PROVN OF 01 X RAIN WATER HARVESTING (RECHARGE PIT) AT OFFR MESS AT OD, PROVN OF 01 X RAIN WATER HARVESTING (RECHARGE PIT) AT MAIN OFFICE/ HQ COMPLEX COD, PROVN OF 01 X RAIN WATER HARVESTING (RECHARGE PIT) AT NAVDEEP HALL AT COD AND PROVN OF 01 X RAIN

Excavation over areas not exc 1.5 m deep and getting out in hard /dense soil complete all as specified and directed.

Excavation over areas exc 1.5 m but not exc 3.0 deep and getting out in hard /dense soil complete all as specified and directed.

Excavation in trenches in soft/loose soil n.exc 1.5 mtr wide and n.exc 1.5 mtr deep for foundation ,shaft ,wells ,manhole etc and getting out as in hard /dense soil complete all as specified and directed.

Returning, filling in, including spreading levelling, watering and well ramming in layers not exc. 25 cm deep as in soft/loose soil complete all as specified and as directed.

Supply only integral water proofing compound ISI marked complete all as specified and directed.

S & F 110 mm dia PVC (SWR) pipes single socketed in any length with rubber ring joints, fixed to wall / Floor complete all as specified and directed.

S & F 110 mm dia PVC (SWR) bend with oval access door complete all as specified and directed.

S & F 110 mm dia PVC (SWR) 'T' junction double (Double T) equal or unequal complete all as specified and directed.

S & F for HDPE (DWC) pipe 160 mm dia of working pressure 6 kg per square cm confirming to relevant IS standards including jointing with sealing ring confirming to relevant IS standards leaving 10 mm gap for thermal expansion complete all as specified and directed. NOTE: lifing at any height, loading, unloading all taxes charges, all E & M, T & P as complete job Nothing extra will be paid whatsoever the case may be.

Supply and fixing of non-woven Geotextile fabric having thickness of 400 GSM , Having minimum tear Strength of 250 ASTM D4533, width wise atleast 215 ASTM D4533 having puncture strength of 1550 plus as per ASTM D6241 as per authorised applicator, Having elongation at Break % of 57 plus as per ASTM D 4595 in Two layers, made out of long fibers to hold the modules and protect liner including cutting, sizing, heat welding, and needle punched for high porosity and proper percolation complete all as specified and directed. NOTE: lifing at any height, loading, unloading all taxes charges, all E & M, T & P as complete job Nothing extra will be paid whatsoever the case may be.

Providing and fixing of CGWB/GRIHA approved Pure Rain Filter having desilting suspended solid catcher made out of FRP with strainers having steel bucket of stainless steel 304 grade with long fiber foam having a size of around 780 mm dia, green colour filtration capacity 40 kilo liters per hour with porosity of 60 micron complete all as specified and directed. NOTE: (i) Total depth of filter shall be 2000mm including two filter extension. (ii) lifing at any height, loading, unloading all taxes charges, all E & M, T & P as complete job Nothing extra will be paid whatsoever the case may be

Providing & Fixing of Co-polymer based rainwater harvesting structure including supply of cross wave of size 494 mm x 494 mm x220mm with minimum void ratio of 94.7% having a weight of 1.8 kg and spacers having size of 988 mm x 240 mm x 25 mm having a weight of 0.8 kg of approved make and arranging the same in as directed by the engineer -in-charge The rates are inclusive of all necessary transportation, loading, unloading excise, vat control etc.as per entire satisfaction of Engineer -in-charge. Note: lifing at any height, loading, unloading all taxes charges, all E & M, T & P as complete job Nothing extra will be paid whatsoever the case may be complete all as specified and directed.

Supply and fixing of HDPE high EVA liner having a thickness of 1.2 mm for wrapping around the board pipe 160 mm dia the collection of water heat welding onsite and of site as per the requirement.

Supply, installation and testing of FRP based access Chambers, each having of size 500 mm x 500mm x 500 mm with cover to have access in the tank with thickness as per ASTM D4161 or BSEN 124 complete all as specified and directed.

Providing orange colour safety foot rest of minimum 6mm thick plastic encapsulated as per IS : 10910 on 12mm dia steel bar conforming to IS : 1786 having minimum cross section as 23 mmx25 mm and over all minimum length 263mm and width as 165 mm with minimum 112 mm space between protruded legs having 2 mm tread on top surface by ribbing or chequering besides necessary and adequate anchoring projections on tail length on 138 mm as per standards and suitable to with stand the bend test and chemical resistance test as per specifications and having manufacture’s permanent identification mark to be visible even after fixing. including fixing in manholes with 30x20x15 cm cement concrete block 1:3:6 ( 1 cement : 3 coarse sand : 6 graded stone aggregate 20 mm nominal size) complete all as specified and directed.

M & L for plain cement concrete,1:4:8, type D2 (using 40 mm graded stone aggregate) as in foundation, filling and mass concrete complete all as specified and directed.

M & L for plain cement concrete,1:2:4, type B1 (using 20 mm graded stone aggregate) as in roof kerb or mud stops rounded or chamfered on edge including necessary form work complete all as specified and directed.

M & L for brick work with sub class ‘B’ old size bricks straight or curved on plan exc. 6.00 m mean radius built in cement mortar 1:4 complete all as specified and directed.

M & L for 10 mm thick rendering in cement mortar 1:3 on fair faces of brick work or concrete surfaces and finishing the surface even and smooth complete all as specified and directed.

M&L for RCC Nominal mix 1:2:4 type B-1 using 20 mm graded stone aggregate in foundations, including rafts, footings, foundation beam, plinth beams, bases for columns, etc, basement slabs, under-reamed piles and mass concrete over 1.50 spam complete all as specified and directed.

Use and waste formwork to sides of concrete foundations, footings bases of columns, raft and raft beams, sides and soffits (if any) of foundation and plinth beams, and similar work, vertical or to batter complete all as specified and directed.

M & L for mild steel TMT bars 10 mm dia and over, cut to length, bent to shape required, including cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9 mm dia or securing with clips complete all as specified and directed.

M & L for sand filling under floors or in foundations including watering and consolidation as required complete all as specified and directed.

Supplying, filling, spreading & levelling stone aggregate 20mm nominal size in recharge pit, in reduced thickness, for all lead & lifts, complete all as specified and directed.

Constructing brick masonry manhole (silt chamber type) inside size 1.20 X 0.90 x 1.20m deep with FPS brick class designation 75 in cement mortar 1:4 (1 Cement: 4 coarse sand ) 100 mm thick RCC top slab with 500mm dia opening in cement concrete 1:2:4 (1 cement: 2 C/sand: 4 graded stone agg, n/size reinforced with 18.92 kg cold twisted sreel bars 20cm foundation concrete 1:4:8 (1 cement: 4 C/sand: 8 graded stone agg 40mm size) inside plastering 12 mm thick with cement mortar 1:3 (1 cement: 3 C/sand) finished with a foating coat of neat cement and providing 75 mm thick bed concrete in 1:2:4 mix (1 cement: 2 C/sand: 4 graded stoneagg . 20mm n/size) including neat cement punning inside the manhole complete as per standard site requirment shall be measured from invert level of manhole including manhole cover and frame etc. complete all as specified and directed.

Disposal of moorum/building rubbish/ malba/ similar unserviceable, dismantled or waste material by mechanical transport including loading, transporting, unloading to approved municipal dumping ground for lead upto 10 km for all lifts, complete all as specified and directed.

Trial Bore of 250 mm dia upto 200 mtr depth below ground level in any kind of soil strata including hard stone / Boulder etc. complete all as specified and directed.

M & L for plain cement concrete 1:4:8 Type D-2 (using 40 mm graded stone aggregate) as in surface channel or drain or benching in manhole including necessary foram work etc,complete all as specified and directed.