SPECIAL REPAIRS TO BOREWELLS AND PROVISION OF WATER SUPPLY AT CERTAIN WATER TOWERS AT AFS HAKIMPET UNDER GE (AF) HAKIMPET

Amount

Boring/drilling bore well of required dia for casing/ strainer pipe, by suitable method prescribed in IS: 2800 (part I), including collecting samples from different strata, preparing and submitting strata chart/ bore log, including hire & running charges of all equipments, tools, plants & machineries required for the job, all complete as per direction of Engineer-in-charge Note :- (i) The pilot bore wells shall be drilled on tentative location as approved by GE. Tentative location which shall be obtained from Geographical department of GWS&SB by the contractor. (ii) If the yield is insufficient as considered by GE then pilot bore shall be drilled at new place as directed by GE. Payment shall however be made only for drilling as per actual. (iii) Rig, tolls and plants etc required for completion of work and their cartage. (iv) Collection of soil Strata at every 10m depth or chane in strata met with during the bore shall be plotted against the depth on a tracing paper in the form of strata chart and blue print in sextuplicate shall be submitted to deptt for record. (v) Actual depth of final bore shall be decided based on the result of electro logging and TDS report. (vi) Soil/strata testing report shall be done through Geo hydrology department for water aquifier details of the location if required and submitted to the Engr in charge.

(a) Any type of soil / strata (165 mm dia), upto 100 feet depth below ground level.

(b) Any type of soil / strata (165 mm dia), Depth from 100 feet upto 200 feet

(c) Any type of soil / strata (165 mm dia), Depth from 200 feet upto 300 feet

(d) Any type of soil / strata (165 mm dia), Depth from 300 feet upto 400 feet

(e) Any type of soil / strata (165 mm dia), Depth from 400 feet upto 500 feet

Borewell casing (UPVC): Supplying, assembling, lowering and fixing in vertical position in bore well, unplasticized PVC medium well casing (CM) pipe of required dia, conforming to IS: 12818, including required hire and labour charges, fittings & accessories etc. all complete, for all depths, as per direction of Engineer -in-charge. i) 150 mm nominal dia (minimum wall thickness 7.5mm)

Supply and fixing of HDPE (High density polythene) pipe, PE-63 grade, ISI marked, as per IS 4984, PN 10, size 3 inch, Outer dia 50 mm, 10 Kg/cm2, suitable for borewells including providing SS nipples (03 Nos) of suitable size flanged type for borewell complete all as specified and directed.

Supply and fixing of HDPE (High density polythene) pipe, PE-63 grade, ISI marked, as per IS 4984, PN 10, size 3 inch, Outer dia 75 mm, 10 Kg/cm2, suitable for borewells including providing SS nipples (03 Nos) of suitable size flanged type for borewell complete all as specified and directed.

Supply and fixing of multi stage SS submersible pump, with S.S Bowl, 7.5 HP,suitable for operation on 3 phase 415 volts for 150 mm borewell and for outlet pipe of 50 mm dia by means of S.S flange and connecting SS Nipple discharge range 1250 to 1000 LPM including disc suction strainer cable guard etc. including lowering into borewell complete all as specified and directed.

Supply and fixing of multi stage SS submersible pump, with S.S Bowl, 12.5 HP, suitable for operation on 3 phase 415 volts for 150 mm borewell and for outlet pipe of 75 mm dia by means of S.S flange and connecting SS Nipple discharge range 1250 to 1000 LPM including disc suction strainer cable guard etc. including lowering into borewell complete all as specified and directed.

Supply, fixing and commissioning of LT Panel outdoor type fabricated with 3.15 mm CRCA sheet with anti corrosion cubical enclosure suitable size 415 volts, AC 50 Hz fabricated of CRCA sheet 3 mm thick machine pressed and angle iron frame 50mm x 50mmx 6mm grouted in PCC 1:2:4 type B1 (20mm grade stone aggregated) powder coated inside and outside complete connection from incoming and outgoing electric cable with suitable size thimbles / lugs cable gland with open able shutters on both side complete all as specified and directed for following specifications :- (a) Automatic star delta starter for 7.5 HP capacity three phase submersible pump (b) Motor protection circuit breaker of capacity 7.5 HP (c) Digital ammter and Voltmeter (d) LED type indicating lamps

Supply, fixing and commissioning of LT Panel outdoor type fabricated with 3.15 mm CRCA sheet with anti corrosion cubical enclosure suitable size 415 volts, AC 50 Hz fabricated of CRCA sheet 3 mm thick machine pressed and angle iron frame 50mm x 50mmx 6mm grouted in PCC 1:2:4 type B1 (20mm grade stone aggregated) powder coated inside and outside complete connection from incoming and outgoing electric cable with suitable size thimbles / lugs cable gland with open able shutters on both side complete all as specified and directed for following specifications :- (a) Automatic star delta starter for 20 HP capacity three phase submersible pump (b) Motor protection circuit breaker of capacity 20 HP (c) Digital ammter and Voltmeter (d) LED type indicating lamps

Supply and fixing of flat Three core PVC insulated and PVC sheathed industrail cable for submersible pump of nominal cross sectional area of 6 Sqmm copper conductor complete all as specified and directed.

Supply and fixing of flat Three core PVC insulated and PVC sheathed industrail cable for submersible pump of nominal cross sectional area of 10 Sqmm copper conductor complete all as specified and directed.

Supply and fix in replacement XLPE insulated armoured heavy duty electric cable with aluminium conductor, 1100 volts grade of cross sectional area 16 sqmm 4 core complete all as specified and directed.

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m depth and getting in hard/dense soil for laying of cables/ for erection of poles/ for stay assembly etc complete all as specified and directed by Engineer-in-Charge.

Supply and spread clean dry river sand in trenches for cushioning of cable complete all as specified and directed by Engineer-in-Charge. (Note: Punned down thickness only shall be measured for the purpose of payment)

Supply and lay un-reinforced precast concrete cable cover , class LV , Type I flat size 250 x 150 x 40 mm laid dry in treches over under ground cables complete all as specified and directed

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

Removing surplus excavated material to a distance not exc 50m and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified and directed by Engineer-in-Charge.

M&L for earthing complete with galvanized steel earth plate electrode 600mm X 600mm X 6mm buried directly in ground vertically to a depth not less than 2.25 metre below normal ground level (with top edge of earth plate not less than 1.5 metre below ground level) connected to galvanized iron strip of dia 32 x 6 mm as earthing lead by means of galvanized bolts, nuts and washers all as shown in electrical plate No 3 of MES Schedule Part-I (2009) with connected to earth test point & to main switch board with & including adequate quantity of charcoal dust and common salt alround earth plate & 40 mm dia GI pipe medium grade for earth lead protection pipe for suitable length and GI pipe 20 mm dia medium grade for watering pipe with funnel & wire mesh including necessary earth work and PCC (1: 3 : 6) type C-1 for earth pit and 40 mm thick precast RCC cover in 1 : 2 : 4 type B-1 with 3 Nos 8 mm dia TMT bars both ways with 12mm dia round bar handle complete all as specified & directed. NOTE: Earth lead wire and its protection pipe upto and including 7.5 mtr only from the top of earth electrode are included under this item and additional earth GI earth wire/protection pipe etc. if any required at site shall be measured and paid for separately under appropriate item of Schedule `A’ NOTE - The unit rate shall also include for earth work in any type of soil, PCC (1:3:6) type C1 chamber, RCC 1:2:4 type B1 cover 50mm thick reinforced with 8mm dia TMT bars @ 150mm C/C both ways, funnel with watering pipe

Materail and labour for geological survey to findout the water bearing levels, pressure,category and quality of groundwater and intensity of water flow thorugh pores for atleast three points complete all as specified and directed.

Development of tube well in accordance with IS : 2800 (part I) and IS: 11189, to establish maximum rate of usable water yield without sand content (beyond permissible limit), with required capacity air compressor, running the compressor for required time till well is fully developed, measuring yield of well by “V” notch method or any other approved method, measuring static level & draw down etc. by step draw down method, collecting water samples & getting tested in approved laboratory, i/c disinfection of tubewell, all complete, including hire & labour charges of air compressor, tools & accessories etc., all as per requirement and direction of Engineer-in-charge.

Supply and fixing for Galvanized Iron water tubing " Medium Grade" 40 mm with all fittings such as bends, tees, reducers etc laid in trenches for following sizes Complete all as specified and directed

All as per item no 20 here in before but size of pipe 25 mm dia

All as per item no 20 here in before but size of pipe 80 mm dia

Providing and fixing suitable size threaded mild steel cap or spot welded plate to the top of bore well housing/ casing pipe, removable as per requirement, for borewell of 150 mm complete all as specified and directed by Engr-in-charge.

Providing and fixing M.S. clamp of required dia made of 100 x10 mm flat to the top of casing/ housing pipe of tubewell as per IS: 2800 (part I), including necessary bolts and nuts of required size of 150 mm complete all as specified and directed by Engr-in-charge.

Providing and fixing Bail plug/ Bottom plug of required dia to the bottom of pipe assembly of tubewell as per IS:2800 (part I) of size 150 mm complete all as specified and directed by Engr-in-charge.

M&L for Electro logging test of the pilot bore hole by using logger equipment including all necessary arrangements for chemical analysis, bactriological test of sample of yield obtained from pilot bore to ascertain potability of water all as specified and directed. Note. The contractor shall submit electrologging result with recommended bore assembly details n duplicate for approval of GE.

M&L for strata sample (at every 10 meters depth) one set in suitable box pattern, earth sample strata should be produced as per IS and submitted to the department. The box shall be 2nd class hard wood with suitable locking arrangment etc complete all as specified and directed.

Supply and fixing of PVC air release valve 25 mm dia bore with required length of PVC pipes, clamps etc complete all as specified and directed.

Supply and fixing, connecting and testing of Non return valve flanged type (ASA 150 & F) complete as locking device with bolts, nuts, rubber gaskets etc including jointing materials of size 40 mm OD, complete all as specified and directed.

Supply and fixing, connecting and testing of Non return valve flanged type (ASA 150 & F) complete as locking device with bolts, nuts, rubber gaskets etc including jointing materials of size 80 mm OD, complete all as specified and directed.

M&L for sanitary sealing of tube well with PCC (1:2:4) type B1 using 20mm graded stone aggregate upto a depth of 1 mtr from ground level and 0.45 mtr above grond level (Square type of ext dimensions 600 mm x 600 mm) around tube well casing, plat form of ext dimensions 1200 x 1200 x 150 mm at ground level with PCC 1:4:8 type D2 foundation using 40mm stone aggregate including necessary form work and supply and placing of 80 mm bore light grade, GI pipe, at two places each 1.5 m in length for pouring of peagravel (in future) and capping with screwed cap at top side end etc complete all as specified and directed.

Supply, fixing and commissioning of LT Panel outdoor type fabricated with 3.15 mm CRCA sheet with anti corrosion cubical enclosure suitable size 415 volts, AC 50 Hz fabricated of CRCA sheet 3 mm thick machine pressed and angle iron frame 50mm x 50mmx 6mm grouted in PCC 1:2:4 type B1 (20mm grade stone aggregated) powder coated inside and outside complete connection from incoming and outgoing electric cable with suitable size thimbles / lugs cable gland with open able shutters on both side complete all as specified and directed for following specifications :- (a) Automatic star delta starter for 5 HP capacity three phase submersible pump (b) Motor protection circuit breaker of capacity 5 HP (c) Digital ammter and Voltmeter (d) LED type indicating lamps

Rahul Enterprises (BID ID -3078809)