CNG / CGS Design Review and
Construction
Document Information
Issue
00
Document No.
LIII-TSD-(TSP003)-CDC-002
Copy No.
Original
Effective Date
01-01-2024
Next Review Due
01-01-2025
Prepared By:
Reviewed & Issued By:
Approved By:
Name
Vimal Patel
Anant Tandale
Shashwat Agrawal
Designation
Manager
GM
ED
Signature
Date
Torrent Gas
Content
1.0
Purpose ...................................................................................................................................... 3
2.0
Scope .......................................................................................................................................... 3
3.0
Field of application ..................................................................................................................... 3
4.0
Frequency................................................................................................................................... 3
5.0
Authorities and Responsibilities................................................................................................. 3
6.0
References/Cross-references ..................................................................................................... 3
7.0
Specific Competency Requirements .......................................................................................... 4
8.0
Interface with other departments/sections .............................................................................. 5
9.0
Tools and Tackles ....................................................................................................................... 5
10.0
Personal Protective Equipment/Safety Tools ............................................................................ 5
11.0
Significant Risk Parameters ........................................................................................................ 5
12.0
Process Flowchart/Illustrative.................................................................................................... 6
13.0
Procedure ................................................................................................................................... 7
14.0
Checkpoints .............................................................................................................................. 12
15.0
Recommended Practice ........................................................................................................... 12
16.0
RACI (Responsible, Accountable, Consult, and Inform) Matrix................................................ 13
17.0
Version Control History ............................................................................................................ 16
18.0
Abbreviations ........................................................................................................................... 16
19.0
Document History .................................................................................................................... 16
20.0
Control Mapping ...................................................................................................................... 16
Torrent Gas
1.0
Purpose
This document outlines the Standard Operating Procedure (SOP) for the City Gate Station
(CGS) and CNG Station Design and Construction. The purpose of this SOP is to ensure that
the design, implementation, and construction of CNG/CGS facilities meet safety,
regulatory, and quality standards while fulfilling project objectives.
2.0
Scope
This SOP covers the entire lifecycle of CNG/CGS projects, including design review,
construction planning, execution, and closeout. It applies to all personnel involved in the
design, review, and construction of CNG/CGS facilities, both internal staff and external
contractors.
3.0
Field of application
This procedure shall be applicable to all Torrent Gas departments across all locations of
Torrent Gas and its associated companies.
4.0
Frequency
This procedure shall be reviewed at least on an annual basis or as and when required.
5.0
Authorities and Responsibilities
TS Team / GA Team:
 TS Team / GA Team is responsible for implementation & amending the
procedure/guideline or carrying out any changes at appropriate time.
 TS Team / GA Team is responsible for execution of this SOP.
6.0
References/Cross-references
 Business Plan
 PNGRB T4S – Petroleum and Natural Gas Regulatory Board – Technical standard for
City and Local Natural Gas Distribution System and Natural Gas Pipelines
 OISD-179, OISD -226 – Oil Industry Safety Directorate
 Gas Cylinder Rules
 Indian Standard Codes
 National Building codes
 ASME B31.8 - Gas Transmission and Distribution Piping Systems
 API 5L - Specification for Line Pipe
 API 6D - Specification for Pipeline Valve
Torrent Gas
 API RP 1102 - Steel Pipelines Crossing Railroads & Highways
 ASTM A106 - Specification for Seamless Carbon Steel Pipe for High-Temperature
Service
 MSS SP75 - Specification for High Test, Wrought, Butt Welding Fittings
 ASTM A234 - Specification for Piping Fittings of Wrought Carbon steel and alloy steel
for moderate and High Temp. service
 ASME B16.5 - Specification for Pipe flanges and flanged fittings
 ASME B16.9 - Specification for Factory made Wrought Steel Butt welding fittings
 ASME B16.11 - Specification for Forged Fittings, Socket – Welding and Threaded
 API 1104 - Welding of Pipelines and Related Facilities
 DIN 30670 - Polyethylene Coating on Steel Pipes and Fittings
 OISD 226 - Natural Gas Transmission Pipeline & City gas Distribution Network
 PNGRB Regulation for determining capacity of City or Local Natural gas distribution
Network
 Policy for development of Natural Gas Pipelines and City or Local Natural gas
Distribution Networks
 Guidelines for Environmental clearance of new projects, 1981
 The Environment Protection Act, 1986
 Water (Prevention & Control of Pollution) Act, 1974
 Air (Prevention & Control of Pollution) Act, 1981
 The Petroleum and Minerals Pipelines (Acquisition of Right of User in Land) Act, 1962
 Manufacture, Storage & Import of Hazardous Chemicals Rules, 1989
 National Highway Act, 1956
 Railway Act, 1989
 MoRTH - Ministry of Road Transport and Highways
7.0
Specific Competency Requirements





Communication
Computer Literacy
Functional Knowledge
Analytical skill
Planning Related Knowledge
Torrent Gas
8.0
Interface with other departments/sections






9.0
GA Team
Finance
Procurement
Quality Assurance
Stores
Vendor/Service Provider
Tools and Tackles
 MS Office
 AUTOCAD
10.0
Personal Protective Equipment/Safety Tools
 PPEs should be used to carry out work at site
11.0
Significant Risk Parameters
Risk Assessment shall be in accordance with following:
 Process Risk, Opportunity Evaluation and Mitigation: LIII-MRF-(MRP001)-PRO-002
 SIRS and Determination of Controls: LIII-MRF-(MRP002)-SIRSC-008
Torrent Gas
12.0Process Flowchart/Illustrative
Torrent Gas
13.0Procedure
Sr. No.
Activity Steps
Layout preparation

13.1
TOPO (Building Line, Control Line, Road Set-back Line, plot set beck as per local
by-laws or NH Rules, NH/SH ROW if plot is on NH/SH and ROW is specified by
authority, details of plot (whether on Rural or Urban Stretch If plot is on NH
etc.), soil investigation report & requirement of proposed facility to Corporate
TS along with GA head approval by GA Team.
 Management approval is required for any additional facilities except CGS/CNG
station.
 Draft layout preparation by TS team according to Petroleum and Explosive
Safety Organization (PESO) requirement based on input received from GA.
 Submission of Draft layout to GA team for their review & comments
considering local PESO & other statutory/local authority requirement.
Architectural Designing
13.2
 Submission of Draft layout to Architect for preparation of final layout.
 Preparation of layout by an architect based on draft layout and consideration
of green area, rainwater harvesting, and other statutory requirements.
 On receipt of layout from Architect, review by TS team. Parallelly submission
to GA team for their review and observation. Submission of all observations
to Architect, if any.
 On receipt of final layout from Architect, preparation of initial PESO layout by
TS and submission to GA for review & further use.
 Designing of office building by architect considering proper ventilation,
maximum use of sunlight, Energy efficient fixtures, eco-friendly material,
recycle material, consideration of use of renewable energy etc.
 Submission of landscape & plantation layout/details by architect based on
input from GA for locally available trees/plants.
Statutory Permission
13.3
 Initial PESO application submission by GA Team to concerned PESO Circle
office for grant of initial license.
 Drawing preparation & submission by GA team for other statutory approvals.
 Liaising with PESO & other statutory body by GA team for required approvals.
Structural Designing
13.4
 Submission of Final layout, soil report & topography details to engineering
consultant for structural design by TS.
 Structural design by engineering consultant and submission of structural
drawings to TS.
Torrent Gas
 Review of drawing by TS and submission to GA for further execution.
Vendor Finalization
13.5
 Preparation of BOQ & Tender drawing/ technical documents by TS Team / GA
Team.
 Creating PR in SAP by GA team
 After PR released as per release strategy further Tendering by corporate
procurement.
 Technical bid evaluation (TBA) by TS on receipt of bid from procurement.
 Vendor finalization by procurement and award of PO as per Procurement
process.
Project Execution Planning
13.6
 Providing of site layout and all other execution drawing to vendor & TPI by GA
team and acknowledgement to be kept for records.
 Handover of land to vendor for work execution.
 Intimation to be given to construction contractor as well as TPI for Kick off
Meeting.
 Kick off meeting (KoM) with vendor. This meeting to be chaired by GA head
and attended by concerned team members like Construction Engineers,
Project Manager/In charge, HR/Admin Representative, HSE Representative
from GA team. This meeting is also to be attended by TPI and Authorized
representative of Vendor (preferably proprietor / authorized Project
Manager)
 Discussion on work schedule with vendor and finalization of mutually agreed
schedule in line with PO timelines and the same to be signed by vendor &
Torrent Gas site in-charge/GA head. Signed-off schedule to be shared with CH
and CO-TS.
 Discussion on mobilization, manpower & equipment/machinery planning,
material planning, quality, specifications, long lead items, safety, daily Toolbox
Talk (TBT) at site, legal & other statutory requirements, etc.
 Vendor has to submit the equipment/machinery & manpower deployment
plan, site organogram, quality assurance plan, EHS plan, Location of concrete
Batching Plant (if sourced from outside), Legal Compliance Plan, etc.
 Vendor has to maintain all required registers at site i.e. drawing register with
drawing issue date/ revision number, site instruction book, quality issue
register, Material/ stock register, labour register, and all other register as per
statutory requirements.
 Discussion on submission of Daily Progress Report (DPR) in editable format
and monthly progress report with photographs in pdf format by vendor.
 Discussion on missing drawings/details requirement by vendor, if any.
 Preparation of minutes of meeting of KoM with signature of all participants.
MoM of KoM to be shared with CH and CO-TS.
Torrent Gas
Project Execution
13.7
 Mobilization of vendor at site within 15 days from date of PO or as per PO
term.
 Plot marking, existing ground level survey by vendor and Joint measurement
record (JMR) with Torrent & TPI site engineer.
 Grading & levelling of land. Whenever possible relocate the existing
trees/plants.
 Layout of compound wall, equipment foundation, office building and all other
facilities as per site layout drawing by vendor in presence of Torrent & TPI site
engineer.
 Parallel to above, identification of borrow area for soil filling by vendor.
 Collection of soil sample in presence of Torrent/TPI representative and
sending of the same to laboratory for soil properties & Maximum Dry Density
(MDD)/Optimum Moisture Content (OMC).
 Concrete mix design of required grade in approved laboratory & testing of
cubes in presence of Torrent & TPI site engineer.
 Submission of MTC, lab test & site test report etc. for all materials.
 Start of compound wall retaining wall & other structure foundations i.e.
building, canopy, monolith, high mast, hording etc.
 Work execution as per drawing, specification, QAP, IS codes, other relevant
standards, EHS guideline etc.
 Start of soil filling after completion of retaining wall & other foundations up
to FGL level.

test in presence of Torrent/TPI site engineer as per guidelines of Ministry of
Road Transport & Highways, (MORTH).


specific items.

control room/ rest
area/ security cabin etc.
 Inside plastering of building after completion of electrical wall conduiting
works.
 Flooring & Dedo tile fixing work after completion of plumbing, electrical floor
conduiting and completion of plastering works.
 Sill/jams/lintel stone fixing & finishing works on completion of plastering work
of building i.e. control room/ rest area/ security cabin etc.

&
installation of sill/jams/lintel stone.

of building.

 Fabrication and Erection of Canopy, Hording, rest area for CNG station parallel
to the above works.
Torrent Gas

ompletion of foundations, UG
utilities & other ancillary works, laying of electrical conduits and chambers.

& compaction after completion of sab base works.

as per Construction and Demolition Waste Management Rules.

Torrent Gas, TPI & Vendor site engineer with completion date.

ime and before
release of final bill.
Reporting / Review Meetings

be sent to Torrent Gas representatives of GA after verified by TPI
conducted preferably as per below:
– chaired by GA Head, TPI, Vendor’s
senior representative and concerned GA team members

– by Project Manager/Site In charge of contractor, TPI,
and Concerned executives/managers of GA team

TPI also to prepare log sheet of daily activity.

progress and share with Torrent Gas team along with DPR/Progress Reports
and/or during meetings.


13.8
Handing Over & Close out

13.9
to the Project
In charge post verifying by the TPI and it further reviewed by Project incharge/ team.

 Signing of handing over protocol by vendor & Torrent Gas site in-charge/ GA
head.
 Project in Charge will submit all records to the GA head.
 Submission of PO closure documents / other required documents by GA head
to Corp. TS.
Other general instructions

signature & date.

13.10
at site and
updated drawing register with revision number & date.

necessary documents are required to submit along with bill.

ly, any deviation
is required prior approval of structural designer/ architect.
Torrent Gas

required documents/ justifications with cluster head approval.

of Rates (SOR) items, necessary
justification to be provided against each item with measurement sheet.

plantation layout.
Torrent Gas
14.0
Checkpoints
Checks
Frequency
GA team to ensure submission of Topography of plot / soil
Pre-Execution
investigation report of the proposed facility
Ensure draft layout is prepared in accordance of PESO
Pre-Execution
Architect to ensure proper ventilation, maximum use of
sunlight, Energy efficient fixtures, eco-friendly material, recycle
Pre-Execution
material, consideration of use of renewable energy etc. while
designing of office building.
Ensure Initial PESO application is submitted prior to execution of
Pre-Execution
the work
During the
execution
process
of
Ensure vendor submit DPR and MPR (Monthly progress report) During the
to concern team
execution
process
of
Ensure soil samples are collected in presence of Torrent / TPI During the
representative
execution
process
of
Ensure all required test of material & site test are conducted in During the
presence of Torrent / TPI representative
execution
process
of
Ensure guideline of Ministry of Road Transport & Highways, During the
(MoRTH) is followed for soil filling (layer wise)
execution
process
of
During the
execution
process
of
Ensure vendor maintains all required registers at site
Ensure monthly billing performed during construction phase
Ensure all documents/ records/ as built etc. are submitted by
Post Execution
the vendor
15.0
Recommended Practice
All processes specified in this SOP are developed incorporating existing and standard
industry practices.
Torrent Gas
16.0RACI (Responsible, Accountable, Consult, and Inform) Matrix
Major
Process/Area
Sub Process/Area
CNG / CGS Design
Review
and
Construction
Layout preparation
CNG / CGS Design
Review
and
Construction
Layout preparation
CNG / CGS Design
Review
and
Construction
Architectural
Designing
CNG / CGS Design
Review
and
Construction
Architectural
Designing
CNG / CGS Design
Review
and
Construction
Architectural
Designing
CNG / CGS Design
Review
and
Construction
Architectural
Designing
Activity details
Submission of
Topography of plot
in TOPO, soil
investigation report
and requirement of
proposed facility.
Management
approval is
required for any
additional facilities
except CGS/CNG
station
Submit draft layout
for preparation of
final layout
Architect will
prepare layout and
submit for the
review to TS team
On receipt of final
layout from
Architect,
preparation of
initial PESO layout
Designing of office
building
Submission of
landscape &
plantation
layout/details by
architect
Necessary statutory
permission to be
taken such as PESO,
other statutory
requirements
R
A
C
I
GA Project
In charge
GAH
CH
TS
GAH
CH
CO
CO-TS
TS
TS
TS
TS
GA
TS
TS
GA
TS
TS
TS
TS
GA Project
In charge
GAH
CNG / CGS Design
Review
and
Construction
Architectural
Designing
CNG / CGS Design
Review and
Construction
Statutory Permission
CNG / CGS Design
Review and
Construction
Structural Designing
Structural design &
drawing
TS
TS
Structural Designing
Review of drawing
by TS and
submission to GA
for further
execution.
TS
TS
CNG / CGS Design
Review and
Construction
Torrent Gas
CH
TS
CNG / CGS Design
Review and
Construction
Vendor Finalization
CNG / CGS Design
Review and
Construction
Project Execution
Planning
CNG / CGS Design
Review and
Construction
Project Execution
Planning
CNG / CGS Design
Review and
Construction
Project Execution
Planning
CNG / CGS Design
Review and
Construction
Project Execution
Planning
CNG / CGS Design
Review and
Construction
Project Execution
Planning
CNG / CGS Design
Review and
Construction
Project Execution
Planning
CNG / CGS Design
Review and
Construction
Project Execution
Planning
CNG / CGS Design
Review and
Construction
Project Execution
CNG / CGS Design
Review and
Construction
Reporting / Review
Meetings
CNG / CGS Design
Review and
Construction
Reporting / Review
Meetings
Vendor to be
finalized based on
the process
Provide site layout
and all other
execution drawing
to vendor & TPI
Handover of land to
vendor for work
execution
Kick off meeting
with vendor.
Discussion on work
schedule with
vendor, Finalize the
agreed schedule.
Discussion on
mobilization,
manpower &
equipment/machin
ery planning, etc.
Vendor has to
submit the
equipment/machin
ery & manpower
deployment plan,
site organogram,
etc.
Vendor has to
maintain all
required registers
at site i.e. drawing
register as per
statutory
requirements.
Submission of Daily
Progress Report
(DPR) in editable
format and
monthly progress
report with
photographs in pdf
format by vendor
Project is executed
as mentioned in the
SOP and PO terms
Procureme
nt
Procureme
nt
GA EIC
GA Project
In charge
GAH/CH
CH
GA Project
In charge
GAH
CH
TS
GA Project
In charge
GAH
CH
TS
GA Project
In charge
GAH
CH
TS
GA EIC
GA Project
In charge
GAH/CH
TS
GA EIC
GA Project
In charge
GAH/CH
TS
GA EIC
GA Project
In charge
GAH/CH
TS
GA EIC
GA Project
In charge
GAH/CH
TS
Monthly Progress
review meeting
GA EIC
GA Project
In charge
GAH/CH
TS
Weekly site
meeting
GA EIC
GA Project
In charge
GAH/CH
TS
Torrent Gas
CNG / CGS Design
Review and
Construction
Reporting / Review
Meetings
CNG / CGS Design
Review and
Construction
Reporting / Review
Meetings
CNG / CGS Design
Review and
Construction
Handing over
CNG / CGS Design
Review and
Construction
Handing over
CNG / CGS Design
Review and
Construction
Handing over
TPIA to send
observation report
to Torrent Gas
team as and when
required.
Vendor and TPI to
capture
photographs of
critical site
activities and site
progress and share
with Torrent Gas
team
Handing over of all
documents/
records/ as built
etc. by vendor and
verification
by
Torrent Gas & TPI
engineer/
incharge.
Submission of no
dues & no claim
certificate by
vendor.
Signing of handing
over protocol by
vendor & Torrent
Gas site in-charge/
GA head.
Torrent Gas
GA EIC
GA Project
In charge
GAH/CH
TS
GA EIC
GA Project
In charge
GAH/CH
TS
GA EIC
GA Project
In charge
GAH/CH
TS
GA EIC
GA Project
In charge
GAH/CH
TS
GA Project
In charge
GAH
CH
TS
17.0
Version Control History
Version No.
Issue 00 – Revision 00
Issue 00 – Revision 01
Issue 01 – Revision 01
Issue 01 – Revision 02
Reasons for change
Original version
Internal Audit 01/2022
Addition of RACI Matrix
Operational Requirement
18.0
Abbreviations
CH: Cluster Head
DPR: Daily Progress Report
EHS: Environment, Health, and Safety
EIC: Engineer In Charge
GA: Geographical Area
GAH: Geographical Area Head
JMR: Joint Measurement Record
KoM: Kick Off Meeting
MDD: Maximum Dry Density
OMC: Optimum Moisture Content
PESO: Petroleum and Explosive Safety Organization
PO: Purchase Order
SOR: Schedule of rates
TBA: Technical bid evaluation
TBT: Toolbox Talk
TPI: Third Party Inspection
TS: Technical Services
19.0
Document History
Date
01-08-2021
04-05-2022
01-01-2024
14-10-2024
Version No.
Date
Author
Approver
Description of Amendment
Issue 00 –
Revision 00
01-082021
Vimal Patel
Shashwat
Agrawal
Fresh release
Issue 00 –
Revision 01
04-052022
Vimal Patel
Shashwat
Agrawal
Reference - Standards and Codes
added. Addition in procedural
content.
Issue 01 –
Revision 01
01-012024
Vimal Patel
Shashwat
Agrawal
Addition of RACI Matrix
Issue 01 –
Revision 02
14-102024
Vimal Patel
Shashwat
Agrawal
Addition of Formats listed in
clause 19.
20.0
Appendix
Torrent Gas
Sr.
No.
Document /Record
Description
1
2
3
4
SITE INSPECTION REPORT FOR CIVIL WORK
Seive analysis of Fine aggregate (Sand)
Seive analysis of Coarse aggregate (10 mm)
Seive analysis of Coarse aggregate (20 mm)
Incoming material inspection report for Civil
Work
Cube test result register
FDD by sand replacement
FDD by core cutter
Concrete Pour Card
Brick-Water absorption and Comp strength test
5
6
7
8
9
10
21.0
Reference No.
LIV-TSR-(TSP003-CDC002)-IRCW-003
LIV-TSR-(TSP003-CDC002)-SFAS-004
LIV-TSR-(TSP003-CDC002)-SACA-005
LIV-TSR-(TSP003-CDC002)-SACA-006
LIV-TSR-(TSP003-CDC002)-MIRC-007
LIV-TSR-(TSP003-CDC002)-CTRR-008
LIV-TSR-(TSP003-CDC002)-FSR-009
LIV-TSR-(TSP003-CDC002)-FCC-010
LIV-TSR-(TSP003-CDC002)-CPC-011
LIV-TSR-(TSP003-CDC002)-BWCS-012
Control Mapping
Particulars
Annexure
Control Mapping
Torrent Gas