PROVN OF 01 X BOREWELL AT 49 MVH UNDER GE CENTRAL BANGALORE

Amount

M&L for drilling of borehole through any kind of soil, boulders, rocks etc. for a bore size 150 mm dia as required at site for a depth upto 35 mtrs from ground level including disposal of spoil from the site of work complete all as specified & as directed.

All as per Item Sl No : 01 here in above but for depth exceeding 35 mtrs & upto 70 mtrs below ground level complete.

Electric logging of bore for precise delineation of granular zones & also the quality of ground water including report interpretation complete all as specified & as directed. NOTE:- Electric logging shall be carried out by any approved Govt Agency.

Supplying and assembling including jointing, lowering & fixing in position ERW casing pipe fine cut of internal dia 150 mm bore of thickness 7 mm confirming to IS 4270-2001 (ISI marked) including jointing of pipe by necessary electric arc welding both sides. The pipe shall be duly painted with anti-corrosive paint suitable for drinking water purpose complete all as specified & as directed. MAKE : TATA/JINDAL/ PRAKASH

Supplying and assembling including jointing, lowering & fixing in position ERW casing pipe fine cut of internal dia 150 mm bore of thickness 5.4 mm confirming to IS 4270-2001 (ISI marked) including jointing of pipe by necessary electric arc welding both sides. The pipe shall be duly painted with anti-corrosive paint suitable for drinking water purpose complete all as specified & as directed. MAKE : TATA/JINDAL/ PRAKASH

Supply and fixing well cap suitable for 150 mm bore housing pipe made out of 6 mm thick steel plate complete all as specified and directed. NOTE : After completion of the work well cap will be used to keep the bore well closed until the submersible pumping set is installed.

M&L for development of tube well with air compressor of suitable capacity till sand/mud free water of potable quality is obtained (Compressor with accessories & tube etc. shall be arranged by the contractor) complete all as specified & as directed.

M & L for Yield test for the bore well by continuously pumping for 8 hours to determine safe pumping yield.

Supply only strata sample box with glass cover 3mm thick having internal dimension 1000x600x100mm made out of 20mm thick wrought Ist class hard wood shisham with hinges, hasp and staple including polishing complete with samples at various depth evenly 2 mtr interval met in boring including strata chart in duplicate all as directed and specified.

M&L for sanitary sealing of tube well with PCC (1:2:4) type B1 of suitable size using 20 mm graded aggregate complete all as specified and as directed.

Testing of water from approved Govt lab for potability by doing chemical and bacteriological analysis as per norms of WHO and submission of test reports to the entire satisfaction of Engineer-in-Charge.

High density polyethylene pipes (HDPE) 50 mm dia of pressure rating 16 kg/cm2 lowering into bore well all as directed.

S&F flat submersible cable 3 core multi stranded copper conductor PVC insulated, water proof, ISI marked of size 6 sqmm for connecting from starter to bore well submersible pump sets complete all as specified and as directed. MAKE : FINOLEX/HAVELLS/RR KABEL

Supply and fixing steel rope flexible 10 mm dia with GI clamps, nuts, bolts, washer etc for fixing of submersible pump set complete all as specified & as directed.

S&F mild steel clamp suitable for 50 mm dia column pipe made out of 12 mm thick MS plate fabricated to shape, including drilling holes, nuts, bolts, washers etc complete all as specified & as directed.

M&L for earthing complete with galvanized steel earth plate electrode 600 x 600 x 6.3 mm thick burried directly in ground (in vertical position) earth pit not less than 2.25 mtr below normal ground level with the top edge of the earth plate not less than 1.5 mtr (B.G.L.) and connected to galvanized iron earth strip 32 x 6 mm by means of bolts, nuts, check nuts, and washer of galvanized iron including PCC (1:2:4) type B1 precast RCC cover slab with suitable handle made of 8 mm dia round bar, including necessary excavation and earth work in any type of soil, 20 mm dia med grade galvanized steel tube for watering with one end fixed with cast iron funnel and wire mesh, 40 mm bore light grade galvanized steel tubing for drawing earth lead GI strip protection & common salt, charcoal in alternate layers etc. complete all as shown in EP No 3 of SSR Part 1 and testing on completion complete.

Supply, jointing, testing and laying in trenches/floor/wall etc pipes galvanised iron "Medium grade" ISI marked with all running fittings of size 50 mm bore complete all as specified and as directed. MAKE : JINDAL/TATA/PRAKASH

Supply, install, testing & commissioning of gun metal globe or gate valve 50 mm dia, ISI marked with iron wheel head, screwed both ends for iron pipe including all necessary accessories complete all as specified and as directed. MAKE : KIRLOSKAR/LEADER/ZOLOTO.

All as per item No 19 above/here-in-before but 40 mm bore complete. MAKE : KIRLOSKAR/LEADER/ ZOLOTO.

All as per item No 19 above/here-in-before but 25 mm bore complete. MAKE : KIRLOSKAR/LEADER/ ZOLOTO.

Supply, install, testing and commissioning of multi stage submersible pump set (Open well type ) with bronze impeller, directly coupled with motor, suitable for minimum total head 337 meter and discharge min 50 LPM yeild operated on AC 3 phase, voltage range 300V-440V, 50 Hz. The motor casing shall be of stainless steel, pump shaft / motor shaft shall be of stainless steel, pump bowls shall be of high graded cast iron complete all as specified and directed. The pump and motor shall comply to all the requirements of relevant IS. MAKE : KSB/CG/CALAMA.

Provision of trenchless bore using mechanical numatic drilling equipment for passing electric cables through HDPE pipe of 80mm dia under the existing bituminous/WBM road/PCC hard standings, depth range not less than 1.0 mtr and upto 1.5mtr and making good to the distrubed surfaces of road to match with its existing specifications all as specified and directed by engr-in-charge at site. Note : 1. Quoted rates deemed to be inclusive of necessary earth work, transportation charges of Drilling machine, and cost of HDPE pipe and passing pipe through bore complete. 2. Any damage to MES assets caused during trenchless bore shall be recitfied by the contractor at his own cost.

Supply & laying XLPE insulated, PVC sheathed, strip armoured electric cable with aluminium conductor (stranded) working voltage upto 1100 volt of 16Sqmm 4 core as per IS 7098 Pt I in trenches, culvert, through pipe etc including connecting both end with proper size of alluminium lugs duly crimped with die press crimping device and cable gland complete all as specified and directed by Eng-in-charge Note: Excavation, earth work, sand cushioning, cable cover, returning/filling will be measured & paid seperately.

Excavation in trenches n.exc 1.5m wide and n.exc 1.5m in depth for laying of DI/GI pipes of sizes in soft loose soil complete all as specified & as directed.

Returning, filling in including spreading, levelling, watering and well ramming in layers n.exc 25cm thick complete all as specified & as directed.

Removing of surplus soil n.exc 50m and depositing where directed at a level n.exc 1.5m above the starting point complete all as specified & as directed.

Spreading river sand to required depth at bottom and top for cable cushioning (not less 18 cm thick in top layer after punning) all as specified in SSR Part-I.

Supply and lay common burnt locally available best quality old size bricks of sub class B laid at right angle on the cable complete in trenches for cable protection complete all as directed by Engr-in-charge.

S & F ball brass valves, high pressure, with copper float & fly nut complete, screwed for iron pipe or brass ferrule of size 25 mm dia incl testing complete all per IS - 1703:2000.

S & F ball brass valves, high pressure, with copper float & fly nut complete, screwed for iron pipe or brass ferrule of size 40 mm dia incl testing complete all per IS - 1703:2000.

S & F ball brass valves, high pressure, with copper float & fly nut complete, screwed for iron pipe or brass ferrule of size 50 mm dia incl testing complete all per IS - 1703:2000.

Supply only PH test kit with coloured sample covered under BTB (range 6.0 to 7.0) or phenol red (range 6.8 to 8.4) & test-tubes with necessary fitments and 100 ml testing solution in rexene finish wooden box complete.

S S BUILDERS

MAJ CONSTRUCTIONS