REPAIR/MAINT TO WATER SUPPLY INSTALLATIONS PUMPS/MOTORS WITH ALLIED SERVICES AND CLEANING OF OH TANKS/UG SUMPS AT OTHER THAN BASISTHA AREA UNDER GE GUWAHATI

Amount

Material and Labour for Opening man hole cover of filter plant and taking out carefully all old filter media and PVC strainer from filter shell, removing unserviceable materials to a safer distance n.exc 50 m and cleaning the filter bed thoroughly with clean water to remove all dirt, scale, mud etc including strainer, pipe line complete for 5000 GPH capacity filter plant and replace the unseviceable filter media as required complete all as specified and as directed. Note:- New filter media shall be measured and paid separately under subsequent items.

Material and Labour for Opening man hole cover of filter plant and taking out carefully all old filter media and PVC strainer from filter shell, removing unserviceable materials to a safer distance n.exc 50 m and cleaning the filter bed thoroughly with clean water to remove all dirt, scale, mud etc including strainer, pipe line complete for 8000 GPH capacity filter plant and replace the unseviceable filter media as required complete all as specified and as directed. Note:- New filter media shall be measured and paid separately under subsequent items.

Supply and filling new life Manganese Di-Oxide (Mno2) compound of size 1x1/2 inch filled in layers complete all as specified and as directed.

Supply and filling iron removal chemical Anthracite/carbofilt coal for 8000/5000 GPH capacity filter plant complete all as specified and as directed.

Supply and filling gravels of size 20x12mm filled in layers as specified and directed for 5000/8000 GPH capacity filter plant complete all as specified and as directed.

Supply and filling gravels of size 12x6mm filled in layers as specified and directed for 5000/8000 GPH capacity filter plant complete all as specified and as directed

Supply and filling gravels of size 6x3mm filled in layers as specified and directed for 5000/8000 GPH capacity filter plant complete all as specified and as directed

Supply and filling gravels of size 3x1.5mm filled in layers as specified and directed for 5000/8000 GPH capacity filter plant complete all as specified and as directed

Supply and fixing 10-32mesh fine sand filled in layers as specified and directed for 5000/8000 GPH capacity filter plant complete all as specified and as directed

Supply and fixing in repair of butterfly valve of size 80 mm dia incl nut,bolt etc complete all as specified and as directed.

Supply and fixing in repair of butterfly valve of size 100 mm dia incl nut,bolt etc complete all as specified and as directed

Supply and fixing mild steel screw bolts (machine made) with hexagonal or square heads at one end and screwed the other, or screwed end to be fitted with washers and one hexagonal or square nut, length of bolt exc 15cm and n exc 22.5cm long 16 to 20mm dia of shank complete all as specified and as directed.

Supply and fixing in repair gasket 300mm size complete all as specified and directed.

Material and Labour 80 mm bore GI Tubing heavy duty in Trenches/ Floor/Pillar and connection in old or news position including all fitting which required like socket /Union/Tee/Reducer Nipple etc complete required and directed.

Material and Labour 100 mm bore GI Tubing heavy duty in Trenches/ Floor/Pillar and connection in old or news position including all fitting which required like socket /Union/Tee/Reducer Nipple etc complete all as specified and as directed

Excavation in trenches not exceeding 1.50 mtr wide and not exceeding 1.50 mtr deep for taking out/ laying of under ground cable, pole, pipe, stay and getting out in soft soil strata including making good to the disbturbed surfaces such as hardstanding, footpath/ pavments complete all as specified and directed.

Returning filling in including spreading leveling watering and well ramming in layers not exceeding 25cm spread any type of soil complete all as specified and as directed.

Removal of excavated soil to a distance not exc 50 m and depositing where directed at a level not exc 1.5 mtr above the starting point complete all as specified and as directed.

Supply and fixing, F R P solution preparations cum settling tank, capacity 100 ltrs with level gauge, lid, inlet / outlet connection, drain connection and fitted with speed reducer, motor and SS agitator including replacing the old one, complete all as specified and as directed.

Supply and fixing, in repair, chemical dosing (metering) pump, 6 ltrs / hr @ 10 kg back pressure, electromagnetic type with suction & discharge tubing, spring loaded anti siphon valve, foot valve etc complete all as specified and directed.

Supply and fixing, in repair, Cast Iron Alum/ Soda pot (each having 14 Ltr) complete all as specified and as directed.

Supply and fixing, in repair, 6 Sqmm, 3 core, 1100 volts grade, flat cables with copper conductor pvc insulated for submersible pump motors complete all as specified and as directed.

Supplying and laying synthetic Rubber insulated mats 2 mm thick for voltage upto 3.3 kv for electrical purpose as per IS 15652-2006, (superseding IS 5424) suitable for electrical shock safety of sizes 2m x 1m complete all as specified and directed.

Cleaning (inside tank only) of PS Over Head Tank of capacity 9600 Gallons, 15 mtr staging height, using following stages cleaning process including arrangement of necessary T&P, labour and Chemicals etc before starting process of cleaning complete all as specified and as directed:- (a) Mechanized Dewatering (b) Sludge Removal (c) High Pressure Cleaning (d) Vaccum cleaning (e) Antibacterial spray (f) UV radiation. (g) Painting two coats of black bituminous paint on internal surface of Over Head water reservoir after cleaning the tank. Note:- (i) The entire work shall be carried out by well experienced personnel/firms having experience of similar nature of work. (ii) Entire T&P and all Safety measure during the work shall be arranged by the contractor at his own cost. (iii) "Date of cleaning" shall be written over the outer surface at appropriate level to be decided by Engineer-in-charge with synthetic enamel paint of letteres not less than 100mm height and the cost of the same shall be deemed to include in the quoted unit rate of the contractor.

Cleaning (inside tank only) of RCC Over Head Tank of capacity 25000 Gallons, 18 mtr staging height, using following stages cleaning process including arrangement of necessary T&P, labour and Chemicals mechanize etc before starting process of cleaning complete all as specified and as directed:- (a) Mechanized Dewatering (b) Sludge Removal (c) High Pressure Cleaning (d) Vaccum cleaning (e) Antibacterial spray (f) UV radiation. (g) Painting two coats of black bituminous paint on internal surface of Over Head water reservoir after cleaning the tank. Note:- (i) The entire work shall be carried out by well experienced personnel/firms having experience of similar nature of work. (ii) Entire T&P and all Safety measure during the work shall be arranged by the contractor at his own cost. (iii) "Date of cleaning" shall be written over the outer surface at appropriate level to be decided by Engineer-in-charge with synthetic enamel paint of letteres not less than 100mm height and the cost of the same shall be deemed to include in the quoted unit rate of the contractor.

Taking out monoblock type pump (Make-Kirlosker) of 15 HP capicity from its foundation duly disconnecting suction and delivery lines, transporting to authorised civil workshop, dismantalling, opening and sort out defective spares and parts and cleaning, servicing, greasing and replacememt of defective spares including painting of pump with two coats of synthetic enamel paint as per existing colour after and including prepration of old painted surface of pump set and transporting back the to site after repair, refixing, mounting the base to its original foundation, testing and commissioning complete all as specified and as directed. Note:- New spares as required shall be measured and paid separately under items as 'Supply only' here in after.

Supply and fixing casing bearing suitable for centrifugal type monoblock pump of capacity 15HP.

Supply and fixing Impeller suitable for centrifugal type monoblock pump of capacity 15HP.

Supply and fixing Bushing suitable for centrifugal type monoblock pump of capacity 15HP.

Taking out the existing submersible pump set (Make-calama/KSB) of capacity 10 HP duly disconnecing all electrical and mechanical connections complete with column pipe with the help of chain pully block & tripod etc from the max depth of 360 feet, transporting the same to civil authorised workshop and bring back to site after repair and replacement of defective spares for pump, rewinding the motor with super enamelled copper winding wires of suitable gauge and size as per existing, varnishing the re-winded motor and heating up the same in heat chamber to obtain the insulation resistance not less than 0.6 Ohms, make the same in serviceable condition, reassembling the motor and testing on ground including re-installation and relowering the pump set after completion of repair/replacement work complete as directed. Note : New spares as required shall be measured and paid separately as ‘Supply only’ as under:-

Supply and fixing Bushing suitable for 10 HP pump set complete all as specified and as directed.

Supply and fixing coupling for 10 HP pump set complete all as specified and as directed.

Material and labour for Shaft lapping and cutting complete all as specified and as directed.

Chemical and bacteriological testing of water sample collected from Various pump houses of other than basistha area (Borjhar, IWT main, IWT Training, Sadilapur Transit Camp, MC Group, Md Accn Shantipur and Transit camp), The water sample should be collected as a raw water sample and treated water sample. Raw water sample should be collected at the inlet point of IR plant and treated water sample should be collected at the delivery point of IR plant or user end. The water sample have to be sent in Govt Approved laboratary and following parameter should be tested- Iron, Alkalinity, Turbidity, Calcium Hardness, TDS, Sulphate, Chloride, Fluoride, Total Hardness, Residences Chlorine, Nitrate, PH, Arsenic, Manganese, Magnesium. Note- Collection of Water Sample from all locations and testing of these samples is treated as single Job. Note : Test report of water samples shall be submitted alongwith RAR/Final Bill.

Supply and fixing in repair 100 mm bore cast iron flanged & drilled both ends sluice valve, (ISI marked) long body type, conforming to IS 14846-2000; Class PN-1.6 with iron wheel head & brass spindle including all jointing materials and mild steel nuts, bolts, washers, rubber / fibre board gaskets etc and testing complete all as specified and as directed.

Supply and fixing in repair 80 mm bore cast iron flanged & drilled both ends sluice valve, (ISI marked) long body type, conforming to IS 14846-2000; Class PN-1.6 with iron wheel head & brass spindle including all jointing materials and mild steel nuts, bolts, washers, rubber / fibre board gaskets etc and testing complete all as specified and as directed.

Supply and fixing in repair 80 mm bore cast iron flanged & drilled both ends Non return valve, (ISI marked) long body type, conforming to IS 14846-2000; Class PN-1.6 with iron wheel head & brass spindle including all jointing materials and mild steel nuts, bolts, washers, rubber / fibre board gaskets etc and testing complete all as specified and as directed.

Material and labour for construction of brick masonry valve pit of size 120x120x120cm (internal dimension) one brick thick wall built in CM (1:4) on 100mm thick PCC (1:4:8) type D2 (using 40mm graded stone aggregate) as in foundation, and 15mm thick rendering in cement mortar (1:4) both externally and internally, external plaster shall be up to 25cm below GL, providing valve pit cover made of 1.60mm thick MS sheet/plate, including provision of hinges, handle and locking arrangement including 40X40X3mm angle iron frame fixed on top of valve pit by means of MS hold fast 40x5mm and 150mm long, embedded in PCC (1:2:4) type B-1 (using 20mm graded stone aggregate) and wall of sub class 'B' bricks, including two coats of anti-corrosive paint over a coat of red oxide zinc chrome primer and necessary earth work in soft/loose soil complete all as specified and as directed.

S. R. TRADING (BID ID -3081629)

Goswami Traders (BID ID -3081740)

M/s JK Jangid and Company (BID ID -3081840)

MAC ENGINEERS (BID ID -3081064)

SHANKAR ENTERPRISE (BID ID -3080145)

TONMOY DAS (BID ID -3080775)

M/S K NATH AND CO. (BID ID -3081218)