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

Amount

Material & Labour for Opening man hole cover of filter plant and taking out care fully 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 & Labour for Opening man hole cover of filter plant and taking out care fully 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 as specified and directed.

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

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

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

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

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

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

Supply and fixing in repair, 80mm bore, cast iron butter fly valve complete all as specified and directed

Supply and fixing in repair, 100mm bore, cast iron butter fly valve complete all as specified and directed

S&F mild steel screw bolts (machine made) with hexagonal or square heads at one end and screwed the other, or screwed both ends, each 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 neck complete all as specified & as directed.

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

M&L 80mm bore GI Tubing heavy duty in Trenches/Floor/Pillar and connection in old or new position including all fittings ike socket/Union/Tee/Reducers Nipple etc complete all as specified and directed

M&L 100mm bore GI Tubing heavy duty in Trenches/Floor/Pillar and connection in old or new position including all fittings like socket/Union/Tee/Reducers Nipple etc complete all as specified and 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 disturbed surfaces such as hardstanding, footpath/pavements complete all as specified and directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cm. in soft/loose soil, complete all as specified and as directed.

Removing excavated material, soils, n exc. 50m and depositing where directed at a level n exc. 1.5m above the starting point complete all as specified and directed.

S&F FRP construction, 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 unserviceable one, complete all as specified and directed.

S&F in repair, chemical dosing (metering) pump, 6ltrs/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.

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

S&F in repair, 6 Sqmm, 3 core, 1100 volts grade, flat cables with copper conductor insulated and sheathed with XLPE for submersible pump motors complete all as specified and directed.

Supply and laying in replacement, Syntheic Rubber insulated Mat of size 2mtrs x 1mtrs, 2mm thick suitable for voltage upto 3.3KV for electrical purpose as per IS 15652-2006(Superseding IS 5424) for electrical shock safety complete all as specified and directed.

Material & Labour for 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 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 letters not less than 100mm height and the cost of the same shall be deemed to include in the quoted unit rate of the contractor.

Material & Labour for 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, dismantaling, opening and sort out defective spares and parts and cleaning, servicing, greasing and replacememt of deffective spares including painting of pump with two coats of synthetic anamel 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 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 15 HP

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-Calma/KSB) of capacity 10 HP duly disconnecting 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 reinstallation 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

Supply and fixing coupling for 10 HP pump set

Material & Labour for Shaft lapping and cutting complete all as directed

Chemical and bacteriological testing of water sample collected from various pump houses of other than basistha area (at 07 locations : X1, X2, X3, X4, X5, X6, X7). The water sample should be collected as a raw water sample and treated water sample. Raw water sample should be collected at the intlet 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 laboratery and following parameter should be tested- Iron, Alkalinity, Turbidity, Calcium Hardness, TDS, Sulphate, Chloride, Fluoride, Total Hardnesss, Residences chlorine, Nitrate, PH, Arsenic, Manganese, Magnesium. Note- 1. Collection of water sample from all seven location (at 07 locations : X1, X2, X3, X4, X5, X6, X7) and testing of all seven samples shall be treated as a single job. 2. Test certificate shall be submitted mandatorily before claiming payment.

Material & Labour painting of CI/DI/GI pipe line of any size in various MES pump house located in Basistha & Narangi area complete with two coats of synthetic enamel paint after preparing surfaces and wiring of inlet / out let direction, area of feeding etc all as directed.

S. R. TRADING