PROVISION OF BOREWELLS AT AIRFIELD LAND AND H-1 PLOT AT ICGAS RATNAGIRI

Amount

Borewell drilling 150 mm to 200 mm dia by DTH machine including transporting of machine at worksite complete all as specified and directed.

Providing 180 mm dia PVC Casing Pipe 6kg/cm2 and fixing borecap after completetion of borewell complete all as specified and directed.

Lowering & Laying of 180 mm dia PVC Casing Pipe 6kg/cm2 upto hardrock including Grouting for depth upto 12m casing complete all as specified and directed.

Lowering & laying 0f 180 mm dia PVC Casing Pipe 6kg/cm2 upto hardrock including Grouting for depth above 12m casing complete all as specified and directed.

Yield test for the bore well by continuously pumping for 16 hours to determine safe pumping yield complete all as specified and directed.

Providing and placing 180 mm diaPVC Cap complete all as specified and directed.

Supplying and erecting submersible pumpset of 1.125 KW/1.5 HP with 230 V, 50 c/s AC supply suitable for 100 mm dia. Borewell suitable for 06 to 48 LPM discharge at 72 to 130 m head discharge & delivery pipe of size- 32 mm diameter with a necessary H type clamps complete all as specified and directed.

Providing and supplying nylon rope 10 mm dia.complete all as specified and directed.

Providing & fitting & stainless steel bottom nipple (for HDPE pipe 32 mm dia.) complete all as specified and directed.

Supply and fixing flat flexible submersible cable with copper conductor, PVC insulated and PVC sheathed 3 core flat of size 2.5 sqmm with multi stranded copper conductor cable complete all as specified and directed.

Supply and fixing Gate valve of size 50 mm dia, connecting & testing both ends flanged and drilled cast iron body class PN-1.6 confirming to IS- 14846/2000 complete with gun metal spindle including necessary nut bolt etc as specified and directed.

Supplying & Fixing non return valve 50 mm dia in position made of gun metal complete all as specified and directed.

Supply and fix, testing and commissioning of chlorine dozing system: a) DOSING PUMP : Consisting of Reciprocating pump, chemical feeder for injecting Calcium Hypochlorite, employing motor-driven reciprocating chemical pump having output of 2 U.S. GPD to 40 U.S. GPD and adjustable high pressure of up to 100PSI. High pressure Single Head Gear Motored Adjustable dosing pump of following specifications: Adjustable High Pressure: 0 to 100PSI, Power: 230 V 50 HZ, RPM: 44, Horsepower: 1/30 fractional Output: 2 U.S. GPD to 40 U.S. GPD. Pump shall include the following accessories: Lead Tubing, Connecting Nuts, Injection Check Valve, Clay Weight, Ferrules, Liquid end of dosing pump include accessories must be non-metalic. b) Dosing System : Consisting of Non-metallic solution tank of 100 liters capacity with motor driven agitator to maintain uniform suspension throughout the tank. Electrically operated Chlorine Dosing tank consisting of Dosing tank of 100 liters of PE/FRP MOC with PE/FRP lid and Level gauge along with Single Phase Electric Motor and Agitator with shaft and blade in Plastic-mounted on tank. Lid must have port hole for pouring Calcium Hypochlorite and water when necessary. Lid must have provision for mounting dosing pump on the lid/wall.

Excavation in trenches n.exc 1.5mtr wide and not exc 1.5mtr depth and getting out in soft/disegrated rock for laying of cables ,foundation e.t.c complete all as directed.

Returning and filling in of excavated soil including spreading,levelling,watering and well ramming in layers not exceeding 25 cm each in soft/disintegrated rock complete all as specified and directed.

Removal of surplus soil not exceeding 50 mtr and depositing where directed at a level not exceeding 1.5 mtr above the starting point complete all as specified and directed.

M & L for good quality dry sand cushioning to under ground electric cable on layer of 8 cm thick before laying the cable and second layer of 15 cm thick after laying the cable all as specified in clause 19.75 of MES Schedule part-I (2009), complete all as specified and directed. Note : Sand shall be fined sand as specifed and punned thickness shall be measured and paid.

Supplying & laying of unreinforced precast concrete cover of class LV type 1 flat size 250 mm x 150 mm x 40 mm for protection for cable complete all as specified and as directed.

Supply, laying & testing cable XLPE insulated, screened,PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 volts grade with stranded aluminium conductor of size 6 sqmm 4 core complete all specified and directed.

Supply & Fix 50 mm bore Galvanized Steel tube including GI socket 50mm dia 100mm long, medium grade with all fittings, fixing on wall / laid in trenches complete all as specified and as directed.

Trial Bore: The ground before boring will be visited by state govt. and Zilla Parishad Ratnagiri (Groundwater Survey and Development Authoirity) and trial bore will be done as per their advice, complete all as specified and directed. The liaison with state dept. and their visiting charges will be borne by their contractor. Note: The MES will not be held responsible for the same.

Material and labour earthing with steel earth plate electrode of size 60x60cmx6mm thick buried directly in ground to a depth not less than 2.25 mtr deep below normal ground level with top edge of the earth plate not less than 1.5 mtr deep below normal ground level connected to galvanized iron strip of size 32x6 mm as earthing lead by means of nuts, bolts and washers of steel after welding of GI strip to earth electrode to the full length of earth plate, GI medium grade pipe 40 mm bore protection pipe upto test point, 20mm dia GI light grade watering pipe with funnel and wire mesh, RCC pit cover of size 300x300x40mm reinforced with XPM having weight not less than 4Kg/sqmm including 6mm thick MS bar handle made to shape, PCC pit with 1:3:6 type C1 with angle iron frame made of angle iron of size 40x40x4mm, adequate qty of charcoal dust and salt layers all around the earth plate, excavation , earth work in any type of soil, removal of excavated soil and returning filling in all as required at site complete all as specified in plate No 3 of SSR Part-I and all as specified or indicated including testing on completion. NOTE :-Rates inclusive of necessary excavation in any type of soil, earth work, PCC pit, RCC cover, funnel with watering pipe, GI earth strip upto 7.5 m long for connecting to test point etc. all as required at site for complete earthing).

Supply and fixing MCB TPN 16 to 32A 'C' Curve 10 KA suitable for 415 V complete all as specified and directed.

Development of tube well with compressed air and after with 25% extra capacity pump for pumping muddy water for 16 hours complete all as specified and directed.

Supply, install, test and commissioning LT Panel board , TPN 415 Volts, 50 Hz, 100 Amps capacity bus bar as per IP-54 , feeder pillar box out door cubical type floor mounted factory made double door dust and vermin proof fabricated out of CRCA sheet not less than 3.15 mm thick fixed on angle iron frame made out of 40x40x6mm duly powder coated, front openable double door hinged with locking arrangements complete with and comprising the following including necessary PCC platform of suitable size complete all as specified and directed:- a) Intelligent meter with necessary CT's =01 Nos b) Indicator lamp with toggle switch- set of 3 c) MCB TPN 16 A, 10 KA Thermal release (Incommer) = 1No d) Supply and fixing control panel with, main switch starter, volt meter, ammeter, indicating lamp, condenders etc. complete with Dry Run protection and automatic water level controller unit inside the feeder panel

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