CGF 2025-2026 Improvement of Water supply system (Infiltration Well, New pumping main, 0.60LL OHT-1 No and 2.50LL OHT-1 No) in peranamallur Town Panchayat

Earth work excavation for foundation by manual means for Isolated, Combined and Other type foundations in all soils and sub-soils and to full depth as may be directed except in rock requiring blasting inclusive of shoring shuttering, bailing out water wherever necessary and depositing the surplus earth within the compound in places shown by the departmental officers with an initial lead of 10 mts and initial lift of 2.00mts. and clearing and levelling the site, etc., complete complying with standard specification and as directed by the departmental officers.

In hard stiff clay, stiff black cotton, hard red earth, shales, murrams, gravel, stoneyearth and earth mixed with small sized boulders

For First depth of 0 to 2 m

SDR - (Not Requiring Blasting) Earth work excavating and depositing on bank with initial lead of 10 m & initial lift of 2m in Soft disintegrated rock, laterite, soft rock or kankar, not requiring blasting

For 2nd depth of 2 m to 3 m

Earthwork excavation and depositing on bank with an initial lead of 10m and initial lift of 2 m in trenches in other than loose soil, hard stiff clay, stiff black cotton, hard red earth, shales, murram gravel, stoney earth and earth mixed with small boulders SS 20B.the rates for earth work excavation and refilling for pipe line works having bed width of 1.25m and below on linear measurement basis.

100mm DIK7

Earthwork excavation and depositing on bank within initial lead of 10m and initial lift of 2m including shoring, strutting and bailing out water wherever necessary and all other incidental works, etc., complete as directed by the departmental Officers in the following classification of soil. Loose Soil for river bed

Connecting Main - 150mm DI/DF

Sinking of infiltration well of 4.50m internal dia and 5.5m external dia below water level including ali incidental charges in light or sandy soil.

1st Depth of 2m

2nd Depth of 2m

3rd Depth of 2m

4th Depth of 2m

5th Depth of 2m

Porous concrete in CC 1:4 (One cement and four hard broken granite jelly of a size 20mm) for steining of infiltration well excluding cost of centering but including curing etc., complete and as directed by the Engineers @ well curb including all labour charges etc, complete.

Infiltration Well

Supplying and filling in foundation and basement with Crushed Stone Sand (M- Sand) in layers of not more than 15cm thick well rammed watered and compacted etc., complete complying with standard specification.

Cement Concrete 1:5:10 (One Cement, Five crushed stone sand and Ten hard broken stone jelly) using 40 mm gauge hard broken granite stone jelly for foundation including dewatering wherever necessary and laid in layers of not more than 15 cm thick well rammed, consolidated and including curing etc. complete complying with standard specification and as directed by the departmental officers -Mixing by mechanical means

Providing and laying in position, Standardised Concrete Mix M-30 Grade by insitu machine mix concrete adopting weighing batch method in accordance with IS:456-2000 using 20mm and down graded hard broken granite stone jelly for all RCC items of works with minimum cement content of 400 kg/m3 and maximum water cement ratio of 0.45, including admixture (plasticiser / superplasticiser) in recommended proportions as per IS:9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability with about (5.0 Cu.m) 7730 kg. of 20mm machine crushed stone jelly and with about (3.3 Cu.m) 5156 kg. of 10-12mm machine crushed stone jelly and with about (4.79 cu.m’) 7670 kg. of crushed stone sand, but excluding cost of reinforcement grill and fabricating charges, centering and shuttering and also including laying, vibrating with mechanical vibrators, finishing, curing, etc. and providing fixtures like fan clamps in the RCC floor/ roof slabs wherever necessary without claiming extra, etc., complete complying with standard specification and as directed by the departmental officers. The coarse and fine aggregates to be used should comply with the requirements of IS Standards. (No separate payment will be made by the Department for the excess usage of materials).

Beyond and 1.5m and upto 4.5m Below GL

Upto 1.5 m below G.L.

Upto 4.50 m ht. Above G.L.

From 4.50 m to 7.32 m ht. From G.L.

From 7.32 m to 10.98 m ht. From G.L.

From 10.98 m to 14.64 m ht. From G.L.

From 14.64 m to 18.35 m ht. From G.L.

From 18.34m to 21.96 m ht. From G.L.

Supplying and erecting centering for sides and soffits including necessary supports and strutting upto 3.29 M height for plane surfaces as detailed below in all floors with all cross bracings using Mild Steel sheets of size 90 x 60 cm and 10 BG stiffened with welded Mild Steel angle of size 25mm x 25mm x 3 mm for boarding laid over silver oak joists of size 10cm x 6.50 cm spaced at abote 90 cm centre to centre and supported by casurina props of 10cm to 13 cm dia spaced at not more than 75 cm centre to centre etc. complete complying with the standard specificaiton. (Payment for centering shall be given after the concrete is laid)

Square Column

Column 0 to 3.3m ht above GL and below GL

Column above 3.3m to 4.3m ht from GL

column above 4.3 m to 5.3m ht from GL

column above 5.3 m to 6.3m ht from GL

column above 6.3 m to 7.3m ht from GL

Column above 7.3m to 8.3m ht from GL

column above 8.3 m to 9.3m ht from GL

column above 9.3 m to 10.3m ht from GL

column above 10.3 m to 11.3m ht from GL

column above 11.3 m to 12.3m ht from GL

column above 12.3 m to 13.3m ht from GL

column above 13.3 m to 14.3m ht from GL

column above 14.3 m to 15.3m ht from GL

Plain surface

0 m to 3.3m ht

3.3 m to 4.3m ht from GL

7.3 m to 8.3m ht from GL

11.3 m to 12.3m ht from GL

15.3 m to 16.3 m from GL

circular Column

Column 0 to 3.3m ht above GL and below GL

Column 3.3 to 4.3m ht above GL

Column 4.3 to 5.3m ht above GL

Column 5.3 to 6.3m ht above GL

Column 6.3 to 7.3m ht above GL

Column 7.3 to 8.3m ht above GL

Column 8.3 to 9.3m ht above GL

Column 9.3 to 10.3m ht above GL

Column 10.3 to 11.3m ht above GL

Column 11.3 to 12.3m ht above GL

Column 12.3 to 13.3m ht above GL

Column 13.3 to 14.3m ht above GL

Column 14.3 to 15.3m ht above GL

Curved surface

Column 16.3 to 17.3m ht above GL -Curved surface

Column 17.3 to 18.3m ht above GL -Curved surface

Column 18.3 to 19.3m ht above GL -Curved surface

Column 19.3 to 20.3m ht above GL -Curved surface

Supplying, fabricating and placing in position Mild Steel / Ribbed Tor Steel grills for all RCC works as per design given including cost of steel and G.I. binding wire in all floors etc. complete complying with standard specification. (Contractor has to make his own arrangements for the supply of steel and binding wire)

Supply and fabrication charges for making clampset sitable for Connecting main including cost of bending drilling holes suitable for bolts, painting one coat of red oxide etc complete and as directed by Department Engineer )

Supply and delivery of bolts and nuts 20mm dia and above x 90mm etc.,

Painting two coats for Exterior surface with approved Exterior Plastic Emulsion paint approved quality and colour over a priming coat, including thorough scrapping, clean removal of dirt, etc complete and including necessary plaster of paris, putty, wherever required etc, complete as per standard specification

Supply delivery and fixing of PVC Mould CI steps in position at 30cm centre to centre in staggered manner and as directed by departmental officers.

Labour for filling the coarse sand passing through a sieve of 10 meshes to 2.5 cm and retained in 20 meshes to 2.5 cm well washed and cleaned to be free from impurities including stacking.Plugging the bottom of the well with coarse sand of approved sizes and grade as directed by the Board officers.

Providing Cut stone set in CM 1:3 (one cement and three sand) using well dressed cut stone supporting inlet pipe of size 0.30 x 0.30 x 0.15m for service reservoir etc., complete as per standard specifications and as directed by Engineer-in-charge

Providing RCC inside ladder as per approved design

Providing RCC ventilator over roof slab and roof dome of S.R. (0.15 m dia)

Construction of RCC spiral staircase in RCC M20 Grade Concrete Mix as per the standard specifications of 1.80 m diameter of required height for approach to the roof of Service Reservoir with RCC Handrails including earthwork excavation, providing CC 1:4:8 mix, RCC footing 1:1.5:3 mix, GL platform etc., and also including cost of steel reinforcement, fabrication charges, scaffolding, centering, precasting charges, cement, painting etc. complete as per standard specifications and as directed by Engineer. The staircase shall be braced to the column of service reservoir at suitable interval. (in the BOQ, quantity column the exact height to be mentioned from GL to roof slab bottom to get total value of work to be done.

Supplying and fixing of RCC M20 Grade Concrete Mix as per the standard specifications for RCC Handrails of 0.91 m height over the top of roof slab of approved pattern and design including the cost of reinforcement, centering, precasting, finishing, curing etc., complete as per standard specifications and as directed by Engineer-in-charge

Supply, delivery and fixing in position of RCC manhole of size 0.60 m x 0.60 m including locking arrangement, cost of materials etc. complete and as directed by the Depart. officers.

Refilling the foundation with excavated earth including consolidation as directed by the Departmental officers.

Refilling with excavated sand complying with standardspecification for filling in foundation and basement.

100mm DIK7

Supply, delivery and fixing of pipes for OHT connections including civil works 100mm CI PIPE for inlet, outlet, overflow and 100mm CI pipe

2.50 LL OHT

Inlet (20.60 mtr)

OUTLET (17.55 mtr)

Scour (16.95 mtr)

Overflow (20.20 mtr)

0.60 LL OHT

Inlet (20.60 mtr)

OUTLET (17.55 mtr)

Scour (16.95 mtr)

Overflow (20.20 mtr)

Painting the Town Panchayat Emblem and writing the slogon in accordance with size and specifications as approved by the Town Panchayat Officers with approved colour and quality of paint on the colour and quality of paint on the exterior surface of Service

Drilling of borewells of size 6” to 8” dia. in sedimentary formation using hand boresets including insertion of casing pipes and removal of casing pipes etc., including collection of samples as directed by the Department Engineer.

Supply of the following UPVC Pipe 6 KSc Pipe as per IS specifications 4985/2000. 160 MM PIPE

Supply of the following UPVC Pipe 6 KSc Pipe as per IS specifications 4985/2000. 50 MM PIPE

Supply and Delivery DUCTILE IRON SOCKET/SPIGOT PIPES FOR CLASS K7 AS PER IS 8329/2000

Supplying and conveying of following sizes of DI Class K7 flanged pipes Pipes to site, confirming to specification as per IS:8329-2000 for standard length including cost of pipes, testing charges at factory, labour charges for loading, unloading and stacking at site etc.

Supply and delivery of DI D/F Gate (sluice) valves (soft seated) resilient seated soft sealing Gate Valves (Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or GGG 50, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163-89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and outside with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16.

Lowering of DI pipes and specials carefully into the trench and laying to proper grade and alignment including labour charges, incidental and operational charges etc complete as per standard specifications and as directed by the Departmental Engineer.

Pumping Main - 100mm DIK7

Connecting Main - 150mm DI/DF

Testing of M.S. / C.I. / D.I / P.V.C. /D.W,C, pipes with hydraulic testing equipment by filling with water (including cost of water @ Rs. 60/KL) and testing to recommended pressure in convenient stretches and attending the bursts if any occured during the test, excluding the cost of pipes but including other incidential and operational charges etc.,complete for the following diameters of pipes.

Pumping Main - 100mm DIK7

Connecting Main - 150mm DI/DF

Cutting of CI and DI pipes and specials true to axis and filing smoothly and finishing the ends complete, with / without water in the pipe including labour charges, incidental and operational charges etc complete as per standard specifications and as directed by Departmental Engineer.

Jointing C.I/ D.I-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials)

Jointing the C.I/ D.I Double flanged pipes and specials with rubber insertion to with IS638(1979) and M.S. bolts and nuts of IS 1364-1(2002), including cost of jointing materials such as bolt and nuts Rubber insertion and labourcharges etc., complete.

Supply and delivery of Open well Submersible pump set conforming to IS 14220 /2002 and as amended thereafter and BEE 3 Star Rated capable of discharging the following duties due to all causes. The pump shall be with stainless steel shaft and dynamically balanced bronze mixed type impeller, CI FG 200 grade casing and brass screws and rotor shall be of copper rod as per IS 613/1984 with ISI mark. The pump suitable for installation in sump with 1.1KV grade 3 core suitable copper flat submersible cable to a length of 15m with necessary cable joints. The non-return valve located at the top of the pump in the discharge outlet connection is to be designed with minimum friction. The pump should be directly coupled to 2880 RPM, three phase, 50 Hz (±5), 415V+6% & 415V-15% squirrel cage induction motor suitable for DOL upto 5 HP, Fully Automatic Air break Star Delta up to 20 HP and Auto Transformer starter for above 20 HP starting and for continuous operation.

800 lpm against a total head of 50m

10HP or Suitable

Supply, delivery, erection, testing and commissioning of following sizes of power shunt capacitor for power factor improvement, suitable to operate on 415V, 3Ph,50Hz A/C supply, on suitable angle iron frame-works at a height of 0.5m from the ground, including earthing and incidental civil works etc., complete.

Supplying and fixing of following capacity Triple Pole fuse carrier in MS Sheet steel encloure with provision for accommodating the TNEB meter including earthing etc., complete as per TANGEDCO which includes LT meter panel board

Supplying and fixing of following capacity Triple Pole SFU with fuses on suitable angle iron frame with earth connection only.

Capacity of M.V. Panel - 100 Amps

Supplying and laying following LTUG cables in a trench to be excavated at a depth of 2 ½ ' putting 6” layer of sand and covering the cable with brick and sand refilling the earth to make good as directed or in trench using cable trays with necessary support.

DO - 3 ½ core 50 sq.mm. for Income - (1 Runs for EB/DG & 1 run for APFC)

DO - 4 core 10 sq.mm - Panel to Starter

DO - 3 core 10 sq.mm - Starter to Motor

DO - 4 core 4 sq.mm. for Aux.supply

Supplying and fixing of cable gland and termination with Aluminium cable lugs for following PVC UG cable and with earth connection

DO - 3 ½ core 50 sq.mm.

DO - 3.5 core 10 sq.mm

DO - 3 core 10 sq.mm

DO - 4 core 4 sq.mm

Supply, delivery and erection of Three Phase 4 way 32 Amps, 10kA LDB with the following: 1 No of 40 A FP isolator for incoming supply 3 Nos. of 16A, DP RCCB 3 Nos. of 16A, SP MCB 1 No of 16A, DP MCB 3 Nos of 6A, DP MCB in sheet steel enclosure fitted with busbars and neutral links and suitable angle iron frame works with provision for earthing etc. complete.

Run of 2 of 2.5 sq mm PVC unsheathed copper single core cable in PVC pipe for mains with continuous earth connection by 14 SWG wire From the MCB DB to the Switch boards in office, store,and 16A power socket.

Wiring with 2.5 sq mm PVC insulated single core copper cables of 650 V Grade on suitable rigid PVC pipe on wall and ceiling with PVC accessories, with MS switch box covered with 3 mm thick hylam sheet with continous earth wire connection of 14 SWG TC wire.

Light points

Supply and installation of 240 V - 1 x 18 W LED TL fitting box type with enamelled reflector complete with all accessories - choke, starter, tube, etc. suitable for wall mounting or roof mounting on conduit tube.

Earthing as per ISI specifications with necessary masonary work.

Labour charges for the erection of submersible pumpset in borewell/ openwell including fixing and jointing submersible cable with proper clamps upto the starter to required depth and also fixing of riser pipes to the required depth valves erection clamps, pressure gauges upto the exterior wall of pump room and erection of panel board consisting of TPICN switches starter, Voltmeter, Ammeter, three pilot (indicating) lamps capacitor single phasing preventor, water level guard and laying and jointing the cables and twin earthing as per IE rules etc., complete and testing the pumpset and trail run for 10 days.

5HP to 10HP

Supply, conveying and fixing CI specials as per the latest revision of IS 1538 including with ISI markings on it including earthwork excavation, lowering into the trenches, aligning, refilling the trenches with excavated soil, watering and ramming to consolidation, etc.

150 x 150mm Flange tee

100 x 150mm Taper

150mm 90 deg bend

150 mm dia CI blank flange

Supply, conveying and fixing following CI pipes as per latest revision of IS 1536 with ISI markings on it excluding earthwork excavation

150 mm D/F C.I cut pipe - 0.5m long

150 mm D/F C.I cut pipe - 1.0m long

Supplying, delivery and installation at site, conveying and fixing the CI sluice valves as per IS 14846/2000 PN 1 with ISI marking including loading, transportation charges and stacking etc complete as per specifications

150mm Sluice valve

Supplying, delivery and installation at site, conveying and fixing the CI D/F Reflux valves as per IS 5312/Part I /84 with Bye-pass arrangements with ISI marking including loading, transportation charges and stacking etc complete as per specifications

150mm NRV

Supplying, delivery and installation at site, conveying and fixing the CI double air valve as per IS14845/2000 with ISI marking including loading, transportation charges and stacking etc complete as per specifications

50mm Double Air valve