Checklist GSR612(E)

Check list for Third Party Conformity Assessment for CGD Networks

1 Name of the CGD entity :

2 Address for communication

3 Details of Geographical area:

Name of City/District/ Area Geographical

area

Total pipeline

network

(in sq km) (in km)

Domestic Industry Commercial CNG

Steel:

PE:

Observations Remarks4 Total no. of CGS :

5 No. of Pressure regulating Installations/DPRS (excluding cutomer owned IPRS)

6 Source/sources of Supply of Gas :

7 Maximum operating pressure of the network (Primary, Secondary and Tertieary)

8 No. of mainline isolation valves

9 No. of major crossings (river)

10 No. of cased crossings - Railway/Highways

11 No. of CP stations (TR units)

12 Nearest Facilities

a. Fire station

b. Police station

c. Hospital/Medical

d. Major Industries

13 Is the installation layout with interdistances for CGS available

14 Does the above layout confirms to PNGRB T4S for CGD networks, Table-1

15 Power system details for CGS

a. Transformer rating & type

b. HT/LT breaker Type and Rating

c. DG set details

16 Communication system details from Control room to field locations Generic

Verification of

adequacy of

communincation

a. Telephone

b. VHF / Walkiee Talkie

c. CCTV/Others

Total No. of customers and CNG stations

1

Check list for Third Party Conformity Assessment for CGD Networks

17 Whether following licenses have been obtained

a. Environment Pollution Control Board for Air and Water

b. Weights and Measures approval certificate for consumer meters (Alternatively

verification of PNGRB T4S referenced standard (like EN or OIML)

Verification from

records

c. HF/VHF license

d. Clearance from electrical authorities

e. Statutory approval from local authorities

18 Whether following mannuals/standards are available with the entity

a. EPA 1986 and rules

b. Weights and measure rules Act

c. Operating mannual including start up, shut down and emergency Response and

disaster management plan

d. safety mannual

e. PNGRB Act and other documents as specified in T4S

f. codes to which pipeline has been designed, constructed and maintained

g. Equipment manufacturers mannuals for all equipments

19 Whether risk analysis of the facility has been carried out and recommendations

implemented

20 Whether adequate safety devices / interlocks (like SSV, SRV) have been provided,

tested and documented. Major safety interlocks to be mentioned.

Verification from

records for CGS

and DPRS

21 Whether lines have been painted and separate colours have been provided for

different services

Gas- Golden

Yellow

Water- Green

Air- Blue

22 Whether list of contact persons have been displayed with telephone numbers

23 HSE management system consisting visitors safety brief, accident reporting, do &

don't for customers, ERDMP in place.

2

Check list for TPCA- Appendix-I

Sl. No. List of Activity If No, Implementation

Plan

Time period for

Implementation

Status of Implementation Remarks

1 Verify whether the Pressure Reduction skid CGS installed having

(Active/monitor combination) with a minimum 50% redundancy

including slam shut valve for over-protection and creep relief

valve

Modification of skid 1 year

2 Verify whether the On-line odorization equipment designed to

minimise fugitive emissions during loading, operation and

maintenance

Automated odorization

systems to be used

1 year

3 Verify whether the Height of the vent minimum 3 meters above

working level

Increase height of vent 6 months

4 Verify whether the Gas detectors installed at critical locations Install gas detectors in the

CGS and District Pressure

regulating station

1 year

5 Verify whether Pressure reduction for DRS (active/ monitor

combination) skid installed with minimum 50% redundancy

including two safety devices at least one of then shall be a slam

shut valve for over pressure protection/under-pressure and inlet

and outlet isolation valve?

Modification/replacement 2 years

6 Verify whether Steel reinforced rubber hoses conforming to IS

9573 Type IV

Replacement of all rubber

hoses @ 50,000 per year

6 months

7 Verify whether the pipeline test records, Joint radiography and

cover available in the form of pipebook

To be submitted in stages 3 months

8 Verify whether the HSSE Management system in place To be implemented 6 months

9 Verify following records.....Emergency Repsonse Plan, Disaster

Management Plan and written emergency procedures for an

manned round the clock and equipped with effective

communication system and emergency vehicles fitted with

communication facilities, first aid equipment, fire extinguisher, gas

detectors, repair kits and tools, maps, plans, material safety data

sheet, etc. at its disposal.

Preparation of Emergency

repsonse and disaster

management plan

(ERDMP) as per PNGRB

Regulation on ERDMP

2009

6 months

3

Check list for TPCA- Sub Transmission PipelineSl. No. Parameters Details/Observations Remarks

1 Supply/ Source Point / tap-off point

2 Location of STPL GIS Records

3 Owner of STPL

4 Total length of STPL upto City Gate station (in kms) GIS records

5

Pipeline MOP and MAOP (in barg)

Random check from pressure

records

Schedule- 1A

6 Verification of piping materials and Equipment manufcatured to strandards listed in

Annexure-I and Annexure-II

From records

Schedule- 1B

7 Verify the Welding procedures and welder qualification procedure as per API 1104

8 Verify that all NDT including radiography examination performed. as per API1104

Schedule-1C

9 Check whether valve body, bonnet, cover and/or end flanges and fittings are not

made from Cast iron and ductile iron.

Random check of material test

records

Schedule-1D

10

Verify whether the minimum thickness of pipe constructed is 6.4 mm. If not, then

Quantative Risk Assessment is carried out and the risk level is reduced to ALARP.

From records

11 Verify whether the minimum cover requirements and clearances as per PNGRB

technical standard and specification, Table-3. Random check from Records

12 Veryfy whether the steel casing requirement at road/railways crossing as per

statutory requirement.

From records

13 Verify whether the Hot taps design and construction is carried out as per API

RP2201.

From records

14 Verify the test records post construction are in place. Random check from Records

Schedule-1E

15

Verify that the O&M procedure are developed and followed. O&M written document in place

16 Verify the mode of inspection followed by Entity like patrolling/ line walk/ any other

means?

From records

Schedule-1F

17 Verify there is a system in place for external corrosion protection. From records

18 Verify whether all records related to corrosion control are maintained

4

Check list for TPCA- CGSSl. No. Parameters Details/Observations Remarks

1 Gas Flow Rate

2 ANSI Pressure class (300#, 600#)

3 No. of CGS Attach separate sheet per CGS

4 Location(s) of CGS

5 Verification of Pipeline MOP and MAOP (in barg) Random check from records

6 Verify that the maximum gas velocity in piping does not exceed 20 and 40 m/s before

and after filter respectively under peak flow conditions.

Review Basis of Design

Schedule- 1A



From records

Schedule- 1B

8 Verify the Welding procedures and welder qualification procedure. as per API 1104


Schedule-1C




records

Schedule-1D

11 Whether CGS is installed with configuration specified in PNGRB technical standard

and specification, Table-1

as per Plot layout

12 Verify whether the provisions are made for venting, purging and draining of all

sections of pipework and equipment.

13 Whether the procedure for the electrical equipment / installations are in place and

electrical area classification is carried out as per IS 5572.

From records

14 Verify whether the adequate Instrumentaion and control system are in place. From records

15 Verify whether the pressure sound level does not exceed the limit prescribed by

Environmental Authorities or 110 dBA.

From records

Schedule-1E

16 Verify that the O&M procedure are developed and followed. O&M written document in place

Schedule-1G

17 Verify whether online odorisation equipment has been installed and maintenance is

done?

From records

18 Verify whether all controls are in place to ensure pre-detmined quantity of odorant

dosage.

Random check from records

5

Check list for TPCA- DRS/IPRS

Sl. No. Parameters Details/Observations Remarks

1 Gas Flow Rate

2 ANSI Pressure class (150#, 300#)

3 No. of PRI Attach separate sheet for each

4 Location of PRI(s)

5 Verification of Pipeline MOP and MAOP (in barg) Random check from records

6 Verify that the maximum gas velocity in piping does not exceed 20 and 40 m/s before and

after filter respectively at peak flow conditions.

Review Basis of Design

Schedule- 1A



From Records

Schedule- 1B

7 Verify the Welding procedures and welder qualification procedure. as per API1104


Schedule-1C

9 Check whether valve body, bonnet, cover and/or end flanges and fittings are not made

from Cast iron and ductile iron.


records

Schedule-1D

10 Check whether the DRS located belowground or aboveround? From Records

11 Verify whether the vent line is terminated at minimum height of 3 meters above the ground

level.

Random check from Records

12 Verify whether the aboveground DRS/IPRS is installed with proximity not less than 2

meters as per PNGRB technical standard

14 Verify whether the pressure sound level does not exceed the limit prescribed by

Environmental Authorities or 110 dBA.

From records

Schedule-1E


NOTES: Refer Schedule 1D of CGD technical standard

i.The consumer/customer, shall be responsible for ensuring the separation distances for

customer owned IPRS

ii.Customer IPRS installation shall be independently approved by certified third party agency

before the entity supplies the gas.

iii.Recertification shall be carried out once in 3 years.

6

Check list for TPCA- Steel Distribution Network


1 Verification of total length of Steel Distribution network (in kms) GIS Records

2 Verification of Pipeline MOP and MAOP (in barg) Random check from pressure records

3 Verify the maximum gas velocity in the pipeline network is maximum 30 m/s

under peak flow.

Use of pipeline simulation software

4 Verify if the Cathodic protection system is in place From records

Schedule- 1A

5 Verification of piping materials and Equipment manufcatured to strandards listed

in Annexure-I and Annexure-II

From records

Schedule- 1B

6 Verify the Welding procedures and welder qualification procedure as per API 1104

7 Verify that all NDT including radiography examination performed as per API1104. As per Records. In case non-availability

of 100% records, 5 nos. of joint will

undergo radiagraphy test on random

sample basis across the steel network.

Schedule-1C



Check from Material Test records

Schedule-1D

9 Verify whether the minimum cover requirements and clearances as per PNGRB

technical standard and specification, Table-3. Random check from Records

10 Verify whether the steel casing requirement at road/railways crossing as per

statutory requirement.

From records

11 Verify whether the Hot taps design and construction is carried out as per API

RP2201.

From records

12 Verify the test records post construction are in place. From Records

13 Verify whether the spacing between valaves on distribution mains are maintained

as per PNGRB technincal standard

GIS records

Schedule-1E


15 Verify the mode of inspection followed by Entity like patrolling/ line walk/ any other

means?

From records

Schedule-1F

16 Verify there is a system in place for external corrosion protection. Review from Records

17 Verify whether all records related to corrosion control are maintained

7

Check list for TPCA- PE Network


1 Verification of total length of PE Distribution network (in kms) GIS Records2 Verification of Pipeline MOP and MAOP (in barg) Random check from pressure

records

3 Verify the maximum gas velocity in the pipeline network is maximum 30 m/s under peak

flow.

Use of pipeline simulation

software

Schedule- 1A

4 Verification of piping materials and Equipment manufcatured Annexure-I and Annexure-II From records

Schedule-1C

5 Verify the PE fittings are as per ISO 8085 Part-3 / EN 1555-3. From records

Schedule-1D

6 Verify whether the minimum cover requirements and clearances as per PNGRB technical

standard and specification, Table-3. Random check from Records

7 Verify the procedure for Plastic pipe and tubings joints and connections is in place. From records

8 Verify the procedure for Hot taps installation is in place. From records

9 Verify the test records post construction is in place. From records

10 Verify whether the spacing between valaves on distribution mains are maintained as per

PNGRB technincal standard

GIS records or equivalent

records

Schedule-1E

11

Verify that the O&M procedure are developed and followed.

O&M written document in

place

12 Verify the mode of inspection followed by Entity like patrolling/ line walk/ any other means Review from Records

13 Verify whether any PE length exposed to atmoshpere.

14 Check whetehr the condition of transition fitting is safe.

8

Check list for TPCA- Industrial Consumers


1 Verification of total number of Connections (in nos.) GIS Records

2 Verification of Pipeline MOP and MAOP (in barg)

Schedule- 1A

3 Verification of piping materials and Equipment manufcatured to PNGRB technical strandards

and specifications listed in Annexure-I, Annexure-II and Annexure-IV

From records

Schedule-1C

4 Verify the PE fittings are as per ISO 8085 Part-3 / EN 1555-3. Random check from Material test

records

Schedule-1D



7 Verify whether the location of customer's meter and regulator installation are made safe

manner.

Random check from records

8 Verify whether the Gas service line is installed with depth of cover not less than 600 mm.


Schedule-1E

10 Verify that the O&M pprocedure are developed and followed. O&M written document in place

Schedule-1F

11 Verify there is a system in place for external corrosion protection. Review from records


i.The consumer/customer, shall be responsible for ensuring the separation distances for

customer owned IPRS

ii.Customer IPRS installation shall be independently approved by certified third party agency

before the entity supplies the gas.

iii.Recertification shall be carried out once in 3 years.

9

Check list for TPCA- Domestic and Commercial Consumers


1 Verification of total number of Connections (in nos.) GIS Records or Equivalent

records (like MIS, etc.)

2 Verification of Pipeline MOP and MAOP (in barg)

3 Verify that the maximum gas velocity is 15 m/s.

Schedule- 1A

4 Verification of piping materials and Equipment manufcatured to PNGRB technical

strandards and specifications listed in Annexure-I, Annexure-II and Annexure-IV

From records

5 Verification of steel reinforced rubber hose to IS: 9573 Type IV From records

Schedule-1C

6 Verify the PE fittings are as per ISO 8085 Part-3 / EN 1555-3. From records

Schedule-1D



9 Verify whether the location of customer's meter and regulator installation are made

safe manner.

Notes as below

10 Verify whether the Gas service line is installed with depth of cover not less than 600

mm.

Random check from

Records


Schedule-1E

12

Verify that the O&M procedure are developed and followed.

O&M written document in

place


i. Total 100 nos. houses will be checked, on random basis across the CGD, for the

varification of aboveground installations.

10

Check list for TPCA- CNG


1 No. of CNG stations Attach a sheet

incorporating all CNG

stations.

a. No. of Mother stations

a. No. of Daughter stations

a. No. of Online stations

2 Location of CNGs Separate map indicating

CNG stations

3 Compression Capacity (Total) From records

4 Verify whether the odorized gas is supplied to CNG stations

5 Verify whether the valid CCOE licence is in place for all CNG stations. Random check from

records

6 Varify whether all local authorities licences, like municipal commissioner, police

commissioner, are in place.

Random check from

records

7 Check whether the Training program for fillers is in place. Review from records

8 Is there system in place for regular work place inspections of sites? Review from records

9 Verify that Emergency response plan for CNG Stations in place. From records

10 Verify whether the system in place for checking cylinder validity before refill. From records

11 Verify whether the Compressor monitoring log are maintained Random check from

records

12 Check whether the Central CNG office is in place for attending complaints.

13 Check whether adequate Stores and inventory levels for Compressor spares for

reducing downtime.

From records

14 Verify whether all distances are maintained as per T4S and Gas cylinder rules 2004. Plot layout. Attach layout

plan with report

15 Verify wheather the max Filling pressure is maintained as per PNGRB Standard and

Gas cylinder rules.

From records

16 Check if the adequate Fire extinguishers are in place as per T4S of PNGRB

17 Verify whether the calibration records of safety devices and pressure releif devices

are maintained

From records

18 Verify that all electrical works and equipment in hazardous areas are made as per

Indian electric rules

From records

19 Verify whether the station is in compliance with pollution control boards( hazardous

waste disposal, dB levels)

From records

11

Check list for TPCA- Safety


Schedule-1D

1 Verify whether the Quantitative Risk assessment is carried out for the installations

within the city limits for the area having steel pipe wall less than 6.4 mm.

Review records

2 Verify whether the pressure control facilities are provided with Over pressure shut-off

valve.

From records or basis of design

documents

3 Verify whether the necessary safety precautions are taken during testing and

commissioning.

From records

Schedule-1E

4 Verify whether the Operation and maintenance procedures affecting the safety of gas

distribution facilities is in place and followed as per PNGRB Technical and safety

standards

From records

5 Verify whether the HSE management plan is in place and processes are defined as

per PNGRB Technical and safety standards

From records

6 Verify whether the Safe Control of Operation process is in place and records are

maintained.

From records

7 Verify whether the GIS based asset management system is in place and database is

updated

If the system is under implementation,

then the entity to provide the time-

based action plan for completion.

Schedule-1G

8 Verify whether the provision is made for eye wash or emegency shower near odorant

handling and injection system.

9 Verify whether the PPEs are used for handling of odorant spillage

12

Checklist GSR612(E)

Documents

Transcript of Checklist GSR612(E)