REPAIRS / REVAMPING OF 03 NOS. OF BOREWELLS AT AVNL ESTATE

Amount

Earth Work excavation in trenches not exceeding 1.5 m in depth and width and getting out in hard / dense soil.

Returning and refilling with well ramming, leveling with excavated soil and spreading at surplus soil

Demolition of concrete of any description and in any position not otherwise specifically provided for Cement concrete (unreinforced)

M & L for P.C.C 1:2:4, B1 type using 20mm graded aggregated for filling of road cuttings ( Incl elelctrical trenches on crossing of road)

Supply and fixing steel water tubes of 50 mm bore medium grade galvanised with all fitting and fixed complete to walls and ceilings or laid in floors

Supply and fixing of 50 mm dia Gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe or pvc with all accessories fitting required. Make should be ISI Heavy duty.

Supply and fixing steel water tubes of 80 mm bore medium grade galvanised with all fitting and fixed for covering pipes complete to walls and ceilings or laid in floors

Suface excavation in hard dense soil not exceeding 30 cm deep incl all bye works etc complete

Supply and Fixing of Unplasticised PVC pipes of pressure rating 10 kgf/cm2 fixed complete to walls, ceilings or in floors etc., any type of pipe 20mm Bore of pipes in mm Including all fitting

Supply and fixing of 15 mm dia Gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe or pvc with all accessories fitting required. Make should be ISI Heavy duty.

Removing of PVC/G.I pipes from bore wells. Any class of 40 to 50 mm (including all fitting) including disconecting with taking out of submersible pumpsets etc, carefully with out any damage.

Supply and filling of granular space between casting pipe and raw bore with free pebbles of size 6mm to 10mm complete all as specifed and directed.

Testing water samples taken from borewell for potability at king Institute, Guindy, Chennai and submit the report in original as per the instruction of EIC.

Supplying transporting and lowering and fixing in bore well 50 mm inner dia and 60 mm outer dia of PVC threaded submersible pipe each 10 feet length with joint and wire lock system with pressure rating 20kgf/cm² (MAKE- FINOLEX / ASHIRVAD/ TRUBORE or suitabally equivalent make) only

Supply and fixing of 50 mm dia brass non return valves, screwed both ends for HDPE/PVC pipe with all accessories Note : Brass Non Return Valve + Nipple + Clamp + Welding or ( Pipe + MTA/FTA+ Valve ) required fitting included.

Supply and Fixing of NYLON rope of 12 mm dia along the PVC bore pipe and tied with motor base for safety of PVC pipes and tied with pvc tags of 5 mm thick each 1 meter of the bore well pipes .

Supply, install & commissioning of electric motor driven subersible pumpset multistage AC, 3 Phase, 400/440V, 50Hz with high quality Bronze impeller suction housing with perforated strainer with delivery size 50mm dia, complete with standard necessary accessories (Supreme/Finolex/Aashirvad or suitabally equiavalent make) including flat flexible weather proof PVC sheathed over insulated 3 core 4 sq.mm, 1100V grade from Motor to starter pumping capacity 60 to 70 LPM, Head 75 m ,10 Stage pump of 5 HP motor of ( Make : Kirloskar /Texmo / CRI or suitabally equivalent make only) with water level sensor , and the size of the motor should be suitable for 6 inches dia bore.

M & L For Drilling Bore holes 12 inch dia using power rig in any type of soil etc. and cleaning site after drilling.

Supplying transporting and lowering in raw bore wells PVC NON SLOTED Casing pipe of size 8 inch inner dia having thickness of 7.6 to 8.8 mm and lowering with vertical alingment including jointing complete . ( Make of the pipe shall be - Truebore/Finolex/Aashirvad or suitabally equiavalent make) are only acceptable.

Supplying transporting and lowering in raw bore wells PVC VERTICAL SLOTED Casing pipe of size 8 inch inner dia having thickness of 7.6 mm to 8.8 mm and lowering with vertical alingment including jointing complete .( Make of the pipe shall be - Truebore/Finolex/Aashirvad or suitabally equiavalent make)

Supply and Fixing of 3 HP 300 ft Solar Water Pump 1,Solar Panel 8 Nos (405w/24 v-Mono Make:Waaree / Vikram/UTL or suitabally equiavalent make) 2,Solar Water Pump -3 HP, 3 phase, 220v, Bore Well Pump ( Make: 4M/Hawksun/Amrut or suitabally equiavalent make) 3,Pump Controller-3 HP, 3Phase, 220 V, Dry Run Protection,Surge Protection,IP65 Standard ( Make: 4M/Hawksun/Amrut or suitabally equiavalent make) 4,HDPE Hose-1.5 inch 300 ft including All Fittings( Make of the pipe shall be - Supreme/Finolex/Aashirvad or suitabally equiavalent make) 5,Nylon Rope- 320 mts (Any ISI make) 6,Sub Cables -4SQ mm DC and 6 SQ mm Earthing Cables,Earthing Rod,MC 4 Connector,John Cab 3 Core 2.5 SQ mm cable(Any ISI make) 7,Accessories- Pre Galvanized Structure,3.2 KW,SS Lightning Arrester Aluminium Cables,2 Inch Lightning Arresterpost 20 Ft.(Any ISI make) 8, Installation and Transportation including 9, Pipe Earthing for panel board -2 Nos

Supply and Fixing of Unplasticised PVC pipes of pressure rating 10 kgf/cm2 fixed complete to walls, ceilings or in floors etc., any type of pipe 63 mm .( Make of the pipe shall be -truebore/Finolex) Including all fitting

Excavating in trenches not Exceeding 1.5 m wide and not exceeding 1.5 m in depth for laying cable.

Material & labour for sand filling for cushioning on U.G cable

Materal & labour for Bricks; common burnt clay building bricks sub class B designation 75, Old size bricks for protection to U.G cable

Returing, refilling in the excavated trench after laying of power cable including spreading levelling, watering and well ramming in layers not exc 25 cm.

Demolition of cement concrete of any description and in any position not otherwise specifically provided for

Material & labour for cement concrete 1:2:4 Type B1 using 20mm graded aggregate in foundations, filling and mass concrete

Supply & fixing of galvanised steel tubes, medium grade 50mm dia

Supply and installtion of Earthing complete with galvanized steel pipe electrode, 40 mm bore, medium grade 2.5 Mtrs length buried directly and preferably vertically in ground level connected with earth lead of 4 mm dia galvanized iron or steel wire to the earth test point all as specified and indicated including testing on completion.

Supply and fixing of 4mm GI earth continuity conductor of main lead fixed to wall in batten or recess or chases for buried in ground or drawn in conduit/pipe ot fixed to poles or any other indicated situation for loop earthing etc, as required 4 mm dia galvanized iron or steel wire.

Supply & Laying of 4 core,PVC insulated, aromoured, heavy duty electric cable with Aluminium conductor 1100 Volts grade, cross sectional area 25 Sqmm through cable trenches/flooring/ pipes etc. including termination with suitable glands and lugs etc.

Supply, fixing & connecting of the system cable end termination of size 25 sqmm 4 core including with suitable cable gland & lugs.

AMUTHA ENGINEERING AND CONSTRUCTION (BID ID -834697)

Siva Enterprises (BID ID -839636)