Provn of water supply lines and connected accessories to various security post at AF Stn Tezpur and Provn of dehumidifier for ration stand at AF Stn Tezpur

Drilling, development and reaming in bore 50 mm dia casing pipe reduced to 25 mm below ground level exceeding 22 metre depth and upto 28 metre depth, in any kind of soil strata including hard stone / boulder and including developing the bore well by continuously pumping for 02 hours to determine safe pumping yield of clear water and submission of testing report(s), complete all as specified and directed. (Note: For 28 Nos Bore well).

Supply, lowering and fixing in position 50mm nominal bore, unplaticized polyvinyle chloride (PVC-U) casing pipe for bore / tube wells, ISI marked (IS 12818:2010), complete all as specified and directed.

Supply, lowring and fixing in position 50 mm nominal bore, unplacticized polyvinyle chloride (PVC-U) ribbed screen pipe for bore/tube wells, complete all as specified.

Supply , lowering and fxing in position 32 mm nominal bore, unplacticized polyvinyle chloride (PVC-U) casing pipe for bore / tube wells, ISI marked (IS 12818:2020) complete all as specified and directed.

Supply and fix, cast copper alloy vertical check valve, 32mm size ISI marked [(IS 778-1984 (Reaffirmed 19950)], complete all as specified and directed.

Supply and fix, unplacticized polyvinyle chloride (PVC-U) casing reducer 50 mm x 32 mm for casing pipe of bore / tube wells, complete all as specified and directed.

Supply and fix, unplacticized polyvinyle chloride (PVC-U) end cap, 50 mm size, for casing pipe of bore / tube wells, complete all as specified and directed.

Supply and fix unplacticized polyvinyle chloride (PVC-U) casing cone SCH-80, size 32mm, for casing pipe of bore / tube wells complete all as specified and directed.

Providing water logging test with electro logging equipment and required machinery for ascertaining / logging aquifers encountered in trial bore against serial item No here in before and arranging and defining the water availability test giving test report of Geo-Hydrologist from CGWB Guwahati, recommending water bearing zones, complete all as specified and directed.

Supply, installation, testing and commissioning of Electric water pump (Deep well Jet) suitable for 240 V, 50 Hz single phase system having capacity 1 HP, suction and delivery 32x25mm with all accessories including making connection to inlet and delivery pipeline, complete all as specified and directed.

Supply and fix injector of size 32mm bore and same in position with all necessary conection, complete all as specified and directed.

Supply and connecting two core PVC insulated submersible cable for 2.50 Sq.mm (Nominal area) with multi stranded coper conductor, 1100 Volts grade conforming to IS: 694 connected from starter to pump motor, complete all as specified and directed.

Supply and fix direct on line starter (DOL starter) with relay range 10.5 to 17.5 Amps suitable for pump / motor 1 phase, 230V, 50 Hz with maximum motor output of 1 HP all as per Make CG or equivalent model of Make L&T/BCH/Seimens/ABB, complete all as specified and directed.

Supply and fix for 25 mm bore galvanised steel tubing 'medium grade' (IS-1239) with all fittings, fixed to walls and ceilings or laid in floors and connections, complete all as specified and as directed.

Excavating in trenches not exc. 1.50M wide and not exc. 1.50M in depth for foundation etc and getting out in soft /loose soil, complete all as specified and directed.

Returning filling in soft/loose soil, including spreading, leveling, watering and well ramming in layers not exceeding 25 Cms in thickness, complete all as specified and directed.

Removing excavated soils n.exc 50m and depositing where directed at a level n.exc 1.5m above the starting point, complete all as specified and directed.

Supply and fix gun-metal, globe or gate valves 25mm dia, with iron wheel head, screwed both ends for iron pipe and fixed, complete all as specified and directed.

S&F sheet metal enclosure MCB DB 4 way SPN, double door, with 200 Amp rated bus bar including earth & neutral link with fixing accessories, complete all as specified and directed.

S&F miniature circuit breaker (MCBs) single pole, 240 volts, 10 KA, 5 to 32 Amps, 'C' curve, complete all as specified and directed.

S&F miniature circuit breaker (MCBs) single pole and neutral, 240 volts, 10 KA, 5 to 32 Amps, 'C' curve, complete all as specified and directed.

Material and labour for PCC 1:4:8 type D-2 using 40mm graded stone aggregate (for foundation) including necessary form work, complete all as specified and directed.

Chemical analysis of water collected on one bottle of untreated water (ground water) collected from different borewells as sample for iron contents with standards of quality for drinking water at Defence Research Laboratory (DRL) Tezpur (Assam) or any other approved Govt Laboratory and producing the test certificate separately for each sample to Engineer-in-Charge.

M&L Earthing complete with galvanized steel earth plate electrode 600mm x 600mm x 6mm thick buried directly in ground (earth pit not less than 2.25 mtr deep below normal ground level) with top edge of plate not less than 1.5 mtr below normal ground level connected to galvanized 4 mm dia earth wire as earthing lead upto 7.5 mtrs from testing point fixed by means of steel bolts, nuts, check nuts and washer, of galvanized earth wire protected by 25mm bore medium grade galvanised iron pipe and other end connected to earthing test point including funnel with watering pipe of 20mm bore light grade galvanised iron, wire mesh, charcoal or coke and common salt in alternate layer of 15cm (compacted thickness) all around earth electrode with concrete earth pit in PCC (1:3:6) type C-1 50mm thick precast RCC M-20 nominal mix cover slab of size 450mm x 450mm reinforced with 8mm dia TMT bar 10cm C/C and suitable handle of 10mm dia round bar including necessary execavation, earth work in soft / loose soil and deposited soil to a distance n.exc 50 M and necessary testing complete all as shown in electrical plate No 3 of MES Shedule Part -I.

Supply and install Bry-Air Compact Dehumidifier FFB 300 (300 CMH Capacity) rotary type and dries the air by process of continues physical absorption, non toxic, non flammable with maximum moisture removal capacity, complete all as specified and directed. Note : Cost of outgoing cables/ DBs/ MCBs as per site requirement shall deemed to be included in the quoted unit rates.