SPECIAL REPAIR BY REPLACEMENT OF 2 NOS BER BOREWELLS WITH NEW BOREWELLS AND CONNECTED ITEMS AT WT STATION AVADI UNDER AGE(I) NAVY CHENNAI

Amount

Excavation in trenches, not exceeding 1.5 mtr wide and not exceeding 1.5 mtr in depth for laying pipe of water supply line and getting out in hard/dense soil complete all as specified and directed by Engineer in Charge

Returning, filling in, including spreading, levelling watering and well ramming in layers not exc 25 cm complete all as specified and directed by Engineer in Charge

Removing excavated materials exc 250 m but n.exc 500 m and depositing where directed complete all as specified and directed by Engineer in Charge

Supply and spread clean dry river sand in trenches including levelling, punning for cushioning of cables complete all as specified and directed by Engineer in Charge Note :- Punned thickness of sand cushioning only shall be measured and paid.

Supply and lay in trenches burnt bricks sub class ‘B’ old size for cable protection complete all as specified and directed by Engineer in Charge

Supply laying & testing cable XLPE insulated screened PVC bedded, galvanized steel strip or wire armoured, electric power cables (Heavy duty) with stranded aluminum conductor, 11000 volts grade, of size 4core 25qmm complete all as specified and directed by Engineer in Charge

S&F Submerssible cable 3 core multistandred copper conductor pvc insulated ,water proof,ISI marked of size 4 sqmm for connecting borewell submerssible pump sets complete all as specified and directed by Engineer in Charge

S&F GI pipe light grade of size 40 mm dia as cable protection complete all as specified and directed by Engineer in Charge

Development of trial bore :- M&L for Drilling of trial bore 200 mm dia not exceeding 200 mtr depth below ground level through any kind of soil strata including hard stone / boulder by using suitable drilling method etc complete all as specified and directed by Engineer in Charge

M&L for Development of trial bore by reaming upto 525 mm dia from ground level upto & including a depth of 40 mtrs in steps complete all as specified and directed by Engineer in Charge

M&L for Development of trial bore by reaming upto 450 mm dia exceeding depth of 40 mtrs and upto 150 mtrs complete all as specified and directed by Engineer in Charge.

M&L for Electric logging in pilot bore for precise delineation of granular zones as also the quality of ground water including report interpretation complete all as specified and directed by Engineer in Charge. Note:- Electric logging shall be carried out by any approved Govt Agency.

Supply and lowering 200mm ,UPVC Casing pipe 8 mm thick complete all as specified and directed by Engineer in Charge.

Supply and lowering 150mm ,UPVC Casing pipe 6mm thick complete all as specified and directed by Engineer in Charge.

M&L for packing pea graval 3 to 5 mm of size as per IS of natural shape brought directly from river bed and packing around the casing pipe of MS to entire depth upto ground level complete all as specified and directed by Engineer in Charge.

S&F well cap suitable for 200 mm bore housing pipe made out of 6mm thick steel plate complete all as specified and directed by Engineer in Charge.

M&L for Development of tube well by air compressed of capacity upto 500 PSI till sand/ mud free clean water of portable quality is obtained complete all as specified and directed by Engineer in Charge.

M&L for Development of tube well by over pumping 25% using suitable size diesel engine driven turbine pump after completion of item No 17 complete all as specified and directed by Engineer in Charge.

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 complete all as specified and directed by Engineer in Charge.

M&L for Yield testing for tube well by turbine pump and motor (Diesel engine driven) for discharging capacity upto 5000 Gallon/Hr as per IS requirements complete all as specified and directed by Engineer in Charge. Note :- Yield test of bore well shall be carried out in presence of rep of accepting officer

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 directed by Engineer in Charge.

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

Supply lowering jointing and testing MS black column pipe 3 mtr long heavy duty 50 mm bore, wall thickness 5.4 mm, both end flanged, ISI marked with heavy duty MS flanged not less than 16 mm screwed and welded in side and out side. The flange end making surface shall be made smooth including welding of 04 strip of 5.04 mm thick 25mm wide and 50 mm long covering pipe and flanged, both end flanged having 08 Nos predrilled hole not less then 16 mm including rubber gasket, nut bolts and washer, pipe should be duly painted with anti corrosive paint complete all as specified and directed by Engineer-in-Charge.

S&F and testing sluice vave 50 mm bore both end flanged class PN 1.6, ISI marked conforming to IS 14846-2000 with brass spindle and one number hand wheel including making new flanged joints with 3 mm thick rubber gasket with necessary bolts, nuts, washer etc of suitable size complete all as specified and directed by Engineer in Charge.

S&F and testing Non Return vave 50 mm bore both end flanged ISI marked including making new flanged joints with 3 mm thick rubber gasket with necessary bolts, nuts, washer etc of suitable size complete all as specified and directed by Engineer in Charge.

Supply, intall test and commissioning pump set submersible electric driven 3 phase motor 415 volts, 50 Hz, capable of lifting 2.5 ltr/sec to a head of 150 mtrs of capacity 5.0 HP including all accessories complete. Make : Kirloskar / KSB / Crompton Graves/ Texmo

S&F mild steel work as in joist channel, angles or tee sections plates fixed inndependently with or without connecting plates etc out to required length and shape including two coats of synthetic enamel paint over one coat of red-oxide primer complete all as specified and directed by Engineer in Charge.

Supply Only chain pully block, triple spur gear, 2 ton capacity with 3 mtr lift, manually operated completed with hooks high tensile forged steel confirming to IS : 3815 and load confirming to IS: 6216 and hand chain to IS: 2429 (Part-I) complete all as specified and directed by Engineer in Charge.

S&F steel/GI rope flexible 10 mm dia with GI clamps, nuts, bolts, washer etc for fixing of submersible pump set complete all as specified and directed by Engineer in Charge.

Supply and install LT panel board cubed pedestal mounting outdoor type made out of 3 mm thick CRCA sheet with 40 x 40 x 6mm MS angle/ chanel duly painted with two coats of synthetic enamel powder coated paint over a coat of metal primer suitable to accommodate the following with locking arrangment :- (a) MCB TPN 63 Amps 25 KA - 01 No. (b ) Digital Ammeter of size 96 mm square type, range 0 to 30 Amps - 01 No. (c) Digital Voltmeter of size 96 mm square type, range 0 to 500 volts - 01 No (d) Three phase LED lamp indicator RYB set - 01 Set (e) Star Delta Stater 3 phase 400/440 Volts 50HZ Suitable for 7.5/10HP over Load Realy 7 to 10 Amp with Single phase preventor, Dry run protection,

Supply and laying new steel water tubing galvanized medium grade including all tube fitting such as bends, elbows, tees unions, sockets etc laid complete in trenches of size 50 mm dia complete all as specified and directed by Engineer in Charge.

M&L for Earthing complete with galvanized steel earth plate electrode 60 x 60 x 6.3mm thick, burried directly in ground (earth pit not less than2.25 Metre, deep below ground level) with top edge of the plate not less than 1.5 meter below normal ground level connected to galvanized earth strip 25 X 4 mm by means of bolts, nuts washers checknuts of galvanized or steel all as shown in electrical plate No 5 of SSR Part I connected to earthing test points all as specified or indicated including excavation and earth work, PCC 1:2:4 type 1 in chamber, RCC cover 40mm thick in 1:2:4, type B1 (20mm graded aggregate) with 8mm MS rod at 15cm in both ways hook, funnels with watering pipe, wiremesh and copper lugs, GI protection pipe and testing on completion complete all as specified and directed by Engineer in Charge.

M&L for Earth continuty conductor or main earthing lead fixed to wall on batten or recess or cheses or burried in ground or drawn in to conduit /pipe or fixed to pole or any other indicated situation for loop earthing etc as required for GI Strip of 20x4mm complete all as specified and directed by Engineer in Charge.

M&L for Construction of brick masonry valve chamber of size 600 mm x 600 mm x 600 mm (internal dimension) excavation PCC work, MS cover etc complete all as specified and directed by Engineer in Charge.

S&F Gun-metal, globe or gate valves, 50mm Dia with iron wheel head, screwed both ends for iron pipe and fixed complete all as specified and directed by Engineer in Charge.

S&F Chemical dozing pump high pressure 0-5LPH Capacity adjustable type with accessories including connecting tubing, foundation connecting nuts, injection check valve, and ferrules, with FRP tank and Agitator complete all as specified and directed by Engineer in Charge.

M&L for Testing of soil water from approved Govt lab for avaibility of water steta at different places analysis as per norms of WHO and submission of test reports to the entire satisfaction of Engineer-in-Charge.

Taking up old unserviceable GI Tubing 50 mm dia medium gread from unservicable bore well and taken intp credit to contractor all as specified and directed by Engineer-in -Charge

Taking up old unserviceable submersiable cable any size from unservicable bore well and taken into credit to contractor all as specified and directed by Engineer-in -Charge

VIJAYALAKSHMI ENTERPRISES

Green Ray Technologies

R K ARUMUGAM