PROSEDUR KELULUSAN SISTEMPEMBETUNGAN

April 2010

Ir. Sohaimi b. Kling

Section 45-Provisions relating to Sewerage System &Services:

(1) No person shall construct, alter, modify, disconnect or close-upsewerage system, septic tank without approval in writing by theCommission

(2) Rules to set out the standards as to type and extend of sewerage worksto be first approved by the Commission

(3) A person shall submit information & document in a form and mannerand within the time as may be provided in the Rules

(6) In granting approval, the Commission may impose such terms &conditions as it deems fit

(7)A person commit offense upon conviction (fine <RM500,000 / < 5 yearsprison or both); (a) sewerage works without having approval first in writing(b) sewerage works not in accordance with approved plans & specs or (c)makes alteration to approved plans & specs

(8) The Commission may (a) direct rectification works/ restore/ to conditionbefore construction or (b) cease construction and comply to requirement

(14) Offense –Continue work after directed to cease – fine <RM200,000/ <

WSIA 2006- Act 655

Agensi Perakuan

Merujuk kpd WSIA 2006 (Akta 655):-

Seksyen 174 (1)- Suruhanjaya boleh mendaftarkanagensi perakuan bagi maksud :-(a) meluluskan pelan, spesifikasi atau reka bentukterperinci berkenaan dengan pembinaan sistembekalan air , sistem pembetungan, tangki septik,perpaipan pembetungan…

Seksyen 174 (2)-Sesuatu kelulusan olehagensi perakuan berdaftar hendaklah disifatkan

sebagai kelulusan oleh SPAN..

• Approving Authority– SPAN , under the WSIA 2006, is the approving

authority for any sewerage system.

• Certifying Agency- appointed by SPAN to examine all sewerage

proposals, make recommendations in meetingsewerage needs of the development and assignedto inspect construction and recommend for CF.

Roles And ResponsibilitiesRoles And Responsibilities

PERLANTIKAN IWK SEBAGAIAGENSI PERAKUAN PEMBETUNGAN

IWK telah didaftarkan sebagai Agensi Perakuan Pembetungan oleh SPAN sejak1/1/2008 bagi meluluskan pelan dan pembinaan sistempembetungan dan tangki septik.

SKOP PERKHIDMATAN AGENSI PERAKUAN :

1. Mengkaji cadangan perancangan sistem pembetungan.

2. Mengkaji cadangan rekabentuk sistem pembetungan.

3. Mengadakan pemeriksaan perantara sistem pembetungan.

4. Mengadakan pemeriksaan terakhir dan memberi suratpengesahan bagi tujuan pengeluaran syor sijil kelayakanatau perakuan siap dan pematuhan.

5. Mewakili SPAN di pelbagai mesyuarat agensi.

6. Menjalankan tugas-tugas lain yang diwakilkan.

• Section 46 – Requirement for developer toconstruct sewerage system:

– Developer shall be required to constructsewerage system/ part thereof in accordancewith requirement set in plan and specsapproved by the Commission.

WSIA 2006- Act 655

DOKUMEN & RUJUKAN BAGIPENGENDALIAN TUGASAGENSI PERAKUAN

1. Garispanduan, Jilid I(Polisi Sistem Pembetungan)

2. Garispanduan, Jilid II(Prosedur KerjaPembetungan)

3. Garispanduan, Jilid III( Rangkaian Paip

Pembetungan & StesyenPam)

4. Garispanduan, Jilid IV( Logi PengolahanKumbahan)

5. Garispanduan, Jilid V( Tangki Septik)

6. Piawaian Malaysia,MS 1228.( Rekabentuk &Pemasangan SistemPembetungan)

7. Akta IndustriPerkhidmatanAir 2006

8. Akta Keselamatan &Kesihatan Pekerjaan(OSHA 1994)

9. Akta Kualiti AlamSekeliling(EQA 1974)

Guidelines-sets the minimum standard for certification of sewerageworks for developers and their consulting engineers

Qualified Person

-Person responsible to the design, construction and overallquality of completed sewerage work

-Have sufficient sewerage technical expertise to ensuresewerage works are properly engineered during designand construction.

JENIS SISTEM PEMBETUNGAN

• Tangki Septik Individu

• Sambungan Paip Pembetungan

• Rangkaian Paip Pembetungan

• Stesyen Pam Kumbahan

• Logi Pengolahan Kumbahan

PROSES KELULUSAN PERANCANGANSISTEM PEMBETUNGAN

Penyemakan perancangan pembetungan akan meliputiperkara-perkara berikut:

1) Salinan surat dari Juruperunding yang Bertauliah.

2) Borang SSA/PDC/1 yang lengkap (+senarai-semak).

3) Pelan susunatur yang mengandungi pelan kunci & lokasi.

4) Perkiraan penduduk setara (PE) untuk keseluruhanpembangunan.

5) Laporan kejuruteraan* (pembangunan >150 PE).

6) Tandatangan pemilik pada setiap pelan cadangan.

7) Tandatangan pihak Juruperunding pada setiapdokumen.

*Laporan kejuruteraan hendaklah meliputi deskripsi cadangan pembetungan, pembangunansediada di sekeliling, topograpi, sungai di mana efluen dialirkan dan sebagainya.

Planning Approval Process

• Initial consultation with CA.

• Preferably before submitting for layout approval.

• To determine existing sewerage facilities.

• To enable the owner/consultant to establish theappropriate sewerage works for submission andapproval.

The Engineering report consists of :

• Project brief• Sewerage proposal• PE derivation• In line with catchment strategy• Adjacent lot development• STP area and buffer zone• Siting area• Effluent discharge & Water catchment

SEWERAGE WORKS PLANNINGAPPROVAL

Review and approval ofplanning submission

• Planning submission covers :1) Sewerage system > 150PE (commonly for complete

system, sewer network, NPS and STP)

2) Sewerage system < 150PE (commonly for septictanks and connection)

PROSES KELULUSAN REKABENTUKSISTEM PEMBETUNGAN

Penyemakan permohonan rekabentuk pembetungan hanyaakan diproses selepas kelulusan permohonan perancangandiperolehi dan ianya meliputi perkara-perkara berikut:

1) Salinan surat dari Juruperunding yangbertauliah.

2) Surat kelulusan perancangan dari Pihak BerkuasaTempatan.

3) Borang SSA/PDC/2 yang lengkap (+senarai-semak).

4) Pelan-pelan rekabentuk terperinci.

6) Laporan dan kiraan kejuruteraan.

7) Tandatangan pemilik pada setiap pelan cadangan.

8) Tandatangan dan cop perakuan oleh JuruteraBertauliah pada dokumen.

Appendix A

Figure A.4 : Standard Precast Concrete Manhole with 4 way Base Arrangement( Ground level to top of benching 2.5 to 5 metres)

1. All precast manhole component joints shall be filled with 1:3 cement mortar mix.

2. Rocker pipes shall be 600 long for sewers up to 300 diameter and 760 long for larger

diameter sewers.

Standard Manhole C.I Or D.I Frame And Cover To

DGSS Specification including Figures A.1 / A.2

Fill With 1 : 3 Cement Mortar Mix

Precast R.C. Taper Top painted internally

with 2 layers of coal tar epoxy

Precast R.C. Chamber Ring with 12min. internal lining of high aluminacement mortar

Cast Insitu Concrete Surround

(150 min Thickness)

Grade 20/20 Conc. Base

Invert Elevation Of Manhole50Thk. CementitiousBlinding

600

Concrete Benching

1:12150 min

200 min -500 max

300 Min.

PrecastR.C. Make Up Rings As RequiredTo match Top Of Manhole Cover To

Finished Surface Level

"Rocker" Pipe

600Max

450 Min. -600 Max.To Top Step

Form channel using 40 Thick HighAlumina Cement Mortar where change indirection or diameter occurs throughmanhole or there are 2 or 3 incomingsewers

Appendix A

Vacuum Sewer

VacuumStation

Sewerage Treatment Works

Vacuum sewerage system

Gravity

Drain CollectionChamber

Service

ConnectionVacuumsewer

House connection

InspectionChamber

Vacuum sewer profile with sewer inspection point

Gravity Inlet

Emergency Overflow

Rising Main

Forwarding Pump Sewage

Vacuum Sewer

Vent

Control

Panel

VacuumPumps

VacuumSewers

Rising Main Forwarding PumpsVacuum Vessels

Vacuum Station withHouse Collection Vessel

Where Required

Vacuum reservoirmoisture removal tank

Figure A.16 : Vacuum Sewerage System, House Connection and exa mple ofVacuum Station

Appendix A

Ventilation InletDuct

Rising Main

DrainageSump WithSump Pump

Extractor fan

Travelling GantryCrane

Motor

Coupling

Control Panel WithAmmeter, IsolatorSwitch And HoursRun Meter

Shaft WithMesh Guard

Bracket

GRP VentilationInlet Duct

Pump

FlexibleCoupling

Sluice Valve

Check ValveReducer

Concrete Plinth

Alarm Level

Top Water LevelBottom. Water

Level

ScreenMechanism

Skip ToremoveScreenings

VentilationDuct Control

Gates

MechanicallyCleanedScreen

Extractor Fan

Incoming TrunkSewer

Control Panel

Hours Run MeterAmmeter

Isolator Switch

Motor

Coupling

Rising Main

Shaft

Gland

Impeller

Auxillary Suction Pipe

Suction Valve

Duck Foot Bend

Access Cover

Volute Case

Non -Return Valve

Components Of A Typical Pump Installation

DeliveryValve

Figure A.15 : Typical Details of Dry Well Pump Station

Design criteria for sewer network

Drawings• Layout

– To indicate MH no., type of MH, type of pipe andsize, gradient and length of pipe, invert level anddepth of MH

• Longitudinal section– Ground level, invert level, depth, distance– Gradient, pipe size, type of pipe, type of bedding,

type of MH– All utilities crossing

• Other detailing –refer Guideline vol.3

• Details design for STP shall include;

- Hydraulic design calculation,

- process design,

- Equipment sizing

- complete with clauses from relevant standards,

- SI report,

- material type, etc.

DESIGN APPROVAL FOR STP

Inspection And Testing

•The Qualified Person is fully responsible to the designconstruction and overall quality of works.

••The QP shall be responsible to comply with allThe QP shall be responsible to comply with allrequirements for testing in accordance to relevantrequirements for testing in accordance to relevantGuidelinesGuidelines

•• When any works are ready for inspection, thedeveloper shall inform CA via Form SSA/PDC/7

Intermediate Inspection - sewerline

• All work shall not be covered up until SPAN’s authorisedperson (CA) has conducted inspection at the agreed dateand time

• The Qualified Person shall ensure that all equipment,product and system installed at the work are from theSPAN approved list

• All sewer and ancillary works shall be tested andinspected by the QP to ensure the pipes are laid correctlyaccording to the approved design and plan and otherregulatory requirements.

Sewer-line Inspection and Testing

• Test for sewer:– Leakage Test Straightness, Obstruction and Grade Test– CCTV inspection– any other testing and method approved.

• Test may be conducted at random at anysection of sewer and ancillary works

• QP to carry out leakage test and submitendorsed report to CA

• CA shall determine selection of sewers tobe inspected

• The Qualified Person must ensure all work arein accordance to approved design & drawings.

• All works shall be COMPLETED and in functionalcondition when applying for final inspection.

Submissions for Final Inspection

Final Inspection Requirement

• Qualified Person (QP) to submit to CA the following:

- Form SSA/PDC/8- Checklist for Final Inspection -Checklist PDC 8a- Related Checklist PDC 8b/c/d- STP & NPS -Checklist PDC 8e & 8f- Copy of Sewerage Works Approval- A3 plans indicating related works under construction- Copy of valid contractors license

• Developer to carry out remedial works fordeficiencies and/or unsatisfactory quality ofworks identified by SPAN’s Authorised Person

• CA may request for re-inspection due to badworkmanship

• CA may withhold recommendation for CFwhen the works deemed unfit and/ or lead tosafety/ health risk.

FINAL INSPECTION

•When sewerage system( network, NPS andSTP are in full compliance to Guidelines andapproved drawings, CA shall recommend forCF to LA

•Owner to provide letter ofundertaking for the transferof STP and/PS land title tothe Government.

FINAL INSPECTION / CF

ISU

1. Keperluan sistem pembetungan tidak dipatuhisepenuhnya semasa mengemukakanpermohonan.

2. Ulasan yang dikeluarkan tidak dipinda semasapermohonan- semula.

3. Kedudukan logi tidak mengambilkira kesesuaianberdasarkan kriteria teknikal, persekitaran dansensitiviti penduduk berdekatan.

4. Pembinaan sistem pembetungan tidakmengikut pelan yang diluluskan.

5. Memastikan agar jururunding yangberkelayakan dibenarkan mengemukakanpermohonan sistem pembetungan.

Section 47 - the developer to hand over sewerage systemof new development to Service Licensee:

Developer of new development & within service areaupon issuance of CC by the QP, handover the seweragesystem to SL .

SL shall accept the sewerage system after SL is satisfiedthat the system meet requirement set out in approvedplans, specification and standards.

Upon Hand-over, SL to operate & maintain.

Owner of the land to provide access for O&M.

WSIA 2006

CONCLUSION

• Wastewater engineering is a specialised field,proper engineering experience and exposures.

• Structured long-term technical training is essentiallocal sewerage industry.

• Engineers to keep abreast with changes andchallenges.

TERIMA KASIH