RAIN WATER HARVESTING SYSTEM AT GOVT. SR. SEC. SCHOOL (GIRLS) AT ROOPNAGAR

Rain Water Harvesting System

Drilling of bore hole 250mm i/d with hand boring or any mechanical method as per site condition including all arrangement for erection, dismantling& transportation of boring equipment to site of work.

Supply & lowering of 160 mm o/d 6 Kg/ cm2 thick PVC pipes as per specifications including cost of tools plants at site of proposed bore complete in all respects.

(160 mm ) o/d PVC pipe

Supplying and lowering 160mm o/d PVC slotted pipe slot size 1.58mm and 3.0mm complete in all respects.

Supply & fixing end cap complete in all respects.

Supply of MS Clamp 1.20 Mtr length made from M.S Flat (100mm x 10mm)

Supply at site of work gravel size 3-6 mm pouring and packing in annular space between the pipe assembly and the bore etc.

Providing & Fixing PVC Jalli

Supplying at site Wooden Box of suitable size with Lid & locking arrangment for preserving strata sample collected from the bore.

Supplying & Fixing of PVC End cap

Supplying, assembling, lowering and fixing in vertical position in bore well unplasticized PVC medium well screen (RMS) pipes with ribs, conforming to IS:12818, including hire & labour charges, fittings & accessories etc. all complete, for all depths, as per direction of Engineer-in-charge. (for Filter Media)

Providing & Fixing PVC tee for fixing of PVC strainer in hosing pipe

Harvesting Recharge Well 2.50 Mtr. Dia 2.50 m Working Depth

Earth work in excavation of foundation trenches etc. for storage and sedimentation tank, filter bed screening chamber etc.

Providing orange colour safety footrest of minimum 6mm thick plastic encapsulated as per IS:10910 on 12mm dia steel bar confirming to IS: 1786 having minimun cross section as 23mm x 25mm and over all minimum length 263mm and width as 165mm with minimum 112mm space between protruted legs having 2mm tread on top surface by ribbing or chequering besides necessary and adequate anchoring projections on tail length on 138 mm as per standard drawing and suitable to with stand the bend test and chemical resistance test as per specification and having manufacturer's permanent identification mark to be visible even after fixing, including fixing in manholes with 30x15x11.5cm cement concrete block 1:2:4 (1 cement: 2 sand: 4 stone aggragate) complete as per design.

Cement concrete 1:8:16 with 40 mm gauge stone aggregate

B.B. Work 1:5

10 mm thick cement plaster 1:3

Providing and placing in horizontal layers filtering media screened, washed and cleaned as described below:-

Fourth Layer :----- Bajri (Coarse) screened, cleaned and washed and graded from 20mm to 25mm (from Pathankot or approved equivalent quarry).

Third Layer :----- Bajri screened, cleaned and washed and graded from 6mm to 20mm (from Pathankot or approved equivalent quarry).

Second Layer :----- Coarse sand screened, cleaned and washed and graded from 3mm to 6mm (from Pathankot or approved equivalent quarry).

Providing and fixing G.I. Sheet 0.80mm thick garage doors, with 40mm x 40mm x6mm angle iron frame with diagonal braces, 3.15mm thick gusset plates at the top and 25mm dia meter pulleys and T-iron 50mm x 50mm x 6mm guides at bottom including locking arrangement with handles and pintles, etc. complete in all respect.

Pipe Work

Providing, Laying , fixing & jointing of P.V.C. Pipes as per ISI-4985 (ISI marked with the prior approval of Engineer-in-Charge) along the Trenches and laying the same in Trenches to correct alignment and gradients, cutting, jointing and testing complete as per specifications.

160 mm o/d PVC pipe

200 mm o/d PVC pipe

250 mm o/d PVC pipe

Construction Work

Excavation of pipe line in trenches and pits up to 1.5 Mtr .Depth complete

Providing and fixing C.I Grating size 100mm x 100mm

Bottom khurra on ground 1.2m 0.6m consisting of bricks on edge laid in cement mortar 1:3 over 7.5 cm cement concret 1:8:16 including 12.5mm thick cement plaster 1:3

Providing & Laying of PVC pipe as per ISI 4985-2000 4kg/cm2 to site of work (Verticle Pipe for connected with old Rain Water Pipes)

110 mm o/d PVC pipe (24 x 1.5)

Cutting chase in brick walls in cement or in floor for embedding G.I. or C.I pipes line and making good the same to its original condition. Size 150 mm x 150 mm

Dismentling of Interlocking tiles & relaying Back in original condition complete in all respect

New vertical Rain Water pipe connection with old pipe including cutting, threading, specials etc, complete in all respects.

Haudies (Size 0.45 Mtr x 0.45 Mtr.)

Construction of Haudi internal size 0.45 Mtr. x 0.45 Mtr. x 0.45 Mtr. depth in 23mm brick masonry 1:5, bed 40mm thick cement concrete 1:2:4, 150mm thick 1.20m x 1.20m base lean concrete 1:8:16, 75mm thick RCC Slab M20 including Cold twisted deformed bars FE500 Grade, 12.5mm thick inside plaster 1:2 complete as per Drawing attached and as desired by the Engineer in Charge

Haudies (Size 0.90 Mtr x 0.90 Mtr.)

Construction of Haudi internal size 00.90 Mtr. x 0.90 Mtr. x 0.90 Mtr. depth in 23mm brick masonry 1:5, bed 40mm thick cement concrete 1:2:4, 150mm thick 1.65 m x 1.65m base lean concrete 1:8:16, 75mm thick RCC Slab M20 including Cold twisted deformed bars FE500 Grade, 12.5mm thick inside plaster 1:2 complete as per Drawing attached and as desired by the Engineer in Charge

Carriage of Material

Extra for Carriage of Fine & Course aggregate i.e. Sand & Bajri from query to water works site beyond 5 km (Qty as worked out for the components to be constructed detail 1.9 & rate as per lead on CSR for the applicable lead beyond first 5 km) 10 km-5km

Add 5% for unseen items at the time work executed at site