to be executed utilising Labour Intensive Construction Methods, be classified according to SABS 1200D for the purpose of measurement and payment.



Add the following new sub-clause :

PSDB1.2.2 Classes of excavation where Labour Intensive Construction Methods are specifiedThe excavation of material will, in the case of work which is required in terms of the Contract to be executed utilising Labour Intensive Construction Methods, be classified as follows for purposes of measurement and payment:

(a) Soft excavation(i) Class 1Soft excavation Class 1 shall be excavation, including the excavation of boulders not exceeding 0.04 m3, in material that can be excavated and removed from the excavation by an average able bodied labourer or group of such labourers, at a rate of not less than 2.5 m3 per 9.25 hour working day per labourer, using only a suitable shovel. The average volume/task can be accepted as 3.0m³ per labourer per day.

(ii) Class 2Soft excavation Class 2 shall be excavation, including the excavation of boulders not exceeding 0.04 m3, (excluding soft excavation Class 1) in material that can be excavated and removed from the excavation by an average able bodied labourer or group of such labourers, at a rate of not less than 2.0 m3 and not more than 2.0 m3 per 9.25 hour working day per labourer, using only picks, "gwalas", shovels and similar hand tools. The average volume/task can be accepted as 2.5m³ per labourer per day.

(iii) Class 3Soft excavation Class 3 shall be excavation, including the excavation of boulders not exceeding 0.04m³ (excluding soft excavation Class 2) in material that can be excavated and removed from the excavation by an average able bodied labourer or group of such labourers, at a rate of not less than 1m³ and not more than 2.5m³ per 9.25hour working day per labourer, using only picks, “gwalas”, shovels and similar hand tools. The average volume/task can be accepted as 2.0m³ per labourer per day.

(b) Intermediate excavationIntermediate excavation shall be excavation (excluding soft excavation) in material which requires ripping or loosening by mechanical means prior to removal of the loosened material utilising the methods as described in PSDB1.2.2(a).

(c) Hard rock excavationHard rock excavation shall be excavation of boulders not yet decomposed exceeding 0.04 m3 and excavation in solid rock occurring in bulk or in banks or ledges, which requires loosening or breaking up by drilling, wedging, splitting or blasting or by other approved quarrying methods, prior to being excavated and removed from the excavation utilising only picks, "gwalas", shovels and similar hand tools.

(NOTE : Such excavation generally includes materials such as formations of unweathered rock that can be removed only after blasting.)

The Engineer will instruct for which portions of the Works, based on the evidence provided from trial holes excavated at approximately 200 m spacing by the Contractor for this purpose, will be executed utilising Labour Intensive Construction methods. The Trial hole shall be excavated to trench depth utilising a Cat 416 Backactor or similar.



2 PSDB2 PLANT2.1 PSDB2.1 Excavation Equipment (Sub-Clause 4.1)

Replace the contents of this sub-clause with the following:

(a) To the extent that the provisions of the Specifications permit the use of mechanical plant and equipment in the excavation of trenches, the Contractor may use trenching plant that will excavate to a width such that the side allowance does not exceed the appropriate value specified in 5.2 by more than 50%, except that where in terms of the Project Specifications or of the Drawings, the base width of a trench for a pipeline or a portion of a pipeline is not to exceed the minimum base width or a stated value, the Contractor may use trenching plant which will produce the required trench width or he shall accept the responsibility for all costs incurred in strengthening the relevant pipeline.

2.2 PSDB2.2 Compaction Equipment (Sub-clause 4.2)Replace the contents of this sub-clause with the following:

2.2.1 PSDB2.2.1 Machine Compaction(a) Where the compaction is not required to be executed utilising Labour Intensive

Construction methods, or where the utilisation of mechanical compaction plant and equipment is allowable in terms of the contract, the contractor may use mechanical compaction equipment, but he shall select such equipment and operate it in such a manner that the pipeline, duct or cable is not stressed or damaged during the compaction operation.

(b) Machine compaction shall not be used directly above the pipe until sufficient backfill has been placed to ensure that machine compaction loads transmitted to the top of the pipe are no greater than would be imposed by normal traffic loads over a pipeline with cover of 600mm.

2.2.2 PSDB2.2.2 Labour Intensive Construction Methods(a) Unless and to the extent as may be otherwise provided in Portion 1 of the Project

Specifications, the contractor shall, in the compaction of materials by Labour Intensive Construction methods, utilise only hand held manually powered tampers, rollers and similar compacting hand tools and equipment.

(b) Compaction shall be carried out in such a manner as to ensure that the pipeline cable or duct is not stressed or damaged. The material above the pipe shall not be compacted until sufficient backfill has been placed to ensure that the compaction loads transmitted to the top of the pipe are no greater than would be imposed by normal traffic loads over a pipeline with cover of 600mm.

3 PSDB3 ACCOMMODATION OF TRAFFIC (SUB-CLAUSE 5.1.3)Traffic must be accommodated along the lengths of the pump line which falls within or adjacent to any road reserve.

The Contractor shall tender a lump sum per village in Schedule 3 for accommodating traffic during the duration of the Contract, which sum shall cover all his obligations in this regard, including but not limited to temporary barricades; the erection and re-erection of existing and/or temporary traffic signs; lights and flagmen for the guarding and protection of the Works; and for making all necessary arrangements with the applicable traffic authorities. Payment shall be made monthly pro-rata to the overall progress of the Works.

If crossing of the road in half widths is allowed, the road shall remain continuously open to traffic. The Contractor shall make provision to ensure the safe passage of traffic using this public road whilst installing the pipe through the road, and to ensure that any disruption to the public is kept to a minimum providing safe detours when so instructed by the Engineer. Each half width shall be completed in one day. No open trenches will be allowed over night. If the half width is not completed by 16:00 the trench shall be backfilled, in which case the Contractor shall re-excavate the trench at a later stage to complete the work at his own expense. All detours and signs shall be erected and maintained in accordance with the latest issue of Road Signs Note 13 as issued by CSRA and CUTA.



4 PSDB4 EXISTING SERVICES (SUB-CLAUSES 5.1.4)Where any existing service occurs within the specified trench excavation, and the presence of such service is known before being uncovered, then the protection of the service will be scheduled and measured as provided for in Clause 8.3.5 of 1200DB. Only known services (as defined in Clause 5.4 of 1200A) shall be measured for payment.

Where an unknown existing service is damaged during construction, and the Engineer orders that the Contractor should undertake the repair of such service, then such repair will either be measured and paid as day works or alternatively as a contractual variation in terms of Clause 40 of the General Conditions of Contract.

No construction activity which may affect the integrity of telephone or electrical poles or stays may be carried out without the prior written approval of the Engineer, which approval shall only be given subject to the acceptance of a modus operandi that will ensure the integrity of such structures during construction.

5 PSDB5 TRENCH WIDTHS (SUB-CLAUSES 4.1 AND 5.2)Trenches in general shall not exceed the widths laid down in Sub-Clause 8.2.3. If trenches exceed the specified width the Contractor shall be liable for the cost of any thicker pipes or more expensive bedding which may be required as a result of the additional trench width.

6 PSDB6 MINIMUM BASE WIDTH (SUBCLAUSE 5.2)Side allowance for pipes of diameter 125 mm or more (Sub-clauses 5.2 and 8.2.3):

The minimum base width of trench for pipes of external diameter less than 125 mm but larger than 70 mm lay at a depth of 1,5 m or less shall be 550 mm.

The minimum base width of trenches for pipes of external diameter less than 70 mm laid at a depth of 1,0 m or less shall be 400 mm.

The minimum base width of trenches where labour-based excavation is concerned, shall be at least 150 mm on either side of the pipe's outer diameter to allow proper compaction of backfilling materials.

7 PSDB7 TRENCH BOTTOMS (SUB-CLAUSE 5.5)Replace the first paragraph of this sub-clause "Material that .......... compacted as directed" with the following :-

Where a firm foundation cannot be obtained at the grade indicated due to soft or unsuitable material, the Engineer may instruct the Contractor to remove such unsuitable material and to backfill the excess depth with approved selected material or concrete, as directed by the Engineer in each particular case, at the cost of the Employer. Backfill other than concrete, shall be placed in layers of 100mm uncompacted thickness, each layer thoroughly compacted to the entire satisfaction of the Engineer, to provide adequate support for the pipe bedding to be placed on top of it.

Should the Contractor remove more ground than is required to secure the proper grade of the pipeline, the Contractor must, at his own cost, backfill the excess excavation with approved selected material or concrete, as directed by the Engineer in each particular case.

8 PSDB8 DISPOSAL OF EXCAVATED MATERIAL (SUB-CLAUSES 5.6.3 AND 5.6.4)All surplus or unsuitable materials arising from excavation shall be spoiled and spread within or adjacent to the Site of the Works or when ordered by the Engineer be spoilt at a spoil site established by Contractor.

9 PSDB9 FREEHAUL AND OVERHAUL (SUB-CLAUSE 5.6.8)See clause PSDA 1.



10 PSDB10 AREAS SUBJECTED TO TRAFFIC LOADS (CLAUSE 5.7.2)The requirements of Clause 5.7.2 shall apply to all pipes crossing roads and streets whether the roads and streets are to be constructed under this Contract or to be constructed at some time in the future. Compaction of pipe trenches running parallel to the roadway shall be considered areas subject to traffic loads where instructed by the Engineer.

11 PSDB11 REINSTATEMENT OF EXISTING BITUMEN SURFACED ROADS (CLAUSE 3.6 AND 5.9.4)Pipe trenches through the existing bitumen surfaced roads shall be reinstated with a 150 mm upper selected subgrade layer compacted to 93 % mod AASHTO density, followed by a 150 mm sub base layer compacted to 95 % mod AASHTO density and a 150 mm graded crushed stone base compacted to 98 % of mod AASHTO density. The road shall be provided with a 25 mm thick asphalt seal.

The upper selected subgrade layer shall have a CBR of at least 15, a grading modulus of at least 0.75 and a maximum PI of 12. The sub base shall conform to SABS 1200 ME and the base to SABS 1200 MF.

12 PSDB12 MEASUREMENT AND PAYMENT (CLAUSE 8.3.2)12.1 PSDB12.1 Basic Principles (Clause 8.1)

Insert the following heading for Clause 8.1.2 :

"Trenches not required to be excavated by Labour Intensive Construction methods"

Add the following new sub-clause : (Clause 8.1.5)

"Works required to be executed utilising Labour Intensive Construction methods

Separate items will be provided for works covered by this Specification which are required to be executed by Labour Intensive Construction methods and for works for which the utilisation of such methods is not required.

The trench depth increments referred to in Clause 8.1.2(b) and the trench depth increment for 8.1.5 shall be :

(a) up to 1.5 m in depth

Trenches shall be measured volumetrically, irrespective of length.

Measurement and payment for works covered by this Specification and required to be executed utilising Labour Intensive Construction (LIC) methods shall, unless otherwise stated, be mutatis mutandis in accordance with the provisions of SABA 1200DB as amended in this Project Specification.

12.2 PSDB12.2 Excavation (Sub-Clause 8.3.2)Excavate, in all materials for trenches 0 – 1.0 m wide, backfill, compact and dispose of surplus material utilising Labour Intensive Construction methods up to

(a) 1.5 m in depth m³

Extra over the above for

(1) Soft excavation Class 2 (refer PSDB1.2.2) m³

(2) Soft excavation Class 3 (refer PSDB1.2.2) m³

(3) Intermediate excavation (refer PSDB1.2.2) m³

(4) Hard rock excavation (refer PSDB1.2.2) m³

Excavate, in all materials for trenches 0 – 1.0 m wide, backfill, compact and dispose of surplus material utilising Conventional Construction methods

(a) up to 1.5 m in depth

Extra over the above for :



(1) Intermediate material m³

(2) Hard rock excavation m³

(3) Backfill and compact by means of Labour Intensive

Construction methods m³

(4) Disposal of surplus material by means of Labour

Intensive Construction methods within 20 m from

the source of spoil material using wheel barrows m³

Backfill should be in 200 mm thick layers compacted to 90% Mod AASHTO.

Payment for the excavation and backfilling of trenches shall be made at the tendered rates and at the following stages of the construction:

(i) upon completion and approval of the trench bottom, prior to bedding : 40 %

(ii) upon completion and approval of top of selected backfill: 70% (cumulative)

(iii) upon completion and approval of the mainfill: remaining 30 %.

12.3 PSDB12.3 Excavation of Trial HolesExcavation of trial holes as described in PSDB1.2.2 will be measured by number and shall include for backfilling after inspection.

12.4 PSDB12.4 Stone BeddingStone bedding will be measured per cubic metre under the appropriate item in SABS 1200LB. Type A bedding (crushed stone wrapped in a geotextile blanket) shall be measured per linear metre along the centreline of the trench. The provision, operation and removal of (a) de-watering pump where authorised by the Engineer will be measured as day works under the appropriate item in Schedule 2.



PSDK GABIONS AND PITCHING

1 PSDK1 PITCHING (SUB-CLAUSE 3.2.1.20Type of pitching shall be Ordinary Stone Pitching, unless otherwise instructed by the Engineer.

PSGA CONCRETE (SMALL WORKS)

1 PSGA1 CEMENT (SUB-CLAUSE 3.2.1)Only the use of Ordinary Portland Cement to SABS 471 will be permitted.

2 PSGA2 CONCRETE FINISHES (SUB-CLAUSE 4.4.2)Concrete against which earth will be backfilled shall be classified as rough. All exposed concrete surfaces shall be classified as smooth. Degree of accuracy II shall prevail.

3 PSGA3 STRENGTH CONCRETE (SUB-CLAUSE 5.4.1.5)AThe grade of concrete and nominal size of aggregate shall be as specified on the Drawings. The successful tenderer will be required to submit samples of the coarse and fine aggregate, which he proposes using, to the Engineer’s Representative(s) for tests regarding the suitability of such aggregates. The Contractor shall prepare trail mixes. These mixes shall be designed for vibration. All data and reports prepared by the Contractor shall be submitted to the Engineer for information and approval prior to the commencement of concreting operations.

4 PSGA4 ANCHOR AND THRUST BLOCKS At tees, bends, terminal valves, end caps, and where otherwise directed, anchor/thrust blocks shall be constructed to dimensions ordered, shown on the Drawings or agreed to by the Engineer. Unless otherwise specified, anchor/thrust blocks and pedestals shall be constructed of prescribed mix 15/37.5 concrete.

The concrete shall be well punned round the pipe and, if in trenches, against the undisturbed faces and bottom of the trench. Backfilling behind or under thrust faces will not be permitted. Excess excavation shall be replaced with the prescribed mix concrete given above for anchor/thrust blocks at the Contractor’s expense, unless an item is scheduled to cover payment of over break. Care shall be taken to leave the joints accessible. No anchor/thrust blocks and pedestals shall be concreted until the approval of the Engineer has been obtained.

Anchor and thrust blocks will be measured by volume of concrete; the rate tendered shall include for any form work required constructing the block.

Should the Contractor offer an alternative method of coupling involving flexible joints, he shall design suitable thrust and anchor blocks in order to prevent movement of the pipeline under operating and test conditions. The working and test pressure to be used by the Contractor for the calculation of anchor and thrust blocks shall be in accordance with the design information that is issued together with the tender. The earth bearing pressure to be used for the calculation of anchor and thrust blocks shall be based on field tests. The factor of safety to be used in calculating the above shall be 2.5.

5 PSGA5 GROUTING TO MACHINE AND STRUCTURAL BED PLATES (SUB-CLAUSE 5.5.13)

5.1 PSGA5.1 Materials(a) Water. Water for grout shall comply with the requirements given in sub-clause 3.3 of

SABS 1200G.

(b) Aggregates. Notwithstanding the requirements of Sub-clause 3.4.1 of SABS 1200G, the grading of fine aggregate (sand) and coarse aggregate (stone or pea gravel) shall conform to the gradings given in Tables 1 and 2, respectively, below.

(c) Cement. Cement shall be ordinary Portland cement complying with SABS 471.



(d) Admixtures. Admixtures shall comply with the requirements of Sub-clause 3.5 of SABS 1200 G, and shall have a proven record of satisfactory performance under conditions en-countered in the North West Province.

Proprietary Grouting Materials. Unless otherwise approved by the Engineer, Proprietary Grouting Materials shall be obtained ready mixed in sealed pockets as supplied by the manufacturers.

Table 1 - Sand Table 2 - Stone or Pea Gravel

Test sieve

Nominal

aperture

size, mm

% Passing

(by mass)

Test sieve

aperture

size, mm

% Passing

(by mass)

9.5

4.75

1.18

0.3

0.15

100

95-100

45-65

5-15

0-05

9.5

4.74

2.36

100

95-100

0-5

* Portland cement (ordinary, rapid-hardening, and sulphate-resisting).

5.2 PSGA5.2 Preparation and Procedures(a) Before a machine or structural bed plate is placed on the concrete the following shall be

carried out :

(i) All defective concrete, laitance, dirt, oil, grease and loose material shall be removed from the concrete foundation by bush-hammering, chipping, or other means until sound clean concrete is obtained. The surface of the foundation shall be scabbled, but shall not be so rough as to interfere with proper placing of the grout. All foundation bolt sleeves shall be cut out, or cut off flush if the sleeves cannot be removed. The top of the foundation shall be reshaped if necessary.

(ii) The underside of each steel base, particularly in the bearing areas, shall be cleaned and any burrs and ragged edges removed before the base is placed in its final location.

(iii) All holding-down bolt sleeves shall be thoroughly cleaned of any materials that may prevent the grout from flowing freely to the bottom of the bolt sockets.

(b) The base shall be properly aligned and levelled and shall be maintained in that position during grouting.

After the machine or structural bed plate has been placed the following precautions shall be observed:

(i) Shimming shall be kept to a minimum. Steel plates shall be used for packing and shall be ground to the required thickness, where necessary.

(ii) Before grouting is started all loose dirt, oil, grease and other foreign matter on the surface of the foundation, the underside of bed plates, and in the bolt holes shall be removed by means of compressed air or other approved means. The surface of the foundation slab shall be thoroughly saturated with clean water and free water shall be removed from the surface and the bolt holes just before the grout is placed.



(iii) The grouting shall not be carried out until the alignment of all units to be grouted has been checked and approved by the Engineer.

Special care shall be taken with grouting in hot or cold weather to ensure proper setting and gain of strength and, in the case of Proprietary Grouting Materials, by having ice or hot water available, as the case may be, in accordance with the instructions of the manufacturer. Enclosures shall be provided for the grout such that, until it has set, its temperature will be in the range 15-27ºC.

(i) Shields to protect the grout from the sun and from hot winds shall be provided by the Contractor when so ordered.

5.3 PSGA5.3 Form workForm work for grouting shall comply with the applicable requirements of Sub-clause 5.2 of SABS 1200 G. Forms shall be caulked where necessary. Adequate clearance between forms and bed plates shall be provided to enable the grout to be worked into place.

5.4 PSGA5.4 Mixing (All free-flowing grouts except epoxy grouts)The grout shall be mixed to a homogenous uniform mixture and delivered ready for placing at a temperature between 15ºC. and 25ºC.

The materials and water shall be mixed in a mortar mixer for at least 3 min. or, in the case of small jobs only, shall be thoroughly mixed by hand, the entire mass being turned over enough times to ensure even distribution of its components.

The mixing shall be done as close as possible to the place(s) where the grout is placed. No more grout shall be mixed at any one time than can be placed in a period of 20 minutes. After the grout has been mixed it shall not be retempered by the addition of water.

5.5 PSGA5.5 Grouting (All free-flowing grouts except epoxy grouts)The grout shall be placed quickly and continuously to avoid the undesirable effects of over-working. (These effects are segregation, bleeding and breaking-down of initial set). The method of placement shall be subject to approval. The means of placing the grout shall be such that the grout will completely fill the space to be grouted, will be thoroughly compacted, will be free of air pockets and will have evenly distributed contact over an area in excess of 80 % or, in the case of expanding grout, 95 % of the bearing area of the item to be supported.

Wherever applicable, grout shall be placed from one side only and where this is not practicable, care shall be taken to ensure that any entrapped air is released. After the grout has taken its ini -tial set :

(a) the forms shall be removed;

(b) excess grout shall be so cut away as to leave a smooth and neatly finished job;

except where the grout is intended to provide resistance to side thrust, all edges shall be trimmed at 45ºC to the vertical, from the bottom edge of the bed plate; and

(c) all excess grout on or about the bed plate shall be removed.

Damage to paint work, if any shall be repaired within 24 hours. Packing plates, shims and other levelling devices shall remain in position.

5.6 PSGA5.6 Dry-packed grout (Standard dry sand and cement grout)Dry-packed grout shall have a minimum compressive strength at 28days of 20MPa. The quantity of water after placing shall be kept to a minimum consistent with placing conditions, and the cement, sand and, where applicable, pea gravel proportioned by mass shall be as follows:

(a) Where the clearance between bed plate and foundation is 25 mm or less : 1 part of Portland cement, and 2 parts of sand;

(b) Where the clearance exceeds 25 mm : 1 part of Portland cement, 1 part of sand and 1 part of pea gravel. Dry-packed grout shall be rammed by means of tamping rods against form work placed along three sides of the bed plate.



5.7 PSGA5.7 Non-shrink grout with metallic aggregateThe manufacturer instructions shall be observed when non-shrink grout with metallic aggregate is used.

Where the clearance between the bed plate and the foundation is less than 50 mm a sand-based mix shall be used. Where the clearance exceeds 50 mm the Engineer may order a mix with a base of sand plus pea gravel to be used.

5.8 PSGA5.8 Expanding grout with powdered aluminium additiveThe manufacturer instruction shall be observed when the expanding grout powdered aluminium additive is used.

Where the clearance between the bed plate and the foundation is less than 25 mm, a sand-based mix shall be used. Where the clearance exceeds 25 mm the Engineer may order mix with a base of sand plus pea gravel to be used.

Each batch shall be mixed for at least 6 minutes after the powdered aluminium has been added. Where a ready-mixed grout is used, the powdered aluminium shall be added at the placing site and the batch mixed as specified. Grout shall be placed within 45 minutes after the addition of the powdered aluminium.

The Contractor shall not use powdered aluminium additive when the ambient temperature is below 5ºC.

5.9 PSGA5.9 Epoxy grout (epoxy mortar type only)The manufacturer’s instructions shall be observed when an epoxy grout is used.



PSHA STRUCTURAL STEEL (SMALL WORKS)

1 PSHA1 GRADE OF STEEL (SUB-CLAUSE 3.1.1)Structural cold-formed steelwork to be to Grade 43A or 43B with the minimum properties as tabled in Table B-2 of SABS 0162-1982.

Structural hot-rolled steelwork to be to Grade 300W with the minimum properties as tabled in "Steel design date: No. 6" of the South African Rolled Steel Producers Co-ordinating Council and the South African Institute of Steel Construction.

2 PSHA2 SHOP DRAWINGS (SUB-CLAUSE 5.1.2)The contractor is to provide shop details.

Steelwork generally of welded construction with site connections bolted:

All holes 18 dia for M16 bolts

All gussets ex 8 mm U.O.S.

All welds, 6 mm fillet

The Engineer must be notified, (at least 72 hours before hand) of the completion of the fabricated steelwork at the contractors workshops, to enable him to make an inspection if he so desires. The fabricated steelwork, thus to be inspected shall be in its prepared specified state immediately before the application of prime coat painting.

3 PSHA3 WELDING (SUB-CLAUSE 5.3.4)Delete this clause in its entirety and add the following clause:

Welding shall be done in accordance with the relevant requirements of SABS 0162 BS5135 and AWS.D.1/18 (American Welding Society).

Welding shall be Grade B welding.

The qualification of welders shall be in accordance with the relevant clauses of the above standards, and specifically SABS 044 Part III and shall be Grade I welders. Grade 2 welders shall be permitted only with the Engineer's approval.

The Contractor shall provide evidence, acceptable to the Engineer, that welding procedures and welders have been tested in accordance with the requirements of AWS D1.1.

4 PSHA4 PROTECTIVE TREATMENT (SUB-CLAUSE 5.3.9)4.1 PSHA4.1 Shop Painting

(a) Steelwork after fabrication shall be wire brushed to a finish equal to or better than Grade St3 or SIS 05 59 00.

(b) Within 4 h after the completion of wire brushing, 2 coats of an approved primer such as a Type II. Grade 2 red lead, on a zinc chromate or red oxide (see Subclause 3.7 of SABS 1200 H) shall be applied to provide a dry film of thickness between 25 and 30 micron. Except that red lead shall not be sprayed, a primer may be applied by means of brush, roller, or spray.

4.2 PSHA4.2 Painting after erection(a) After the erection of steelwork, all areas where the primer coat has been damaged shall

be touched up as specified in PSH2.1.

(b) An intermediate coat of an approved general-purpose alkyd undercoat shall then be applied to provide a dry film of thickness between 25 and 30 micron. The paint may be applied by means of brush, roller, or airless or conventional spray.

(c) Provided that the undercoat is touch-dry within 2 hours, the finishing coat may be applied the following day. One coat of an approved alkyd enamel, the non-volatile vehicle of which contains at least 24 % phthalic anhydride, shall be applied to provide a dry film of thickness between 25 and 30 micron.



(d) The total dry film thickness of the paint and primer coats shall be between 70 and 100 micron.



PSL MEDIUM PRESSURE PIPELINES

1 PSL1 WATER SUPPLY MAINSThe pipes to be used for pressure mains are as follows:

1. 63 mm and larger - Unplasticised Poly vinyl Chloride (uPVC)

Fibre Cement (FC)

2. 50 mm and smaller - High density Polyethylene Type IV

Couplings for uPVC pipes to be watertight and be able to withstand the relevant test pressures, unless otherwise indicated. uPVC pipe fittings shall be cast iron or aluminium.

Couplings for HDPE pipe fittings shall be compression fittings only.

2 PSL2 GRADE OF STEEL FOR STEEL PIPESAll steel piping shall be made electric welded low carbon steel pipes in accordance with the requirements of SABS 719-1971 and BS 534-1966. Where non standard specials have been detailed on the drawings, such dimensions shall be adhered to. All flanged pipes and fittings shall have flanges as specified, and shall be supplied complete with all packings, nuts, bolts and washers. Steel piping shall be made from Grade A steel. The minimum wall thickness for steel pipes of nominal outside diameter exceeding 500 mm shall be 6 mm. Viking Johnson couplings complete with all seals, bolts, nuts, etc. shall be used where detailed. Where new installations couple up with existing, the Contractor shall ascertain what the flange drillings are the same as all existing fittings prior to any placement or order and shall confirm this information with the Engineer.

3 PSL3 PIPE COUPLINGS FOR OTHER PIPES (ADDITIONAL TO CLAUSE 3.7)PSL3.1 Polyvinyl Chloride pipes and fittings shall be supplied with factory fitted 'Z type' couplings.

Solvent welded joints will be permitted for pipes of diameter smaller than 50 mm. PVC pipe fittings shall be Aluminium or Cast Iron.

PSL3.2 Polyethylene pipes shall be supplied suitable for, and with compression or insert type fittings as scheduled. No screwed fitting shall be used without written approval. Polyethylene pipe fittings shall be Nylon.

4 PSL4 FIBRE-CEMENT PIPE FITTINGS (CLAUSE 3.8.1)Fibre Cement pipe fittings shall be Cast Iron or Steel. Where steel fittings are provided, they shall be adequately reinforced against ovalness (over the entire circumstances and width corresponding to half the width of the approximate standard AC coupling) by means of welded collars of minimum thickness 12mm.

5 PSL5 VALVES (CLAUSE 3.10)5.1 PSL5.1 Gate Valves

(a) General

All gate valves in compliance with SABS 664, waterworks application, clockwise closing, with a non-rising spindle and plain thrust collar. Valves and flanges (if any) to be to the class specified.

Valves to be operated by either hand wheel, cap top and tee-key or extended spindle and hand wheel/tee-key. Operation to be specified.

Valves to be flanged or spigot ended as specified.

Note :

"As specified" will mean as described in the schedule of quantities. In the event of no description in the schedule the following will prevail :

Valves to be at least class 10 with a standard hand wheel operator and valves to be flanged.

(b) Gate valves of 300mm diameter or smallerdocument.doc/dt/ 29/06/2001


All gate valves falling into this category to be fitted with resilient seal, rubber lined gates similar to "Elypso compression-sealing valves".

5.2 PSL5.2 Butterfly valvesAll Butterfly valves to be of the 'Boving' (or similar approved) resilient sealing type and shall be supplied complete with geared operator and hand wheel. All geared operators shall have horizontal spindles.

5.3 PSL5.3 Valve spindlesAll extended valve spindles shall be supplied at both ends with cast iron tops for valve key operation. The spindle shall be fitted into the valve box with a bearing for easy operation. The lengths of extended spindles are to suit the dimensions of their installation positions, all spindles supplied supported at 4m max. intervals.

6 PSL6 STEEL FLANGES (CLAUSE 3.8.3)PSL6.1 All flanges to be drilled to SABS 1123 table 15 unless otherwise specified.

PSL6.2 All valve and hydrant tee flanges to be drilled as follows :

AIR VALVE SIZE(inlet dia. mm)

FLANGEOD (mm)

BOLTSno. x dia.

PCD

50 203 4 x M16 165

80, 100 and 150 SABS 1123 Table 15

Flange holes to be drilled to allow exact alignment vertically and horizontally as detailed on the drawings of all pipe work and equipment.

7 PSL7 CORROSION PROTECTION (CLAUSE 3.9)7.1 PSL7.1 General

No separate payment will be made for work described in this sub-section.

7.2 PSL7.2 Mechanical preparationThe valves shall be rendered smooth and free from undercuts, protrusions, sharp edges and spatter. Edges should have minimum radius of 1 mm.

Cast materials shall only be cast in a mould coated with a suitable mould wash.

Costings shall similarly be ground smooth and surface blow holes accepted after mechanical inspection shall be filled with weld metals or an approved epoxy filler and ground down to a smooth surface.

7.3 PSL7.3 Surface CleaningSurfaces to be coated shall be abrasive blast cleaned in accordance with SABS 064, Section 4.3, especially Procedure 4.3.4, to the following parameters.

DESCRIPTION AND MATERIAL

BLAST MEDIUM

PROFILE MICROMETERS

CLEANLINESS SA RESIDUE

Fabricated or cast iron valves

Clean, fine non-metallic & non-recycled or metallic

Fabricated

max. 75

Casting

Max 50

Min 30

3 0.3%

Other preparation methods, where required or agreed upon shall also be in accordance with SABS 064 as described in the appropriate sections. Laminations, scabs and occluded scale



which become visible after cleaning shall be ground out and the ground area re-cleaned. Excessive grinding depth may be repaired by welding, or the metal shall be rejected at the discretion of the Engineer.

7.4 PSL7.4 CastingThe first cast shall be applied as soon as possible, but never exceeding 4 hours after blast cleaning if the relative humidity (RH) is below 70% or 2 hours if the RH is between 70% and 85%. Coating shall not take place if the RH is 85% or above, nor when the surface is less than 2 above dew point.

If unfavourable conditions prevent applications of the first coat, the surface shall be re-cleaned when conditions are acceptable.

Strict cleanliness between costs shall be maintained. The directions laid down by the specification and by the paint manufacturer for mixing, curing, use of solvents, suitable environmental conditions, and over-coating times shall be strictly adhered to. Adequate ventilation to remove volatile matter shall be ensured.

7.5 PSL7.5 Quality of coatingThe fully cured coating system shall be uniform, smooth, glossy and have acceptable adhesion. Excessive runs and sags, wrinkling, bubbling, blisters, change in colour or gloss, excessive orange peel, dirt, dust or fluff occlusions and other visible defects shall not be permitted. Paint work showing evidence of entrapped solvents after full cure will also be rejected. No inter-cast lamination must take place.

The colour of each coat shall be different to that of the previous coat except where two finishing costs of the same colour are necessary to achieve colour uniformity.

All coating surfaces for water immersion or frequently wetted in service shall show no electrical insulation defects when tested in accordance with the inspection parameters.

Finishing coat colours.

In addition to the finishing coat colour, if specified, the colour recommended for identification marking in SABS 0140 shall apply. Where not specified, the selection of paint colours shall be decided.

All damage that occurs during handling, assembly, transport, storage and erection shall be repaired to the requirements of the specifications. All damage sustained during transport will be repaired by the Contractor.

Proprietary items

Components supplied already painted or protected e.g. gear boxes, etc, may be accepted in this condition provided that they meet the requirements of this specification in general.

Quality control by the Contractor

The Contractor shall produce his own quality control records and tests carried out during all stages of corrosion protection procedures. These shall be made readily available to the Department's Inspector.

7.6 PSL7.6 Paint Systems requiredAll valves and fittings shall be coated as follows:

SURFACE COATING THICKNESS (MICROMETERS)

Lining (inside surface) Epoxy 300

Coating *outside surface) (i) Epoxy plus

(ii) Vinyl enamel colour Brilliant Green

200

25

Flange faces Epoxy 125

Stainless steel components Pickled and passivated with -



SURFACE COATING THICKNESS (MICROMETERS)

Duva chemicals or equivalent

Fasteners Cadmium plated and dichromate (yellow) passivated

15 to 20

The epoxy applied shall be polyamide cured and preferably be solvent free in accordance with SABS 1217. Solvent containing epoxies will, however, be considered.

All external fasteners shall be Epoxy coated after assembly and testing.

8 PSL8 HANDLING AND RIGGING (CLAUSE 4.1)8.1 PSL8.1 Transportation

Pipes and valves shall be protected during transportation and handling against damages caused by impact, dropping, etc. Special care shall be taken during transportation to protect pipes. Rubber lined vertical posts shall be spaced on the sides of transporting vehicles to provide adequate support to the loaded pipes. Large diameter fibre cement and concrete pipes (that is, diameter above 800mm) shall be supported on supporting stools in transit. All pipes shall be inspected for defects immediately before laying and faulty pipes or pipes which have suffered damage which would affect their serviceability shall not be used in the Works.

8.2 PSL8.2 Off-loading and storagePipes which cannot be off-loaded by hand shall only be lifted by means of suitably approved broad band slings. The use of wire, chains, hooks, crowbars and similar items shall not be permitted and the pipes, fittings and specials shall not be handled in such a manner as could cause damage to occur.

Pipes, fittings and specials shall at no time be laid, stacked or rolled directly onto the ground but shall be supported on suitable padded cradles or other approved material near each end of the pipe, fittings or special. Particular care shall be taken where pipes with fitted couplings are handled or stacked to prevent any pressure on the couplings. Where loose AC-couplings are provided the couplings shall be stored flat on their sides and under no condition be rolled or stored in an upright position.

All PVC-pipe work as well as the rubber sealing rings in pipe couplings shall be protected from the elements to prevent deterioration of the pipe work.

8.3 PSL8.3 Inspection on deliveryThe Engineer's Representative will thoroughly inspect all pipes, fittings and specials delivered to the site but his acceptance of same as being in good condition shall not relieve the Contractor of any of his obligations or responsibilities under this Contract.

Materials rejected by the Engineer shall be removed from the site and shall be replaced by other approved materials by the Contractor at his own expense.

9 PSL9 SETTING OUT (CLAUSE 4.2)Alignment of the pipes may be done either by means of infrared sighting equipment or by sight rails. The following method should be followed if alignment is to be done by sight rails :

Prior to the preparation of the pipe bedding, the Contractor is to erect sight rails of 38mm x 150mm timber at intervals of a maximum of 60m or at points of change of pipe gradient, whichever may be the lesser. These shall be supported by wooden posts on each side firmly fixed on solid ground and the rails shall be accurately placed in position as regards alignment and invert level of the proposed trench.

The centre line of the trench (i.e. pipeline) shall be denoted on each sight rail, both back and front by a single vertical line drawn therein, and the rail on either side of the centre line painted in



two contrasting colours. The Contractor shall also provide boning rods of an approximate length marked in even decimetres for use in the fixing of the trench bottom to the correct line and level.

10 PSL10 LAYING AND JOINTSNo pipe laying shall commence on any particular section until the Engineer has approved of the trenches and bedding. No pipes shall be laid in trenches with free standing water. The pipes shall be laid true to the lines, levels and grades shown on the drawings or ordered by the Engineer, to within a tolerance specified.

The open ends of all pipes and fittings shall be suitably closed to prevent the ingress of soil or other matter into the pipes. After the pipes have been laid, they shall be inspected and checked by the Engineer for grade, direction and line. If any pipes have been inaccurately laid, the work shall be rectified as ordered by the Engineer at the Contractor's expense.

All valves and fittings are to be checked beforehand to ensure their operational order before being placed in the line. They are to be set correctly in position as indicated on the drawings or as ordered by the Engineer, and where required, are to be supported by bedding or concrete supporting stools. Care shall be taken to ensure that no loose fill material or foreign matters enter the pipes or fittings. After the pipelines have been inspected and passed by the Engineer, backfilling shall proceed and brought up evenly on both sides of the pipe with selected material as specified.

Jointing of pipes shall be carried out strictly in accordance with the manufacturer's instructions. Ends of pipes and joints shall be completely free of dirt and grit when the joints are assembled.

11 PSL11 BACKFILLFollowing the inspection by the Engineer with respect to the grade, direction and line, as well as the successful testing of the pipeline, the Contractor shall promptly refill trenches and excavations.

11.1 PSL11.1 Material and MethodThe Contractor shall promptly refill trenches and excavations as soon as the works have been inspected, tested and passed by the Engineer.

The backfilling in contact with pipes and for a distance of 200 mm above the barrels of the pipes shall consists of selected material from the excavations, free form excess clay, vegetable matter and stones. Shortages of selected material in any section of a trench shall be made up free of additional cost by borrowing from adjacent excavations containing a surplus of suitable material.

The selected material shall be brought up in 150mm layers, uniformly moistened to the optimum moisture content to attain the specified compaction and shall be thoroughly compacted round the pipes and joints. Special care shall be taken in filling joint holes and the selected material shall be firmly punned in, slightly moistened if required in order to ensure bearing for the length of each pipe.

Sufficient topsoil shall be set aside during excavation to form not less than the upper 150 mm of backfill material for re-establishment of vegetation.

In no case shall any filling be deposited in water. Trenches shall be kept free of water until backfilling has been completed. From above the top of the selected backfilling, unselected excavated material, excluding stones larger than 150 mm in any dimensions, shall be used for backfilling, which shall be compacted in layers not exceeding 150 mm.

Only equipment approved by the Engineer shall be used for the compaction of the fill.

The superimposed loading resulting from the use of self-propelled or tractor-drawn compaction equipment shall not exceed the maximum external loading for any particular pipe in accordance with H20 Highway Loading as specified by the manufacturers.

The backfill shall be mounded to a height of 100 mm above ground level with gaps allowed at regular intervals for cross drainage.

Immediately after completion of the backfilling all surplus materials shall be levelled off adjacent to the pipeline.



Any settlement during the excavation of the contract and the period of maintenance shall immediately be made good by the Contractor with topsoil of the same type as that adjacent to the trench.

The Contractor shall fill in with approved material and consolidate all cavities caused by slips, rain, floorings, etc. or any other cause whatever at his own expense, to the satisfaction of the Engineer.

The Contractor shall make good promptly, to the entire satisfaction of the Engineer at his own expense, during the whole period that the works are in his hands, including maintenance period and, as often as necessary, any settlement that may occur in the surface of roads, footpaths, private or public property, etc., caused by his trenches or excavations. He shall be liable for any accidents caused thereby and repair at his own cost any damage caused to property by such settlement.

During the execution of the Contract, the Contractor shall maintain a regular patrol, particularly after rains, of all completed backfilled excavations, in order to locate any subsidence, which he shall make good properly without any delay and shall not defer such action until complaints are received.

12 PSL12 TOLERANCESThe more stringent of SABS 1200 L 6.2 and 6.3, and the following relative deviation shall be applicable to pipe work.

(a) Relative Deviation laterally from line : 0,1% of distance between points.

(b) Deviation from gradient

Design gradient less than 1% : 0,04%

Design gradient greater than 1% : 0,08%

13 PSL13 PIPELINE MARKERSA detail of the required concrete pipeline marker is included in the Annexures to the Specifications. Measurements will be per unit and the payment made accordingly shall be full compensation for the supply and installation of the pipeline marker.

14 PSL14 MARKING OF ROUTE AND POSITIONThe route and position of reticulation and bulk supply mains shall be marked on the surface by one of the following methods :

pipeline route markers

standard service markers

painted service marking

15 PSL15 STANDARD HYDRAULIC PIPE TEST (CLAUSE 7.3)Field test pressures shall be 1,5 times the recommended maximum working pressure for the class of pipe and/or valves, specials and fittings being tested.

16 PSL16 MEASUREMENT AND PAYMENT16.1 PSL16.1 Principles

Measurements of the pipelines, specials and valves shall be as per the appropriate items in SABS 1200L i.e. Items 8.2.1, 8.2.2 or 8.2.3.

Payment shall be subdivided as follows :

(a) Supply of pipes to site - the percentage allowed for in the Appendix to the Form of Tender. (i.e. 80%)

(b) Successful testing of pipeline - remainder of the tendered amount, save for the normal retention.



16.2 PSL16.2 Scheduled Items16.2.1 PSL16.2.1 Supply, Lay and bed Pipes complete with couplings

Unit : mPipelines will be measured by length over all lengths as laid. No deduction will be made for specials and valves. Separate items will be scheduled for each diameter and each type and class of pipe laid. The rates shall cover the cost of the provision of the pipes complete with couplings, and the costs of the handling, inspecting, transporting, bedding, laying, jointing, cutting, testing and when relevant, disinfecting of the pipes and the joints.

16.2.2 PSL16.2.2 Extra-over 15.2.1 for the supplying, laying and bedding of specials completewith couplings Unit : no

16.2.3 PSL16.2.3 Extra-over 15.2.1 for the supplying, fixing and bedding of valves Unit : no

Specials and valves will be measured by the number of each type, class and size.

The rates which shall be extra-over the rates for 15.2.1, shall cover the cost of provision of each special or valve, complete with couplings and the cost of the handling, fixing, bedding and testing of the special or valve, as applicable and the cutting of the pipes.

No extra payment over and above the rates will be made in respect of any additional cutting, turning and jointing of pipes required for the location of valves, specials, etc., in the positions given on the drawings.

Unless specific provision is made in the schedule, no separate payment will be made for the supply and fitting of any additional joints and jointing materials which may required for the connection of shortened pipe lengths.

Payment shall be subdivided as listed in PSL4.1.



PSLB BEDDING (PIPES)

1 PSLB1 BEDDING (SUB-CLAUSE 3.3)1.1 PSLB1.2 Rigid Pipes

All steel, clay and concrete pipes shall be laid on a class C bedding as shown on Drawing LB-1 of SABS 1200LB.

1.2 PSLB1.2 Flexible pipes uPVC, mPVC, and polyethylene pipes will be regarded as being flexible and shall be bedded as per Drawing LB-2 of SABS 1200 LB.

2 PSLB2 MATERIAL NOT AVAILABLE FROM TRENCH EXCAVATION (CLAUSE 3.4.2)Bedding and selected fill materials shall be obtained from trench excavation, other necessary excavations or from borrow pits. The engineer reserves the right to designate alternative sources. He also reserves the right to make a ruling whether special efforts must be made to construct specifically a separate bedding for pipes where the in-situ material proved to be of good quality.

3 PSLB3 CLASS A BEDDING (SUB-CLAUSE 5.2.1)Concrete to be used in class A bedding to pipes shall be of grade 20/19.

4 PSLB4 CONCRETE CASING TO PIPES (SUB-CLAUSE 5.4)Concrete to be used in the casing of pipes shall be of grade 20/19.

5 PSLB5 TOLERANCE ON COMPACTION OF BEDDING MATERIAL Degree of accuracy II shall prevail.



PB EQUIPPING OF BOREHOLES

1 PB1. SCOPEThis sub-section includes all work related to the installation of borehole equipment including but not limited to the following :

o Hand pumps

o Windmills

o Diesel driven engines

o Positive displacement pumps

o Submersible pumps and associated electrical work.

o Solar powered pumps (submersible and positive displacement)

The service to be rendered is the provision, installation, erection and commissioning of all the borehole equipment and appurtenant works.

2 PB2. GENERALDepending on borehole test results, the borehole will be equipped upon the Engineer's site instruction. The pump set shall comprise one complete borehole pump, including all pipe work to couple to the main pipeline, electric or diesel driven motors, pulleys, driving belts, etc. The complete installation is to be housed in a standard pump house as detailed on drawing ______________________.

It should be noted that although provision is made for floor space to accommodate chlorination equipment, no chlorination equipment is called for under this contract.

Drawings _____________________ to ______________________ illustrate the standard layout of equipment and pipe work to be installed in each pump house.

3 PB3. REMOVAL OF EXISTING EQUIPMENT FROM BOREHOLESIn cases where the boreholes listed are presently equipped (hand pump, power head, engine and shelter or windmill), all such equipment shall be carefully dismantled by the contractor and stored securely at the Contractors' camp, to be handed over to the Employer before the end of the Contract.

Where boreholes are sealed, the Contractor shall remove these entirely and demolish the seals. All such debris shall be dumped at spoil sites indicated by the Engineer.

The Contractor will only be permitted to expose the boreholes immediately prior to equipping such boreholes as instructed by the Engineer and shall at all times exercise great care to prevent the ingress of debris or any foreign material into the borehole.

4 PB4. DESIGN, MEASUREMENTS AND RECORDSPB4.1 Prior to ordering any materials to be used for equipping boreholes, the Engineer shall issue

a list to the Contractor, specifying the equipment options to be installed at each borehole.

The contractor shall, before ordering any equipment, verify the availability of the selected equipment with the supplier.

The Contractor must proceed with the immediate ordering and/or installation of the specified equipment after receipt of these lists.

PB4.2 Prior to equipping each borehole, the Contractor shall measure and record the diameter of the borehole at natural ground level, the static water level (in metres below ground level), the depth of the casing and the total depth (in metres below ground level). These measurements shall be verified with the Engineer prior to equipping the borehole.



5 PB5. HAND PUMPSBoreholes to be equipped with hand pumps shall be equipped with Reciprocating type or Positive displacement type hand pumps, or similar approved in writing.

6 PB6. WINDMILLS AND WINDMILL EQUIPMENT6.1 PB6.1 Windmills

All windmill heads shall be reciprocating double geared, oil lubricated, with the gearbox comprising one single piece casting, positively weather sealed. The main bearings shall be of white metal. All wind-wheels shall have a nominal diameter as specified.

The windmill shall have a concave shaped wheel with a gravity governing action reefing system. The tower is to be galvanised and with the number and quality of legs to the manufacturer's specification.

All components of windmills shall be assembled and erected to the Manufacturer's details and requirements and to the satisfaction of the Engineer. The Contractor shall at all times have at his disposal one neat complete set of erection instruction manuals at the erection site.

All windmills shall be completely covered by the Manufacturer's guarantee of not less than twelve months as dated from the date of commissioning the particular plant.

6.1.1 PB6.1.1 General Safety Regulation of Safety Legislation no.13A(6)(a) and 13A(6)(b)(i)Extracts from Safety Regulations are repeated here to draw the Contractor's attention to them. Should the Contractor not comply with these Regulations, the Engineer shall stop all work on site until the Contractor complies with these Regulations and all other requirements of the Occupational Health and Safety Act.

(a) An employee shall ensure that every ladder is constructed of sound material and is suitable for the purpose for which it is used, and-

(i) is fitted with non-skid devices at the bottom ends and hooks or similar devices at the upper ends of the stiles which shall ensure that stability of the ladder during normal use; or

(ii) is so lashed, held or secured whilst being used as to ensure the stability of the ladder under all conditions and at all times.

(b) No employer shall use a ladder, or permit it to be used, if it-

(i) has rungs fastened to the stiles only by means of nails, screws, spikes or in like manner; or

(ii) has rungs which have not been properly let into the stiles;

Provided that in the case of welded ladders or ladders of which the rungs are bolted or riveted to the stiles, the rungs need not be let into the sides; or

(iii) (has damaged stiles, or damaged or missing rungs.

(c) No employer may permit that-

(i) a ladder which is required to be leaned against an object for support be used which is longer than 9m; and

(ii) except with the approval of an inspector, the reach of a ladder be extended by fastening together two or more ladders;

(d) In the case of wooden ladders the employer shall ensure that -

(i) the ladders are constructed of straight grained wood, free from defects, and with the grain running in the length of the stiles and rungs; and

(ii) the ladders are not painted or covered in any manner, unless it has been established that there are no cracks or other inherent weaknesses; Provided that



ladders may be treated with oil or covered with clear varnish or wood preservative.

(e) When work is done from a ladder, the employer shall -

(i) take special precautionary measures to prevent articles from falling off; and

(ii) provide suitable sheets or receptacles in which hand tools shall be kept when not being used.

(f) An employee shall ensure that a fixed ladder which exceeds 5m length and is attached to a vertical structure with an inclination to the horizontal level of 750 or more -

(i) has its rungs at least 150mm away from the structure to which the ladder is attached; and

(ii) is provided with a cage which -

extends from a point not exceeding 2,5m from the lower level to a height of at least 900mm above the top level served by the ladder; and

shall afford firm support along its whole length for the back of the person climbing the ladder, and for which purpose no part of the cage shall be more than 700mm away from the level of the rungs:

(g) In the case of windmill towers the following shall apply:

(i) There shall be at least 150mm clear space between each rung of the ladder and any part of the tower horizontally behind it.

(ii) The cage mentioned in (f) above shall extend from a point not exceeding 3.5m from the lower level to a height of at least the level of the wooden platform.

(iii) A notice shall be displayed at the top rung of the ladder warning persons to attach their safety belts before proceeding further.

(iv) A notice shall be displayed on the ladder at a height of approximately 1.8m above ground level warning persons to apply the windmill brake before proceeding to climb the ladder.

(v) The notices mentioned above shall include symbolic signs which can be understood by all language groups.

6.2 PB6.2 Borehole CylindersUnless otherwise specified, all boreholes are drilled to a minimum of 150 mm diameter.

Heavy duty mushroom type borehole cylinders, of which the barrel is of seamless brass (alt. stainless steel) tubing shall be used in all cases. The nominal bore of the cylinder shall be as specified. The cylinder stroke shall be in compliance with the windmill specified. Each borehole cylinder is to be fitted complete with suitable brass strainer, screwed directly into the cylinder. Plungers are to be fitted with neoprene buckets.

6.3 PB6.3 Borehole Pump RodsGalvanised solid mild steel pump rods, diameters as specified, with screwed joints in lengths of 3 metres complete with socket and two lock nuts shall be used.

The pump rods shall be supplied, complete with the necessary approved galvanised pump rod couplings to connect the pump rods to the plunger rod of the cylinder, to the packing box rod and to the mill rod connection. Prior to assembly of pump rods, the screwed ends shall receive one coating of an approved protective pipe threading compound in the form of a layer of paste.

Approved galvanised steel mill rod connections complete with bolts and nuts to the Manufacturer's recommendations shall be used to connect the wood mill rods to the pump rods.

6.4 PB6.4 Borehole Rising MainsScrewed and socketed medium galvanised iron piping to SABS62 shall be used for the borehole rising columns. Internal diameters of the rising columns shall be as specified. Prior to assembly of pipe columns, the screwed ends shall receive one coating of an approved protective pipe-



threading compound in the form of a layer of paste. Following assembly, all excess paste shall be wiped off, and the pipe area 300 mm above and below the socketed joint shall be covered with a layer of bitumen-based paint. Stabilisers shall be provided at 12 m spacing on the rising mains.

6.5 PB6.5 Tee and Spill Pieces (Standpipe)At the top of the delivery column a galvanised tee-piece shall be provided to take the discharge pipe. Except in the case of packing box installations, a spill piece (standpipe), having an equal diameter to the rising main, shall be provided to prevent water spilling over the top of the column. Standpipes shall be used only in cases where the discharge head is less than 5 metres. The standpipe shall be securely braced to the tower posts at the top end of the pipe.

6.6 PB6.6 Packing Box / Stand Pipe Gland / Force headHeavy duty seamless brass tube type packing boxes with positive neoprene sealing buckets and screwed externally to fit the specified borehole rising main or equivalent units, shall be provided in all cases where the discharge head exceeds 5 metres. Packing boxes shall further comply with the maximum specified discharge head of 12 metres.

Packing boxes shall be installed complete with all necessary fittings required for the proper couplings of pump rods and mill rods.

6.7 PB6.7 Base PlatesThe Contractor shall supply over each borehole one set of cast iron clamps and base plate of a size conforming to the diameter of the borehole rising main, complete with four 250 mm long by 12 mm dia foundation bolts and nuts. The foundation bolts are to be embedded into a Class 15/20 mix concrete footing of 600 mm minimum depth and 600 mm square surface dimensions. The bolts shall be located thus, that each half of the clamp (provided with slotted holes) can be moved back and forward sufficiently when column pipes are being lowered or raised. The base plate halves shall be clamped together using two bolts.

6.8 PB6.8 Discharge Pipe WorkDischarge pipe work comprising one horizontal length piping, GMS to SABS 63.450 mm long, two 900 female bends and one vertical length piping 750 long, all as detailed on plan and shall be fitted to the horizontal outlet of the tee piece at the top of the rising column main. Internal diameters of the discharge piping shall be as follows :

Rising column dia mm Discharge pipe dia mm

40 40

50 50

65 50

In the latter case, a 65 x 50 reducing bush shall be fitted to the rising main tee outlet. All discharge pipe work shall be medium galvanised steel and pipe lengths shall be screwed both ends.

6.9 PB6.9 Air ChambersAir chambers shall provide adequate capacity of air cushion and be fitted with externally fitted release plugs.

6.10 PB6.10 Concrete FoundationsFoundations holes for windmill towers shall be excavated to the positions, depths and widths as recommended by the Manufacturers of the particular plant but shall however not have dimensions of less than 1.00 metre in depth and 1.00 m diameter at the bottom of the foundation hole.

Following completion of the excavation of the foundation holes, a layer of about 150 mm thick concrete, class 15/20 mix, shall be placed in the bottom of the holes ensuring that the concrete surface in the different holes are at the same level. Four 600 mm long 20 mm diameter mild steel bars with 100 mm of both ends bent ninety degrees, shall be placed 150 mm from the



circumference of the holes, into the concrete layer of each hole. After the concrete has set, the steel anchor posts of the tower shall be carefully placed and positioned into the holes and each hole shall be filled with another layer of 300 mm of concrete. Care shall be taken that the surface of the older concrete is clean before new concrete is placed. The concrete shall completely cover all foundation plates. By using circular shuttering of approximately 250 mm diameter, concrete shall then be poured around each tower post bringing the top of the concrete to ground level where it shall be neatly rounded off. Earth shall then be rammed around the concrete.

The Contractor shall ensure that the tower is perfectly level when erected and if applicable that the borehole is in the centre of the tower posts and with a plumb line or other means that the centre of the tower cap is directly above the borehole.

6.11 PB6.11 ROTARY WINDMILLSThe windmill head, wheel and tail unit, as well as the tower shall be to PB6.1. The rotary screw pumps shall be self priming positive displacement pumps or similar approved as per PB8.

The windmill shall be supplied with a gearbox of ratio 1:10 and shall translate reciprocal motion into rotary motion. It shall be furnished with a double set of gears. The discharge head shall be to the specifications given under PB8.

The borehole pump rods shall be to PB6.3 for the rods above the gearbox, but shall be as for positive displacement borehole pumps (PB8), below the discharge head. The former borehole pump rods shall be guided by flanged bearings attached to the lower portion of the tower structure, including a quick-release coupling for attachment of the pump to an electrical or diesel driven power source. Stabilisers shall also be installed every 12 m on the borehole rising mains.

Column piping and ancillary pipe work shall be to PB8 and PB10, respectively.

The concrete foundations for the tower shall be constructed to PB6.10, while the concrete work related to the installation of the discharge head shall be similar to that specified under PB8.

7 PB7. DIESEL DRIVEN ENGINESDiesel driven engines shall be air-cooled type, or otherwise as approved by the Engineer in writing.

All engines to be installed shall be painted two coats of a bright yellow enamel paint suitable for application on diesel engines. Initial surface preparation to be to Manufacturers Specification.

Diesel engines will in addition be supplied complete with the following standard equipment.

(Optional items to be excluded from the standard supply)

(i) Fuel, air, lubricating and oil filters.

(ii) Fan shroud.

(iii) Engine crank handle.

(iv) Flexible exhaust to pump house exterior complete with silencer.

(Optional)

(v) Weatherproof 90 litre steel diesel tank on stand, mounted inside the pump house to the steel structure. (Optional)

(vi) Interconnecting copper pipe work between tank and engine complete with fittings, shut-off valve at engine; fuel filter and fuel indicator. (Optional)

(vii) Oil pressure gauge. (Optional)

(viii) V-belt drive assembly to pump complete with detachable steel plate guard.

(ix) Set of standard engine slide rails complete with necessary holding down bolts.

(x) Machine tool kit. (Optional)

(xi) Operator's handbook and parts list.

(xii) Vibration hour meter. (Optional)



(xiii) Metal identification plate with the following information embossed on it: Make & Model No. Serial No. Rotation Speed (rpm) & Continuous Rating (kW).

Note : Optional items to be priced separately in Schedule Of Rates.

8 PB8. BOREHOLE PUMPSPumps shall be of the type specified and be self-priming, positive displacement rotary type, vertical spindle borehole pump, suitable for pumping potable water to a concrete reservoir or elevated tanks. Solar powered positive displacement pumps are also to be considered for installation.

(i) Column piping shall be standard galvanised medium class water piping. Column stabilisers shall be fitted to at least every fourth column pipe to secure a neat fit against the borehole perimeter. During assembly of pipe columns, the pipe area 300 mm above and below each socket shall be covered with a protective coating of bitumen base paint, following securing of the socketed joint.

(ii) The inlet of the pump unit shall be fitted with a suitable strainer.

(iii) The discharge head shall incorporate the pulley housing and shall be mechanically safeguarded against incorrect direction of rotation. The discharge head shall be provided with a cast iron or fabricated steel bed plate fixed to a concrete foundation block of adequate size by means of suitable anchor bolts.

Pump and electrical/diesel drive motors shall be accurately aligned on an integral steel frame according to installation instructions of the pump manufacturer and shall allow adjustment in any direction on the horizontal plane for both engine and pump. Length of V-belts shall be as recommended by the pump manufacturer. A detachable steel plate guard, painted red, shall cover the entire V-belt drive. Provision to be made for adjustment of the guard to suit occasional V-belt tension adjustments.

(iv) After installation of the pump, the supplier must check the alignment of the pumps as well as starting and commissioning of the pump installations. When satisfied, the supplier shall issue a certificate stating that installation complied with the manufacturer's specifications.

(v) Centrifugal clutches will be provided where pumps are driven by diesel engines and where instructed by the Engineer. Alternatively drive shafts of the engine and pump shall be connected by a flexible coupling as recommended by the manufacturers of the diesel unit.

(vi) A metal identification plate shall be attached to the discharge head with the following information embossed there-on : Make and model no. (pump and discharge head), Serial no. (pump and discharge head, driven rotational speed (rpm), delivery (l/s) and head (kPa).

9 PB9. SUBMERSIBLE PUMPS(i) Submersible pumps shall be properly insulated and provided with an adequate lightning

protection system. Tenderers are required to state which lightning protection system would be provided.

(ii) Submersible positive displacement pumps shall have a single rotating rotor in a resilient rubber stator. The rotor shall be hard chrome plated with a stainless steel pump casing.

(iii) Submersible centrifugal pumps shall be suitable for either 220 volt or three phase 380 volts.

(iv) Solar powered submersible pumps are to be of the centrifugal type.

(v) Metal identification plates shall be fixed to the outside of the electrical control box. The following information shall be embossed on it : Pump make and model no, Serial no, Rotation speed (rpm), delivery (l/s), head (kPa).



10 PB10. ANCILLARY PIPE WORKThe following ancillary pipe work to be supplied and installed on delivery side of each borehole pump : Note : y mm is the specified diameter in the Bill of Rates and will be ordered by the Engineer for each installation.

(i) Galvanised steel reducing pipe work (female ended) to y mm diameter B.S.P. fixed to pump discharge head. :set

(ii) Galvanised steel pipe piece 300 long, y mm diameter B.S.P. screwed both ends. One glycerine filled pressure gauge 0-10 bar working pressure, 100 diameter complete with isolating cock to be fitted to pipe piece set

(iii) Galvanised steel screw-on flanges y mm diameter, drilled BS 10 Table D, complete with bolts and IR rings: 6 sets

(iv) Wafer pattern swing check valve y mm diameter. (Check valves smaller than 50 mm shall be specified by the Engineer). : 1 off

(v) Galvanised steel (medium class) pipe piece 0,8 m long y mm diameter, screwed B.S.P. both ends : 1 off

(vi) y mm dia water meter, flanged, drilled BS 10 table D. : 1 off

(vii) Galvanised steel (medium class) piping in lengths 0.4 m each,screwed both ends y mm diameter B.S.P. :2off

(viii) y mm diameter brass valve with two galvanised steel screw on flanges, drilled BS 10 table D complete with bolts and IR rings : 1 off

(ix) y mm diameter B.S.P. galvanised steel elbow, female ended. : 1 off

(x) y mm diameter B.S.P. end plug. : 1 off

11 PB11. EQUIPMENTAll equipment should be installed according to the relevant manufacturer specifications. Sizes of bases and plinths should be as prescribed by their instruction. Civil work should be constructed as per the applicable specifications. All mechanical equipment selections must be verified by the supplier prior to installation.

The holding down bolts of diesel engines shall have a longer thread than required for proper installation, and shall be supplied with two nuts each. One nut shall be used to anchor the engine to the frame, while the second shall be screwed-on and spot-welded to the upper end of the threaded bar.

12 PB12. ELECTRIC MOTORS(i) Electric motors shall comply with SABS 0157, Part 1, for quality, and SABS 948, Part 1

(1978) for performance. Insulation of motors shall be class "F" to BS2757.

(ii) Motors up to 3 kW shall be fan cooled single phase, 220 Volt, 2-pole, 50 Hz, TEFC induction motor suitable for D.O.L. starting.

Motors between 3 kW and 5 kW shall be fan cooled, aluminium framed, foot mounted, 380 Volt, 3-phase, 50 Hz, TEFC type, squirrel cage induction motors suitable for D.O.L. starting and be suitable for Star Delta starting when the rating exceeds 5 kW.

(iii) Pulleys supplied with motors shall be between 102 mm and 259 mm, be 2-grooved B-sectional taper-lock pulleys and be supplied complete with suitable fan belts. The rate tendered for the motors shall be deemed to include for the pulley and fan belts.

(iv) Metal identification plates shall be attached to the motors, with the following information embossed there-on : Make and model number, serial no, insulation class, frame type, rotation speed (rpm), power output (kW) and current at duty point (A).



13 PB13 ENGINE PROTECTION COVERS/SHELTERSFor certain "Agricultural" engine and pump installations, it is not necessary to provide for a full "engine room" to protect the engine and pump. In these instances an alternate type of protection cover would be suitable. This alternate type of protection cover must have the following attributes:

Provide protection to both the motor and pump from rain and sun.

Provide protection from mechanical damage to the installation by animals, etc.

Provide protection and be a deterrent for theft of the engine and/or pump.

Allow easy access to start and service the installation.

Protect the operator from moving parts.

A unit price for complete manufacture and installation must be submitted with the proposal as well as a complete price for the appurtenant concrete footing/floor. Floor to be approximately 150 mm above natural ground level.

Price for shelter/cover to include for locking mechanism.



PC CONSTRUCTION OF RESERVOIRS AND DRINKING TROUGHS

1 PC1. CONCRETE RESERVOIRS WITHOUT ROOFS1.1 PC1.1 General

A number of concrete reservoirs are to be supplied, erected and commissioned by the contractor, generally one at each site where a windmill will be erected at positions to be indicated by the Engineer. Each reservoir will be positioned within a 30 m radius of the borehole, but in each case the centre point of the Reservoir will be staked by the Engineer.

1.2 PC1.2 Materials of ConstructionThree alternative concrete reservoirs without roofs will be considered by the Employer :

(a) Farm Reservoir 7.5 m dia, 67 m3 capacity, as detailed on plan _________________ complete installation.

(b) Pre-cast concrete reservoirs with approximate dimensions of 7.31 m nom. dia x 1,5 m total depth with a capacity of some 60 m3. The complete reservoir shall be erected, waterproofed and connected to water pipelines all to the requirements of the Manufacturer. Before commissioning of the reservoir, a certificate shall be issued by the Manufacturer providing written confirmation that the reservoir has been erected all in accordance with the Manufacturer's specifications and bears a twelve month guarantee as from the date of commissioning.

1.3 PC1.3 Reservoir Site PreparationReservoir site preparation shall be done in accordance with the requirements of SABS 1200 C, D and AD where applicable. Prior to site preparation, the Engineer shall locate and describe the proposed reservoir centre position and determine the floor and wall founding level. The following tolerance will apply to founding levels :

RD = + 25 mm

1.4 PC1.4 Waterproofing of ReservoirsPrior to acceptance, each reservoir shall be filled with water and successfully tested for water leakage. A reservoir shall be considered to pass the water leakage test if no visual water leaks can be detected on the dry face of the concrete structure.

1.5 PC1.5 Reservoir Inlet Pipe workEach reservoir shall be fitted with one set of 50 dia galvanised steel screwed inlet pipe work comprising two female 900 bends, one pipe piece 2.2m long, one pipe piece 0.3 m long and one holder bat, all forming one complete assembly. The inlet discharge pipe shall be positively fixed to the reservoir perimeter wall via approved holder bats.

1.6 PC1.6 Reservoir Scour Pipe workEach reservoir shall be fitted with one set of 80 mm nom. dia galvanised steel screwed pipe work, cast in flush with the concrete wall inner face, fitted externally with one 80 mm nom. dia. brass full way valve.

1.7 PC1.7 Reservoir Outlet Pipe workEach reservoir shall be fitted with one set of 50 mm nom. dia galvanised steel screwed pipe work, cast in flush with the concrete wall inner face, fitted externally with one 50 mm nom. dia brass full way valve, two female 900 bends, one pipe piece 0.6 m long and two standard 6.7 m long galvanised steel pipe lengths. The pipe end shall be fitted with one 50 x 40 dia galvanised reducing socket.

Under no circumstances will a combination of scour and outlet pipe work be considered.

2 PC2. REINFORCED CONCRETE RESERVOIRS WITH ROOFSReinforced concrete reservoirs (50 m3) are to be constructed where specified by the Engineer.



These reservoirs are to be constructed, complete with valves, manholes and covers and appur-tenant pipe work and equipment, according to drawing no's ________________ and ______________________.

The position of these reservoirs are to be indicated on-site by the Engineer. Site preparation and finishing-off works to be to SABS 1200 DA, while concrete works are to be to SABS 1200 GA.

3 PC3. CONCRETE WATER TROUGHS3.1 PC3.1 General

A number of concrete drinking troughs is to be supplied and erected generally one at each windmill site although some sites could require more drinking troughs.

3.2 PC3.2 TroughsThe concrete drinking troughs shall be as detailed on drawing no. __________________________. A valve chamber comprising one 1.2 m length of 1 000 mm ND, dia FC class 06 piping complete with one 1 050 mm dia standard concrete manhole cover slab including one manhole cover and frame (SABS 558 Type 4) with locking device shall be fixed centrally in the floor of the trough to protect the valve. The FC valve chamber shall be provided with two 100 mm dia half-round water outlets at the base. Each trough shall be provided with 40 mm dia galvanised steel inlet pipe work, commencing at a point 2.8 m distant to the external periphery of the outer trough wall, laid 600 mm beneath natural ground level, directed radially to the trough centreline, to discharge through a 25 mm dia. low pressure brass ball valve fitted with large brass ball. Ball valve to be located inside valve chamber to ensure free movement of level and ball under all flow conditions.

Each trough shall be provided with one complete cast in-situ circular, reinforced concrete apron slab, all as detailed on drawing _____________________. The slabs shall be cast alternately in the sections as specified and provision shall be made for vertical construction joints.

3.3 PC3.3 WaterproofingPrior to acceptance, each trough shall be filled with water and successfully tested for water leakage. A trough shall be considered to pass the water leakage test if no visual leaks can be detected on the dry face of the concrete structure.



PD ELECTRICAL WORK AT BOREHOLES

1 PD1 SCOPE OF ELECTRICAL INSTALLATIONThis section includes the design, manufacture, supply, delivery, offloading, storing, if necessary, erection, painting, commissioning, testing and maintenance during the Maintenance Period, and final handing-over of all necessary electrical equipment (unless otherwise indicated below) which shall including the following:

Supply and installation of the feeding cables from the Eskom metering kiosk to the MCC.

Supply and installation of motor control centres as specified.

All control cabling associated with the installation.

Complete electrical installation in the pump house.

Complete earthing of the electrical installation.

Supply and installation of all instrumentation.

2 PD2 INTERPRETATIONS2.1 PD2.1 Supporting Specification

This particular specification is supported by the specifications listed in sections 4.1,4.2 and 4.3 hereof and which form part of the contract documentation.

2.2 PD2.2 ApplicationThe specifications that follow are essentially functional specifications only. The contractor shall design the various installations and produce complete lists of equipment complying with the requirements set out below and with those of the standard specifications listed in section 5 of this document and he shall submit these to the Engineer together with appropriate circuit diagrams for approval before commencing manufacture of the individual MCC’s.

3 PD3 GENERAL REQUIREMENTS3.1 PD3.1 Standards

All material and equipment supplied and/or installed under this Contract shall be new and of good quality and shall comply with the requirements laid down in the latest editions of the relevant SABS, BS or IEC Specifications and their amendments (if any) and the requirements of this specification.

In the event of items bearing the SABS mark being available in respect of the materials and equipment required, only items bearing this mark will be acceptable. The workmanship and finish of work shall be of a high standard throughout and to the satisfaction of the Engineer.

Similar equipment supplied under this contract must be identical in all respects and it shall be possible to interchange any of the same equipment under this contract.

All auxiliary equipment must also be identical including items such as contactors, fuses, motors, fans, method of wiring, numbering of wires, relays, indication lamps, instruments and other parts.

3.2 PD3.2 Compliance with Law and RegulationsThe work shall be carried out strictly in accordance with and all material and equipment supplied shall comply with the following laws and regulations where applicable:

(a) The latest edition of the “Code of Practise for the Wiring of Premises”, SABS 0142, as amended;

(b) The Machinery and Occupational Safety Act (Act No. 6 of 1983) as amended;

(c) The “Electrical Supply Bylaws and Regulations” of the Supply Authority;

(d) The Local Fire Office Regulations;

(e) The Code of Practise for the Installation and Maintenance of Electrical Equipment used in Explosive Atmospheres” (SABS 086).



The Contractor shall be responsible for serving all notices and paying all fees due in terms of the above laws and regulations.

Where conflict exists between any of the above regulations and the specifications, the said conflict must be referred to the Engineer in writing for his ruling.

3.3 PD3.3 Radio and TV InterferenceAll equipment installed under this Contract shall comply with the Government Notice No. R.2246 and any other applicable rules and regulations in respect of radio and TV interference’s. Any equipment found producing interference subsequent of commissioning shall be suppressed or replaced to the satisfaction of the Engineer without any additional cost.

3.4 PD3.4 Site ConditionsThe electricity supply system with be a 400/230V, 50Hz, three phase, four wire system with solidly earthed neutral and all material and equipment supplied and installed under this contract shall be rated, designed and manufactured for satisfactory operation on this system.

It must be noted that severe voltage surges and/or spikes may be experienced on the electricity supply system due to lighting or switching operations and where necessary the Contractor shall provide the necessary protective devices against such surges and spikes for the equipment supplied and installed by him with special reference to electronic devices. The following arresters shall be provided:

3.5 PD3.5 Lightning ArrestersTransducers/TransmittersWhere transmitters require a separate power supply, in-line suppressing shall be protected as specified in the following paragraph.

Signal Cables for Transducer/TransmittersAll signal lines entering or leaving the transmitter station cabinet shall be protected from induced or direct surges.

The coaxial lines to the ultrasonic transducers need only be protected by small gas arresters. These inputs require protection from high voltage level surges only as they normally carry pulse signals of peak voltage greater than 200V.

In this case, low capacitance gas arresters are recommended, having a 5kA capacity (8/20 us wave shape), a DC breakdown voltage of 450V or higher, and an impulse breakdown voltage of less than 1000V at 1 kV/us rate of voltage rise. The arrester shall be equivalent to the SURGETECH Blitzductor No. 919 203 type or equivalent approved by the Engineer.

12V or 24V Pulse, and 20MA Circuit

12V or 24V pulse and 20MA loop lines shall have a graded type of protection against both common mode (both lines with respect to earth) and differential mode (between lines) surges.

All lines associated with a specific transmitter unit shall have their protective modules housed in a single box with a common earth connection from this box to the earth bus bar.

12V or 24V pulse and 20MA loop lines shall have a graded type of protection against both common mode (both lines with respect to earth) and differential mode (between lines) surges.

All lines associated with a specific transmitter unit shall have their protective modules housed in a single box with a common earth connection from this box to the earth bus bar.

LV SwitchgearLightning arresters shall be provided for each phase in all boards, connected to each phase of the incoming cables.

Lightning arresters shall be solidly earthed directly on the main earth bar. All connections to and from lightning arresters shall be as short and straight as possible.



3.6 PD3.6 Fixing and Support MaterialsAll surface mounted fixing and support materials in connection with the installation of electrical material and equipment such as cable rack, conduit, saddles, clamps, brackets, bolts, nuts, washers, and screws shall be grade 304 stainless steel.

4 PD4 ELECTRICAL CABLES, CABLE TERMINATING GLAND AND EARTH WIRESLow voltage cables shall be for service in a 400/230V 3 phase 50HZ system and shall be PVC insulated, steel wire armoured, PVC sheathed, 660/1000 volt grade, complying with requirements of SABS 150. The cores shall be stranded copper.

Cables and earth conductors for a specific applicable shall be selected strictly in accordance with the requirements laid down in SABS 0142 in respect of current rating and voltage drop.

A proper cable schedule shall be prepared for all cables by the contractor. The format of the cable schedule must first be submitted for approval by the Engineer.

Wherever cables pass through holes in floors and walls or enter or leave pipes or ducts in the floor, the Contractor shall seal the opening with vermiculite plaster or other approved equivalent. The opening shall be filled for the full thickness of the floor or wall and the filler domed or raised slightly to prevent the accumulation of water or oil in the seal.

Each cable connection shall be terminated at each end by means of suitably sized adjustable chromium plated, brass terminating gland complete with armour clamp and neoprene shroud. Cable terminating glands for outdoor use shall be provided with waterproofing inner seals as well as waterproofing seals or nipples. Cable armouring shall be earthed at each end but may not be used as earth continuity conductor.

The power supply to submersible pump motors shall be terminated onto welding plug socket outlets close to the motor. The flexible submersible cable from the motor shall then be terminated onto a plug, which plugs into this welding plug.

All current and earth conductors shall be terminated at each end by means of a suitably sized bolted lug crimped onto the conductor. The lugs shall be bolted onto the relevant bus bars, earth bars or earthing terminals.

Control wiring/cables shall be of a minimum thickness of 2.5 mm sq. Power cables shall be of a minimum thickness of 4.0 mm sq. The cores shall consist of at least three strands of copper conductor unless otherwise specified. Screened cables shall be provided for all signal cables e.g. cables for flow meters.

No joint will be allowed in any run of cable or earth conductor.

The Contractors shall be responsible for the excavation, bedding, backfilling, consolidating and making good of all cable trenches with the exception of those sections of the cable routes where it is specifically indicated on the accompanying drawings that open cable ducts will be provided by others.

The cable trenches for the electrical cables under the electrical contract will be provided by that responsible contractor.

Cable routes must be marked out on site by the Contractor and must be approved by the Engineer before any excavations may commence. This arrangement is to ensure the minimum interference with paved walkways.

Cable trenches for LV power cable shall be deep enough to facilitate the laying of these cables at a depth of 600mm below final ground level. The floors of all cable trenches shall be smooth and free from boulders and sharp rock projections.

Each cable shall be laid in a bedding of river sand or sifted soil 75mm over and 75mm below the cable – clayish soil will not be accepted as bedding.

No cable trench shall be backfilled before the cable(s) in the trench has been inspected and approved by the Engineer.



Backfilling of cable trenches shall be done in stages not exceeding 150mm with through consolidation at each stage to prevent subsequent subsidence.

4.1 PD4.1 Marking TapeYellow PVC marking tape, 150mm wide, with the word “Buried Electrical Cable – Caution” in both English and Tswana, printed in Red or Black, shall be buried approximately 300mm below ground level above the cables.

4.2 PD4.2 Cable MarkersCable markers shall consist of 150mm x 100mm x 500mm high concrete blocks with 50mm high letters cast in the concrete and marked “MV or LV Cable”. The concrete block must not protrude more than 150mm above the finished pavement level.

Cable markers are to be installed at each end, each cable through joint position at each change of cable direction and at 50 metre intervals along the cable routes.

Cables to be installed on walls and structures shall be properly supported and firmly fixed at suitable regular intervals to prevent it from sagging under its own weight or snagging.

All exposed cable runs shall be installed neatly horizontally and vertically, and all exposed vertical cable runs between ground level and 2m above ground level shall be installed in cable sleeve pipes or conduits. These pipes or conduits shall extend to at least 300mm below ground level. Intervals between fixing points for sleeves and conduits shall not exceed 1m.

5 PD5 ELECTRICAL DISTRIBUTION AND MOTOR CONTROL BOARDS5.1 PD5.1 Type and Construction

All electrical distribution boards and motor control board shall be IP54 enclosures constructed of at least 2mm thick steel plate or equivalent and powder-coated in electrical orange paint. Sufficient provision shall be made for heat dissipation and ventilation of the board.

These board shall comply with the requirements of SABS 1180: Part I where applicable. Doors shall be rigid and shall be secured in position by means of robust grade 304 stainless steel hinges. The doors shall each be provided with at least two lockable “square key” panel locks – one at the top and one at the bottom of the lock side of the door. The chassis shall be rigid and facilities shall be provided on the chassis for mounting all the relevant equipment. No equipment shall be mounted on the rear panels of boards.

The panel shall be rigid and readily removable without necessitating the disturbance of any of the equipment on the board. Panels shall be mounted in such a way that all equipment is flush behind the panel.

Each board shall be provided with a suitably rated main isolator. All screws, studs, bolts, nuts and washers used for these boards shall be rust proofed. The use of self-tapping screws will not be permissible.

A suitable galvanised gland plant of 3mm thickness shall be provided for termination cables. Cable entries to MCC’s shall only be from below.

All boards shall only have front access and shall make due allowance for access to the terminations without any physical difficulties.

All boards shall be vermin-proof.

5.2 PD5.2 Internal Wiring for Switchboards and Motor Control BoardsThe internal wiring of the boards shall consist of colour PVC insulated conductors of adequate copper cross-section but minimum of 1,5 mm sq., which shall be neatly installed horizontally and vertically and grouped and installed in wire ways. Only spiral binds to be used. (String will not be acceptable). Numbers of an approved type, shall be provided on each end of each wire, to facilitate the tracing of circuits in accordance with the manufacturers wiring diagram. Wiring shall be fitted with lugs before terminating onto equipment on terminals. Wiring of external circuits shall be terminated on suitably sized DIN rail.

Only Hexagon crimping allowed.



5.3 PD5.3 Labelling of Switchboards and Motor Control BoardsLabels of the black with white lettering “trefolite” type shall be provided below each item of equipment on the front panel of each board as well as on the chassis in close proximity to the relevant equipment to identify such equipment in English in 6mm high lettering.

Each distribution board or motor control board shall be provided with all the necessary equipment to ensure proper functioning of the plant controlled by it.

All safety warning notices shall be in English and the lettering shall be red on a white background.

5.4 PD5.4 Equipment for Distribution Boards and Motor Control BoardsThe Contractor must provide a fully functional system. The equipment shall comply with the specifications below where applicable.

All contactors for the MCC’s shall be of the electromagnetic operated air break type with 220V AC coil voltage. The 220V control voltage shall be supplied from a earth leakage unit suitable for inductive loads.

Category A3 contactors shall be used.

5.5 PD5.5 Distribution and Control Board ComponentsIsolatorAll isolators shall be of the “Load-breaking” and “fault making” type and shall comply with the requirements of BS 5419-1977 and SABS 142 where applicable. The fault level of the isolators shall be equivalent to or higher than the fault level at the associated bus bar or incoming cable.

Moulded Case Circuit BreakerAll moulded case circuit breakers shall comply with the requirements of SABS Specification No. 156-1977 manufacture with a rupturing capacity equivalent to or higher than the fault level at the associated bus bar or incoming cable.

These circuit breakers shall be fitted with copper terminal collector bars where more than one cable tail has to be terminated on the same terminal.

Airbreak ContactorsAll contactors shall be of the totally enclosed three pole, double air break per pole, automatic magnetic type complying with the requirements of SABS 1092 and/or IEC 158-1 for Class AC 3 contactors of Intermittent Duty Class 0,3. The contactors shall be rated for a least 130% of the associated load current.

All contactors shall be provided with arc extinguisher and readily replaceable silver or silver-alloy contacts rated for 2-million “on” and “off” switching operations at rated current. All contactors shall be capable of carrying and making and breaking at a recovery voltage of not less than 90% of the system voltage. Each contactor shall be provided with a closing coil suitable for continuous operation and at least 15 closing operations per hour.

At least two normally open and two normally close auxiliary contacts shall be fitted. The contactor may not hum or chatter in service and the contacts may not bounce on closing.

Current TransformersAll current transformers shall be of the air insulated type complying in all respects with the requirements laid down in BS 3938: 1973 and/or IEC 185. The Contractor shall carefully select the ratio, burden and accuracy class to suit its specific application in accordance with the recommendations and requirements of BD 3938 and/or IEC 185.

The following classes of current transformers shall be used: General Protection (over-current/thermal overload) 10P15

Differential Protection X

kVA, kW, kWh meters and ammeters 0.5

Indicating Instrumentsdocument.doc/dt/ 29/06/2001


All indicating instruments shall comply with the requirements laid down in BS 89: Part I: 1970 for instruments of a 2.5 Accuracy Class. All indicating instruments shall have 96 mm sq. dials.

The maximum demand ammeters shall be of the 6 Amp combined maximum demand registering and instantaneous indicating type having MISC movement and thermal demand indication with an integrating time lag of 15 minutes. The ammeter scales shall be direct reading with a full scale deflection corresponding to 120% of the rated primary current of the relevant current transformer. Each ammeter shall be clearly and indelibly marked to indicate the colour of the phase to which it is connected. Maximum demand ammeters must be installed on all incomer panels (1 per phase).

Voltmeters shall be of the direct reading moving iron suppressed zero type and shall be provided with a 7 position selector switch to select between line voltages, phase voltages and off position.

The running hour meters shall have cyclometer dials indicating up to 6 digits and shall not be MISC resettable.

5.6 PD5.6 Information to be submitted by the successful tenderer in respect of all boardsThe contractor shall submit three paper prints of each of the following drawings, in respect of each of the boards to the Engineer for approval prior to manufacture:

Outline and general arrangements drawings showing main overall dimensions and construction details;

A wiring diagram; and

A schematic line diagram.

5.7 PD5.7 Testing of distribution/motor control boards at the manufacturer’s worksEach distribution/motor control board shall be subjected to the following tests in the manufacturer’s works after manufacture:

(a) A through inspection shall be carried out to ensure compliance with the specification and approved drawings and wiring diagrams and to ascertain that all connections are properly made.

(b) A high voltage test on al primary connections to check the insulation between phases mutually and between each phase and earth.

(c) The polarities and rations of all potential and current transformers shall be checked.

(d) Primary and secondary injection tests shall be carried out on all switching, protection, metering, interlocking and indication circuits.

The manufacturer shall submit three copies of test certificates giving details of conditions and results of tests carried out to the Engineer.

5.8 PD5.8 Testing and Commissioning of Distribution/Motor Control Boards after installation on siteAfter installation on site, but prior to commissioning, the following inspections and tests shall be performed on each distribution/motor control board:

Check all components to ensure that they are free from dust and protective packing material;

Check the operation of all components liable to damage in transit such as meters and protection relays;

The insulation of all primary circuits between phases mutually and between each phase and earth shall be measured;

All fuse links shall be checked for electrical continuity; and

All control supplies shall be checked.

All adjustable protection devices shall then be set and the boards commissioned all in consultation with and to the instruction of the Engineer.



5.9 PD5.9 Labelling StandardsAll equipment must be clearly marked with a unique number.

Markings must if possible always be installed in such a way that it can be read from left to right and from the bottom upwards.

Standard double terminals must be marked in the back row from left to right and then further on at the front row from left to right.

Double terminals used for analogues must be marked from left front to left back incrementing to the right.

All terminals must be marked in numerical sequence. No other markings are allowed except in the MCC panels where the control supply for the bus bars are marked L and N.

All wiring must be marked according to the equipment they are connected to. This includes all screen wires.

Labelling as follows:

Equipment – Black background (9mm wide) with white lettering (5mm).

Wiring – Yellow background with black lettering.

Cables – Yellow background with black lettering.

6 PD6 FUNCTIONAL REQUIREMENTSBorehole pumps shall be started by a 24 hour timer with a 72 hour spring reserve. The pump shall be switched off as a result of any of the emergency conditions or when the elevated tower reaches the full supply level or with a pulse from a pressure switch (when provided). The starter will only try to start the pump after a pre-set time has lapsed in all cases (to prevent a stop, start, hunting situation). The borehole pump will be able to be started in either the manual or auto mode.

6.1 PD6.1 Protection1. Overload

2. Borehole water level low

3. No flow

4. High pressure

5. Single phase/Phase rotation

6.2 PD6.2 IndicationsThe MCC shall be equipped with the following:

1. Volt meter – 0-500 V

2. Amp meter – only one phase

3. Run indication

4. Stop indication

5. Tripped indication

6. Water level low indication

7. No flow indication

8. High pressure indication



7 PD7 EXTERNAL CONTROL AND SENSING UNITS ASSOCIATION WITH ELECTRICAL DISTRIBUTION BOARDS AND CONTROL BOARDS

7.1 PD7.1 Level SensorsType of level control shall be determined by the specific requirement for the installation. Type to be confirmed by the Engineer.

GeneralThe level sensor shall stop the pumping cycle when the water reaches the pre-set low level. The starting cycle of the pump shall only start again after the recovery of the borehole to a pre-set level.

Alternative 1The level sensors shall be installed for the monitoring of the borehole water levels and for pump control. The water pilot shall be a hydrostatic level sensor with various measuring ranges for water applications. A digital and analogue process display complete with 2 limit contactors and 2 control contacts shall be installed in the MCC.

The lever sensor (water pilot) shall be powered from the processor in the MCC. The supplier shall be responsible for the final commissioning and calibration of the level sensors. It will however be the Contractors responsibility to co-ordinate all tests and the commissioning.

Alternative 2Electronic level control relay complete with probes.

7.2 PD7.2 Flow SwitchesFlow switches shall be installed at each borehole in positions as indicated on drawings by means of one inch BSP nipple. The flow switches shall be connected to the MCC panels with 2.5 mm2 x 3 core PVC/SWA/PVC cable. Provision shall be made to prevent unnecessary trips due to surges in the water line.

7.3 PD7.3 Pressure ControlGeneralThe pressure switches shall be installed in conjunction with the necessary relay units and adjustable timers to prevent unnecessary stop/start operations and trips from high pressure surges at start up.

Pressure SwitchesIndustrial type pressure switches shall be installed at each borehole. The pressure switches shall comply to the following:

High accuracy – Optimum repeatability of 1% of full operating range.

Adjustable dead band – Maximum full range, minimum approximately 7% of full operating range.

Fixed dead band – Approximately 3% of full operating range.

Externally visible pressure scales in PSI and bars.

External adjustable not.

Separate electrical chamber for pressure and adjusting chamber.

Withstand high surge pressures.

Vibration resistant.

The pressure switches shall be connected to the MCC panels with 2.5 mm2 x 3 core PVC/SWA/PVC cable. Pressure switches to be selected to work within the parameters of the complete water system.



8 PD8 INSTALLATION AND COMMISSIONINGThe installation, testing and commissioning of all equipment, cables etc. shall be in accordance with the requirements of the standard specification and shall include all construction materials not specified but required to be provide a complete system.

9 PD9 SPARESTenderers shall include in the Schedule of Rates for the supply and delivery of spare parts, which they recommend, should be carried in stock by the Employer and which are sufficient for normal routine maintenance and operation. A full list of the spares offered shall be given as an appendix to the Tender.

10 PD10 POWER AND LIGHTNING INSTALLATION OF BUILDINGSLight fitting shall be of 1500mm double surface mounted waterproof. Hose-proof switches shall be installed as indicated on the drawings. 4.0mm2 PVC insulated house wire shall be used for power outlets and 2.5mm2 PVC insulated house wire shall be used for lighting installation in buildings.

All conduits for power and lighting shall be galvanised and surface mounted. Lightning protection of the pump station buildings shall be in accordance with SABS 03 – 1985.

Schedule of LuminairesType Number DescriptionF Surface mounted waterproof fluorescent fitting with 2 x 58 W lamps.

11 PD11 DRAWINGS AND OPERATION MANUALSOperating and maintenance manuals shall be provided for all equipment provided under this contract.

Three sets of lever arch files shall be provided with all relevant information put in transparent holders. Manuals and drawings shall form part of this first hand over certificate.

Manuals shall include:

dimensioned layout plans

system and component descriptions

wiring diagrams

maintenance instructions with recommended preventative maintenance programme

fault finding analysis

operating instructions

adjustment and calibration instruction if applicable

priced spare parts list with names of local suppliers and list of spares recommended to be kept in stock.

The schematic wiring diagrams shall be mounted in aluminium picture frames with perspex fronts and sealed rear backings on the walls of the pump stations. The relevant control diagrams related to each individual panel shall be placed into plastic folders and then be placed in a holder on the side of the main board.

12 PD12 APPLICATION FOR ELECTRICAL SUPPLYWhen the Contractor is advised of a borehole to be equipped with a borehole pump, (excluding hand pumps and windmills) he shall within 7 days apply to Eskom in writing for an electricity connection. The longitude and latitude of the borehole together with the position of the nearest electricity connection point shall be stated in the application. The contractor shall be responsible for all signatures to be captured on the application. The North West Water Supply Authority will pay all funds for the construction of MV lines, provision of transformers and connections fees to Eskom on demand.



13 PD13 MEASUREMENT AND PAYMENTElectrical work shall be measured as follows:

PD13.1 Cable trench excavation per metre with extra-over for intermediate and hard rock excavation and cable for various kW ratings will be measured per linear meter.

PD13.2 The motor control centre as a lump sum rate which sum shall include for the design, manufacture, transporting, erection, commissioning and maintenance of the complete MCC with all specified equipment in the compartment as per the requirements of this particular specification for various kW ratings.

PD13.3 Supply and control cabling by length.

PD13.4 Control switches by number.

PD13.5 Borehole protection equipment will be measured for various kW ratings.

PD13.6 General items as a lump sum rate for the item of work scheduled.

PD13.7 Supply of drawings, operating and maintenance manuals are measured by number. The mounting of system schematics and circuit diagrams on pump station walls will be measured by number.


Equipping of Boreholes Page (97)Part 1 2 3 4 5 6 7 8 9 Annexures to the Specification



PART 6 ANNEXURES TO THE SPECIFICATIONS




1 PART 6.1 Locality Plans.......................................................................................................1

2 PART 6.2 Specification Drawings..........................................................................................1

3 pART 6.3 Geotechnical Information.......................................................................................1



1 PART 6.1 LOCALITY PLANS



2 PART 6.2 SPECIFICATION DRAWINGS



3 PART 6.3 GEOTECHNICAL INFORMATION


Equipping of Boreholes Page (102)Part 1 2 3 4 5 6 7 8 9 Schedules



PART 7 SCHEDULES




1 PREAMBLE TO SCHEDULE OF RATES..............................................................................1

2 SCHEDULE OF RATES.......................................................................................................1



1 PREAMBLE TO SCHEDULE OF RATES1. This Schedule of Quantities forms an integral part of the Contract Documents as listed in the

Schedule of Documents and shall be read in conjunction with the General Conditions of Contract, the Special Conditions of Contract and Subcontract, the Specifications and the Drawings.

2. For the purposes of this Schedule of Quantities, the following words shall have the meanings hereby assigned to them:

Unit : The unit of measurement for each item of work as defined in the Specifications.

Quantity : The number of units of work for each item.

Rate : The payment per unit of measurement at which the Tenderer tenders to do the work.

Amount : The product of the quantity and the rate tendered for an item.

Sum : An amount tendered for an item, the extent of which is described in the Schedule of Quantities or in the Specifications or elsewhere, but the quantity of which is not measured in any units in the Schedules.

3. The short description of the items in the Schedule of Quantities are for identification purposes only, the work covered by the items being fully specified in the relevant payment clauses in the Specifications. Orders shall only be placed for materials by the Contractor in accordance with wings issued for construction, and not from the scheduled quantities.

4. The payment references appearing in the Schedule of Quantities refer to the corresponding payment references in the Specifications.

5. The units of measurement indicated in the Schedule of Quantities are metric units.

The following abbreviations are used in the Schedule of Quantities:

mm = millimetre

m = metre

km = kilometre

km-pass = kilometre-pass

m2 = square metre

m2-pass = square metre-pass

ha = hectare

m3 = cubic metre

m3-km = cubic metre-kilometre

l = litre

kl = kiloliter

kg = kilogram

t = ton (1 000 kg)



No = number

% = per cent

kW = kilowatt

P C sum = prime cost sum

P. sum = provisional sum

kPa = kilopascal

R/only = Rate only

W/day = Work day

BH = Borehole

6. Unless otherwise stated, items are measured nett in accordance with the Drawings, and the Contractor must allow in his rate for waste.

7. All rates and sums of money quoted in the Schedule of Quantities shall be in Rands and whole cents. Fractions of a cent shall be discounted.

8. Except for Sum Amounts the quantities set out in the Schedule of Quantities are approximate and do not necessarily represent the actual amount of work to be done. The quantities of work accepted and certified for payment, and not the quantities given in the Schedule of Quantities, shall be used for determining payments to the Contractor.

9. Excepting where Sum Amounts are required or where Provisional Sums have been indicated, the Tenderer shall enter an applicable rate in the Rate Column of the Schedule of Quantities for each scheduled item. He shall also enter an applicable sum in the Amount column for each scheduled item. The Contractor will not be paid for items against which no rate or lump sum has been entered in the tender, as it is assumed that the Contractor does not wish to receive payment for any such work.

Should the Tenderer group a number of items and tender one lump sum for such group of items, this single lump sum shall apply to that group of items and not to each individual item.

Should the Tenderer indicate against any item that compensation for such item is included in another item, the rate for the item included in another item shall be deemed nil.

The Tenderer shall fill in a rate against all items where the words "rate only" appear in the Amount column, which rate will constitute payment for work which may be done in terms of this item. Such "rate-only" items are used where it is estimated that little or no work will be required under the item or where the item is to be considered as an alternative to another item for which a quantity is given.

A tender may be rejected if any rates or lump sums in the Schedule of Quantities are, in the opinion of the Employer, unreasonable or out of proportion.

10. The Tenderer is at liberty to insert a rate of his own choosing for each item in the Schedules; in this regard his attention is drawn to the fact that the Contractor has the right, under various cir-cumstances, to payment for additional works carried out and that the Engineer is obliged to base his assessment of the rates to be paid for such additional work on the rates inserted in the Schedules by the Contractor.



11. Errors of extension and addition as entered in the Tender will be corrected by the Employer in determining the Accepted Tender Value; but rates shall be binding.

12. Payment based on the rates tendered in this Schedule of Quantities shall cover all the services and incidentals included in the Works covered by the Contract and shall be made in accordance with the General Conditions of Contract, the Special Conditions of Contract, the Specifications and Drawings and the Agreement pertaining to the Contract.

13. The Contract Price for the completed Contract shall be computed from the actual quantities of authorised work done to the satisfaction of the Engineer, valued at rates tendered against the respective items in the Schedule of Quantities and shall include such authorised Provisional Sums and items of extra work as have become payable in terms of the Contract Documents.

14. Where the Contractor is required to furnish detailed drawings and designs or other information in terms of the Contract Documents, all costs thereof shall be deemed to have been provided for and included in the unit rates and sum amounts tendered for the items scheduled in the Schedule of Quantities, and separate additional payments will not be made.

15. The Tenderer must price each item in the Schedule of Quantities in BLACK INK.

16. Value Added Tax shall be excluded from the rates and sums tendered for the various items of work included in the Schedule of Quantities.

Value Added Tax shall be entered as a single item, calculated at 14% on the total tendered amount, as provided for in the Summary of Schedules- Part 5.4.

17. The approximate expected value of works as set out in the Appendix to the Tender, is to provide the tenderer with a basis for determining whether or not he should submit a tender. The individual rates tendered for all work to be done or material to be supplied shall not be adjusted if the actual contract price for the completed contract is different from the approximate expected value of the works, or for any other reason, but shall remain fixed for the period of the contract.



2 SCHEDULE OF RATES


Equipping of Boreholes Page (108)Part 1 2 3 4 5 6 7 8 9 Contract Guarantee & Agreement Pro-formas



PART 8 CONTRACT GUARANTEE AND AGREEMENT PRO-FORMAS




1 GUARANTEE FOR EXECUTION OF THE CONTRACT.......................................................1

2 CONTRACT AGREEMENT..................................................................................................1



1 GUARANTEE FOR EXECUTION OF THE CONTRACT

TO: ________________ MUNICIPALITYP O BOX ____________________________

Sirs

RE: SURETY IN RESPECT OFCONTRACT NUMBER : _________________FOR CONSTRUCTION OF : EQUIPPING OF BOREHOLES

CONTRACT SUM : R..................................................................

CONTRACTOR : ....................................................................

I/We, the undersigned,

...........................................................................................................................................................

and

...........................................................................................................................................................

in my/our respective capacities as

...........................................................................................................................................................

and

...........................................................................................................................................................

of

...........................................................................................................................................................

(hereinafter referred to as the "Company")

address:

.............................................................................

.............................................................................

.............................................................................

and acting on behalf of the Company do hereby bind the said Company to _______________ Municipality as surety or co-principal debtor in solidum for the due performance, fulfilment and completion of the aforesaid contract by the Contractor and we hereby undertake, on behalf of the Company to pay on demand to you at the above-mentioned address



any loss or damage which the _________________ Municipality may sustain

as well as any penalties or claims and legal costs to which the ________________ Municipality may become entitled by reason of the non-fulfilment or breach by the Contractor of the terms of the aforesaid contract, always provided that the liability of the Company under this guarantee shall not exceed the sum of R _________________ amount in words __________________________________________________________ the said sum being 10 % of the accepted tender value.

AND on behalf of the Company I/We do hereby renounce all benefits from the legal exceptions non numeratae pecuniae, non causa debiti excussionis et divisionis and all other exceptions which might or could be pleaded against the validity of this guarantee, the meaning whereof we declare ourselves to be fully acquainted with.

AND, on behalf of the Company, I/we agree that this guarantee shall be irrevocable and shall remain in full force and effect during the term of the aforesaid contract either until the date of issue of the Certificate of Completion for the whole, or the final portion of the Works, or until any liability of the Contractor which has arisen before the date, in terms of the Conditions of Contract has been satisfied, whichever is the later.

It is further agreed and declared

that all admissions and acknowledgements of indebtedness by the Contractor shall be binding on the Company,

that the indebtedness of the Contractor to the _________________ Municipality shall at all times be determined and proved by a written certificate of the (Acting) Municipal Manager of the _________________ Municipality or such other person acting in such capacity, that such certificate shall be binding on the Company and be conclusive proof of the amount of the Company's indebtedness and will be valid as a liquid document against the Company in a competent Court,

that such certificate shall be binding on the Company and be conclusive proof of the amount of the Company's indebtedness and will be valid as a liquid document against the Company in a competent Court,

that the ____________________ Municipality shall be entitled without prejudice to rights hereunder to give time to and compound with, release from liability or make any other arrangement with the Contractor, its assigns, liquidators or judicial managers

and that any such actions shall not exonerate the Company from its liability hereunder.



The Company chooses as its domicilium citandi et executandi and for the purpose of the service of all notices and legal processes the following address:

...........................................................................................................................................................

...........................................................................................................................................................

...........................................................................................................................................................

THUS DONE AND SIGNED AT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . on this . . . . . . day of . . . . .

. . . . . . . . . . . . . . . .2001

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .____________________________________ ________________________________________on behalf of the Company FULL NAMEin the presence of the following:AS WITNESSES : 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

FULL NAME2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

FULL NAME

Affix the appropriate revenue stamp and cancel

with signature and date



(THE CONTRACT)2 CONTRACT AGREEMENT

Employer:____________________ Municipality Contractor:_____________________P O BOX _______ _____________________ ____________________ ______________________________

WHEREAS

1. The Employer is desirous that the Works included in the Contract should be supplied, delivered, constructed, completed and maintained by the Contractor; the Parties and the Contract being as defined above; and

2. The Employer has accepted a tender by the Contractor for such supply, deliver , construction, completion and maintenance of the Works.

NOW THIS AGREEMENT WITNESSETH as follows:

1. In this Agreement words and expressions shall have the same meanings as are respectively as-signed to them in the Conditions of Contract that are referred to below.

2. All the documents that are listed in the SCHEDULE OF DOCUMENTS (Part 1 of Volume 1 of the tender and contract documents) shall be deemed to form and to be read and to be construed as part of this Agreement.

3. In consideration of the payments that will be made by the Employer to the Contractor for completed work as hereinafter mentioned, the Contractor covenants with the Employer to supply, deliver, construct, complete and maintain the Works in conformity in all respects with the provisions of the Contract.

4. The Employer hereby covenants to pay to the Contractor, in consideration of the supply, delivery, construction, completion and maintenance of the Works, the Contract Price at the times and in the manner prescribed by the Contract.

IN WITNESS whereof the Parties described above have set their hands and seals (if any) in the presence of the subscribing witnesses:



Employer:Name :Capacity: ____________________Date : Signature

Witness No 1:Name : ____________________Date : Signature


Contractor:Name :Capacity: ____________________Date : Signature




Equipping of Boreholes Page (115)Part 1 2 3 4 5 6 7 8 9 Tender Forms



PART 9 TENDER FORMS




1 ALTERATIONS BY TENDERER...........................................................................................1

2 WORKS PREVIOUSLY EXECUTED....................................................................................1

3 PRESENT COMMITMENTS.................................................................................................1

4 SUPERVISORY PERSONNEL.............................................................................................1

5 LOCAL LABOUR CONTENT................................................................................................1

6 LABOUR UTILISATION........................................................................................................1

7 MAN DAYS..........................................................................................................................1

8 COMPLIANCE WITH OHSA (ACT 85 OF 1993)...................................................................1

9 PLANT AND EQUIPMENT...................................................................................................1

10 SUB-CONTRACTORS.........................................................................................................1

11 BRIEFING MEETING CERTIFICATE...................................................................................1

12 AUTHORITY OF SIGNATORY.............................................................................................1

13 FORM OF TENDER.............................................................................................................1



1 ALTERATIONS BY TENDERER

Should the Tenderer desire to make any departures from or modifications to the General or Special Conditions of Contract, the Specifications, the Schedule of Quantities or the Drawings, or to qualify his tender in any way, he shall set out his proposals clearly hereunder or alternatively state them in a covering letter attached to his tender and referred to hereunder, failing which the tender will be deemed to be unqualified.

Page Clause or Item

Signature of Tenderer.................................................. Date.....................................



2 WORKS PREVIOUSLY EXECUTED

The following is a statement of major works successfully executed by myself/ourselves in recent years:

Client Consulting Engineer * Nature of Works

Value of Works

Duration and Completion

Date

Failure to detail the required information, shall signify that the tender is submitted by an inexperienced tenderer.

Date : ....................................... Signature of Tenderer : ..............................................

* State firm, contact person and telephone number



3 PRESENT COMMITMENTS

Employer and Contract

DescriptionContract Amount Duration and

Completion DateConsulting Engineer

Nature of Works

Date : ....................................... Signature of Tenderer : ..............................................

* State firm, contact person and telephone number



4 SUPERVISORY PERSONNELPREVIOUS EXPERIENCE ON WORKS OF A SIMILAR NATURE DURING THE LAST FIVE YEARS

Name Position (Current) Service (Years)Name of Project

And year executed

Value of Works Position Occupied

Contractor's Representative

Contractor's Foreman

If not engaged on site full time list percentage of working time these persons will be engaged on site :

Contractor's Representative: .................................. per cent Contractor's Foreman :.....................

Signature of Tenderer ............................................... Date .............................



5 LOCAL LABOUR CONTENT

Description Task Estimated No

Local Labour

Imported Labour

Training of Local Labour

The above statement will be assessed as part of the adjudication of tender.



6 LABOUR UTILISATIONLabour Categories - Definitions

NOTE: These definitions serve as a guideline to complete the following table and will in no respect alter the Project Specifications or Standardised Specifications

6.1 General Foreman / ForemanAn employee who gives out work to and directly co-ordinates and supervises employees. His duties encompass any one or more of the following activities :

6.1.1 Supervision;6.1.2 maintaining discipline;6.1.3 being responsible to the Contractor for efficiency and production for his

portion of the works; and6.1.4 performing skilled work, whether in an instructional capacity or otherwise.6.2 Charge hand

An employee engaged in any one or more of the following activities :

6.2.1 Being primarily employed in a supervisory capacity, but who may also be doing the work of an artisan;

6.2.2 giving out work to other employees under his control and supervision;6.2.3 maintaining discipline; and6.2.4 being directly responsible to a general foreman or foreman or the

Contractor or the Contractor's representative for efficiency and production for his portion of the works.

6.3 ArtisanAn employee who has successfully completed all prescribed courses at a practical institutional training centre for a particular trade and who has successfully completed the on-site period of training as prescribed and who has successfully passed the prescribed trade tests.

6.4 Team LeaderAn employee engaged in any one or more of the following activities :

6.4.1 Being employed in a supervisory capacity, but who may also be doing the work of a skilled person;

6.4.2 giving out work to other employees under his control and supervision;6.4.3 maintaining discipline;6.4.4 being directly responsible to a Charge hand or a foreman or a general

foreman or the employer's authorised representative for efficiency and production for his portion of the works.

6.5 Skilled EmployeeAn employee engaged in an ancillary trade or an assistant artisan.

6.6 Semi-Skilled EmployeeAn employee with any specified skills, an apprentice or a trainee-artisan.

6.7 Unskilled EmployeeAn employee engaged on any task or operation not specified above.

6.8 Imported EmployeePersonnel permanently employed by Contractor (Refer to clause PS9.1)



6.9 Local EmployeeTemporary workforce employed through Labour Desk as specified in clause PS 9.2.



7 MAN DAYS

CATEGORIESNo OF MAN DAYS

NON-LOCAL LOCAL

1. Site Agent/Contracts Manager

2. Foreman/General Foreman

3. Charge hands

4. Artisans

5. Operators/Drivers

6. Clerks/Storeman

9. Team Leader

8. Skilled Labour

9. Semi-skilled Labour

10. Unskilled Labour



8 COMPLIANCE WITH OHSA (ACT 85 OF 1993)

_________________ MunicipalityP O Box _____________________________

Sir

I/WE undertake to acquaint myself/ourselves with all relevant provision of the Occupational Health and Safety Act, 1993 (Act 85 of 1993) and the regulations promulgated in terms thereof.

I/WE the undersigned hereby undertake to comply with all relevant duties, obligations and prohibitions in terms of the Occupational Health and Safety Act, 1993 (Act 85 of 1993) and its Regulations.

I/WE further hereby accept sole liability for such due compliance with the relevant duties, obligations, prohibitions, arrangements and procedures, if any, imposed by the Occupation Health and Safety Act, 1993 (Act 85 of 1993) and Regulations for which I am/we are responsible.

I/WE shall notify the Employer of any investigations, complaint or criminal charge which may arise as a consequence of the provision of the Occupational Health and Safety Act, 1993 (Act 85 of 1993) and Regulations, pursuant to work performed in terms of this Contract.

SIGNED AT . . . . . . . . . . . . . . . . . . . . . . THIS . . . . . . . . DAY OF . .. . . . . . . . . . . . . . . . . 20. . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . WITNESS

. . . . . . . . . . . . . . . . . . . . . . . . . . WITNESS

_________________________________________Signature of person authorised to sign the tender

___________________________________________CAPACITY OF SIGNATORY



9 PLANT AND EQUIPMENT

9.1 Major Plant and Equipment available for this Contract :

Quantity Size, Description, Capacity, etc.

9.2 Major Plant and Equipment that will be acquired for this contract if my/our tender is accepted :

Quantity Size, Description, Capacity, etc.

............................................................ ............................................................Signature of Tenderer Date



10 SUB-CONTRACTORS

10.1 Proposed Subcontractors to be used for this Contract :

Company Portion of Contract Approx. Value

Signature of Tenderer ..........................................................Date ...........................



11 BRIEFING MEETING CERTIFICATE

As required by Clause 3(2) of the General and Special Conditions of Contract and Clause 3 of the Conditions of Tender, I/we certify that I/we have visited the site of the Works and attended a Briefing Meeting on the date certified below.

I/we further certify that I am / we are satisfied with the description of the Work and the explanations given by the Engineer at the Briefing Meeting.

______________________________ ____________________Signature of Tenderer Date

Site Visit

This will certify that ___________________________________________________________

representing ___________________________________________________________________

attended a Briefing Meeting for this Contract on ________________200__

_______________________________(Signed)For the Engineer



12 AUTHORITY OF SIGNATORY

With reference to Clause 7 of the Conditions of Tender, I/we herewith certify that this tender is submitted by : (Mark applicable block)

a company, and attach hereto a certified copy of the required resolution of the Board of Directors

a partnership, and attach hereto a certified copy of the required resolution byall partners

a close corporation, and attach hereto a certified copy of the required resolution of the Board of Officials

a one-man business, and attach hereto certified proof that I am the sole owner of the business submitting this tender

a joint venture, and attach hereto

- an notarially certified copy of the original document under which the joint venture was constituted; and

- certified authorisation by the participating members of the undersigned to submit tenders and conclude contracts on behalf of the joint venture

Signature of Tenderer _______________________________

Date _______________________________



12.1 APPENDIX TO TENDER

Clause

Special Conditions 1(1)(t) See Part 3.

Address of Employer 1(2)(b) ________________ Municipality P O Box ______________________________

Address and Tel no of Engineer 1(2)(b) ________________________________________

Tel (____) ___________

Address & Tel no. of Contractor 1(2)(b) __________________________________________________________________

Time to enter into agreement 5 14 days

Amount of Suretyship 10 R____________

Time within which 10 21 days from Letter of acceptancesuretyship to be provided

Duration of suretyship 10 Until issue of Certificate of Completion

Commencement of work 12(1) Within 14 days from Engineer’s instruction/ Commencement Date

Programme to be furnished within 15(2) Within 7 days from Site Hand Over/ Commencement Date/ Engineer’s instruction (Programme per instruction to be submitted)

Special risks insurance 38(1)(b) Not required

If required, to be arranged by 38(1)(b) Employer

Amount of Special Risks Insurance 38(1)(c) N/A

Minimum amount of Liability Insurance 38(1)(c) R 1 000 000 per event, the number of events being unlimited

Day work allowance 40(4)(b) Nil percent on the gross remuneration of the workmen and



foremen actually engaged. 15% on net cost of materials actually used.

ClauseSpecial non-working days 41 South-African Statutory Holidays

Time for Completion of the Works 45(1) One year from date of appointment

Amount of penalty for delay 46(1) R______ Per Calendar Day/per instruction

Penalty for not utilising Labour Intensive 46(2) 20 percent of value of worksMethods

Percentage advance on materials not 52(1)(e) 80 percentyet built into the Permanent Works

Percentage retention 52(3) 10 percent

Limit of retention money 52(3) 10 percent of work not Handed over and 5% of work Handed over

Retention Money Guarantee 52(6) Not acceptable

Delivery of Contractor's final statement 52(9) Within 21 days after certified date of Completion of Works

Defects Liability Period 56(1) 12 months

Disputes to be referred to 61(3)/61(4) Arbitration

Contract Price Adjustment 49(2)

Co-efficients for calculating the Contract Price Adjustment Factor

x = 0,15

“C” shall be the Consumer Price Index for Mafikeng

Direct Cost Variations 49(3)Special materials, items or portions Method Price for base month

__________________________ _______ _________________

__________________________ _______ _________________

__________________________ _______ _________________

Period of validity of tender COT 9 90 days



Signature _________________________________

on behalf of _________________________________

Address _________________________________

_________________________________

Date _________________________________

Bankers Details :

Bank Manager _________________________________

Bank Name _________________________________

Branch _________________________________

Account No _________________________________



13 FORM OF TENDER

Contract No : Contract ________________

Short Description of Works : Equipping of Boreholes

To : _____________________ Municipality

Gentlemen

Having examined the Drawings, Conditions of Contract, Specifications and Schedule of Quantities for the above named Works, I/we offer to manufacture, complete, deliver and maintain the whole of the said Works in conformity with the Drawings, Conditions of Contract, Specifications and Schedule of Quantities, save as amended by the "Alterations by Tenderer" (if any) attached hereto, for the sum of

R.................................................................................................................................................

In words ...........................................................................................................................................

..................................................................................................................................................................

.

or such other sums as may be ascertained in accordance with the Contract.

In the event of there being any errors of extension and/or addition in the priced Schedule of Quantities, I/we agree to their being corrected, the rates being taken as correct.

I/we undertake to complete and deliver the various parts and the whole of the Works comprising the Contract within the time(s) stated in the Appendix hereto.

If my/our tender is accepted, I/we will, when required and within the time stipulated, provide a guarantee of a bank or insurance company (to be approved by you) to be jointly and severally bound with me/us in a sum not exceeding 10% (ten per cent) of the Accepted Tender Value, for the due performance of the Contract under the terms of a bond in the form annexed hereto as Part 6.1.

The surety I/we propose will be issued by .................................................................................

I/we have studied the Conditions of Tender issued herewith and agree to be bound by same for the period of validity set out in the Appendix hereto.

Unless and until a formal Agreement is prepared and executed, this Tender, together with the written acceptance thereof by yourselves or by the Engineer acting on your behalf, shall constitute a binding Contract between us.



I/we understand that you are not bound to accept the lowest or any tender you may receive.

I/we are Gentlemen

Yours faithfully

Signature.............................................................................................................................................

on behalf of................................................................................................................................

Address .....................................................................................................................................

............................................................................................................................................

Date ......................................................................................................................................

END OF PART 9


Equipping of Boreholes Page (135)Part 1 2 3 4 5 6 7 8 9 10 Tender Administration



PART 10 TENDER ADMINISTRATION


Equipping of Boreholes Page (136)Part 1 2 3 4 5 6 7 8 9 10 Tender Administration

SCHEDULE OF PARTICULARS

[Insert any particular equipment required]


Equipping of Boreholes Page (137)Part 1 2 3 4 5 6 7 8 9 Administration


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