Radhanapur & sanatalpur RWSS

Estimated Cost: Rs.

PRICE BID + Data Sheet+ Specification

Executive Engineer

Public Health Works Division

Gujarat Water Supply & Sewerage Board

VOLUME: III Price Bid, Specification (Radhanpur-Santalpur RWSS)

VOLUME – III – PRICE BID

2.0 BID FORM (WITH PRICE)

5.0 BREAK UP FOR INTERIM PAYMENT

6.0 DATA SHEET FOR CIVIL STRUCTURE

7.0 Detailed Specification

Schedule – B - “Design & Construction of RCC U/G Sump,

Lowering, laying and jointing MS Pipeline,

construction Pump House with Pumping Machinery

& Electrification at Daisar SHW of Radhanpur Group

of Radhanpur-Santalpur RWSS, Ta: Santalpur, Dist.

Specification Detailed Specification

VOLUME: III Price Bid, Specification (Radhanpur-Santalpur RWSS)

1. Name of work “Design & Construction of RCC U/G Sump, Lowering, laying and

jointing MS Pipeline, construction Pump House with Pumping Machinery &

Electrification at Daisar SHW of Radhanpur Group of Radhanpur-Santalpur RWSS,

Ta: Santalpur, Dist. Patan”

2. The bidder shall quote his firm and fixed price for the entire work under this Contract,

defined in more details in various sections of this bid document.

3. The rates and prices shall be submitted in the electronic formats given by n-procure which

is called Schedule-B (Schedule B1, Schedule B2...., Schedule C), rates and prices received

in any other formats will be rejected and the Bids will be disqualified.

4. It will be entirely at the discretion of the Employer to accept or reject the bidder’s

proposal, without giving any reasons whatsoever and the bidder shall not be permitted to

withdraw his bid on this account.

supplied from the by client.

6. In Schedule-B the Bidder shall quote prices for the items on lump sum / unit rate as called

for against the BOQ item.

only will be considered for price evaluation & shall form a part of the Contract Agreement.

9. The Bidder shall quote his prices for Operation & Maintenance in Schedule-C. Bidder shall

give year wise break up of cost for 5 years O&M in Schedule-C/1 to Schedule-C/5

seperately for Schedule-C. The total shall be inline to the price quoted in Schedule-C. The

total shall be carried forward to Schedule-B for comparison and evaluation.

10. Wherever for a particular item the quantities have been specified payment shall be on unit

rate basis and unit variation in quantity will be paid with pro rata basis.

11. Each item is to be individually priced online and the amounts shall be added up to arrive at

VOLUME: III Price Bid, Specification (Radhanpur-Santalpur RWSS)

except where the item description requires the item to be priced on "as applicable” basis.

The item shall not be priced if it is “not applicable” to the bidder’s design, in which case

the bidder shall add the words “NOT APPLICABLE”. The wording in the item description is

for subject matter guidance only; clause references are indicative only and all other

relevant clauses shall also be referred to. The prices shall allow for all the works covered

under the bid and all liabilities and contractual obligations whether separately specified or

not. Items against which no prices are quoted shall not be separately paid for and the

bidder shall be deemed to have covered the cost of execution of such items (according to

the requirements of the bid document) in the prices quoted for other items.

satisfactory working/safety of the system as specified, will not be separately paid for by

the Employer when executed and shall be deemed to be already covered by other items

and rates listed in the price sheets No extra payment shall be given for any item which is

required to complete and perform the project.

during the pendency of the Contract. In case of any discrepancy noted in the various price

schedules, those in Schedule B will be considered and binding on the Contractor. The prices

corrections if any will be considered for financial evaluation of the bid.

14. Schedule ‘D gives the basis of interim payment for construction of civil works.

15. The bidder shall be deemed to have allowed in his price for provision, maintenance and

final removal of all temporary works of whatsoever nature required for construction

including temporary bunds, diverting water, pumping, de-watering etc. for the proper

execution of works. The rates shall also be deemed to include any works and setting out

that may be required to be carried out for laying out of all the works involved.

16. Prices shall be filled online only.

Specifications and other sections of these bid documents and these documents are to be

taken as mutually explanatory of one another.

18. The bidder shall interpret the data furnished and carry out any additional survey work, or

investigation work required at his own cost.

19. The prices quoted shall also include the cost of materials utilized for testing.

VOLUME: III Price Bid, Specification (Radhanpur-Santalpur RWSS)

20. The bidder should acquaint himself with the site conditions including the access to Work

site. The successful bidder shall have to make suitable access to work sites at his own cost.

These accesses will be used by the other contractors working for GWSSB.

shall include all the equipments / materials / accessories and services required as per the

22. The amount to be quoted for O & M / year shall be as per Volume-IB, General Conditions of

Contract, Clause No. 1, Security Deposit.

23. 1% of the value of work will be deducted from the Running bill against labour cess which is

24. Third Party Inspection / CSC agency will be deployed by GWSSB and charges of the same

will be borne by GWSSB.

25. Any expenditure incurred by inspection/ CSC agency for the work misinformed by the

contractor and charges of inspection/ CSC agency without any work due to misinformation

shall be recovered from the contractor.

26. The rates to be quoted by the Contractor must be exclusive of GST but inclusive of all

other taxes. GST should be paid extra on the admissible payment as per the approved

tender rates and condition of price variation; GST should be paid as per prevailing

rates at the time of payment. The TDS as per provision of IT rules and GWSSB policy.

27. The rates Should be quoted exclusive of GST but inclusive of all other taxes as per

Volume-I (B) General Condition of Contract, Clouse No.

28. The process requires that the bidder shall quote his price for the work components

during the entire period of performance of the contract except price variation allowed for

supply of MS/DI/PVC/HDPE pipe as per Volume-II(A), General Conditions of Contract.

29. Payment shall be made for the components for which lump sump prices are quoted, as per

the schedule of payment. Total cost will be worked out on the basis of work done of

individual items and rates quoted against those particular items only.

30. Royalties: The contractor shall be liable to pay the royalty of the quarried materials/

minerals used in the construction of works at the rates specified in the Narmada Water

Resources, Water Supply & Kalpsar Dept. Resolution No. GEN-2010-595- (6)- M.I.Cell ( K-1)

Dt. 29-4-2011 ( Gujarati Version Copy enclosed) and shall be recovered from the running

bills of the work from time to time and remaining amount if any shall be recovered from

the final bill before releasing the security deposit of the work. The contractor shall furnish

VOLUME: III Price Bid, Specification (Radhanpur-Santalpur RWSS)

the statement showing the quantity of quarried materials / minerals from whom purchased

( with full address of the seller) and copies of the bills for purchase to the Executive

Engineer of the in charge of the work. The contractor shall also furnished such additional

information as regards royalty payment to the competent authority.

31. Agency shall have to take Insurance policy and intimate to GWSSB along with the evidence

within time limit. In case of noncompliance entire responsibility shall be rest with the

agency and required amount shall be recovered from any due amount of the agency.

32. GWSSB can recover penalty amount from the agency for not taking the insurance. Though

the penalty amount is recovered, responsibility of the agency for taking insurance shall be

continued and will not be escaped from the responsibility.

33. The contractor shall apply fair means of stock maintenance and shall adopt accounting

standard as may be prescribed under GST Act as applicable in the state of Gujarat. For

arriving at the difference in procurement prices due to introduction of GST it will be open

for the Board to ask for original invoices, lorry receipt, weigh bridge slips, payment details

and such other documents as may be required for the purpose.

The claim of contractor regarding GST shall have to be backed by documentary evidence

substantiating the actual payment of tax duly certified by the competent tax authority. The

final decision regarding the quantum of the claim amount to be recovered or reimbursed shall

be of the competent authority of the GWSSB and shall be binding on the contractor.

Signature of Contractor Executive Engineer

P.H. Works Division Radhanpur

VOLUME: III Price Bid, Specification (Radhanpur-Santalpur RWSS)

2. BID FORM (WITH PRICE)

Bidders are required to fill up all the blank spaces in this Bid Form.

SUB: Design & Construction of RCC U/G Sump, Lowering, laying and jointing MS

Pipeline, construction Pump House with Pumping Machinery & Electrification at

Daisar SHW of Radhanpur Group of Radhanpur-Santalpur RWSS, Ta: Santalpur,

1. Having visited the site and examined the Bid Documents, Drawings, Conditions of Contract,

including Addenda / Amendments to the above, for the execution of the above Contract, we

the undersigned offer to Design, Engineer, Procure, Construct, Complete, Commission,

operate, maintain and Run the whole of the said works for 6 (Six) Months from the date of

commissioning including defects liability period as given in Conditions of Contract and in

conformity with the drawings, conditions of Contract, specifications, Preamble to Price

Nos.____________________(insert numbers) for Lump sum fixed price of

Construction including free trial run (If Applicable) for three months or such other sum as

may be ascertained in accordance with the conditions.

2. I / We agree that

(a) If we fail to provide required facilities to the Employer’s representative or any other

person / Agency by the Employer to perform on his behalf for carrying out the inspection

and testing of materials and workmanship.

(b) If we incorporate into the Works, materials before they are tested and approved by the

Engineer’s representative

(c) If we fail to deliver pure water of required quantity according to the conditions /

stipulations of the Contract, the Engineer will be at liberty to take any action including

termination of Contract and impose at his absolute discretion any penalties, and / or

reject the work.

VOLUME: III Price Bid, Specification (Radhanpur-Santalpur RWSS)

3. We undertake, if our Bid is accepted, to complete and deliver the works in accordance with

the Contract with in ......... Months, inclusive of monsoons, from the date or receipt of

Letter of Acceptance issued to us by you.

4. We agree to abide by this Bid for a period of 180 days from the last date of submission of

bid and it shall remain binding upon us and may be accepted at any time before the expiry

of that period.

5. In the event of our Bid being accepted, we agree to enter into a formal Contract Agreement

with you incorporating the conditions of Contract thereto annexed but until such agreement

is prepared this Bid together with your written acceptance thereof shall constitute a binding

Contract between us.

6. We agree, if our Bid is accepted, to furnish performance Security in the forms and of value

specified in the Clause 1 of Volume-IB, General Conditions of Contract.

7. We have independently considered the amounts of liquidated damages shown in Appendix to

Bid and agree that they represent a fair estimate of the damages likely to be suffered by

you in the event of the work not being completed by us in time.

8. We understand that you are not bound to accept the lowest or any bid you may receive.

(Name of the person)

(In the capacity of)

Duly authorized to sign Bid for and on behalf of (Fill in block capitals)

VOLUME: III Price Bid, Specification (Radhanpur-Santalpur RWSS)

NAME OF WORK: Design & Construction of RCC U/G Sump, Lowering, laying and

jointing MS Pipeline, construction Pump House with Pumping Machinery &

Electrification at Daisar SHW of Radhanpur Group of Radhanpur-Santalpur RWSS, Ta:

Santalpur, Dist. Patan.

(M and R Programme 2025-26)

Sr. Particulars Quantity Unit Rate at Place of

No Which the Delivery

1 323.9mm dia with 5.6mm 50.0 Rmt Free of cost

thickness MS Pipe Any Store GWSSB

1 The Contractor submitting the tender should see that the rate in Schedule - A (of tender

documents) are filled by the Engineer in charge prior of the time of issue of tender.

2 Any additional materials to be supplied free of cost as per Schedule-A if found necessary at

the time of execution will be supplied to the contractor free of cost

3 Any materials other than that provided in Schedule-A if required for the labour items of

Schedule-B issued on request to the contractor provided the same are available with

department at prevailing market rate or department issue rate whichever is higher.

4 The contractor shall provide his own arrangement at his own cost for loading, unloading and

transport to the site of work for the material stipulated in Schedule-A.

5 Those works will be executed which are found necessary at the time of execution, contractor

will not be entitle for any claim for saving in any items as per site condition.

6 The rate of recovery for short fall or damage of material issued free of cost will be present

S.O.R. plus 3% storage charge or rates of Board R/C Plus 3 % storage whichever is higher.

7 No negotiation at present in from and hence contractor should quote their rates accordingly.

8 The sub contract, if any given by the contractor would not create any right against the Board.

9 The Amount Recoverable from the contractor by the Gujarat water supply and sewerage

board on any account shall be liable to be recovered from the amount payable to the

contractor / suppliers.

10 After passing the bill fund shall be demanded to higher authority payment shall be made after

getting fund from higher authority.

11 Labour Cess under the prevailing rules of the Government Resolution shall be borne by the

bidder. (Present rate is 1%).

12 Royalty on Minerals Consumed in works from End User under the prevailing rules of the

Government Resolution (No.GJ/2016/MCR-102013-3289 Dtd.18/06/2016) shall be borne by

VOLUME: III Price Bid, Specification (Radhanpur-Santalpur RWSS)

Date & Signature of Contractor

Deputy Executive Engineer Executive Engineer

Public Health Sani. Sub Division Public Health Works Division

Radhanpur Radhanpur

VOLUME: III Price Bid, Specification (Radhanpur-Santalpur RWSS)

Name Of Project:- Design & Construction of RCC U/G Sump, Lowering, laying and jointing MS Pipeline,

construction Pump House with Pumping Machinery & Electrification at Daisar SHW of Radhanpur Group of

Radhanpur-Santalpur RWSS, Ta: Santalpur, Dist. Patan.

It. No. ITEM DESCRIPTION Qty. Unit Rate Amount

Preparing structural design of RCC Under Ground / Partially under ground / above high ground level

Reservoir of required capacity as per relevant I.S. standards and constructing the same, including

excavation in all types of soil strata (including rock) including shoring strutting if required, for loose

soil / to protect from collapse, casting 100 mm thick P.C.C. levelling course in M-15, Refilling the pit

with proper soil and disposing of the surplus stuff at all lead. Including cement plaster in CM 1:2

with approved water proofing compound to all over inside container (i.e. walls, base, top slab/dome

bottom etc. all). Including all types of labour and material charges of lowering, laying, erecting /

hosting and jointing of pipe assembly to inlet, outlet overflow, washout and bye pass arrangement

as per hydraulic design. Providing and fixing accessories, CI Manhole frame and cover, water level

indicator, adequate cowl type ventilators or lantern type ventilator with stainless steel jail. RCC

chambers for valves. Providing and applying three coats of cement paint / snowcem to the out side

face of structure. It also includes satisfactory water tightness test as per relevant I.S. code and

painting name of scheme and capacity on the tank as per direction of engineer incharge.

List of Indian Standards for Design of GSR / SUMP:-

The structural design of GSR shall be in accordance with provisions relevant I.S.

VOLUME: III Price Bid, Specification (Radhanpur-Santalpur RWSS)

(1) I.S. 3370, Part – 1 & 2, 2009 or latest revised. (1.1) I.S. 3370, Part – 3 & 4, 1965 or latest

revised.(2) I.S. 456 – 2000 or latest revised. (3) I.S. 1893 – 2000 – 1984 or latest revised (4) I.S.

Part – 1 to 3, 1987 or latest revised. General Specifications:- (1) Water depth in container shall be

adopted as per data of tender. If water depth is not specified the suitable water depth / acceptable

to field engineer in accordance with hydraulic requirement shall be adopted for capacity. (2) Shape

of container (in plan) specified by in data shall be adopted in absence circular shape shall be

adopted.(3) Size shall be fixed as per availability of space (land area) at site / acceptable engineer in

charge.(4) Effect of overlapping of pressure bulbs on soil due near by structure and proposed sump

should be considered.(5) Care shall be taken that no damage should occur to nearby existing

structure. Compensation shall be paid for the same by agency.(6) The minimum concrete grade for

RCC shall be M-30 (7) HYSD Fe 415 / 500 grade reinforcing bars confirming to I.S. 1786 / 1139 shall

be considered in design. CRS / TMT bars shall be provided. In saline atmosphere corrosion

resistance stainless steel / HCR rebar shall be provided. Any other steel can be used with approval of

C.E./ in situation of non availability in market without extra cost. (8) Minimum size (or thickness) of

various components shall be provided as per tender criteria / specifications in absence as per I.S./

Std. practice of G.W.S.S.B. Minimum dimensions specified for various components in tender data /

specifications shall be provided without fail.

(9) The safe bearing capacity (SBC) shall be referred from SBC test report. In absence of report it

shall be referred from data sheet. If poor soil is found / water table is met with during excavation

SBC shall be scientifically ascertained and design shall be revise. No extra shall be paid for increase

in quantity.(10) DI/CI pipes and special shall only be used if type is not specified in tender.(11) The

rate shall include cost of dewatering during excavation making all arrangement when water table

meets within depth.(12) The structure shall be designed properly to resist uplift due to ground

water table specified in data or actual ground water table meets with during excavation. No extra

shall be paid. If GWT / Uplift is mentioned in tender and during excavation it does not meet 7.5%

rate shall be reduced.(13) SS pipes railing shall be provided when sump is more than 2 meter above

ground level.(14.a) RCC staircase /RCC steps should be provided from GL to sump top slab based on

the height of the GSR above/Below the ground.(14.b) RCC Staircase with SS railing to be provided

inside reservoir container. BB Masonry staircabin to be provided to cover the same with MS safety

door having locking arrangement.(15) Appearance of structure should be aesthetically good

looking acceptable to authority. (16) Any charge in size, shape, depth below GL, height above GL,

water depth, F.B., size of member etc can be permitted in exceptional case due to site condition or

hydraulic design requirement by C.E. No extra shall be paid for change.

VOLUME: III Price Bid, Specification (Radhanpur-Santalpur RWSS)

1 (17) Any charge in data, dimensions, shape, water depth, reduction in size if permitted by

competent authority and if it reduces quantity then payment shall be reduced prorate. (18) When

capacity of GSR / Sump is > 20 lakh liters two or suitable compartments acceptable to executive

engineer shall be designed and provided.(19) Agency shall engage qualified (at least graduate)

consulting engineer for designing the structure and he / she shall visit the site for guidance of

work.(20) 75% part rate shall be payable for concrete, reinforcement and plastering items of

container until satisfactory hydraulic testing for water tightness is performed as per tender

condition. Till the work shall be treated as incomplete. Above conditions / general specifications Sr.

No. 1 to 20 are part and parcel of tender (contact) and prevail over other provisions in tender.

Sump with water table (sub soil water level above foundation) U/G Sump at MHW/SHW

RCC Sump of 17.00 lakh ltr. Capacity U/G sump Circular (at DAISAR HW) 1.00 No. 45,42,543.75

2 L, L & J of MS Pipe

Lowering, laying, jointing & welding in position to correct line & level M.S. Pipe upon prepared

formation or prepared bedding in trenches the rates include conveyance from store to site of work

loading, unloading, heat shrink sleéev jointing hydrotesting etc.complete.

323.9mm dia with 5.6mm thickness 50.00 RMT 421.28

3.0 Excavation for pipe line trenches for water supply, sewerage line, manhole etc. all with shoring and

struting if required as per required gradient and line including safety provisions using site rails and

stacking excavated stuff including up to all required lead cleaning the site etc. complete for all lifts

and strata as specified.

In all sorts of soil and soft murrum

Upto 1.5mtr Depth 66.38 Cum 91.23

3.1 In all sorts of soil and soft murrum

Upto 1.5 to 3.0mtr Depth 33.75 Cum 100.45

4 Refilling the pipeline trenches incl. ramming, watering, consolidating desposal of surplus stuff as

directed within a radius of 3 km. Refilling as directed 96.11 Cum 22.55

5 Gas cutting(Either square cut or V cut) pipes, plates etc. including all costs for the followng

Above 5 mm up to 10 mm 25.12 RMT 57.40

6 Welding in all positions with required number runs, for M.S.Pipes internally and/or externally

including gauging wherever necessary,fixing appurtenances and other accessories in connection

with pipe laying work as per specification. As above for Butt Joints : Plate thickness

Welding for Pipe thickness 4 mm to 7mm 33.16 RMT 698.03

VOLUME: III Price Bid, Specification (Radhanpur-Santalpur RWSS)

7 Labour charges for repairing of leakage in MS pipeline of following diameter at different places

including necessary excavation manually or by machinery, dewatering, removing of mud, cleaning of

pipe and leakage, portion, grinding, cutting the pipeline or joint if necessary inci. welding the joint

by using ISI marked welding rods * |duly approved by EIC of appropiate numberandsize inclusive of

excavator, Hydra/ Crane, D.G. set, welding machine, Gas cutter with LPG Cylinder, Oxygen cylinder,

Grinding machine etc. with fuel, opertor & labour as required. (incl. all material but excluding cost

of pipe) Dia. from 168.3 to 323.9mm At Daisar Hw - 2 Nos 2.00 No. 5,378.18

8 M. S. Specials plain & socket ends

above 300 mm dia 50.00 kg 98.40

9 Providing and supplying ISI mark C.I.D/F Sluice valves, Butterfly valves & Reflux valves of following

class & diameter incl. all taxes, insurance, transportation, freight charges, octroi, inspection charges,

loading, unloading, conveyance to departmental stores, stacking etc. complete incl. Sluice valves as

per IS 780 & 2906 / 1984. PN-1 with hand wheel/ cap operated. (300mm Dia.)

10 Lowering, laying and jointing in position following C.I. D/F Reflux valves, Butterfly valves, Sluice

valves and Air valves including cost of all labour, jointing materials, incl. nut-bolt & giving

satisfactory hydraulic testing etc. complete. 1.00 No. 1,169.53

11.0 Construction of valves chambersin brick or bela stone masonry, locally available in C. M. 1:6.

Foundation concrete 150 mm thick in

CC1.4.8 of trap metal size 25 mm to 40 mm thick, inside cementplaster in C. M. 1:3 and

cementpointing outside in C. M. 1:3 and top cover of| precast RCC slab 100 mm thick twith key hole

in two parts, each with handles or MS Bar etc. complete as given size) Upto 1 Mt. depth from GL. to

pipe invert level inc! complete civil works but excl. cost of excavation and refilling, with cast in situ

RCC slab in one single piece with fixing of CI-MH Frame and cover (excl. cost of CI-MHFrame and

cover ) with 23mm thick brick masonary wall in CM 1:6

Size of 1.30 m x 1.30 m and 1.0 m deep With precast slab in two parts 15mm 1.00 No. 11,634.78

11.1 For 1 Mtr_ Extra Depth 1.00 No. 6,236.10

12 Designing (aesthetically) & Constructing Pump Room with Positive & Negative Suction with Gantry

(Min Height 4.5 mt.) Note:- 1. Minimum 15 % opening for ventilation should be provided. 2. Pump

room rolling shutter, door and windows of aluminium section and window grill of iron should be

provided (Included in Cost). 3. Plinth level of Pump house should be min.1 meter above GL. 4.Cost

does not include foundation for pumping machinery. Upto 6.00 M (Plinth Level to Top slab Beam

Bottom) Pump Room at Daisar Hw = 6*4mtr 24.00 sq.mt 15,684.26

VOLUME: III Price Bid, Specification (Radhanpur-Santalpur RWSS)

13 MECHANICAL EQUIPMENTS SECTION

Supply, installation, testing & commissioning of horizontal split casing centrifugal pump motor set of

specified duty parameters & guaranteed efficiency of following MOC with specified capacity,

horizontal foot mounted TEFC squirrel cage induction motor (with minimum IE-3 efficiency class),

working on three phase AC supply with 50 Hz ± 3%, 415 V ± 10%, rated speed 1450 RPM along with

fabricated MS base frame, coupling, coupling guard, foundation bolts etc, as per relevant IS.

M.O.C.: Impeller & Wearing Rings: CF8M, Casing: Cast Steel WCB, Shaft: SS 410, Shaft Sleeve: SS

410, Mechanical Seal (Above 30 kW), Base Frame: MS.

Capacity:- 300 m^3/hr & 35 Mtrs. Head (1W+1S) and prime mover of minimum 45 KW ratings with

rated speed-1450 RPM 2.00 No. 3,81,770.00

14.0 Manufacture, Supply & Delivery of Electric Resistance Welded (Up to 400mm)/Submerged Arc

Welded(Above 400mm) M.S.Pipe having beveled ends plate or coil conforming to IS-3589-2001 or

its latest revision/ ammendment for following thickness outside diameter at GWSSB store or site

anywhere in Gujarat State including all taxes, insurance, transportation, freight charges, octroi,

inspection charges, loading, unloading conveyance to Departmental stores, stacking etc. all

complete. (Rate for MS Pipe based on the ex. works price of HR Coil as Rs.58500 per MT - withouth

GST (Above 3.15 mm to 10 mm) & Rs. 59000.00 per MT without GST (Above 10 mm)

273 mm Suction pipe with thickness 5 mm 21.00 RMT 2,683.00

14.1 323.9 mm Common Header with thickness 5.6 mm 12.00 RMT 3,517.00

15 Providing and supplying and Installing ISI mark G. I. pipes with Couplings of following class and

diameter including all taxes, Insurance, transportation, freight charges, octroi, inspection charges,

loading, unloading, conveyance to departmental stores, stacking etc. complete. (IS-1239) (For By-

pass) (Not for well/tube well column pipe)

6.1.B- Medium Duty(80 mm Dia.) 10.00 RMT 625.00

16 Supply at Site, Installation, Testing & Commissioning of MS Special i.e Flanges, Concentric &

Eccentric Reducer, Expander, Nozzles, bends, Bolts, Nuts,etc. Complete as per relevent IS Standard. 350.00 kg 98.00

17 Supply at Site, Storage, Erection, Installation, Testing & Commissioning of ISI Mark Both End Flanged

250 mm Ø Sluice Valve C.I. Non Rising Spindle Hand wheel/Cap operated (PD type Short body) with

PN 1.0 Rating of Approved make etc. Complete as per Specification & requirement.

Sluice Valve on Suction side 2.00 No. 16,866.00

VOLUME: III Price Bid, Specification (Radhanpur-Santalpur RWSS)

18.0 Supply at Site, Installation, Testing & Commissioning of Both End Flanged Gear operated Butterfly

Valve as per IS 13095 with sleeve of EPDM & disc, shaft & internal partsof SS-410, with ISI mark of

PN 1.0 Rating of Board Approved make etc. to be installed Complete as per Specification &

250 mm Delivery Side 2.00 No. 9,509.00

18.1 300 mm Common Header Side 1.00 No. 17,945.00

19 Supply at Site, Storage, Erection, Installation, Testing & Commissioning of ISI Mark Both End Flanged

80 mm Ø Sluice Valve C.I. Non Rising Spindle Hand wheel/Cap operated (PD type Short body) with

PN 1.0 Rating of Approved make etc. on Bypass Pipings Complete as per Specification &

requirement. 1.00 No. 3,052.00

20.0 Supply at Site, Storage, Erection, Installation, Testing Commissioning of SS Expansion Bellows (Both

ends flanged) of PN 1.0 with flanges 15 mm axial compression and 5mm axial extention, 300 mm

overall length with tie rods, nuts etc. of Approved make designed as per EJMA standards and MOC-:

bellows-: SA240 GR.304; Internal sleeve SA240 GR.304; Weldends- IS 2062 Gr.B; Flanges-IS

Gr.B(Drilling as per IS 1538/IS 6392) & limit rods and nuts- CS IS

250 mm Delivery Side 2.00 No. 7,745.00

20.1 300 mm Common Header Side 1.00 No. 10,200.00

21.0 Supply at site, Storage, Erection, Installation, Testing & commissioning of given size as per IS:5312

(Latest Edition) Both End Flanged Swing Plate Type Dual Plate Check Valve with ISI Mark only with

PN 1.0 Rating of Approved make etc. Complete as per Specification

250 mm Delivery Side 2.00 No. 27,705.00

21.1 300 mm Common Header Side 1.00 No. 36,186.00

22 Supply at site, Storage, Erection, Installation, Testing & commissioning of 50 mmØ C.I Temper proof

Air valve with isolating sluice valve with PN-1.0 with SS 304 Float gun metal nozzle of approved

make and quality of following class and diameter including all taxes, insurance, transportation,

freight charges, octroi, inspection charges, loading, unloading, conveyance to departmental store,

stacking etc. 1.00 No. 11,600.00

23 Supply at Site, Storage, Erection, Installation, Testing & Commissioning of Bourden type glycerene

filled Pressure Gauge, ±1% accuracy, complete with syphon tube, Micro zero adjustable pointer,

gasket with isolating cock having range of 0 - 6 Kg/cm^2 as per IS 3624 and 150mmØ dial etc. comp.

as per requirement on delivery side & Common Header. 3.00 No. 1,412.00

VOLUME: III Price Bid, Specification (Radhanpur-Santalpur RWSS)

24 Supply at Site, Storage, Erection, Installation, Testing & Commissioning of approved make

Dewatering Pump Set of type horizontal mono submersible (drain pump) as per IS: 14220 / 1994 &

its latest amendments of following duty parameters flow rate 20 m^3/hr & 10 mtrs. head with

suitable motor as per IS: 14220 / 1994 & its latest amendments working on three phase 50Hz ± 3%,

415 V ± 10% rated speed 2900 RPM with DOL starter, cable, GI medium duty delivery pipes, specials,

valves, suction strainer, cable minimum 25 mtrs. etc. complete.

MOC-Impeller- High Tensile brass / LTB-II or superior material, Casing-CI FG 260, Pump & Motor

Shaft- SS 304, Bearing Bush- LTB-III.

(Discharge: 20 m3/Hr, Head: 10 Meter) 1.00 No. 15,840.00

25 Providing & Casting in situ. C.C. in grade M-15 (approx corresp. to prop. 1:2:4) ( propotion as mix

degine or as per table 9 of is 456 2000 in masses by Weigh batching ) using granite, quaetize trap

metal of size 6 mm to 20 mm for RCC work, including scaffoling centering, form work needle

vibrated consolidation curing comp. up to 6 meter depth or height ( excluding cost of reinforcement

and neat finishing) with centering and shutttering/ dishuttering etc. comp. for structure for other

than water retaining. 3.00 Cum 8,566.40

26 Chain Pully Block:

Providing and ITC of Chain Pully block with triple gear arrangement, lifting hook, load chain & hand

chain & locking devoce etc.

3 Tonne Electrically Motorized Operated, 6 m Lift 1.00 Set 22,560.00

27 MS Structure:

SITC of suitable size ISMB I Beam girder 10 mm and above thick, MS Channel, MS Angle, etc.

required for minimum 2 Ton capacity loading / unloading / lifting / lowering for making a structure

suitable for installation of chain pulley block so as to removable of the pump set for opeation and Metric

maintainace purposes to directly to load the same into the truck / pickup van, etc. complete. 0.60 Ton 84,281.00

28 MS Iron Ladder:

Providing and fixing at Site of work MS Iron ladder with RLY freight, loading, Unloading, Carting and

all Taxes etc. comp as directed including paints two coats etc comp. 200.00 kg 72.00

VOLUME: III Price Bid, Specification (Radhanpur-Santalpur RWSS)

29 Supply at Site, Storage, Erection, Installation, Testing & Commissioning of 300 mm NB full Bore

Electromagnetic flow meter PN 10 to be installed on common header piping. with factory

calibrated, Regular Power Operated, flanged connection, Flow sensor, Indicator, transmitter and

totaliser with all accessories viz. Automatic voltage stabilizer, surge arrestor, associated cables,

cabinets, hardwares, etc complete as per following specifications:

Flow meter/sensor:

DC pulsed type, IP 68 Protection, Flanged process connection as per IS 1538 or equivalent standard,

SS304/ Metallic Alloy Flow Tube, SS316/ SS 316 L/ Hastelloy Sensor, SS316/ Hastelloy Grounding

Ring/ Inbuilt Grounding Electrode, Neoprene/ Polyurethane/ Hard Rubber/ Rilsan lining, SS304/ Die

Cast Aluminium/ Carbon steel with Anticorrosive Paint Coil Housing with Junction Box, CS flanges.

Flow Transmitter/ Converter ( Remote Field Mounted):

Microprocessor based, Modular design, 2 line LCD for indication of actual flow rate, forward,

reverse, sum totaliser display, ±0.5% accuracy at 0.3 to 4 m/sec velocity, 4 to 20 mA with

HART/Modbus output, one scalable pulse, one status output, IP 67 protection, Die cast aluminium/

polycarbonate/ SS316 with Anticorrosive Paint/ PU finish with glass window enclosure, Inbuilt

EEPROM and Data Logger, 20 meters cable length for sensor to transmitter communication etc

alongwith wall mounted/ stand mounted cabinet. 1.00 No. 1,34,422.00

30 ELECTRICAL SECTION

SITC of 200 Amp. Approved make Four Pole LT Heavy Duty Switch Disconnector Fuse Unit Cubical

type for panel mounting complete with operating mechanism suitable to operate on 415V A.C. With

HRC fuses of suitable load confirming to IS. 13947 and errected on angle iron frame duly painted as

per relevent IS specification with red oxide as per Tech. Speci.Cat:III for receiving GEB power.

VOLUME: III Price Bid, Specification (Radhanpur-Santalpur RWSS)

31 Supply at Site, Storage , Erection, Installation, Testing & Commissioning of LV MCC Panel totally

enclosed, dust & bermin proof, indoor type, minimum degree of protection - IP 52 as per IS:

operation on 3-Phase, 4 Wire, 415V (±10%), 50Hz (±3%), Neutral effectively grounded, with

instrumentation compartments accomodating LED type indicating lamps, control contactors as per

IS: 13947, CT of accuracy class 1 as per IS: 2705, relays, meters & control MCBs, air insulated

electrolitic grade Aluminum busbar for three phase & neutral system with incomming breaker,

micro processor based air circuit breaker (electrically operated drawout type)/air break fixed type

MCCB with trip free mechanism, current limiting type as per IS: 8828, Motor Contractor (as per type

-2 coordination), Overload Relay with built-in single phasing prevention feature & auxiliary feeders

as per SLD drawings, momentary contact type push buttons, equipment fittings, bus bars, cable

boxes, cable gland, incoming & ougoing cable connection for 1100V grade, Aluminium/ Copper

conductor XLPE/ PVC insulated & PVC sheathed armoured cable, 10% spare terminals, power wiring

using 1100V grade, FRLS insulated copper conductor wires conforming to IS: 694 & 8130, cable

compartments/ alleys of minimum 300 mm size, GI/Al earth bus bar for entire length.

MCC shall be fabricated from cold rolled, coled annealed (CRCA) sheet steel & minimum thickness of

various members shall be as follows:Base Frame/ Channel/ Gland Plate - 3 mm, Load Bearing

Members/ Doors - 2 mm and Internal Partitions - 1.6 mm.

With Auto Transformer Starter of required KW (45 KW) with MCCB, Contactor, O/L relays, Cast resin

type CT, Digital MFM, Digital Ammeter, SPP, Timer, Total pump running timer with cummulative

reading for each outgoing feeders (1W+1S = 2 Feeders). Auto Transformer Starte shall be selected at

50 degree centigrate after derating.

The MCC Panel Enclosure dimensions- 1500(W) x 600(D) x 2175 (H).

The MCC Panel must comprise with Local Push Button Station for each motor.

Rate as per Elect.- Mech. SOR 2022-23, Section-E, Item No.- 41.1 - d, Pg. No.

Rate for 45 KW (1W+1S) as = 45 KW (2W+1S-1W)

i.e for Supply 203126.00-49172.00=153954.00 and ITC & Overhead

VOLUME: III Price Bid, Specification (Radhanpur-Santalpur RWSS)

32 1.1 kV Grade Cable- Alluminium Conductor:

Supply, laying, testing & commissioning 1.1 kV grade, XLPE insulated, stranded Aluminium

conductor, galvanised steel flat strip / round wire armoured including cable Termination (lug and

glands), extruded PVC type ST2 sheathed, heavy duty cable (to be laid on wall surface with

necessary clamps / in existing cable trench / cable trays / conduit / pipe sleeves at road crossing or

floor as per site requirement) conforming to IS:7098 (Part-1) & IEC:60502 (Part-1) of following sizes:

From SFU to MCC Panel (1 Run) -1 X 3.5 X 70 Sq.mm. 11.00 RMT 287.00

32.1 from MCC Panel to Individual Motor (1 Run) - 1 X 3 X 70 Sq.mm. 44.00 RMT 244.00

33 Supply at Site, Storage, Installation, Fabrication,Testing & commissioning of GI perforated Type

Cable Tray of size 150 mm wide x 35 mm Height x 2 mm Thick with returned edge/ flange,

fabricated from 2.0 mm thk sheet steel in the standard length of 2.5 mtrs,duly hot dipped

galvanized after fabrication as per IS 2629-1989/ IS 4759-1984 including accessories such as coupler

plates / fish plates, bends, tees, reducers, elbows, covers and electro-galvanized hardware etc,

erected on existing support as per specification for supporting of all types of cable. 30.00 RMT 296.00

34 Maintenance free Chemical Earthing

Supply of UL Listed Maintenance Free Earthing System made of copper bonded rod of 10 feet (3 mtr

approx.) length, 17.2 mm dia. (Minimum copper bonding shall be 0.25mm, suitable for 25 kA fault

current) along with Rod-to-Conductor connectors, 95% pure Carbon-Based Earth enhancement

material of 30kg, Pit Cover as required and as per specification.

For Electrical installation covering Transformers body, Motors/ Starters, LV MCC Panel, PDB/ SDB &

Lightning Protection System etc. 2.00 No. 4,539.00

35 Providing and erecting required size hot dip Galvinized Strip of size 50 mm width X 6 mm thickness

for earthing of HT/OCB/ACB/Transformer/LT Panel Board/Motors etc. using copper clamp for the

purpose of connecting panel body earth to earth pit etc complete as per site requirement.

VOLUME: III Price Bid, Specification (Radhanpur-Santalpur RWSS)

36 Supplying and erecting LED street light / Flood light fittings with High power White LEDs wattage of

3 Watt and above assembled on single MCPCB, efficiency more than 130 lm/w and corrosion free

High pressure die cast aluminum housing with smooth finish powder coated and heat sink extruded

aluminium with diffuser and Polycarbonate optics/ lenses, with toughened glass with company

mark/name engraved or embossed 160 to 270 V,Power Factor more than 0.95, THD < 10 %, CCT

3000 K to 5700K,Uniformity ratio >0.45, Luminaire efficacy> 100 lumens/watt . LED driver efficiency

> 85 %.( fittings required LM-79 & LM-80 certificates)(NOTE: Below description have shown ranges

of Wattage capacity of LED fittings.The Engineer incharge may select any wattage capacity between

the ranges shown.) (A) Street Light (IP-65), Surge protection -4KV integral and ,Light must have

440VAC line supply with over-voltage protection. Cat-III 60 watts 2.00 No. 4,948.00

37 Supplying and erecting Street light pole bracket comprising main B Class MS pipe of 4.2 cm/require

outside dia. complete with suitable B Class M.S. sleeve tubing of approx. 45cms.length and suitable

for 76.5mm/80mm/require size of pole top having nuts and bolts for fixing the brackets and having

spread of 0.5 mtr. Length with 110 deg.with vertical plane and suitable welded stiffener reducer and

nipple with check nut complete painted with one coat.of Red oxide / PU base primer and two coats

of Aluminium / PU paint. paint with following nos of arms.-Single Arm Bracket 0.5 Mtr 2.00 No. 446.00

38 Providing & erecting approved make XLPE (IS : 7098) (I) - 88 ISI mark armoured multistrand Copper

Cable 1100 volt to be laid . under ground or to be laid on wall with heavy duty clamp or on in

existing pipe at road crossing or floor and making of the ground as per original. (d) For 4 core x

mm2 (For LED Street Light) 50.00 RMT 81.00

39 Supplying and erecting LED indoor fittings with LEDs of wattage 0.2 Watt to 0.5 Watt assembled on

single MCPCB, with housing used as a heat sink shall be made of thick sheet Steel conforming to IS:

513/CRCA/ aluminium die cast powder coated and high U.V. & corrosion resistance with diffuser

with company mark/ name 120 to 300 V,Power Factor more than 0.9, THD < 10 %,CCT 3000 K to

6500K, Luminaire efficacy> 85 lumens/watt ,LED efficiency-110 lumens/wattLED driver efficiency >

CREE / OSRAM / PHILIPS Lumileds / NICHIA / SEOUL/Bridgelux make LED used for luminaire. ( fitting

required LM-79 & LM-80 Certificates)( d) 22-24 Watts, Surge - 2KV,IP-20, 4 feet Cat-II 4.00 No. 645.00

40 Supplying and fixing of the ceiling fans of approved make for electrical room with 1200mm sweep,

white color, double ball bearing, 300mm long down rod, Electronic type ANCHOR/MK make

regulator and accessories i.e. screws, wall nuts etc. and also providing and fixing of MS fan hook into

the RCC Slab. 1.00 No. 1,581.00

VOLUME: III Price Bid, Specification (Radhanpur-Santalpur RWSS)

41 Point wiring Arrangement:

Design, supply, erection, testing and commissioning of suitable general arrangement of point wiring

for pump house.

(a) Point Wiring for Fan & Lights with cable 2-1.5 sqmm & earthwire of 1.5 Sqm.mm (green) both

are of ISI marked 1.1 kv geade FRLS PVC insulated multisrand copper wire, in medium class Rigid

PVC pipe to be errected on wall/ ceiling complete with 6A Modular Type switch/bell push &

accessories and earth continuity of following type, erected on PVC/Metallic box, single mounting

base frame covered with textured/ metallic front plate modules erected on/ in wall/ceiling as per

pipe errected. with necessary Ceiling rose/ H.D. Connector as directed. 10.00 Point 351.00

42 Supplying Rubber Matting of 4.00 mm thickness as per IS 15652/IEC 61111 and of require length

and breadth with good insulation property for 22kv 4.00 sq.mt 1,017.00

43 Supplying and erecting floor mounting stand for keeping four nos. of FIRE buckets comprising

mm in length, 900 mm height frame made out of 30mm X30 mm X 4 mm angle iron with cross

supports for legs, welded with 4 hooks and duly painted with one coat of red lead and two coats of

approved enamelled silver paint. 1.00 Each 933.00

44 Supplying FIRE bucket round bottom of 9 litres capacity made out of 24 gauge G.I. sheet with extra

handle at bottom duly painted white inside and Red out side with FIRE mark, filled with dry-sand

and kept on existing stand provided or hung on wall hook. 4.00 Each 212.00

45 Providing printed Instruction Chart both in English and Gujarati and duly framed with front glasses

for treatment of person suffering fron electric shock. 2.00 No. 129.00

46 Providing and erecting metallic vetrified Danger Notice Board for Medium Voltage installation to be

erected 2.00 No. 69.00

47 Providing pair of Rubber Hand Gloves suitable for working on 11KV/22KV supply 1.00 Set 212.00

48 Supplying stand First AID box with antiseptic cream, medicine for use on wounds due burn, crepe

bandage, gauge bandage, medicated ready to use bandage (Band-aid) adhesive tape for medicinal

user, Scissors, anti-septic solution (savlon or similar) etc. (All above contents shall be of standard

makes) 1.00 No. 297.00

49 Providing and fixing 4.5 KG CO2 Type Fire Extinguisher As per IS.

[A] For 4.5 Kg Capacity. 2.00 Each 6,526.00

VOLUME: III Price Bid, Specification (Radhanpur-Santalpur RWSS)

I / We, am / are willing of carry out the work ........................ % above / below %................ age (Percentage should be writing

in figure and word below above at the tender rate mentioned above amount my / our tender workas under

1. Estimated cost put to tender 1. Estimated cost put to tender

2. Tender Cost. 2. Tender Cost.

3. Below Rs…………% below 3. Above Rs……………. % above

5. In word Rs…………………………. 5. In word Rs………………………

Executive Engineer

Signature of Contractor P.H. Work Division

VOLUME: III Price Bid, Specification (Radhanpur-Santalpur RWSS)

Volume-III: Price Bid Daisar Sump

BREAK UP FOR INTERIM PAYMENTS

Percentage Payment to

Item Description of Items

1 PUMPING STATION / STAFF QUARTERS /

MATERIAL SAFETY ROOM / PUMP ROOM

a. On approval of Designs 2.0 % of Quoted rate

b. On completion of Excavation & base slab 18.0 % of Quoted rate

c. On completion of vertical wall up to plinth 20.0 % of Quoted rate

d. Full supporting structure incl. ring beam and top 15.0 % of Quoted rate

e. On completion of pump house incl. fixing doors 10.0 % of Quoted rate

f. Plastering inside & outside with epoxy paint etc 10.0 % of Quoted rate

(completed with all respects)

g. Painting of letters, MS ladder pipe, railing and 15 % of Quoted rate

all miscellaneous items such as snowcem paints

in three coats etc. (completed with all respects)

h. After Completion 10 % of Quoted rate

2 GROUND (UNDERGROUND) LEVEL SERVICE

RESERVOIRS/SUMPS

a. On approval of designs 2 % of Quoted rate

b. On completion of excavation and base slab 18 % of Quoted rate

c. On completion of vertical wall and braces 20 % of Quoted rate

d. Full supporting structure including column, ring 15 % of Quoted rate

and completion of top slab / dome

e. Plastering inside & outside with epoxy etc. 10 % of Quoted rate

f. Procurement and fixing of inlet, outlet, washout, 15 % of Quoted rate

overflow pipes, valves, specials, chambers,

lighting arrester conductor and specials at site

g. Water level indictor, painting of letters, M.S 10 % of Quoted rate

ladder, pipes, railing and all miscellaneous items

such as snowcem paint in three coats etc

(Completed with all respect) including water

h. On hydraulic testing 10 % of Quoted rate

3 Miscellaneous work

A All other items such as encasing, columns 80% of quoted rate on

support for culvert, pipe bridges for Canal completion of works

/Drain/Khadi crossing, internal roads,

railway/highway crossing, Anchor/thrust blocks,

steel bridge for pipe crossing, Construction of

Compound Wall & Repairing and Renovation work

Volume-III: Price Bid Daisar Sump

B On commissioning of the system 20% of quoted rate

Volume-III: Price Bid Daisar Sump

DATA SHEET FOR CIVIL STRUCTURE

DATA SHEET FOR RCC U/G SUMP

Sr. No. Details DATA for RCC SUMP

1 Location/Capacity Dahisar SHW – 17.0 Lakh Lit.

2 Ground Level As per site (GL 34.81 mtr)

3 Bottom of Sump (Top of Outlet As per Design

4 Height As per Design

5 F.S.L. As per design

6 Foundation depth below G.L. As per S.B.C Report

7 Type of foundation RCC foundation (as per design) & S.B.C

8 Free Board 0.40 meter minimum (below Bottom

beam) or as per design

9 Normal Water Table As per S.B.C report

10 Dia of DI/CI pipe vertically Dia in mm

Double flange Inlet Outlet Wash out

As per Design (Minimum 300 mm Dia)

11 Length of pipes Inlet, sump to Outlet, Overflow

12 Size of Sluice Valve (IS- 13095) Same size for inlet, Outlet & Washout pipe

13 Size of Valve Chamber 1.30 x 1.30 x 1.50 mts. (3 No. Or As Per

i) Internal Dimension 1.0 mts. Depth (Average)

ii) Thickness of Masonry 23 cm

iii)Type of Masonry Brick Masonry in C.M. 1:6

iv) Plaster and pointing 15 mm thick C.M. 1:3

v) Foundation As Per Design

vi) Manhole Frame and Cover for R.C.C Precast 100 mm thick

vii) RCC Slab or Precast slab M–15: 10 cm thick

14 Cowl type ventilator 100 mm dia. 2 Nos minimum or as per

design (Minimum vent should be provided

as per design criteria) 15Kg/No

15 CI MH Frame and cover at top of 0.90 x 0.60 m (54 Kg) 2 Nos

16 Type of Construction RCC (As per Mix design)- M-300

17 Steel Fe – 415 or higher to be used

18 Inside Plaster 20 mm thick CM 1:1.5 niru finshed water

proofing compound.

19 Outside plaster 15 mm thick CM 1:1.5 sand face.

Volume-III: Price Bid Daisar Sump

20 Colour Approved 2 Coat Weather Proof Exterior

(Apex) paint with Primer should be

applied. (Approved Brand)

21 Staging MS Inside & Outside as per EIC

22 Other Requirement All other Requirement as per Price bid &

specifications Including all obligatory

requirement of department. SS pipe

railing, water level indicator, etc.

23 SBC SBC test shall be carried out by Agency for

design purpose.

24 IS The design of RCC Sumps shall be in

accordance with IS-1893-(Part-I) “Criteria

for Earthquake Resistant Design as per

Seismic Zone – IV of Structures" Part-I

General provisions and Buildings and IS -

1893-(Part-II (2002) " Liquid Retaining

Tanks (Elevated and Ground supported "

and IS 875 Part-III, IS 13920, IS

25 Seismic Zone IV

Volume-III: Price Bid Daisar Sump

GUJARAT WATER SUPPLY & SEWERAGE BOARD

(A WHOLLY OWNED GOVERNMENT OF GUJARAT UNDERTAKING)

Bid documents for “Design & Construction of RCC U/G Sump,

Lowering, laying and jointing MS Pipeline, construction Pump

House with Pumping Machinery & Electrification at Daisar SHW of

Radhanpur Group of Radhanpur-Santalpur RWSS, Ta: Santalpur,

Estimated Cost: Rs.

Detailed Specification

Executive Engineer

Public Health Works Division

Gujarat Water Supply & Sewerage Board

Volume-III: Price Bid Daisar Sump

VOLUME – III – B – Detailed specification

1.0 Detailed specification

Schedule - Detailed Specification

Volume-III: Price Bid Daisar Sump

NAME OF WORK: Design & Construction of RCC U/G Sump, Lowering, laying and jointing

MS Pipeline, construction Pump House with Pumping Machinery & Electrification at

Daisar SHW of Radhanpur Group of Radhanpur-Santalpur RWSS, Ta: Santalpur, Dist.

RCC GSR ( description of item for turnkey tender) Preparing structural design of RCC

Under Ground / Partially underground / above high ground level Reservoir of required

capacity as per relevant I.S. standards and constructing the same, including

excavation in all types of soil strata (including rock) including shoring strutting if

required, for loose soil / to protect from collapse, casting 100 mm thick P.C.C. levelling

course in M-15, Refilling the pit with proper soil and disposing of the surplus stuff at

all lead. Including cement plaster in CM 1:2 with approved water proofing compound to

all over inside container (i.e. walls, base, top slab/dome bottom etc. all). Including all

types of labour and material charges of lowering, laying, erecting / hosting and

jointing of pipe assembly to inlet, outlet overflow, washout and bye pass arrangement

as per hydraulic design. Providing and fixing accessories, CI Manhole frame and

cover, water level indicator, adequate cowl type ventilators or lantern type ventilator

with stainless steel jail. RCC chambers for valves. Providing and applying three coats

of cement paint / snowcem to the outside face of structure. It also includes

satisfactory water tightness test as per relevant I.S. code and painting name of

scheme and capacity on the tank as per direction of engineer in charge.

List of Indian Standards for Design of GSR / SUMP: -

The structural design of GSR shall be in accordance with provisions relevant I.S

(1) I.S. 3370 part I & II 2009 or its latest revision

(1.1) I.S. 3370 part III & IV 1965 or its latest revision

(2) I.S. 456 – 2000 or its latest revision.

(3) I.S. 1893 – 2000 – 1984 or its latest revision.

(4) I.S. 875, Part – 1 to 3, 1987 or its latest revision.

General Specifications: -

Volume-III: Price Bid Daisar Sump

(1) Water depth in container shall be adopted as per data of tender. Capacity shall be

calculated excluding free board of the reservoir. If water depth is not specified, the

suitable water depth / acceptable to field engineer in accordance with hydraulic

(2) Shape of schoanltl abine eard (oinp tpeladn f) or spceacpiaficeidty .by in data shall

be adopted in absence circular shape shall be adopted.

(3) Size shall be fixed as per availability of space (land area) at site / acceptable

engineer in charge.

(4) Effect of overlapping of pressure bulbs on soil due nearby structure and proposed

sump should be considered.

(5) Care shall be taken that no damage should occur to nearby existing structure.

Compensation shall be paid for the same by agency.

(6) The minimum concrete grade for RCC shall be M-30.

(7) HYSD Fe 415 / 500 grade reinforcing bars confirming to I.S. 1786 / 1139 shall be

considered in design. CRS / TMT bars shall be provided. In saline atmosphere

corrosion resistance stainless steel / HCR rebar shall be provided. Any other steel can

be used with approval of C.E./ in situation of non-availability in market without extra

(8) Minimum size (or thickness) of various components shall be provided as per tender

criteria / specifications in absence as per I.S./ Std. practice of G.W.S.S.B. Minimum

dimensions specified for various components in tender data / specifications shall be

provided without fail.

(9) The safe bearing capacity (SBC) shall be referred from SBC test report. In absence

of report, it shall be referred from data sheet. If poor soil is found / water table is met

with during excavation SBC shall be scientifically ascertained and design shall be

revise. No extra shall be paid for increase in quantity.

(10) DI pipes and special shall only be used if type is not specified in tender.

(11) The rate shall include cost of dewatering during excavation making all

arrangement when water table meets within depth.

(12) The structure shall be designed properly to resist uplift due to ground water table

specified in data or actual ground water table meets with during excavation. If GWT /

Uplift is mentioned in tender and during excavation it dose not meet 7.5% rate shall be

Volume-III: Price Bid Daisar Sump

(13) SS pipes railing shall be provided over sump periphery when sump height is ≥

meter above ground level.

(14.a) RCC staircase/RCC Steps should be provided from GL to sump top slab based

on the height of the GSR above/below the ground.

(14.b) RCC Staircase with SS railing to be provided inside reservoir container. BB

Masonry stair cabin to be provided to cover the same with MS safety door having

locking arrangement.

(15) Appearance of structure should be aesthetically good looking acceptable to

(16) Any change in size, shape, depth below GL, height above GL, water depth, F.B.,

size of member etc can be permitted in exceptional case due to site condition or

hydraulic design requirement by C.E. No extra shall be paid for change.

(17) Any change in data, dimensions, shape, water depth, reduction in size if permitted

by competent authority and if it reduces quantity then payment shall be reduced

(18) When capacity of GSR / Sump is > 20 lakh litres two or suitable compartments

acceptable to executive engineer shall be designed and provided.

(19) Agency shall engage qualified (at least graduate) consulting engineer for

designing the structure and he / she shall visit the site for guidance of work.

(20) 75%-part rate shall be payable for concrete, reinforcement and plastering items of

container until satisfactory hydraulic testing for water tightness is performed as per

tender condition. Till the work shall be treated as incomplete. Above conditions /

general specifications Sr. No. 1 to 20 are part and parcel of tender (contact) and prevail

over other provisions in tender.

D) Circular Sump with Water Table

17,00,000 ltr Capacity Sump at Daisar Hw

CRITERIA FOR PREPARATION OF DESIGNS OF RCC SUMP BY PRIVATE AGENCY

1.1.0 Capacity of the container of the tank shall be the volume of the water it can store

between the designed full supply level (F.S.L) and lowest supply level (L.S.L) i.e. the

level of the lip of the outlet pipe. Due allowance shall be made for 20 mm. thick

plastering the tank from inside, while calculating the capacity of the tank.

1.2.0 Freeboard is the vertical distance between F.S.L. and Soffit of covering slab or dome or

beam supporting the cover. In any case the free board shall not be less than 300 mm

form bottom of beam.

1.3.0 Height of the staging or height of the tower shall be the vertical difference between

L.S.L. of the tank and the average ground level at the site of tank.

Volume-III: Price Bid Daisar Sump

1.4.0 Dead storage shall be the storage capacity of water below L.S.L. depth of dead storage

shall be the vertical distance between the top outlet level and wash out level. The

washout pipe level shall be at the lowest portion of the container.

1.4.1 Minimum depth of water for dead storage shall be 100 mm even for flat bottom slab

and not more than 300 mm for inlet i.e. bottom dome slab type tank.

1.5.0 Water depth in the tank shall be the vertical distance between L.S.L. and F.S.L. of

1.6.0 The allowable bearing pressure or the safe bearing pressure on the strata as specified

in the table of IS 1004-1978 or its latest revision, whichever is less shall be considered

and design of foundation shall be based on this unit pressure unless specified.

1.6.1 Notwithstanding anything mentioned above regarding S.B.C. whenever the Engineer-in-

charge of design directs that bearing capacity shall be determined by carrying out

actual soil exploration and tests due to conditions as mentioned in para 2.0 of IS 1992-

1969 or latest revision. The same shall be carried out by a Government laboratory or

any other approved laboratory and allowable bearing capacity so arrived shall be taken

as the basis of design. The factor of safety adopted in case of actual test shall be as

per clause 6.1 (A) of IS 6403-1971.

2.0 GENERAL REQUIREMENTS:

2.1.0 Cement concrete shall be in accordance with IS 456-2000 fine and coarse aggregates shall

be confirming to IS 383-1963 or its latest revision. The selection of the type of fine and

coarse aggregate to be actually used shall be as directed by the Engineer-in-charge.

2.2.0 For parts of the tank in contact with stored water and closing vapor above FSL shall be in

concrete grade M300 or in richer grade.

2.3.0 Inlet, Outlet, Overflow and Washout pipe:

Cast iron flanged pipe of appropriate class shall only be used.

2.3.1 Inlet Pipe:

The size of inlet pipe shall be same that of rising main to ESR.

2.3.2 Outlet Pipe:

The outlet pipe shall be of one diameter higher as that of inlet pipe.

2.3.3 Overflow pipe:

The size of overflow pipe shall be one diameter higher than that of inlet pipe.

2.3.4 Washout Pipes:

Outlet cum washout arrangement shall be provided with sluice valves at GL. Detailed

drawing showing all the pipes, duck foot bends, chamber, sluice valves and other

necessary connection shall be furnished in the plan. Plain concrete block in M-150 for duck

foot bands shall be of minimum depth of 600 mm. The width of the block shall have an

offset minimum of 150 mm.

2.4.0 Water Level Indicator:

A water level indicator shall be provided for the tank reading depth of water in meters

with least count of 10 cm. The system shall consist of unborrowable material and shall be

simple and easy to maintain. The water level indicator shall be provided and fixed as

approved and directed by the Engineer-in-charge.

2.4.1 Access to roof for an entry to the inside of the tanks shall be provided. At roof level of the

tank the access to roof manhole from the ladder or stair shall be properly provided with

parapet or railing. At ground level or at walkway level the access forgoing up shall be

provided with a door and locking arrangement. Railing at roof level and at gallery level

shall be provided.

2.4.2 At least two manholes with frame and cover of CI medium type shall be provided with

ladder for entering into the container for maintenance purpose. The size of manhole

frame shall be 0.9 x 0.6-meter 75 kg.

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2.5.0 Lightening Arrestor:

Lightening arrestors shall be provided on the roof of the tank as per IS 2309-1969. Position

and height of lighting arrestors shall be such that the whole structure shall be enclosed

within dome having its apex at top and of the arrestors and generated by a line incline at

600 to the vertical. The arrestors shall be suitably earthed. Copper strip shall be covered

with GI pipe 25-mm dia up to 4-meter height from GL.

2.6.0 The roof of the tank shall be ventilated by providing cowls or ventilators with mosquito

proof met for ventilators. They shall be fixed with proper framing. Ventilation area shall

not be less than of (A) 0.04% of the free water surface when

cowl type ventilators are provided. (B) Cross sectional area of the inlet pipe. (C) Cross

sectional area of the outlet pipe.

2.7.1 All tanks shall be checked for seismic forces confirming to IS 1893-1975 or its latest

revision and wind forces also.

2.7.2 Water tank in vicinity of mines, galleries and blasting sites or in areas which may be

subjected to blasting sites or in areas which may be subjected to blast or shock, shall be

designed for the dynamic forces developed due to blast equipment.

2.7.3 Members of towers, which are primarily subjected to dynamic stresses, shall be

checked for ductility of the members at the joint.

2.7.4 Staircase and all columns shall be tied together just above foundation level by

structural members such as a braced or a tie ring beam.

2.8 Following shall be the minimum thickness of various members of the tank container.

Roof slab 150 mm

Bottom slab 200 mm

Roof Dome 100 mm

Vertical wall 200 mm

Inclined wall or shell requiring shuttering of one side 225 mm

(i) Slope with horizontal more than 30o 150 mm

(ii) -Do less than 30o 150 mm

2.9.0 Error up to 2 % in weights, forces, moments etc. in the design calculations may be

3.1.0 For all RCC and PCC component unit weight shall be taken as 25000 N/m3, 24000n/m3

respectively, allowance of platter up to 20 mm. Inside surface of container shall be taken

in to consideration of in normal circumstances.

3.2.0 Water load shall be taken as 10000n/m3.

3.3.0 Live load and snow load shall be taken as per IS: 875-1987 or its latest revision.

3.3.1 No live load may be assumed while designing the staging (or tower) and foundation for

3.3.2 Live load on gallery all-round the elevated tank shall be considered as 1500 n/m2.

3.4.0 Wind load as per Fig. i.e. basis maximum wind pressure or Indian including winds of short

duration as per IS 875- 1987 or latest revision shall be considered.

3.5.0 Seismic forces on the tower shall be as per IS 1893-1975 or its latest revision.

Wind and seismic forces shall not be assumed to act simultaneously.

INCREASES IN PERMISSIBLE STRESSES:

Where stresses due to wind or earth quack temperature & shrinkage effects are combined with

those due to dead, live and impact loads the stresses specified in table 13, 16 & 17 of 456-1978

may be increased up to a limit of 33.33%.

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4.1.1 Shape of the structure shall be as directed by Engineer-in-charge and shall be selected

depending upon site condition from the standard shape.

4.1.2 General description and salient feature as mentioned below of the design shall be not

approved by the Engineer-in-charge and shall be mentioned in the design before detail

design calculations start.

4.2 Sketch showing dimensional section, elevation with plan shall be given.

4.3.1 The safety against overturning of structure shall be computed quite accurately.

4.3.2 Design shall be based on the worst possible combination of various loads, moments, shears

and resultant stress in the tank for the following two cases.

(i) Tank Full 'A'

(ii) Tank Empty

Tank full means depth of water inside the container up to full height of the container without

consideration of free board.

Or safe bearing capacity of soil based on actual soil investigation report of the laboratory.

Position of sub soil water level.

Chemical analysis requires if sub soil water and soil where possibility of brackish/saline water is

Location of site on index plan with respect to latitude and longitude.

4.3.3 Design shall be based on accepted basis and methods of design as well as the provision of

IS 3370-1965, IS 456-1978, IS 1343-1960, IS 2210-1962, IS 2204-1962 etc. and their latest

revision. However, methods based on experimental investigation as mentioned in para

18.2 % "C" in IS 456-1978 shall not be entertained.

4.4.0 The parts of the structure neither in contact with the liquid on any face more enclosing

the space above the liquid as in the case of stages of a tower shall be designed on working

stress method on accordance with the requirement of IS 456-1978. Staging may be

designed on limit method as per IS 456-1978.

4.5.0 Design of members other than these excluded by above (i.e. roof, walls, floor etc. of the

container) shall be based on consolidation of adequate resistance of cracking as well as

adequate strength calculation of stresses shall be para s per 3.2.2 of IS 3370 (part-II)

or its latest revision.

4.5.1 PERMISSIBLE STRESS IN CONCRETE FOR RESISTANCE TO CRACKING:

For calculations relating to the resistance of members to cracking the permissible stresses

in tension (direct and due to bending) and shear shall confirm the values specified in

Table-I of IS 3370 (part-II 1965)

The permissible tensile stresses due to bending apply to the fact of the member in contact

with the liquid. In members less than 225 mm thick and

in contact with the liquid on one side, these permissible stress in bending apply to the

face remote from liquid.

4.5.2 FOR STRENGTH CALCULATION:

In strength calculation, the permissible concrete stresses shall be in accordance with para-

44 of IS 456-1978 or latest revision. Where the calculated shear stress in concrete alone

exceeds the permissible value reinforcement acting in conjunction with diagonal

compression in the concrete shall be provided to take the whole of the shear.

4.5.3 Permissible compressive stress (Directly only) in sheels (i.e. Top Dome, Conical Wall and

shall be reduced by 43% for 10 cm thick walls. For thickness more than 30 cm, the

compressive stress shall be reduced by 50% and for inter media thickness 10 cm. to 30 cm.

linear interpolation shall be done.

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4.6 PERMISSIBLE STRESSES IN STEEL:

4.6.1 For resistance to cracking the steel and the concrete are assumed to act together. For

checking the tensile stresses in un cracked concrete for avoidance of cracks, the tensile

stress in the steel shall be the product of the modular ratio and the

corresponding allowable tensile stress in concrete as per IS 3370(part-II) 1965 or its latest

revision. Modular ratio "M" for different concrete mix shall be taken as under:

Grade of Concrete Modular Ratio "M"

4.6.2 For strength calculation (concrete assumed to be cracked), the permissible stresses in

reinforcement shall be as per Table -2 of IS 3370(part-II) 1965 or its latest revision. For

steel, the stresses shall be as per IS 1139-1966 or its latest revision.

4.7.1 The analysis of staging of the tank shall be done by using any established method such as

portal method etc. The staging shall be analyzed from combination of dead, dead live

loads and wind seismic loads. The effect of continuity of beams of the junction shall be

properly accounted and column reaction worked out, for different condition of loading,

axial force, shear force, bending moments.

4.8.1 Modules of elasticity of concrete MEC shall be taken as 5000/FC where equal to

characteristic cube strength of concrete in N/m2 as per IS 456-2000.

4.8.2 Columns shall be checked for tensile stress for both the conditions as mentioned in para

4.3.2 in combination with axial tension and bending due to wind or seismic loads, and shall

be checked for bond for maximum tensile stress arrived.

4.8.3 Columns may be assumed to be fixed at the top of footing.

4.8.4 Water Tower in seismic zone (V) of IS 1393-1975 twin diagonal (crossed) backing of steel in

vertical plane in addition to the horizontal braking may be provided.

4.9.1 Reinforcement shall be provided on both faces of the load-bearing shaft. Minimum vertical

reinforcement in the shaft shall be of 0.4% of the gross concrete area required; Minimum

horizontal reinforcement shall be 0.3% of the gross concrete area. Required in ease, for

tower in high seismic zone (IV & V) minimum horizontal reinforced shall be 0.4% of the

gross concrete area; for before bars of medium tensile or height tensile steel the above

steel requirements may be reduced by 20 %.

4.9.2 Horizontal construction joints in shaft shall be as minimum as possible. On account of

minor in accordance in construction shaft the allowable direct compressive stress shall be

reduced by multiplying with 0.8% factor. On account of buckling reduction factor, if any,

shall be multiplied to the value 0.85. For the calculation of direct compressive stress the

contribution of steel shall be neglected.

4.9.3 Age factor for increasing strength shall not be considered.

4.9.4 Shaft shall be checked for tensile stress for worst condition in combination with axial

tension on bending due to wind or seismic load.

5.0 FOUNDATION:

5.1 The permissible increase in bearing pressure for different types of foundation shall be as

per table -I of IS 1893-1965 or its latest revision. When seismic forces are considered and

for wind forces it shall be as per IS 1904-1966 or its latest revision.

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5.2 For the purpose of the design of foundation the loading data shall be given the magnitude

of vertical load, lateral load and moments at top of footing (Foundation) level. The data

shall be made available, for both the cases as per para 4.3.2.

5.4.1 The foundation area, individual column footings, combined footings, angular rafts and

solid rafts shall be worked out on the basis of lower most value of the safe bearing

capacity or allowable bearing pressure values as derived from IS 1904-1978, IS 9403-1971,

IS 8009-1976 or their latest revision.

5.4.2 In case of purely cohesive and CI pipe of soil particulars attention should be given to IS

1903-1978 clause 6 & 7. Settlement shall be calculated as per IS 8009 (part I) 1976 for

5.4.3 In case of purely cohesion less soil, foundation shall be design for safe bearing capacity

and shall be checked for permissible total as well as differential settlement values as

given in relevant IS.

5.4.4 If the foundation consists of individual columns footing, minimum clear distance between

centers of column shall be equal to twice the width of footing and clear distance between

the edges of footing shall be not less than width of footings.

5.4.5 In case of soil beneath the footings are not of the same characteristics the footing shall be

designed for the soil having lowest SBC or ABP as the case may be. In such conditions the

permissible limits of total as well as differential settlement shall be limited to 75% of the

permissible limit given in IS code.

5.4.6 For special type of foundations like well foundation under beam pipe foundation etc.,

decision of Superintending Engineer, Public health Design Circle shall be final and binding

to the designer.

5.4.7 Classification of soil and all characteristics of soil relevance to BSBC and APB shall be as

per the soil in irrigation reports of Government stipulation. Government approved

5.5 For the design of foundation angular or solid raft type, the "PLACE THEORY" shall be

5.6 In normal circumstances minimum 100-mm thick plain cement concrete with 100 mm

projection around in Grade M 100 with coarse aggregate as metal shall be provided as

leveling course. Where injurious soil progressive water is expected the leveling course

shall be grade not weaker than M 15 and if necessary, Sulphate resisting or the special

cement shall be used. The ground level within the foundation area of the structure shall

be consolidated properly with a suitable slope to drain out rainwater outside the

6.1 MINIMUM REINFORCEMENT FOR WATER RETAINING MEMBER:

6.1.1 The minimum reinforcement in walls, floors, roofs, in each of two directions at right angle

shall have an area of 0.3% of the concrete selection in that direction for sections up to

100.00 mm thick. For section for thickness greater than 100 mm and less than 450 mm

thick, minimum reinforcement each of two directions shall be nearly deducted from at

0.3% for 100 mm thick sections or greater two layers of reinforcing steel shall be place one

near each face of the section to make up to minimum reinforcement specified in this

6.1.1 The minimum reinforcement specified in this 6.1 above may be decrease by 20 % in case of

high yield strength bars confirming to IS 1786-1976 or IS 1139-1966.

6.2.1 Minimum clear cover to reinforcement under normal conditions shall be as per para

26.4 of IS 456-2000 or latest revision

6.2.2 For liquid faces of parts of members either in contact with the liquid or enclosing the

space above the liquid shall be as per para 7.2 IS 3370 (part-I 1965) or as per its latest

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6.2.3 In case of Raft Foundation, the cover to reinforcement shall be as per 4.6.2 of IS

(part-I) 1973 or as per its latest revision.

6.2.4 In case of "shaft" the cover to reinforcement shall be as under;

Horizontal 15 mm

6.3 For members of structure in contact with water, effective cover shall not be more than

mm. Even bars subjected to bending stress, or bars subjected to tension due pure tension

in the member the effective cover shall not more than 75 mm.

6.4.1 Spacing of reinforcement shall be as per para 26.3 IS 456-2000.

6.4.2 Spacing of lateral ties for column shall satisfying provision of para 25.3.2 'C' of IS

6.4.3 The additional suggested criteria for reinforcing steel which accounts for existing

moments, tension etc. i.e. other than temperature or binding steel shall comprise of

minimum 8 mm for deformed or 10 mm mild steel bars.

6.4.4 The spacing between two para in main reinforcement shall distribution steel, stirrups,

links etc. shall not exceed 30 cm.

6.5 For members of the container, the maximum diameter of reinforcement in tension shall

not exceed as given below depending upon the geometrical percentage of reinforcement.

(Ratio of tensile steel to gross is concrete.)

Up to 1.0% : 16 mm dia.

Up to 1.5% : 22 mm dia.

Up to 2.0% : 25 mm dia.

1.0 In case of dispute regarding interpretation any above clause, the decision of the

Superintending Engineer, Public Health Circle, Concerned will be binding to the Designer.

2.0 In case of any clauses not included in the above criteria the decision of the Superintending

Engineer, Public Health Design Circle will be final and binding to the Designer.

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DATA SHEET FOR CIVIL STRUCTURE

DATA SHEET FOR RCC U/G SUMP

Sr. No. Details DATA for RCC SUMP

1 Location/Capacity 1) Dahisar SHW – 17.0 Lakh Lit.

2 Ground Level As per site (GL 34.81 mtr)

3 Bottom of Sump (Top of Outlet As per Design

4 Height As per Design

5 F.S.L. As per design

6 Foundation depth below G.L. As per S.B.C Report

7 Type of foundation RCC foundation (as per design) & S.B.C

8 Free Board 0.40 meter minimum (below Bottom

beam) or As per design

9 Normal Water Table As per S.B.C report

10 Dia of DI/CI pipe vertically Dia in mm

Double flange Inlet Outlet Wash out

As per Design (Minimum 300 mm Dia)

11 Length of pipes Inlet, sump to Outlet, Overflow

12 Size of Sluice Valve (IS- 13095) Same size for inlet, Outlet & Washout pipe

13 Size of Valve Chamber 1.30 x 1.30 x 1.50 mts. (3 No. Or As Per

i) Internal Dimension 1.0 mts. Depth (Average)

ii) Thickness of Masonry 23 cm

iii)Type of Masonry Brick Masonry in C.M. 1:6

iv) Plaster and pointing 15 mm thick C.M. 1:3

v) Foundation As Per Design

vi) Manhole Frame and Cover for R.C.C Precast 100 mm thick

vii) RCC Slab or Precast slab M–15 : 10 cm thick

14 Cowl type ventilator 100 mm dia. 2 Nos minimum or as per

design (Minimum vent should be provided

as per design criteria) 15Kg/No

15 CI MH Frame and cover at top of 0.90 x 0.60 m (54 Kg) 2 Nos

16 Type of Construction RCC (As per Mix design)- M-300

17 Steel Fe – 415 or higher to be used

18 Inside Plaster 20 mm thick CM 1:1.5 niru finshed water

proofing compound.

19 Outside plaster 15 mm thick CM 1:1.5 sand face.

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20 Colour Approved 2 Coat Weather Proof Exterior

(Apex) paint with Primer should be

applied. (Approved Brand)

21 Staging MS Inside & Outside as per EIC

22 Other Requirement All other Requirement as per Price bid &

specifications Including all obligatory

requirement of department. SS pipe

railing, water level indicator, etc.

23 SBC SBC test shall be carried out by Agency for

design purpose.

24 IS The design of RCC Sumps shall be in

accordance with IS-1893-(Part-I) “Criteria

for Earthquake Resistant Design as per

Seismic Zone – III of Structures" Part-I

General provisions and Buildings and IS -

1893-(Part-II (2002) " Liquid Retaining

Tanks (Elevated and Ground supported "

and IS 875 Part-III, IS 13920, IS

25 Seismic Zone IV

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BREAK UP FOR INTERIM PAYMENTS

Percentage Payment to

Item Description of Items

1 PUMPING STATION / STAFF QUARTERS /

MATERIAL SAFETY ROOM / PUMP ROOM

i. On approval of Designs 2.0 % of Quoted rate

j. On completion of Excavation & base slab 18.0 % of Quoted rate

k. On completion of vertical wall up to plinth 20.0 % of Quoted rate

l. Full supporting structure incl. ring beam and top 15.0 % of Quoted rate

m. On completion of pump house incl. fixing doors 10.0 % of Quoted rate

n. Plastering inside & outside with epoxy paint etc 10.0 % of Quoted rate

(completed with all respects)

o. Painting of letters, MS ladder pipe, railing and 15 % of Quoted rate

all miscellaneous items such as snowcem paints

in three coats etc. (completed with all respects)

p. After Completion 10 % of Quoted rate

2 GROUND (UNDERGROUND) LEVEL SERVICE

RESERVOIRS/SUMPS

i. On approval of designs 2 % of Quoted rate

j. On completion of excavation and base slab 18 % of Quoted rate

k. On completion of vertical wall and braces 20 % of Quoted rate

l. Full supporting structure including column, ring 15 % of Quoted rate

and completion of top slab / dome

m. Plastering inside & outside with epoxy etc. 10 % of Quoted rate

n. Procurement and fixing of inlet, outlet, washout, 15 % of Quoted rate

overflow pipes, valves, specials, chambers,

lighting arrester conductor and specials at site

o. Water level indictor, painting of letters, M.S 10 % of Quoted rate

ladder, pipes, railing and all miscellaneous items

such as snowcem paint in three coats etc

(Completed with all respect) including water

p. On hydraulic testing 10 % of Quoted rate

3 Miscellaneous work

A All other items such as encasing, columns 80% of quoted rate on

support for culvert, pipe bridges for Canal completion of works

/Drain/Khadi crossing, internal roads,

railway/highway crossing, Anchor/thrust blocks,

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steel bridge for pipe crossing, Construction of

Compound Wall & Repairing and Renovation work

B On commissioning of the system 20% of quoted rate

L, L & J of MS Pipe (with 3 LPE coating & with lining or epoxy)

Lowering, laying, jointing & welding in position to correct line & level M.S. Pipe with

outer side 3 LPE coating & inside solvent free liquid epoxy lining on pedestal or chairs

upon prepared formation or prepared bedding in trenches the rates include

conveyance from store to site of work loading, unloading, heat shrink sleeve jointing

hydrotesting etc. Complete.

323.9mm dia with 5.6mm thickness

The pipe shall be lowered into the trenches by removing only one or two struts at a time. It shall be

seen that no part of the shoring is disturbed or damaged and, if necessary, additional temporary

struts may be fixed during the lowering operations. It shall also be necessary to see that the outside

coating of pipe is not damaged in anyway during the lowering and assembling

After the pipe is lowered into the trench, it shall be laid in correct line and level by using the leveling

instruments, sight rails, theodolite, etc. Care shall be taken to see that the longitudinal joints of two

consecutive pipes at each circumferential joints are staggered by 90°. While assembling the pipes,

the ends shall have to be brought close enough to leave a uniform gap not exceeding 4mm. If

necessary, a marginal cut may be taken to ensure a close fit of the pipe faces. For this purpose, only

experienced cutters who can make uniform and straight cuts, shall be permitted to cut the faces of

the pipes. No extra payment shall be made for such marginal cutting. There shall be no lateral

displacement between the pipe faces to be joined. If necessary, spiders from inside and tightening

rings from outside shall be used to bring the two ends in perfect contact and alignment. It may also

be necessary to use jacks for this purpose. In no case shall hammering or longitudinal slitting be

permitted. When the pipe is properly assembled and checked for correct line and level, it shall be

firmly supported on wooden beams and wedges and tack welded. Some portion of the trench may be

refilled at this stage so as to prevent the pipeline from losing its alignment. The tack welded

circumferential joints shall then be welded fully. Only experienced welders, who shall be tested from

time to time shall be permitted to carry out the welding work.

On completion of the pipe jointing and external protection, the trench shall be cleaned of outside

coating rebound. The welding shall be filled and compacted in 150mm layers with the bedding

material. Backfilling shall be carried out as detailed here under.

Precautions against Floatation

When the pipeline laid underground or above ground in a long narrow cutting gets submerged in

water collected in the trench of cutting it is subjected to an uplift pressure due to buoyancy and is

likely to float if completely or partly empty. In the design of pipelines, provision is to be made to

safeguard against floatation providing sufficient overburden or by providing sufficient dead weight by

means of blocks, etc. Factor of safety for calculations for check against floating shall be taken as 1.2.

In the case of works extending over one or more monsoon seasons, however, special care and

precautions are necessary during the progress of work on this account. The Contractor shall close

down pipe laying operations well in time for the monsoon. The work of providing blocks, refilling the

earth to the required level, compacting the same, etc. shall always be done as soon as the pipeline in

the cutting has been laid.

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The Contractor shall see that the water shall not be allowed to accumulate in open trenches. Where

work is in an incomplete stage, precautionary work, such as blank-flanging in the open ends of the

pipeline and filling the pipeline with water etc. shall be taken up as directed by the Engineer.

Such works shall be to the Contractor's account and no separate payment shall be made for the same.

The Contractor's rate for pipe laying shall be deemed to include such precautionary measures against

Protection of the pipeline against floatation during the Contract Period shall be the responsibility of

the Contractor. Should any section of the pipeline float due to his negligence, etc. the entire cost of

laying it again to the correct line and level shall be to his account.

CLEANING, DISINFECTIONING AND COMMISSIONING OF THE PIPELINE

Upon completion of a newly laid main, the main shall be disinfected as directed by the Engineer.

The main shall be flushed prior to disinfection except when the tablet method is used. After initial

flushing, the hypochlorite solution shall be applied to the water main with mechanically or

electrically powered chemical feed pump designed for feeding chlorine solutions. For small

applications, the solution may be fed with a hand pump.

In the case of main of large diameter, water from the existing distribution system or other approved

source of supply shall be made to flow at a constant measured rate into the newly laid pipe line. The

water shall receive a dose of chlorine also fed at a constant measured rate. The two rates shall be

proportioned so that the concentration in the water entering the pipeline is maintained at no less

than 300 mg/l. The chlorine shall be applied continuously and for a sufficient period to develop a

solid column of 'Slug' of chlorinated water that will as it passes along the line expose all interior

surfaces to a concentration of at least 300 mg/l. for at least 3 hours. As the chlorinated water flows

past tees and crosses related valves and hydrants shall be operated so as to disinfect the

In the case of newly laid mains in which scrupulous cleanliness has been exercised the tablet method

can be adopted and, in this method, the initial flushing is dispensed with. The calcium hypochlorite

tablets are placed in each section of pipe and also in hydrants, hydrant branches and other

appurtenances. The tablets shall be attached by an adhesive and must be at the top of the main. The

main shall then be filled with water and the water shall remain in the pipe for at least 24 hours.

After the applicable retention period, the heavily chlorinated water shall be flushed from the main

until the chlorine concentration in the water leaving the mains is not higher than that generally

prevailing in the system or less than 1 mg/l.

After final flushing and before the water main is placed in service, a sample or samples of water shall

be collected from the end of the line and tested for bacteriological quality and shall show the

absence of coliform organisms. If the initial disinfection fails to produce satisfactory samples,

disinfection shall be repeated until satisfactory, samples are obtained before the main is placed in

The Contractor is expected to carry out the disinfection work as a part of laying the pipes and his

rates for laying the pipes should include the disinfection and other connected works till the main is

placed in service, unless otherwise specified in the schedule.

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DISTANCE INDICATORS AND MARKINGS

The Contractor shall supply and fix indicators on either side of major crossings along the buried pipe

line. Indicators shall consist of 10 cm x 10 cm precast concrete posts 1.25 meter long, set 0.75 meter

into the ground and painted white above ground level. The description shall be written in blue at one

face of the precast post.

In case of the pipeline laid above ground details such as chain age, Invert levels of pipe,

appurtenance number, pedestal / saddle number, culvert number, anchor / thrust block number

etc., shall be suitably marked either on the pipeline or the supporting structure etc., in distinct

color. The Bidder / Contractor shall include the cost of this in his rates for the other items.

Connection of Pipeline:

Contractor shell Carrey out connection work of new laid pipeline with existing pipeline at both end in

such a way that there is no obstruct in flow. Generally, connection shell be “Y” type manner so that

water flow diverts easily in new pipeline. Necessary protection like thrust block shell be cast at both

end connection for preventing pipeline from damage. Contractor also repairs outside gunniting of old

pipeline after connecting with new one.

Mode of Measurement & Payment: The payment shall be made on RMT as per

Excavation for pipe line trenches for water supply, sewerage line, manhole etc. all with

shoring and struting if required as per required gradient and line including safety

provisions using site rails and stacking excavated stuff including up to all required

lead cleaning the site etc. complete for all lifts and strata as specified.

In all sorts of soil and soft murrum

Upto 1.5mtr Depth

1.5 to 3.0 mtr Depth

1.1 The excavation for trenches will generally, refer to open excavation for trenches in wet / dry

conditions for pipe laying work.

CLEARING OF SITES:

The site on which the pipelines are to be laid and shown on plan and the area required for setting

out and other operations shall be cleared and all obstruction loose stones and materials, rubbish of

all kinds, stumps, brushwood as trees shall be removed as directed the roots shall be entirely

The products of the clearing to restocked in such a place and in such a manner, as directed by

the engineer in charge.

In jungle clearings, all trees not specially marked for preservation, bamboo’s jungle wood and

brushwood shall be cut down their roots grubbed up. All wood and materials from the clearing

shall be the property of the Board shall be arranged as directed by the Board Engineer or his

authorized agent, the material pronounced as useful by the Engineer will be conveyed and

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properly stacked as directed within the specified limit. Unless materials will be burnt or otherwise

disposed of as directed.

All holes or hollows whether originally existing or produced by digging up roots, shall be carefully

filled up with earth, well earth, well rammed leveled off, as may be directed.

3.0 SETTING OUT:

The center lines of all pipe trenches etc. shall be given by the Engineer-in-charge and it will be

the responsibility of the contractor to install substantial reference marks, bench marks, etc. and

maintain then as long as required true to line, level curve and slopes. The contractor shall assure

full responsibility for alignment, and dimension of trench.

The labor materials etc. required for setting out and establishing benchmarks and other reference

marks shall be arranged by the contractor at his own cost.

The excavation incl. Bailing out of water for the pipe trenches shall also incl. Removal of all

materials of whatever nature and whether wet or dry condition necessary for laying of pipelines

exactly in accordance with alignment, levels grades and curves shown on the plans or as directed

by the Engineer-in-charge. Trenches shall be excavated to the exact width and depth according to

the size of pipe and the sides shall be left vertical as far as possible or according to the angle of

repose of various soils. Unless there is a specific extra provision in the contract for shoring and

strutting or for cutting side slopes the contractor shall at his own cost do the necessary shoring

and strutting or cutting of slopes to a safe of repose or both approved by the Engineer-in-charge.

As per Site condition if Extra width or depth require then prior permission of concern chief

engineer is required. The contractor shall notify the Engineer before starting excavation to enable

him to take cross sectional levels for purpose of measurements before the ground is disturbed. The

bottom of the trenches shall be leveled both longitudinally and transversely or slopped as directed

by the Engineer. The contractor shall at his own cost to remove such portions of boulders or rocks,

as are rectified to make the bottom of the trench level. No filling shall be allowed to bring the

trench to level. If by contractor’s mistake excavation is made deeper than shown on the plans and

if ordered by the Engineer the extra depth shall have to be made with selected excavated stuff

only with watering, remedying etc. as directed, by the Engineer and at the cost of the contractor.

Other hard excavation shall be cleared of all sorts and loose materials and cut to firm surface,

either level, stepped as directed by the Engineer. The Engineer may order such charges in the

dimensions and alignment of pipe trench as may be deemed necessary to secure satisfactory cover

over pipeline. The contractor shall, at his own expense, make provision for bailing out of draining

water and the trenches shall be kept free of water, during laying work.

After each excavation is completed, the contractor shall notify the Engineer to that effect and no

laying of pipeline will be allowed to laid until Engineer has approved the depth and dimensions of

trenches level and measurements.

The minimum width of trench should be 25 CM on each side of the pipe the rate includes cost

of dewatering, blasting if required and as per detailed specification etc complete.

5.0 SHORING AND STRUTTING:

Shoring & strutting and dewatering if required shall have to be carried out by the contractor, for

which any extra charge will not be paid During excavation if water connections, sewage

connections, telephone lines khalkuva (soak pits) etc. are damaged by the contractor, the same

shall have to be restored by the contractor without any extra payment.

The trenches shall be strongly fenced and red-light signal shall be kept at night and

arrangement of watchman to prevent accidents should be done, sufficient care protective

measure shall be taken to see that the excavation shall not affect or damage the adjoining

structure. The contractor shall be entirely responsible for any injury to life and damage to the

properties etc. Necessary protection works such as guide ropes, crossing places, barricades,

caution boards etc. shall be provided by the contractor.

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7.0 The excavation in all sorts of soil, hard murram, soft rock or hard rock or any type of soil

shall have to be carried out up to the required depth by the agency, no extra payment shall be

given for soft/ hard rock.

8 DISPOSALS OF EXCAVATED STUFF

No excavated stuff from trench are to be placed even temporarily nearer than 1.5 meter or

greater distance up to 90 meter or as prescribed by the Engineer from the outer edge of trench.

All excavated material will be the property of the board. The rate of excavated includes sorting

out of useful materials and stacking then separately as directed within specified lead. The

excavated stuff suitable and useful for refilling or for other use shall be stacked at convenient

places. The materials not useful in any wet shall be disposal off as directed by the Engineer from

the outer edge of trench.

8.2 The site should be cleared off on completion of work.

9.0 ADDITIONAL REQUIREMENTS

At the joints of pipes, the trench shall be excavated to an additional depth of 15 cm. and

width of 30 cm. And length of 15 cm. beyond the edge of collar on both the sides or as directed.

The rate includes for such extra excavation made at the joints. The trenches shall be excavated

perfectly in straight line. The bottom of the trench shall be kept as per invert level or as directed.

To maintain the proper slop the usual method of site rails and boning rods shall be adopted. The

contractor shall have to provide and fix and maintain sight rails and boning rod without any extra

9.1 If the contractor fails or makes delay to give hydraulic test of the pipe line laid in any of the

section, without any genuine reason, he shall be responsible to get any part of the length trenches

refill in such case i.e. before tasting for safety of pedestrian and/or vehicular traffic as found

necessary by the engineer-in-charge without any extra cost. If found necessary any directed by the

Engineer-in-charge. The contractor shall have to excavate the refilled trenches, during hydraulic

test without any extra cost.

At all road crossings, trenches shall be excavated only for half width of the road and pipe shall

be laid. The other half shall be excavated only after back filling over the laid pipeline is done so as

to make it suitable for the traffic. The contractor shall provide direction when the pipeline is to be

laid along the road as required and shall maintain the diversion or any part of it, without any extra

cost. At all road crossings, the pipe shall be laid below the crest of read.

9.2 The contractor shall break the road surface by excavation chiseling to the exact width

and length as shown on the drawing or as directed by the Engineer-in-charge.

The excavated stuff shall be deposited in uniform layers to avoid mixing with other kind of

materials at non-objectionable place or as directed by the Engineer-in-charge.

MEASURMENT AND PAYMENT

As per Price bid or Payment Schedule.

This item of excavation shall include unless and otherwise mentioned.

(a) Clearing of site

(b) Setting out work including all materials and labour.

(c) Providing and subsequently removing, shoring and strutting outing slopes etc.

(d) Excavation and removal and staking of all excavated stuff as directed.

(e) Necessary protection including labour materials equipment etc. to ensure safety and

protection against risk or accident.

(f) Providing facilities for inspection and damage to property if caused during progress of work.

(g) Compensation for injury to life and damage to property if caused during progress of work.

(h) Restoring of water supply connections, sewer connections, telephone

lines, khalkuva soapiest etc. if damaged by contractor without extra

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(i) Dewatering of excavated pit trench during the progress of work.

(j) Clearing the site on completion of works directed by the Engineer.

Mode of Measurement & Payment:

The payment shall be made on Cum as per Schedule-B.

Refilling the pipeline trenches incl. ramming, watering, consolidating disposal of

surplus stuff as directed within a radius of 3 km. Refilling as directed

On completion of the pipe laying operations in any section, for a length of about 100m and while

further work is still in progress, refilling of trenches shall be started by the Contractor with a view

of restricting the length of open trenches. Pipe laying shall closely follow the progress of Trench

Excavation and the Contractor shall not permit unreasonably excessive lengths of trench excavation

to remain open while awaiting testing of the pipeline. If the Engineer considers that the Contractor

is not complying with any of the foregoing requirements, he may prohibit further trench excavation

until he is satisfied with the progress of laying and testing of pipes and refilling of trenches. The

excavated material nearest to the trench shall be used filling. Care shall be taken during backfilling,

not to injure or disturb the pipes, joints or coating. Filling shall be carried out simultaneously on

both sides of the pipes so that unequal pressure does not occur. Walking or working on the

completed pipeline unless the trench has been filled to height of at least 30cm over the top of the

pipe except as may be necessary for tamping etc., during backfilling work.

The remaining portion of the trench may be filled in with a mixture of hard and soft material free

from boulders and clods of earth larger than 150mm in size if sufficient quantity of good earth and

murrum are not available. The trench shall be refilled so as to build up to the original ground level,

keeping due allowance for subsequent settlement likely to take place. The top 300mm layer or

fertile agricultural soil shall be kept aside during excavation and shall be laid in layers near ground

level during refilling.

To prevent buckling of pipe shell of diameters 1200mm and above, pipes shall be strutted from

inside while the work of refilling is in progress, for which no separate payment shall be made.

Strutting shall be done by means of strong spiders having at least 6 arms which shall be sufficiently

stiff to resist all deformation. Spiders shall be provided at a maximum interval of 2m & shall be

welded in such a way that internal coating does not get burnt.

The Engineer shall, at all times, have powers to decide which portion of the excavated materials

shall be for filling and in which portion of the site and in what manner it shall be so used.

If any material remains as surplus it shall be disposed of as directed by the Engineer, which includes

loading, unloading, transporting and spreading as directed within all lead. If the Contractor fails to

remove the earth from site within 7 days after the period specified in a written notice, the Engineer

may arrange to carry out such work at the Contractor's risk and cost or may impose such fine for

such omission as he may deem fit. Particular care shall be taken to keep the trench dry during the

entire refilling operation.

If suitable material for refilling is not available for excavation the Contractor shall bring earth,

murrum of approved quality as directed by the Engineer.

No mechanical plant other than approved compacting equipment shall run over or operate within

the trench until backfilling has reached its final level or the approval of the Engineer has been

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Subsidence in filling in : Should any subsidence take place either in the filling of the trenches or

near about it during the maintenance period of 24 months from the completion of the Contract

Works, the Contractor shall make good the same at his own cost or the Engineer may without notice

to the Contractor, make good the same in any way and with any material that he may think proper,

at the expense of the Contractor. The Engineer may also, if he anticipates occurrence of any

subsidence, employ persons to give him timely notice of the necessity of making good the same, and

the expenses on this account shall be charged to the Contractor.

Mode of Measurement & Payment:

The payment shall be made on Cum as per Schedule-B.

Gas cutting (Either square cut or V cut) pipes, plates etc. including all costs for the

followng thickness.

Above 5 mm up to 10 mm

Gas cutting if required for preparing in site distance pieces, straps etc. and cutting out holes

in the pipe line shall have to be carried out by the contractor at his own cost. After cutting the

edges shall be made smooth and even by using electrical or pneumatic grinder so as to

remove all inequalities. Care shall be taken to see that the shape of the material cut does not

defect in any way at the time of cutting.

The rate shall include the welding equipments, tools and plant, welding machine and required

materials for gas cutting work etc. complete. And shall be paid on running meter basis as per

work done for relevant thickness of plates as shown in schedule-B of the Tender.

Mode of Measurement & Payment:

The payment shall be made on Rmt basis as per relevant item (class) mentioned in item of

schedule ‘B’ of the tender. (Item is including all taxes, Insurance transportation freight

charges, octroi, Inspection charges, loading unloading, carting to department store, stacking

Extra Welding for fixing various appartances Welding in all positions with required

number runs, for M.S.Pipes internally and/or externally including gauging wherever

necessary, fixing appurtenances and other accessories in connection with pipe laying

work as per specification. As above for Butt Joints: Plate thickness

Welding for Pipe thickness 4 mm to 7mm

SPECIFICATIONS FOR WELDING:

These specifications cover shop welding as well as site welding for requirement of M.S. pipe

in particular length and M.S. specials. Following types of joints are considered for connecting

the pipes or pipe and specials.

Fillet weld with swaging of one end of pipe

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But weld without swaging of one end of pipe.

WELDING UNDER RAIN AND STRONG WIND:

If welding is to be done during rain or strong wind, suitable protection shall be provided for

the parts to be welded and the welder. Pre-heating of electrodes shall be done so as to

remove any moisture. Where this is not practicable, no welding shall be done on piping

under such conditions.

All the types of bends, scour teed, air valve tees, tail pieces of valves and water meters etc.

shall be fabricated as per standard practice from M.S. pipe to be supplied by Contractor. The

contractor shall have to provide M.S. pipe pieces and 18 to 20 mm thick flanges of required

diameter for branch of tees, reducer, enlargers, etc. and paid on m. basis in item No.

supply of M.S. pipe. Fillet or butt weld as may be required shall do joint. Holes of

appropriate diameter shall be drilled in flanges of specials at appropriate spacing to facilitate

jointing of sluice valves, water meter, air valves and other types of valves.

The following does are applicable for welding:

IS: 814 codes for covered electrode for metal Arc welding for mild steel.

IS: 815 CLASSIFICATION AND CODING OF COVERED ELECTRODES FOR METAL Arc

WELDING OF MILD STEEL AND LOW ALLOY HIGH TENSILTE STEEL.

IS: 1663 Part – 1 / part – li regarding method of tensile testing of steel sheets and stripes.

IS: 3600 codes of procedure for testing of fusion welding joints and weld metal in steel.

The contractor shall use preferably Advani Orelikon overcord S.S. Greecon (Blue) or other

electrodes as approved by Engineer-in-Charge depending upon the thickness of the plate

and type of joint. They shall use standard current and Arc Voltage required for the machine

in use as per manufacturer’s directions. Welding electrode shall conform to test procedure of

IS:814 and IS:815. The contractor shall submit manufacturer’s test certificate for each batch

of electrode use by him. Electrodes shall be stored unopened in original containers.

Electrodes when used shall be free of rust, oil, grease and all other matter which could be

harmful for the good quality of welding.

QUALIFICATION OF WELDERS:

Only such welders who are experienced and whose workmanship is satisfactory shall be

employed for the work. Welders will be individually tested for the welding skill before they are

allowed to work.

WELDING PROCESS:

All welds shall be made down – hand by manual or automatic shielded arc welding process.

Welding shall be done so that there shall be through fusion and complete penetration.

Sealing runs in the inside shall be done manually. The joints for seams and circular welding

shall be square but as per standard practice as per of IS:816 shall be accepted.

END PREPARATION:

Ends to be welded will be preferably made by machining. However, preparation of ends may

be made by flame cutting, provided all grooves and irregularities are ground off and all the

oxidation is removed.

The ends to be welded shall be properly cleaned. All paint, oil, grease, rust and oxide as well

as earth, sand or any other material sticking which could be harmful to the welding should be

removed. Ends shall be totally dry while welding. No dirt or debris will be permitted in the

pipeline. Prior to alignment the inside of each joint shall be adequately scrapped by

approved means to the satisfaction of the Engineer-in-charge.

Mode of Measurement & Payment:

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The payment shall be made on Rmt basis as per relevant item (class) mentioned in item of

schedule ‘B’ of the tender. 30% payment shall be released after giving satisfactory hydraulic

testing. (Item is including all taxes, Insurance transportation freight charges, octroi, Inspection

charges, loading unloading, carting to department store, stacking etc.)

Labour charges for repairing of leakage in MS pipeline of following diameter at

different places including necessary excavation manually or by machinery,

dewatering, removing of mud, cleaning of pipe and leakage, portion, grinding, cutting

the pipeline or joint if necessary inci. welding the joint by using ISI marked welding

rods duly approved by EIC of appropriate number and size inclusive of excavator,

Hydra/ Crane, D.G. set, welding machine, Gas cutter with LPG Cylinder, Oxygen

cylinder, grinding machine etc. with fuel, operator & labour as required. (incl. all

material but excluding cost of pipe)

Dia. from 168.3 to 323.9mm

Location of work:

After receiving massage of leakage in MS line agency should be take immediate visit with

department person add locate the site.

Excavation and dewatering:

At location of leakage if water quality is more, over pipe section then necessary dewatering

shall be carried by agency and after that excavation shall be started by manually or by

JCB machine. The excavation carried out in such a manner that clear space of Minimum

60cm is available around DI pipe to leakage repairing if required necessary dewatering

shall be done during excavated without any extra cost. The excavated stuff shall be

stacked nearby trench.

Trench Protection:

After Excavation if leakage repairing work is not complete and pipe trench is opened then

it is responsibility of agency to projected the pipe trench by fencing, guarding, lighting etc.

to avoid any accident.

REPLACING DEFECTIVE PIECE OF DI PIPE:

As per instruction of engineer in charge if required, the defective DI pipe of specified

diameter should be cut by gas cutting in linear way. The same length of DI pipe shall be

replaced on site by agency. The DI pipe (required length) will be provided by department

from stores and necessary carting shall be done by agency without any extra cost to site of

The ends to be welded shall be properly cleaned. Oil paint, oil, grease, rust & oxide As

well as earth. Sand or any other material sticking which could be harmful to the welding

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should be removed. Ends shall be totally dry while welding. No dirt or debris will be

permitted in the pipeline. Prior to alignment the inside of each joint shall be adequately

scrapped by approved means to the satisfaction of the Engineer –in-Charge.

Mode of Payment

The payment shall be as per Number basis of leakage repairing basis as per relevant item

mentioned in item of schedule ‘B’ of the tender..

M. S. Specials plain & socket ends

above 300 mm dia

M S Specials of required thickness with 3 coats of approved make epoxy paint with inside

The necessary MS Specials required during the lowering & laying of MS/A.C & PVC Pipe

shall be supplied by the agency and shall be as per standard specification.

MS specials included Air valves risers, Flanges, Tailpiece etc.

It shall be of best quality as per requirement Rate shall be including loading, unloading,

carting, insurance etc. complete. Agency should be attached weight receipts in final bill or

release of this item.

Mode of Payment

Payment shall be made on Kg Basis after satisfactory testing of pipe line is given by

Providing and supplying ISI mark C.I.D/F Sluice valves, Butterfly valves & Reflux

valves of following class & diameter incl. all taxes, insurance, transportation, freight

charges, octroi, inspection charges, loading, unloading, conveyance to departmental

stores, stacking etc. complete incl. Sluice valves as per IS 780 & 2906 / 1984. PN-1

with hand wheel/ cap operated. a) 300 mm dia.

Design Features

Sluice valve shall conform to IS 14846 (ISI Marked). Except pump house, these valves are to be

installed in valve chamber. All valves of pump house and rising mains shall be non-rising stem

The valves shall be free from sharp projections, which are likely to catch and hold stringy

materials. Valves shall close with clockwise rotation of the hand wheel. The direction of closing

and opening shall be marked on the hand wheel.

Necessary joining materials viz. bolts, nuts, washers, packing etc. shall be provided by the

contractor at his cost. The valves shall be fixed so as to have axis perfectly horizontal. If required

the contractor shall also carry out drilling of holes of appropriate diameter in flanges in required

numbers. A hand wheel shall be provided for emergency operation. The hand wheel drive shall be

mechanically independent.

The valve design shall take care of the pressure drop across the valve disc in case of partial

opening of the valve and shall take care of the erosion and cavitation effect on the body and disc

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during such operation. Valve(s) subjected to back pressure shall have the valve seat, disc and

the operator suitably designed to ensure trouble-free operation. The shaft diameter shall take

into consideration, the maximum torque required for the valve operation, the maximum

differential pressure across the valve disc when the valve is closed and the shock load due to

accidental closure of the valve disc. The disc shall be designed for maximum differential pressure

across the valve as well as the shock load due to accidental closure of the valve. Disc design shall

offer minimum head loss. Disc shall also offer minimum resistance to flow Disc shape shall be

Valve seats shall be of a design that permits removal and replacement at site and shall be

securely clamped on the body or disc of the valve. Seat material shall be suitable for the

operating conditions and handling fluid and may be suitably reinforced, if required. The seat

design shall permit easy removal for replacement purposes without the need for removing the

valve from the line. No deposited or welded seat rings permitted. The valve bearings shall be of

'self-lubricated' type and shall not have any harmful effect due to handling fluid. Adjustable thrust

bearing(s) shall be provided to hold the valve disc securely in the center of the valve seat. Each

Sluice Valve shall be provided with a hand wheel for manual operation. For the Valves located at

inaccessible position, it shall be provided with extension spindle and floor stand or hand lever /

round chain to facilitate manual operation.

Hydrostatic Test

Each valve body shall be subjected to hydrostatic test (Body and Seat) as per IS 14846. For valves

subjected to back pressure condition, leakage test shall be carried out on both sides of the disc.

Performance Test

Each valve complete with operator shall be shop operated at least three (3) times from fully

closed to fully open conditions and reverse, hold at intermediate positions under no flow

condition, to prove the workability of the assembly.

Positive material Identification (PMI Test)

PMI test shall be checked at random for Stainless steel parts.

Test Certificates

When specified by Owner, the manufacturer shall issue a test certificate confirming that the

valves have been tested in accordance with this standard and stating the actual pressures and

medium used in the test.

Marking shall be cast integral on the body or on a plate securely attached to the body for ‘DN’

size, ‘PN’ rating, Heat Number and Serial number.

Each valve shall be drained, cleaned, prepared and suitable protected with 2 coats of red oxide

and then black bituminous paint for minimum of 150-micron DFT on surfaces before dispatch.

Electric Actuator

Each actuator shall be adequately sized to suit the application and be continuously rated to suit

the modulating control required. The gearbox shall be oil or grease filled, and capable of

installation in any position. All operating spindles, gears and head stocks shall be provided with

adequate points for lubrication. The valve actuator shall be capable of producing not less than 1½

times the required valve torque and shall be suitable for at least 15 minutes continuous

The actuator starters shall be integrally housed with the actuator in robustly constructed and

totally enclosed weatherproof housing. The motor starter shall be capable of starting the motor

under the most severe conditions. The starter housing shall be fitted with contacts and terminals

for power supply, remote control and remote positional indication, and shall also be fitted with

internal heaters so as to provide protection against damage due to condensation.

Each starter shall be equipped as follows: i. A.C. electric motor. ii. Reduction gear unit. iii.

Torque switch mechanism complete with set of torque switches. iv. Limit switch mechanism

complete with set of limit switches. v. Hand wheel for manual operation. vi. Hand-auto

changeover lever with suitable locking arrangement. vii. Local control switch / push buttons viii.

415 V / 240 V AC control transformer.

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The actuator shall be suitable for operation in the climate conditions and power supply conditions

given in the specification. The actuator shall be capable of producing not less than 1½ time the

maximum required torque and shall be suitable for at least 15 minutes continuous operation. All

local controls shall be protected by a lockable cover.

SLUICE VALVE/GATE VALVE

No Component PN- 1.0/1.6 PN-2.0 PN-2.5 PN-4.0

CI IS 210 Gr. ASTM A216 Gr. WCB/

1 Body ASTM A216 Gr. WCB ASTM A216 Gr. WCB

FG260 ASTM A351 Gr. CF8

CI IS 210 Gr. ASTM A216 Gr. WCB/

2 Bonnet ASTM A216 Gr. WCB ASTM A216 Gr. WCB

FG260 ASTM A351 Gr. CF8

3 Wedge ASTM A217 Gr. CA15 ASTM A217 Gr. CA15 ASTM A217 Gr. CA15

CI IS 210 Gr. ASTM A216 Gr. WCB/

4 Gland ASTM A216 Gr. WCB ASTM A216 Gr. WCB

FG260 ASTM A351 Gr. CF8

5 Stem SS 410 SS 410 SS304 SS

6 Ring/Wedge IS 318 Gr LTB-2 ASTM A217 Gr. CA15 ASTM A217 Gr. CA15 ASTM A217 Gr. CA15

Gland Graphoil Filler with SS Graphoil Filler with SS

7 Jute and Hemp Graphoil Filler

Packing 304 wire winding 304 wire winding

ASTM A320 Gr L7 and ASTM A320 Gr L7 and ASTM A320 Gr L7 and

8 Nut Bolts Carbon steel

ASTM A194 Gr 4 ASTM A194 Gr 4 ASTM A194 Gr

9 and Stem IS 318 Gr LTB-2 SS 304 SS 304 SS

10 Hand Wheel Cast Iron Cast Steel Cast Steel Cast Steel/SS

ASME/ANSI B16.5 Class ASME/ANSI B16.5 Class ASME/ANSI B16.5 Class

11 Flange End IS

MODE OF MEASUREMENT AND PAYMENT

Measurement shall be paid on number basis as per relevant dia of the item in Payment schedule of

Lowering, laying and jointing in position following C.I. D/F Reflux valves, Butterfly

valves, Sluice valves and Air valves including cost of all labour, jointing materials,

incl. nut-bolt & giving satisfactory hydraulic testing etc. complete.

Lowering, Laying and Jointing

(i) Cast iron double flanged sluice valve/butterfly valves with two tail pieces suitable to pipe

shall be supplied by the board and they shall be carted by the contractor at his own cost from the

departmental store or any other store as directed. The rate shall include loading, unloading and

stacking at site.

(ii) The sluice valve/butterfly valves and tail pieces shall be examined before laying for cracks

and other flows. They shall be undamaged in all respect.

(iii) The sluice valves/butterfly valves shall be operated before laying.

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(iv) All grits and foreign materials shall be removed from the inside of the valves before placing.

(v) All the four faces shall be thoroughly cleaned and coated with a thin layer of mineral

(vi) The tightening of gland shall be checked with a pair of inside-calipers. Clearance between

the top of stuffing box and the underside of the gland shall be uniform all the sides.

2.0 JOINTING MATERIAL

2.1 The contractor shall provide all necessary jointing materials such as nuts bolts, rubber

packing white zinc jute lead wool etc.

1.2 All tools and plant required for installation of sluice valve shall be provided by the

2.3 All jointing materials shall be not approved from the engineer-in-charge before us

2.4 The nut and bolts shall conform to Item No MSP-19 of specification of materials.

2.5 The rubber packing shall confirm all specifications as narrated in Item No MSP-20 of

specifications of materials.

3.0 INSTALLATION

3.1 The sluice valve/butterfly valve shall be lowered in to the trench carefully, so that no part

is damaged during lowering operation.

3.2, If necessary, tail pieces shall be fitted with sluice valve first outside the trench and then

lowered in to the trench.

3.3 The rubber packing shall be three ply and of approved thickness. The packing shall be of full

diameter of the flange with necessary holes and the sluice/butterfly valve bore. It shall be even at

both the inner and outer edges.

3.4 The flange faces thoroughly greased.

3.5 If flange faces are not free, the contractor shall use thin fibers of lead wool.

3.6 After placing the packing, nuts and bolts shall be inserted and tightened to make the joint.

3.7 The valve shall be tightly closed when being installed to prevent any foreign materials from

getting in between the working parts of the valve.

3.8 Each flange bolt shall be tightened a little at a time taking care to tighten diametrically

opposite bolts alternatively.

3.9 The sluice valve/butterfly valve shall be installed in such a way that its spindle shall remain in

truly vertical position.

3.10 The other end of tail piece shall be fitted with pipes so that continuous lines can work.

3.11 Extra excavation required for facility of lowering and fixing sluice valve shall not be paid

4.1 After installation of sluice valve/butterfly valve the same is tested to 11/2 times of its test

4.2 The joints sluice valve/butterfly valve shall withstand the test pressure of pipelines.

4.3 Defects noticed during test and operation of sluice valve shall be rectified by the

contractor at his own cost without any extra claim to the entire satisfaction of the Engineer-in-

MODE OF MEASURMENT AND PAYMENT

5.1 The measurement shall be taken per number of sluice valve/butter fly valve of specified

5.2 The rate shall be per number fitted in a pipe line.

5.3 For non-testing of valve 30% of the rate quoted shall be withheld till testing is given.

Measurement shall be paid on number basis as per relevant dia of the item in Payment schedule

Valve Chambers and Manholes

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Construction of valves chambers in brick or bela stone masonry, locally available in C.

M. 1:6. Foundation concrete 150 mm thick in CC1.4.8 of trap metal size 25 mm to

mm thick, inside cement plaster in C. M. 1:3 and cement pointing outside in C. M. 1:3

and top cover of| precast RCC slab 100 mm thick twith key hole in two parts, each with

handles or MS Bar etc. complete as given size) Upto 1 Mt. depth from GL. to pipe

invert level inc! complete civil works but excl. cost of excavation and refilling, with

cast in situ RCC slab in one single piece with fixing of CI-MH Frame and cover (excl.

cost of CI-MH Frame and cover ) with 23mm thick brick masonary wall in CM 1:6

Size of 1.30 m x 1.30 m and 1.0 m deep with precast slab in two parts 15mm

For 1 Mtr_ Extra Depth

Materials such as Cement, sand, coarse aggregate, bricks, reinforcement, water etc. to be used

for this work shall be confirming to specification laid down in material section.

Chamber shall be constructed at places approved by the Employer’s Representative.

Where valves are provided for maintenance of the pipeline.

Excavation / P.C.C.

Excavation, shoring, dewatering/ P.C.C. etc. for the pits of chambers, laying of pipes and

fittings/specials shall be done in accordance with Employer’s Requirements described elsewhere

in the document.

The bed concrete 150 mm thick for chamber shall be done in C.C. 1:4:8 as directed by the

Engineer-in-charge using trap metal of 25 mm to 40 mm.

Bricks used for construction of manholes shall conform to the relevant Indian Standards. They

shall be sound, hard, and homogeneous in texture, well burnt in kiln without being vitrified, table

molded, deep red, cherry or copper coloured, of regular shape and size and shall have sharp and

square and parallel faces. The bricks shall be free from pores, chips, flaws or humps of any kind.

Bricks containing ungrounded particles, which absorb water more than 1/6th of their weight when

soaked in water for twenty-four hours, shall be rejected. Over burnt or under burnt bricks shall be

liable to rejection. The bricks shall give a clear ringing sound when struck and shall have a

minimum crushing strength of 50 kg/sq.cm. The class and quality requirements of bricks shall be

as laid down in IS:

The size of the brick shall be 23.0 x 11.5 x 7.5 cm. unless otherwise specified; but tolerance up

to 3 mm in each direction shall be permitted. Only full-size brick shall be used for masonry work.

Brick bats shall be used only with the permission of Employer’s Representative to make up

required wall length or for bonding. Sample

bricks shall be submitted to the Employer’s Representative for approval and bricks supplied shall

conform to approved samples. If required by the Employer’s Representative, brick sample shall be

tested as per IS: 3495 by Contractor. Bricks rejected by the Employer’s Representative shall be

removed from the Site within 24 hours.

Mortar for masonry shall be as per IS: 2250. Chambers shall be constructed in brick masonry with

cement mortar (1:6) unless otherwise specified. Gauge boxes for sand shall be of such dimensions

that one bag containing 50 kg. of cement forms one unit. The sand shall be free from clay, shale,

Volume-III: Price Bid Daisar Sump

loam, alkali and organic matter and shall be of sound, hard, clean and durable particles. Sand

shall be as approved by the Employer’s Representative. If required by the Employer’s

Representative sand shall be thoroughly washed till it is free of any contamination.

For preparing cement mortar, the ingredients shall first be mixed thoroughly in dry conditions.

Water shall then be added and mixing continued to give a uniform mix of required consistency.

Cement mortar shall be used within 25 minutes of mixing. Mortar left unused in the specified

period shall be rejected.

The Contractor shall arrange for tests on mortar samples if so, required by Employer’s

Representative. Re-tempering of mortar shall not be permitted.

All bricks shall be thoroughly soaked in clean water for at least one hour immediately before

being laid. The cement mortar for brick masonry work of Chambers shall be in the proportion

specified in drawing. Brick work 230 mm thick and over shall be laid in English Bond unless

otherwise specified. 115 mm thick brick work shall be laid with stretchers. For laying bricks, a

layer of mortar shall be spread over the full width of suitable length of the lower course. Each

brick shall be pressed into the mortar and shoved into final position so as to embed the brick fully

in mortar. Bricks shall be laid with frogs uppermost.

All brickwork shall be in plumb and square/ circular unless otherwise shown on drawing and true

to dimensions shown. Vertical joints in alternate courses shall come directly one over the other

and be in line. Horizontal courses shall be leveled. The thickness of brick courses shall be kept

uniform. For walls of thickness greater than 230 mm both faces shall be kept in vertical planes

unless otherwise specified. All interconnected brickwork shall be carried out at nearly one level

so that there is uniform distribution of pressure on the supporting structure and no portion of the

work shall be left more than one course lower than the adjacent work. Where this is not possible,

the work shall be raked back according to bond (and not saw toothed) at an angle not exceeding

45 degrees. But in no case the level difference between adjoining walls shall exceed 1.25 M.

Workmanship shall conform to IS:

Brick shall be so laid that all joints are well filled with mortar. The thickness of joints shall not be

less than 6 mm and not more than 10 mm. The face joints shall be raked to a minimum depth of

12 mm by raking tools daily during the progress of work when the mortar is still green, so as to

provide a proper key for the plastering to be done. When plastering is not required to be done,

the joints shall be uniform in thickness and be struck flush and finished at the time of lying. The

face of brickwork shall be cleaned daily and all mortar droppings removed. The surface of each

course shall be thoroughly cleaned of all dirt before another course is laid on top. If mortar in the

lower courses has begun to set, the joints shall be raked out to a depth of 12 mm before another

course is laid.

All joints in masonry shall be raked to a depth of 12 mm with hooked tool made for the purpose

when the mortar is still green and in any case within 48 hours of its laying. The surface to be

rendered shall be washed with fresh clean water free from all dirt, loose material, grease etc.

and thoroughly wetted for 6 hours before plastering work is commenced. Concrete surfaces to be

rendered will however be kept dry. The wall should not be too wet but only damp at the time of

plastering. The damping shall be uniform to get uniform bond between the plaster and the wall.

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The proportion of the cement mortar shall be as approved on relevant drawings. Cement shall be

mixed thoroughly in dry condition and then just enough water added to obtain a workable

consistency. The quality of water, sand and cement shall be as per relevant I.S. The mortar thus

mixed shall be used immediately and in no case shall the mortar be allowed to remain for more

than 25 minutes after mixing with water.

Curing of plaster shall be started as soon as the applied plaster has hardened enough so as not to

be damaged. Curing shall be done by continuously applying water in a fine spray and shall be

carried out for at least 7 days.

Plastering shall be done on inner face of brick masonry in cement mortar (1:3) and 15 mm thick

unless otherwise specified.

Cement pointing in C: M (1:3) shall be done on outside the chamber including racking out joints,

curing etc. complete as directed by the engineer-in-charge.

Cement Concrete Block

The C.C. blocks for the chamber shall be constructed in cement concrete of M15 grade to take

care of weight of valves.

Pipe Entering or Leaving Chamber

Whenever a pipe enters or leaves a chamber, bricks on edge must be cut to a proper form and laid

around the upper end of the pipe so as to form an arch. All around the pipes, there shall be a

joint of cement mortar (1:2) 13 mm thick between it and the bricks.

Precast Reinforced Cement Concrete Slab with key holes

Precast Reinforced cement concrete top slab shall be casted in pieces for covering the chamber.

Necessary keyholes shall be provided at appropriate place for operation of spindle of valve. The

minimum thickness of slab shall be 100mm and same shall be casted in C.C. of M20 grade. The

required reinforcement shall be provided. The top & bottom surface of precast slab shall be

finished with cement mortar 1:3.

Measurement and Payment

Measurement shall be paid on number basis as per payment schedule.

Extra depth of valve chamber. beyond 1.00 mt. depth.

The work shall be measured and paid for additional meter depth of chamber beyond 1.0 m depth.

The work in general shall be carried out as per instructions & approval of engineer in charge.

Designing (aesthetically) & Constructing Pump Room with Positive & Negative Suction

with Gantry (Min Height 4.5 mt.) Note:- 1. Minimum 15 % opening for ventilation should

be provided. 2. Pump room rolling shutter, door and windows of aluminium section

and window grill of iron should be provided (Included in Cost). 3. Plinth level of Pump

house should be min.1 meter above GL. 4.Cost does not include foundation for

pumping machinery. Upto 6.00 M (Plinth Level to Top slab Beam Bottom) Pump Room

at Daisar Hw = 6*4mtr

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Ancillary works such as site grading, site drainage; fencing and gates for outdoor substation etc.

as described under specifications for Civil & Building Works shall be undertaken.

Design Requirements:

The following are the design requirements for all reinforced or plain concrete structures:

a) All binding and leveling concrete shall be a minimum 100 mm thick in concrete grade M15 or

in concrete mix 1:2:4 to be used.

b) All structural reinforced concrete for water retaining structures shall be of a minimum M30

grade with a maximum 40 mm aggregate size for footings and base slabs of thickness more than

450mm and with a maximum 20 mm aggregate size for all other structural members. For non

water retaining structures the concrete shall be of M 25 grade with a maximum 20 mm aggregate

size. The water retaining structures shall have to be designed as per IS: 3370 (Part I-IV).

c) The reinforced concrete for water retaining structures shall have minimum cement content

d) The reinforcement to be used shall be TMT reinforcement of grade Fe-415 of reputed make,

conforming to IS:

e) The minimum reinforcement for water retaining structures in each direction should be as per

IS 3370. The minimum clear cover to all reinforcement including stirrups and links shall be

mm for all water retaining structures.

f) The minimum size main reinforcement bar shall be

g) 12mm in case of columns and beams,

h) 10mm in case of walls,

i) 8mm in case of slabs.

j) The minimum size of secondary reinforcement shall be 8mm

k) All buildings shall have a minimum 1 meter wide, 100 mm thick plinth protection paving in

M15 grade concrete or stone slabs/tiles. All plinth protection shall be supported on well

compacted strata.

l) Any structure or pipeline crossing below roads shall be designed for Class A of IRC loading.

m) The bridges & bridge supporting structures shall be designed to safely withstand the loading.

n) All pipes & conduits laid below the structural plinth & road works shall be embedded in

reinforced concrete of grade M15 of minimum thickness 150 mm.

o) Approved quality water proofing compound (chloride free) shall be added during concreting

of all liquid containing structure in the proportions specified by manufacturer or 2 % by weight

of cement whichever is higher.

p) The wall and floor panels shall be poured in sequential order with a minimum time gap of

q) Flooring should be vitrified tiles first quality.

The following minimum thickness shall be used for different reinforced concrete members,

irrespective of design thickness:

(i) Walls for liquid retaining structures : 250 mm

(ii) Roof slabs for liquid retaining structure : 150 mm

(other than flat slabs)

(iii) Bottom slabs for liquid retaining structure : 200 mm

(iv) Floor slabs including roof slabs, walkways,

canopy slabs : 100 mm

(v) Walls of cables / pipe trenches,

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underground pits etc. : 125 mm

(vi) Column footings : 300 mm

(vii) Parapets, chajja : 100 mm

(viii) Precast trench cover : 75 mm

Construction Requirement

Pump house structures shall be constructed in M30 and M25 grade concrete respectively and

reinforcement steel shall be of TMT Fe 415 grade.

The general specification of cement, sand, brick, metal, water, mixing, placing and curing,

plastering and color work etc shall be as per general specifications laid down in this contract.

Pump house should be painted with weather proof paint after construction.

The detailed specification of the work shall be as per item wise specifications of building/civil

works attached to this volume.

The data sheet details shall be used for designing the pump house.

The design/drawings of pump house shall be got approved by the engineer in charge & design

cell of GWSSB before execution of work.

The construction of pump room shall be carried out as per direction/instruction of engineer in

The construction of inspection area of pump room should be done Panel Board Slab.

i.e. inside bottom portion and inside top portion measurement remain same.

Contractor must provide 2 inch X 2 inch Alluminum mesh outside of glass in window

for prevention of bird inside the pump house. No extra payment done for the same.

On the terrace of pump room broken china mosaic tiles must be laid by the

Mode of measurement and payments

The measurement shall be taken per Pump Room Design & constructed on site as per dept.

requirement/data sheet. The measurement shall be per square meter basis. Measurement taken

as per bottom level at which the Pump & Motor is installed.

Techanical Specification of Mechanical Equipments Section Item No.13 to 29 and Electrical

section Item No. 30 to 49 are Separete Volume attached.

SIGNATURE OF CONTRACTOR EXECUTIVE ENGINEER