modular rain water harvesting work

Amount

Description

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 upto 50 m and lift upto 1.5 m, as directed by Engineer-in charge. All kinds of soil

P.C.C. 1:4:8 ( 1 cement : 4 coarse sand (zone-III) derived from natural sources : 8 graded stone aggregate 40 mm nominal size derived from natural sources)

Brick work with common burnt clay FPS (non modular) bricks of class designation 7.5 in foundation and plinth in Cement mortar 16 (1 cement coarse sand 6 corase sand)

12 mm cement plaster of mix: 1:4 (1 cement: 4 fine sand)

Providing and fixing on wall face 110 mm diameter unplasticized Rigid PVC rain water pipes conforming to IS 13592 Type A. including jointing with seat ring conforming to 185382 leaving 10 mm gap for thermal expansion, Single socketed pipes

Supplying, assembling, lowering and fixing in vertical position in bore well 200mm dia unplasticized PVC medium well screen (RMS) pipes with ribs conforming to IS: 12518, including hire & labour charges, fittings & accessories etc all complete, for all depths, as per direction of Engineer in-charge

Boring/drilling bore well of required dia for casing/strainer pipe. By Suitable method prescribed in IS: 2800 (part-1), including collecting samples from different strata, preparing, and submitting strata chart/ bore log, including hire & running charges of all equipment, tools, plants & machineries required for the job, all complete as per direction pf Engineer-in-charges, upto 90 meter depth below ground level

Supplying, filling, spreading & leveling 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

Providing With 20 mm diameter round bar foot rests including fixing in manholes with 20x20x10 cm 19.17.2 cement concrete blocks 1:3:6 (1 cement: 3 coarse sand: 6 graded stone aggregate 20 mm nominal size) as per standard design:

Supplying and fixing C.I. cover without frame for manholes: 455x610 mm rectangular C.I. cover (light) duty) the weight of the cover to be not less than 23 kg.

Providing and fixing M.S. clamp of required dia to the top of casing/housing pipe of tubewell as per IS:2800 (part 1) including necessary bolts & nuts of required size complete. 200 MM clamp

Providing with installation and supply of Polymer-based modules (Honeycomb design on each plate) made up of 100% recycled polypropylene capable of taking light vehicular movement. These modules are made from a combination of large and small plates. Each large plate should have at least fourteen locking slots to give stability to the tank. This tank should have optimum connection and block stability using double lock stability. (The design to be approved from the Engineer in Charge) complete as per directions of Engineer in Charge. qty as per rate analysis

Providing and installing Geotextile Stitching. The Geotextile material shall be UV resistant, conforming to ASTM 154/EN 12224, non-woven geotextiles having thic1kness of 400 GSM, having minimum tear strength of 250 kg/cm2 as per ASTM D4533, width wise at-least 215 kg/cm2 as per ASTM D4533 having puncture strength of 1550 kg/cm2 as per ASTM D6241, having elongation at break of 57% plus as per ASTM D4595 in two layers, made out of long fiber to hold the modules including cutting, sizing, heat welding and needle fibers to hold the modules including cutting, sizzing heat welding and needle punched for high porosity and proper percolation complete as per entire satisfaction.

Supply of FRP Filter having SS 304 mesh bracket 700 mm dia and height 1000mm capable of removing particles from inflow water with double inlet and outlet FRP filter should be Griha certified under criterions 21& 18 and SVAGRIHA criterion 9. Certificate should be valid on date of installation

M/S S K ENTERPRISES (BID ID -349447)