Installation of Reverse/Recharge bore-wells in low lying area for protecting the agriculture land from flood water at village Rajound (From Sr. No. 11 to 20)

Amount

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, lift up to 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m. All kinds of soil. HSR 4.14.1

Earth work in excavation by mechanical means (Hydraulic excavator)/manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth lead up to 50 m and lift up to 1.5 m, as directed by Engineer-in-charge. All kinds of soil HSR 4.12.1

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work below plinth level and up to Floor IV level: 1:3:6 (1 Cement : 3 coarse sand (zone-Ill) : 6 graded stone aggregate 20 mm nominal size) HSR 6.1.4

Brick work with common burnt clay modular bricks of class designation 10 in foundation and plinth in: Cement mortar 1:4 (1 cement: 4 coarse sand) HSR 7.21.1

12mm thick Cement Plaster of mix 1:4 HSR 11.5.3

Boring/drilling bore well of required dia for casing/ strainer pipe, by suitable method prescribed in IS: 2800 (part I), including collecting samples from different strata, preparing and submitting trata chart/ bore log, including hire & running charges of all equipments, tools, plants & machineries required for the job, all complete as per direction of Engineer-in-charge, up to 90 metre depth below ground level. 300 mm dia. All types of soil HSR 33.6.1

Supplying, assembling, lowering and fixing in vertical position in borewell unplasticised PVC medium well casing(CM) pipe of required dia conforming to IS :12818 including required hire and labour charges fitting and accessories etc all complete for all depths as per direction of engineer in chief 200 mm nominal size dia HSR 33.8

Providing & laying of well casting UPVC pipe 400mm dia (CS & CM) 6 Kg. pressure/cm2 (ISI Marked) specification as per IS 12818-2010 (N.S).

Jali,Rivet, brass, disco ,solvent & cap specification as per IS 12818-2010 (N.S).

Supplying, assembling, lowering and fixing in vertical position in bore well, ERW (Electric Resistance Welded) FE 410 plain slotted (having slot of size 1.6/3.2 mm) mild steel threaded and socketed/ plain bevel ended pipe (type A) of required dia, conforming to IS: 8110, of reputed and approved make, having wall thickness not less than 5.40 mm, including painted with outside surface with two coats of anticorrosive bitumastic paint of approved brand and manufacture, including hire & labour charges, fittings & accessories, all complete, for all depths, as per direction of Engineer-in-charge.200 mm nominal size dia HSR 33.11.3

Development of tube well in accordance with IS : 2800 (part I) hour and IS: 11189, to establish maximum rate of usable water yield without sand content (beyond permissible limit), with required capacity air compressor, running the compressor for required ime till well is fully developed, measuring yield of well by "V'' notch method or any other approved method, measuring static level & draw down etc. by step draw down method, collecting water samples & getting tested in approved laboratory, i/c disinfection of tube well, all complete, including hire & labour charges of air compressor, tools & accessories etc., all as per requirement and direction of Engineer-in-charge. HSR 33.19

Supplying, filling, spreading & levelling stone boulders of size range 5 cm to 20 cm, in recharge pit, in the required thickness, for all leads & lifts, all complete as per direction of Engineer-incharge. HSR 33.12

Layer of charcoal HSR EL 253

Supplying, filling, spreading & levelling gravels of size range 5 mm to 10 mm, in the recharge pit, over the existing layer of boulders, in required thickness, for all leads & lifts, all complete as per direction of Engineer-in-charge. HSR 33.13

Supplying, filling, spreading & levelling coarse sand of size range 1.5 mm to 2 mm in recharge pit, in required thickness over gravellayer, for all leads & lifts, all complete as per direction of Engineer -in-charge. HSR 33.14

To evaluate the required sub soil strata and water table in the fields soil conservation report (N.S).

Six Side cross tee 200 mm dia (N.S).

PVC reducer 400 mm x 200 mm dia (N.S).

End Cup 400 mm dia (N.S).

Gravel packing in tube well construction in accordance with IS: including providing gravel fine/ medium/ coarse, in required grading & sizes as per actual requirement, all complete as per direction of Engineer-in-charge. HSR 33.15

Sanchit

THE KHERI GULAM ALI CO-OP SOCIETY

RAJA RAM CONTRACTOR