Maintenance of sewerage systems in IGCAR, kalpakkam during the year 2026 - 2027

Clearing light jungle area of all kinds of shrubs, bulb weeds, grass, small plants, branches including cutting all unwanted plants, branches, twigs, wild growth, thorny leaves etc. complete, and disposing the same as place specified by Engineer, transporting at contractors own cost complete all as directed by the Engineer-in-Charge. Note: The unwanted cut bulb weeds, wild grass, unwanted vegetation are to be periodically collected and transported to dumping yard. During execution period any damages shall be rectified to the original at contractor cost. The measurement for payment shall be taken prior to cut the jungle and as directed by the Engineer-in-Charge. The rate shall include the cost of labour, transportation, loading, and unloading at dumpyard or place as directed by Engineer-in-Charge.

All kinds of soil with depth upto 1.5m below average Ground level and disposing surplus excavated earth upto a lead of 50 metres.

Conveying the surplus excavated earth & debris, boulders and spoil by mechanical means and depositing at places inside DAE installation identified as Dumping yard as per requirement with a lead specified below including loading, unloading, breaking clods, levelling all complete as per specification and as directed by the Engineer-in-Charge. Note: 1) The rates in respect of this Item are applicable for the NET Quantities arrived at after making deductions for voids @ 20% in respect of soil and @ 50% in respect of Rock from the corresponding Stack / Truck measurements. 2) The earth shall be dumped well inside the Dumping yard and not over approach pathway road.

Lead charges for lead Exceeding 2 kilometre but not exceeding 3 kilometre

Levelling, bull-dozing the heeped / dumped loosened earth / debris etc., by hiring JCB / Bull-dozer etc., including transporting, operating the vehicle, operating the vehicle by engaging driver/operator with valid driving license, diesel charges, insurance and admissible taxes, labour if any required etc. complete all as directed by Engineer-in-Charge.

Providing and laying plain cement concrete 1:4.5:8 using 25mm maximum size graded aggregates and crushed stone sand including mechanical mixing, transporting and placing in required position, ramming, compaction, levelling, curing, shuttering, dewatering if any, complete all as per specification for levelling courses in foundation for walls, footings, floor drains etc., encasing pipes and other required works directed by Engineer-in-Charge complete all as per specifications.

Providing and placing in situ controlled cement concrete of grade & total minimum cementitious content as specified (cement + fly ash) for kg/Cu. M, using OPC conforming to IS 269-2015 or latest edition and with required fly ash conforming to IS 3812 Part -I / ASTM C-618 Class F. Fly ash should be blended at site such that fly ash content should not exceed 20 % by weight of total cementitious content using 20mm nominal size graded hard stone aggregate obtained from approved quarry mechanical mixing/Ready mix supply plant mixing, transporting/transporting by Transit Mixers, pumping using Concrete pumps/ placing with crane buckets etc., at all levels, lifts & all structural elements including dewatering wherever necessary, including compacting, finishing top surface to level, curing (For a period of at least 10 days), etc. complete as directed by the Engineer at levels for the items mentioned below. Coarse aggregate used should be hard granite machine crushed (with VSI technology only) graded stone aggregates with maximum size of aggregate not exceeding 20 mm size. Fine aggregate used shall be either natural river sand or crushed stone sand (with VSI technology only and shall be washed in water to remove finer particles, the micro fines particles of size less than 75 micron should be less than 7%) (Zone I / II) conforming to IS 383 – 2016 or latest edition. Note:- 1. The rate of concrete shall include all labour, equipment, charges for mixing & cost of admixture. Chemical admixture conforming to IS 9103 shall be mixed in fresh concrete and prior permission from Engineer-in-charge shall be obtained for dosage and compatibility. 2. Test certificate of cement, procured from dealer/company to be submitted for all cement related works by the Contractor. 3. The rate shall be quoted on the basis of using minimum cement per cu.m. of concrete mentioned below for relevant grade of concrete. Any upward/downward variation required to obtain the specified strength will be paid for or deducted at the rate of cement specified in Schedule F.

M30 grade with total minimum cementitious content (cement + fly ash content not exceed 20 % by weight of total cementitious content) 380kg/cum of concrete upto plinth level

Manufacturing, supplying, hoisting and fixing in position at all lifts, precast units of various patterns and sizes for precast plain solid units, slabs, exhaust fan moulds etc., in reinforced cement concrete of 1:2:4, using 20mm and below machine crushed graded stone aggregate and crushed stone sand including weigh batching, mechanical mixing, casting, vibrating, finishing of exposed faces, curing, necessary formwork & moulds, transporting and placing at all lifts, preparation of connections, grouting with cement mortar/cement grout wherever needed excluding steel reinforcement complete all as per drawing, specification and as directed by Engineer-in-Charge.

Providing, straightening, decoiling wherever necessary bending, cutting, binding and fixing in position steel reinforcement at all levels TMT bars of Fe500D grade steel conforming to IS:1786 SAIL or VIZAG or approved equivalent make and tying with approved annealed binding wire of 1.6mm dia in all reinforced cement concrete work at all lifts, including cost of supplying and fixing the spacer/cover blocks in cement mortar 1:2 and binding wire complete all as per specification and as directed by the Engineer-in-charge at all lifts. Note: The rate shall be including the cost of reinforcement steel. The reinforcement steel will be procured from dealers with a test certificate as approved by the department. For further details please see point 7 of Section VIII, General Information for Guidance of Tenderers.

Supplying, fabricating, erecting and fixing in position at all levels, centering and shuttering to correct line and levels including strutting, propping, etc., with necessary bracings in all axes to give a stable assembly with provision for making the joints in the shuttering fully leak proof and with provision for fixing coil nuts with tie rods along with suitable channel for lateral supports and for inserts, projecting dowels, anchor bolts or any other fixture, including staging, access and working platforms etc., all complete as specified and directed including dismantling and removing the aforesaid assembly after the concrete attains the sufficient strength to self-support itself without cracking and distortion all as per specification, including all materials and labour complete in all respects at all lifts. The measurement for the formwork will be the actual area of forms in contact with concrete surfaces. Shuttering with plywood panels alone will be permitted.

Providing, supplying, cutting, bending to shape, welding, fabricating, hoisting, placing and fixing in position structural steel members like MS structural embedment’s/pipe and sleeves/penetration etc. using MS angles, channels, I-sections, plates, tees, flats, rounds, sag rod, square sections etc. including chamfering and rounding off the edges, applying painting as described below of approved colour and make, scaffolding and staging required for fabrication as well as erection complete all as per specifications, drawings and as directed by the Engineer-in-charge. Note: 1. Lifting device arrangements if any required also arranged by the contractor at his own cost. 2. Painting two coats of polyurethane paint with one under coat of suitable Epoxy/PU primer of approved make and colour as directed by the Engineer-in-Charge.

Supplying and fixing in position of heavy quality Cast Iron manhole frame and cover, steps etc of specified weight for the inspection chamber, valve chamber etc. all as per specifications and as directed by the Engineer-in-Charge.

Providing and fixing bolts including nuts and washers of approved size, quality and make as per requirements as per specifications and drawings complete all as directed at site by the Engineer-in-Charge.

Providing and constructing brick masonry at all lifts using well burnt stock bricks / Flyash bricks in cement mortar 1:5 using crushed stone sand including suitable scaffolding, raking out joints, curing complete as per specifications and drawings for foundation, superstructure, etc. for the following

Upto FFL

Providing plastering to the external surfaces of brickwork/concrete at all elevations/levels in cement mortar 1:5 using crushed stone sand, 15mm thick including hacking of concrete surfaces with pointed tool, scaffolding, finishing, curing, forming grooves wherever necessary, all as per specifications and as directed by the Engineer-in-Charge.

Construction of Inspection / valve chamber of following size internally upto 1.00metre depth with brick masonry walls of 230/345mm thick using stock bricks in cement mortar 1:5 using crushed stone sand with necessary brick carbelling as required, plastering with cement mortar 1:3 using crushed stone sand, 12mm thick finished smooth with a floating coat of neat cement inside chamber and with cement mortar 1:5 using crushed stone sand, 12mm thick for external sides of the chamber including excavation in all types of soils, back filling, providing and laying 150mm thick PCC 1:4.5:8 using 40mm size granite aggregates and crushed stone sand for foundation concrete forming benching in PCC 1:2:4 using 20mm maximum size graded aggregate and using crushed stone sand etc. complete all as per specification, drawing and as directed by the Engineer-in-Charge.

Inspection / valve chamber of internal size 600x600mm

Extra depth over initial depth of 1 metre or part of a metre depth with necessary modification to the thickness of chamber wall to suit site requirement as per drawing and as directed by the Engineer-in-Charge of Inspection / valve chamber of size 600x600mm

Providing and constructing Random Rubble masonry in cement mortar 1:6 using hard granite stones obtained from approved quarry with bond stones at 2.00 metres apart for foundation, basement and in superstructure, compound/boundary walls, including sizing of stones if required, raking out joints, scaffolding, curing etc., complete all as per drawing, specifications and as directed by Engineer-in-Charge at all lifts.

Providing Flush pointing over the random rubble masonry wall with cement mortar 1:3 at all levels including scaffolding, curing, forming grooves wherever necessary all as per specifications, drawings and as directed by Engineer-in-Charge.

Dismantling Plain Cement concrete by manually / by mechanical means at all levels, carefully without damaging adjacent structures including disposal of debris with 50m lead, labour, tools required etc. complete in all respects as per specifications and directed by the Engineer-in-charge.

Dismantling of RCC works at all levels by manually / by mechanical means, including Cutting and stacking of steel reinforcement bars and disposal of unserviceable materials within 50m lead as per specifications and directed by the Engineer-in-charge.

Dismantling brick work in cement mortar at all levels by manually / by mechanical means, carefully without damaging adjacent structures including stacking of serviceable materials and disposal of unserviceable materials within 50m lead all as per specifications and directed by the Engineer-in-charge.

Demolishing Stone rubble masonry in cement mortar at all levels by manually / by mechanical means, carefully without damaging adjacent structures including stacking of serviceable materials and disposal of unserviceable materials within 50m lead as per direction of Engineer-in-charge.

Providing and fixing under ground selfit SN 8 sewer pipes of following diameter conforming to IS:15328 including suitable Fittings & specials confirming to IS:15328, ‘Finolex’ or other approved equivalent make of stiffness class 8 KN/SQ.M and minimum wall thickness of 5.9 mm including jointing with seal ring / with PVC solvent adhesive including fixing in walls/columns using clamps, anchor fasteners, bolts and teakwood packing pieces, joint testing etc. complete all as per drawings, specifications and as directed by the Engineer-in-Charge.

110mm nominal size

160mm nominal size

Operating the VNC pumps, Sewage submersible pumps, Monoblock pumps, Sludge pumps, De watering pumps, Rotors and valves etc., in the Sewage Treatment plant and Lift station including cleaning and removing the floating objects from screen cum suction well, inlet chamber, influent chamber, oxidation ditch, settling tank, chlorination chamber and oxidation pond etc., including cleaning of the bar screens , removing of dried sludge from sludge drying beds, operation of slurry pumps and valves for recycling sludge, and balling out sewage water from the letting out effluent etc..,complete in the sewage treatment plant / sewage lift station of IGCAR and as directed by the Engineer-in-Charge. Note: Contractor has to engage a minimum 2nos. of operators in each shift every day throughout the year including holidays (Timing of shifts - General shift 9:00 hours to 17:30 hours ; 1st shift 6:00 hours to 14:00 hours ; 2nd shift 14:00 hours to 22:00 hours; 3rd shift 22:00 hours to 6:00 hours). If any short fall found during the contract period, he will be penalised at the rate of 1.00 job / operator / day shall be deducted from the RA bills.

Maintenance of all types of pumps and rotors and keeping all the machineries in good working condition including rectifying the problems arising in those machineries, with use of lubricating oil and grease for the moving parts of the pumps, rotors and vertical drive shafts at sewage treatment plant and sewage lift station and other connected works involving operation and day to day cleaning of pumps and rotors etc. Note: 1) Contractor has to engage a minimum of 1 no. ISI certified mechanic in general shift every day throughout the year including holidays (Timing of General shift 9:00 hours - 17:30 hours). If any short fall found during the contract period, he will be penalised at the rate of 1 job / mechanic / day shall be deducted from the RA bills. 2) Lubricating oil and grease will be paid under relevant item.

Supply and lubricate with ‘Veedol or approved equivalent’ Reduction gear box oil (lubricating oil) all as directed by the Engineer-in-Charge.

Supply and lubricate with ‘Castrol or approved equivalent’ Grease all as directed by the Engineer-in-Charge.

Removing the choke and cleaning the sewer lines of 100mm to 300mm Dia stone ware / CI pipes including opening the CI manholes cover of the chamber, inserting sewer cleaning rod through one chamber, and removing at the other chamber, collecting and disposing the chocked materials like root, grit, sand etc., including cleaning the chamber, gully and pipes, general cleaning of the shaft area of the building s etc., complete all as directed by Engineer-in-Charge.

De-silting the grit in sewage lift station and treatment plant for following including providing clay dummy in the incoming branches of sewer line inside man hole for arresting incoming sewage, cleaning the central platform and MS gratings, removing the grit along with sewage manually and disposing off in an excavated pit about 200 meters away from the site of work by head load, including excavation of pit, refilling the pit after use, operation of the pump to lower the sewage level, supply of materials such as coconut oil, soap, bucket, rope, scaffolding with pulley arrangement etc., complete all as directed by the Engineer-in-Charge.

Sewage collection cum suction well in lift station (Capacity 1.32 Lakhs litres)

Sewage collection cum suction well in sewage treatment plant. (Capacity 1 Lakh litres)

Oxidation ditch in sewage treatment plant. (Capacity 1.52 Lakhs litres)

Settling tank (Capacity 0.61 Lakhs litres), Eff. Tank, Aerator (Capacity 2.35 Lakhs litres) & Garden well in sewage treatment plant and storage sump in 50 KLD STP.

Oxidation pond in sewage treatment plant. (Capacity 18.96 Lakhs litres)

Chlorination and return sludge chamber in sewage treatment plant.

Sewage collection well in 50 KLD North plant STP (Capacity 1.11 Lakhs litres)

Supplying and disposing the good quality of bleaching powder in the drinking water / let out treated sewage effluents for the purpose of disinfections at Sump / Sewage treatment plant or places as directed, including cost of bleaching powder, transport and required man power for dosing etc., complete all as directed by the Engineer-in-Charge. Prior approval shall be obtained from the Engineer-in-Charge by producing samples regarding quality and brand before procurement.

Lifting & Transporting the Liquefied sludge from Sewer chambers / Septic tanks in various locations inside DAE complex / DAE Townships to IGCAR STP including loading the sludge and unloading by using tanker lorry and disposing through mechanical means and as directed by the Engineer-in-Charge including all tools & Equipments .(The rate shall include the cost of hire charges for tanker/Lorry and crew and required tools and equipment etc.)

Removing the existing Filter media materials in PSF & ACF and transporting the same to dumping yard all as directed by the Engineer-In-Charge.

Supplying and filling the following filter media materials in Pressure Sand Filter and Activated carbon filter at Sewage Treatment plant, including transporting materials, loading, unloading, labour, etc. complete all as per specification and as directed by the Engineer-In-Charge. Note: The material shall be supplied by authorized agency only. Prior approval shall be obtained from the Engineer-in-charge by producing samples regarding quality and brand before procurement.

Pebbles 40-25mm size

Pebbles 25-12mm size

Pebbles 12-6mm size

Pebbles 6-3mm size

River sand (filtration grade)

Anthracite carbon (40% carbon content)

Coarse silex (6 - 4mm)

Fine silex (3 - 1mm)

Activated carbon (IV 600) Coal based type

Maintenance of lawns, flower beds, hedges, trees etc., in garden area (Non- sprinklers area) by watering at regular intervals, cutting and trimming hedges, and the unwanted growth of grasses as and when required including running lawn mover, removing weeds, collecting the cut grass, fallen leaves of trees and disposing the same at dumping yards shown by the department, watering the trees inside the garden area complete all as per specifications and as directed by the Engineer-in-charge. Note: 1. The rate shall include the cost of hire charges of lorry and labour for transporting of cut grass, leaves etc., to the dumping yard. 2. The rate shall also include cost of all tools, plants, water delivery hose required for gardening etc. 3. The rate quoted shall be per Sq.m. area maintained per month. 4. Contractor has to make his own arrangement for Lawn Movers. If departmental lawn movers is available it will be provided by department on chargeable basis. 5. If lawn mover is not used, then recovery at the rate as mentioned in specification will be levied as penalty from RA Bill. 6. The contractor shall engage minimum 1 person for 1500 sq. m /day throughout the month as directed by Engineer-in-charge. Failure to employ the above minimum numbers of labour will attract penal clause as per additional special condition of contract attached with the tender for every default of labour. 7. Cutting plants should be handed over to nursery for sampling by the contractor as directed by the Engineer-in-charge. 8. The contractor shall supply the PPE to the garden labour and they should wear the PPE during their working hours.

Supplying and fixing of FRP manhole frame and cover as below mentioned size and capacity for the inspection chamber, valve chamber, water tank and other required location including transportation, making necessary holes for fixing, fixing at position with levels and alignment, cement mortar 1:3 to packing and finishing, etc. complete all as per specification and instruction of the Engineer-in-Charge. Note: FRP items shall be UV stabilised.

600mm dia size with load carrying capacity of 12.5 tonnes

600 x 600mm size with load carrying capacity of 2.5 tonnes

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Government of India Department of Atomic Energy Indira Gandhi Centre for Atomic Research CIVIL ENGINEERING GROUP

Tender No. :

INDEX

Section

Schedule of Quantities

Section VIII

I. GENERAL INFORMATION FOR GUIDANCE OF TENDERERS

The schedule of quantities is to be read for the purpose of pricing in conjunction with the special conditions, general rules for the guidance of contractors, conditions of contract, specifications, drawings, schedule of supply of materials and the appendices.

The prices inserted in the schedule of quantities shall be inclusive of value of the work described including all cost and expenses, which may be required in and for the construction of the work described together with the general risks, liabilities and obligations not forth or implied in the documents on which the tender is to be based.

The quantities stated are to be considered approximate only and the unit prices entered in the schedule of quantities and prices shall apply only to the actual quantities measured in the completed work in accordance with the specifications.

All the materials other than those shown in schedule of supply of materials in section VII are to be arranged by the contractor and his rates should account for the same.

Rates quoted for all items in this tender shall include cost of all materials including cement and steel. Department will not supply any materials other than materials stipulated in Section VII of the tender and as such the rates quoted must be all inclusive.

The contractor shall be responsible for supply of cement and procure OPC cement conforming to IS 269 (Latest edition) and use it on works. Since the supply of cement by the department has been dispensed all the clauses relevant to supply of cement by department in this tender document stands cancelled. The contractor shall purchase cement from the approved manufacturers only. Secured advances on cement up to 75% of purchase price shall be paid to the contractor after indemnifying the Government and through insurance cover. The quantity of cement on which secured advance shall be paid will be restricted to the consignment of cement tested and passed in the test in department laboratory. The secured advance on cement shall be regulated as per Clause 10B of conditions of contract. Prior approval to be obtained from the Engineer for the quantities proposed to be purchased.

Regarding supply of STEEL the contractor shall procure only TMT barsof Fe – 500D Grade conforming to IS – 1786 (Latest edition) from main producers as approved by the Ministry of Steel like M/s SAIL, M/s ISPHAT Nigam Limited, M/s VIZAG Steel & M/s TISCON with a test certificate, and use it on works after getting approval from department Engineer or tested in department laboratory. In case of non-availability from aforesaid manufacturers, reinforcing steel of other makes manufactured from ingots alone will be permitted with the prior approval of Engineer-in-charge. Sample shall be tested for all the required parameter as specified in the BIS before bulk purchase.

Contractor shall make his own arrangements for construction water supply to carryout this work.

Compensation for escalation in the prices of materials and labour when due is permissible as per provisions in Clause 10CC of conditions of contract.

If contractors need any clarification they are required to contact the Chief Engineer, Civil Engineering Group, Indira Gandhi Centre for Atomic Research, Central Design Office, Kalpakkam 603 102, Kancheepuram District, Tamilnadu. (Telephone STD Code: 044 – 27480306)

II. CONDITIONS FOR CEMENT :

The contractor shall procure OPC cement conforming to IS 269 (Latest edition), as required in the work, from reputed manufacturers of cement, such as M/s. Ultratech Cements, M/s. Zuari Cements, M/s. Coromandel, M/s. Penna, M/s. Priya Cements, M/s. Chettinadu Cement,M/s. Dalmia cementsand holding license to use ISI certification mark for their product whose name shall be got approved from Engineer-in-charge. Supply of cement shall be taken in 50 Kg. bags bearing manufacturer’s name and ISI marking, samples of cement arranged by the contractor shall be taken by the Engineer-in-charge and got tested in accordance with provisions of relevant BIS codes. In case test results indicate that the cement arranged by contractor does not conform to the relevant BIS codes, the same shall stand rejected and shall be removed from the site by the contractor at his own cost within a week’s time of written order from the Engineer-in-charge to do so.

The cement shall be brought at site in bulk supply of approximately 50 tonnes or as decided by the Engineer-in-charge.

The cement Godown of having a capacity to store minimum of 2000 bags of cement shall be constructed by the contractor at site of work for which no extra payment shall be made from department. Double lock provision shall be made to the door of the cement godown. The keys of one lock shall remain with the Engineer in charge or his authorised representative and the key of the other lock shall remain with the contractor. The contractor shall be responsible for the watch and ward the safety of the cement godown. The contractor shall facilitate the inspection of the cement godown by the Engineer-in-charge at any time.

The contractor shall supply free of charge the cement required for testing. The cost of tests shall be borne by the contractor.

The actual issue and consumption of cement on work shall be regulated and proper accounts maintained as provided in Clause 10 of the contract. The theoretical consumption of cement shall be worked out as per procedure prescribed in Clause 42 of the contract and shall be governed by conditions laid therein.

Cement brought to site and cement remaining unused after completion of work shall not be removed from site without written permission of the Engineer-in-charge.

III. CONDITIONS FOR STEEL:

The contractor shall procure steel reinforcement bars conforming to relevant BIS codes from main producers such as M/s SAIL, M/s RINL, M/s. TATA Iron & Steel Co., M/s. IISCO and M/s. JSW Neo Steel with a test certificate, and use it on works after getting approval from department Engineer or tested in department laboratory. In case of non-availability from aforesaid manufacturers, reinforcing steel of other makes manufactured from ingots alone will be permitted with the prior approval of Engineer-in-charge. Sample shall be tested for all the required parameter as specified in the BIS before bulk purchase. The contractor shall have to obtain and furnish test certificates to the Engineer-in-charge in respect of all supplies of steel brought by him to the site of work. Samples shall also be taken and got tested by the Engineer-in-charge as per the provisions in this regard in relevant BIS codes. In case the test results indicate that the steel arranged by the contractor does not conform to BIS codes, the same shall stand rejected and shall be removed from the site of work by the contractor at his cost within a week’s time from written orders from the Engineer-in-charge to do so.

The steel reinforcement shall be brought to the site in bulk supply of 10 tonnes or more or as decided by the Engineer-in-charge.

The steel reinforcement shall be stored by the contractor at site of work in such a way as to prevent distortion and corrosion and nothing extra shall be paid on this account. Bars of different sizes and lengths shall be stored separately to facilitate easy counting and checking.

For checking nominal mass, tensile strength, bend test, re-bend test, etc. specimen of sufficient length shall be cut from each size of the bar at random at frequency not less than that specified below:

Size of bar

Under 10mm dia

10mm to 16mm dia

Over 16 mm dia.

The contractor shall supply free of charge the steel required for testing. The cost of tests shall be borne by the contractor.

In case the Reinforcement steel is issued by the Department, the actual issue and consumption of steel on work shall be regulated and proper accounts maintained as provided in Clause 10 of the contract. The theoretical consumption of steel shall be worked out as per procedure prescribed in Clause 42 of the contract and shall be governed by conditions laid therein. For the purpose of payment, weight will be calculated on the basis of bar bending schedule and weights of bar given as under. Wherever actual lengths placed differ from bar bending schedule actual length will only be measured.

Bar dia (mm)

Steel brought to site and steel remaining unused shall not be removed from site without the written permission of the Engineer-in-charge.

Government of India Department of Atomic Energy Indira Gandhi Centre for Atomic Research Civil Engineering Group

TENDER DOCUMENT FOR

Cleaning of Storm water drains and roads in Southern side of IGCAR Premises during the year 2024-2025 at Kalpakkam.

Tender No. CEG/IGC/1937/2023

Part – II : Financial Bid (Section - VIII)

INDEX

Instructions to contractors

Schedule of Quantities