REPAIR MAINT OF WATER TREATMENT PLANT AT MAIN WATER POINT ZONE I II PUMP HOUSE UNDER GE LEKHAPANI

Amount

Removal of catalytic media complete from mild steel shell (oxidation chamber) of iron removal plant having capacity 10000 GPH/5000 GPH and disposal of unseviceable materials to a distance outside the pump house complete all as directed.

Removal of filter media complete from mild steel shell of iron removal plant up to 10000 GPH/5000 GPH of dimension up to 1.5 metre dia and 3 metre height and disposal of unseviceable materials to a distance not exc 50 meter complete all as specified and directed.

Removal of filter media complete from mild steel shell pressure filter of dimension up to 2.50 metre diameter and 7.2mtr length of capacity 30000 GPH and disposal of unseviceable materials to a distance not exc 50 meter complete all as specified and directed.

Scraping, de-scaling cleaning external surfaces of mild steel shell and appling two coats of red oxide /zinc chrome primer with one coat of approved anticorrosive paint over a coat of red oxide /zinc chrome primer with necessary prepration of surfaces on external surface of iron removal plants and pressure filter including pipeline. complete all as specified & directed.

Scraping, de-scaling cleaning internal surfaces of mild steel shell and appling two coats of red oxide /zinc chrome primer with one coat of approved black bituminous paint over a coat of red oxide /zinc chrome primer of drinking water grade paints with necessary prepration of surfaces on internal surface of iron removal plant and pressure filter complete all as specified & directed.

Supply and incorporation of MNO2 of size 1/8'' x 1/10'' as filter media of iron removal plant and pressure filter in ,complete all as specified & directed.

Supply and incorporation of GRAVEL of size 1 1/4'' x 1 1/2'' as filter media of iron removal plant complete all as filter media of iron removal plant and pressure filter ,complete all as specified & directed.

Supply and incorporation of GRAVEL of size 1/2'' x 1'' as filter media of iron removal plant complete all as filter media of iron removal plant and pressure filter ,complete all as specified & directed.

Supply and incorporation of GRAVEL of size 1/4'' x 1/2'' as filter media of iron removal plant and pressure filter complete all as filter media of iron removal plant ,complete all as specified & directed.

Supply & incorporation of SAND of size 1/6" x 1/8'' mesh as filter media of iron removal plant and pressure filter complete all as filter media of iron removal plant ,complete all as specified & directed.

Taking out PVC strainers double nut type obtained from iron removal plant /pressure filter and setting aside and cleaning the serviceable strainers for re-laying/ re-fixing or removal of unserviceable strainers from site of work complete all as specified & directed.

Relaying/Refixing of old serviceable PVC strainers double nut type in existing iron removal plant /pressure filter complete all as specified & directed.

Supply & fixing new PVC strainers double nut type as per sample provided for iron removal plant /pressure filter complete all as specified & directed.

Material & Labour for cleaning & washing of JACK WELL of dia 4.60 metre and depth 10 meter by making preparatory arrangement and taking out deposited sludge, soils etc from the bottom including cleaning inside walls with steel wire brush, gunny bags, etc and washing/ cleaning and removing sludge, soil, etc., to a distance not exceeding 50 meter from the pump house campus and deposited where directed complete including writing the words "Date Cleaned on" on the Front/Road side face all as specified and as directed.

Material & Labour for cleaning/washing sedimentation tank of capacity 25000 Gallons by making preparatory arrangement and taking out deposited sludge, soil etc., from the bottom including cleaning inside walls with steel wire brush, gunny bags, etc and washing/cleaning and removing sludge, soils etc to a distance not exceeding 50 metre from the pump house campus area, and deposited where directed complete including writting the words "Date Cleaned on" on the Front/Road side face complete all as specified and as directed.

Material & Labour for cleaning/washing lamila clarifer of tank capacity 20000 litres and cleaning of the steel plates of the clarifier by making preparatory arrangement and taking out deposited sludge, soil etc., from the bottom including cleaning inside walls with steel wire brush, gunny bags, etc and washing/cleaning and removing sludge, soils etc to a distance not exceeding 50 metre from the pump house campus area, and deposited where directed complete including writting the words "Date Cleaned on" on the Front/Road side faceand painting them with two coats of primer of zinc oxide and one coat of black bituminous paint for the inner surface of the tank and clarifer plates complete all as specified and as directed.

Material & Labour for cleaning/washing of Ground level storage sump of 20000 gallons capacity after complete pumping out of water from the static tank (Pumpset is own arrangement of the contractor) and removing all dirts/sludge by scraping with steel wire brush/ gunny bags cleaning/ washing thoroughly floor and inner walls with bleaching powder solution and removing sludge/soils etc., to a distance not exceeding 50 metre from pump house campus, including writting the words "Date Cleaned on" on the Front/Road side face complete all as specified and as directed.

Material & Labour for cleaning/washing of Ground level storage sump of 50000 gallons capacity after complete pumping out of water from the static tank (Pumpset is own arrangement of the contractor) and removing all dirts/sludge by scraping with steel wire brush/ gunny bags cleaning/ washing thoroughly floor and inner walls with bleaching powder solution and removing sludge/soils etc., to a distance not exceeding 50 metre from pump house campus, including writting the words "Date Cleaned on" on the Front/Road side face complete all as specified and as directed.

Supply, install, jointing & testing CI body sluice valve 150mm bore, class PN-1.6, ISI marked (as per IS-14846 of 2000) heavy duty with flanged ends with high tensile stainless steel spindle, iron hand wheel and fixing with nuts, bolts, washers and rubber gasketsheet for packing including taking out existing us sluice valve fixed at any position all as specified and directed by Engr-in-Charge.

All as per item no. 19 above, but for 100 mm Sluice valve.

All as per item no. 19 above, but for 80 mm Sluice valve.

Supply, install, jointing & testing Non Returning Valve 100 mm bore fixing with nuts, bolts, washers and rubber gasketsheet for packing including taking out existing us Non Returning valve fixed at any position all as specified and directed by Engr-in-Charge.

All as per item no. 22 above, but for 80 mm Non return valve.

Supply, install, jointing & testing cast iron butterfly Valve 100mm bore fixing with nuts, bolts, washers and rubber gasketsheet for packing including taking out existing us cast iron butterfly valve fixed at any position all as specified and directed by Engr-in-Charge.

All as per item no. 24 above, but for 80 mm Butterfly valve.

M & L brick masonry with brick valve chamber of internal size 60 cm x 60 cm x 60 cm with 23 cm thick wall in CM 1:6 including excavation, earth work in any strata & PCC 1:4:8 foundation type D-2, 75 mm thick including 20 mm thick PCC 1:2:4 type B1 in & plastering the internal surface with 10 mm thick cement mortar 1:4 providing 3.15 mm MS sheet chamber cover double opening arrangement center lock system with40x40x6mm angle iron frame duly painted with two coat of black bituminous paint over one coat of red oxide primer complete including dismantling the existing unserviceable valve pit all as specifeid and as directed.

All as per serial item No 26 here-in-above but brick valve chamber of internal size 90 cm x 90 cm x 80 cm.

All as per serial item No 26 here-in-above but brick valve chamber of internal size 120 cm x 120 cm x 100 cm.

supply and lay MS pipe heavy grade with all fittings laid in floor or fixed to the walls or celling of size 80 mm bore including taking down of old u/s pipe from any position all as specified and directed

supply and lay MS pipe heavy grade with all fittings laid in floor or fixed to the walls or celling of size 100 mm bore including taking down of old u/s pipe from any position all as specified and directed

supply & fix 80 mm cast iron double side flanged venturi conduict and taking down old u/s venturi all as specified and directed

Material and labour for taking out old unserviceable burnt out Horizontal split casing electric motor with pump from the foundation of casing pump capacity 40 HP , 440 Volts, 50 Hz by opening/disconnecting all mechanical and electrical connections and transporting to nearest work shop and rewinding the same by using approved make super enamelled insulation copper wire of suitable insulation class of approriate size after pulling out burnt out copper wires from the slots of startor including replacement of minor accessories like mica paper, sleeves, glass fibre, bamboo pieces etc. including varnishing/heating at heat chamber suitably and opening the casing pump assembly for replacement of unserviceable parts, servicing by grease , maintenance and reassembling all as per existing complete and taking back the whole pump sets to its original location and fixed or placed suitably including making the electrical and pipe connections including testing to get satisfactory result complete all as specified and as directed. Note: (i) Parts if required for pump shall be measured and paid separately here-in-after under another item as 'supply only'.(ii) Work for rethreading/grinding/metal surfacing and fabrication works to pump or rotor shaft shall be measured & paid separately under separate items here-in-after.

Material and labour for opening or pulling the worn out rotor shaft of electric motor/pump Horizontal split type of capacity 40 HP from the pump set by removing all connected nuts, bolts, bearing covers, cooling fan and bearing etc. and same is brought to nearby metalling shop for remetalling of surface/re-threading/grinding and fabrication job on shaft and servicing of casing pump by providing gland packing and grease of approved grade suitably and re-fitting properly to their original location as per direction of Engr-in-charge complete all as specifed and directed. Note:- Spare parts shall be measured and paid separately under relevant items.

Supply only single metal impeller for 40 HP Horizontal split casing pump set as per existing complete all as specified and directed.

Supply only ball bearing of 6308 including taking out/dismantling old unserviceable one at pump house complete all as specified and directed.

Supply only ball bearing of 6307 including taking out/dismantling old unserviceable one at pump house complete all as specified and directed.

M&L angle iron/channel from base of 40/20/15 HP motor system including nuts, bolts, washers, welding, bending cold or hot,drilling holes for bolts in any shape or size as indicated or directed by Engr-in-Charge and inclusive of one red oxide metal primer coat,one under coat and one finishing coat of approved quality aluminium paint.

Rewinding of sludge recycling pump flow 2m3/hr head 20M WC type self priming complete all as specified and sirected by engr-in-charge.

M & L for providing gear oil suitable for lamella clarifier dozing system complete all as specified and sirected by engr-in-charge.

Collecting water sample in clean bottle from location as directed for testing of physical test, chemical test, as per IS-10500-1991 from NEIST JORHAT or any government recognized institute and submitting test report complete. (Note : Test will be conducted at the interval of 3 month)

Demolition of brick work or stone/ boulder masonry, built in cement mortar including all quoins, arches, pillars etc. but excluding ashlar facings, dressed stone work & precast concrete articles complete all as specified & directed.

M & L for brick work with subclass “B” Old size bricks, straight or curved on plan,exceeding 6 m mean radius, built in Cement Mortar 1:6 complete all as specified and directed.

M&L for cement concrete 1:4:8, Type D-2 using 40mm nominal size graded crushed stone aggregate 75mm thick in sub base for laying tiles, pavings etc all as specified and as directed

Supply & Fixing of fully automatic star delta starter of make L&T type MN/ML suitable for 15/20 HP motor , 440 volt, 3 Ph Elect Motor with Single Phase Protection and motor protection relay feature conforming to IS -13947 after taking down old unserviceable one and fixed to the same location by making electrical connection properly complete all as specified and as directed.

Supply & Fixing of fully automatic star delta starter in sheet metal enclosure of make L&T type MN / ML suitable for 40 HP motor , 440 volt, 3 Ph Elect Motor with Single Phase Protection and motor protection relay feature conforming to IS -13947 after taking down old unserviceable one and fixed to the same location by making electrical connection properly complete all as specified and as directed by Engr-in-Charge.

Supplying and laying of CPVC pipes of outer dia 16mm & Plain CPVC fittings including taking down old unserviceable complete all as specified.

Supplying and laying of UPVC pipes (SCH-80) of outer dia 100mm for fitting in motor inlet complete all as specified.

Supply & Fixing Gun metal, gate valves, with iron wheel head, suitable for 15mm bore dia of pipes, Screwed both ends for iron pipe or for union including taking out old one complete all as specified and as directed.

All as per item No 48 here in before but size of valve suitable for 20 mm bore.

All as per item No 48 here in before but size of valve suitable for 25 mm bore.

All as per item No 48 here in before but size of valve suitable for 40 mm bore.

All as per item No 48 here in before but size of valve suitable for 50 mm bore.

Taking out from trenches or taking down from wall GI steel tubing and connections, 15 mm bore, setting aside the unserviceable pipe and from site of work complete all as specified and as directed.

All as per item No 53 here in before but for 20 mm bore of pipe.

All as per item No 53 here in before but for 25 mm bore of pipe.

All as per item No 53 here in before but for 40 mm bore of pipe.

All as per item No 53 here in before but for 50 mm bore of pipe.

Supply and fixing of 15 mm bore GI tubing, medium grade with all new fittings as required complete fixed to walls and ceilings or laid in floors/trenches including testing complete all as specified and directed.

All as per item No 58 here in before but for 20 mm bore of pipe.

All as per item No 58 here in before but for 25 mm bore of pipe.

All as per item No 58 here in before but for 40 mm bore of pipe.

All as per item No 58 here in before but for 50 mm bore of pipe.

Excavating in trenches, not exceeding 1.5 m wide and not exceeding 1.5 m in depth ; for foundation, etc. or for taking out/laying of CI/GI pipes etc or for shafts,wells, cesspits,manholes, pier holes, etc. not exceeding 10 sq m on plan and getting out in soft / loose soil complete all as specified and directed

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

Removing excavated surplus soil to a distance not exceeding 50m and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified and directed.

Taking down cast Iron /DI water pipe line 80mm bore (including all fittings), with spigot and socket ends and lead joints including burning out joints for recovering lead including stacking of serviceable pipes aside complete all as specified and as directed.

All as per item No 66 here in before but for 100mm bore of pipe.

All as per item No 66 here in before but for 150mm bore of pipe.

Supply and lay Ductile Iron Pipe spigot & socketed ends, including rubber gasket etc. (suitable for Tyton joint), centrifugally cast, Class K-7, 80 mm bore in any length, laid in trenches & leakproof jointing with existing DI/CI pipe line alogwith accessories fittings like flange, rubber gasket, nut bolts etc. and testing complete all as specified and as directed.

All as per item No 69 here in before but for 100mm bore of pipe..

All as per item No 69 here in before but for 150 mm bore of pipe.

Material and labour in replacement DI fittings for double ended flanged pipe such as bends (any type, any radius) tapers any type, Tee, pieces, collars, caps plugs etc from 80mm to 150mm bore dia DI pipes complete all as specified and as directed.

M&L for boring by trenchless technology method (either manual/automatic) for crossing the road to pass the DI/GI/PPR pipe of size 20mm to 150mm up to a depth 1.0 mtr complete all as specified and directed

Supply and fix in repairs 100mm dia mettallic cast iron foot valve at the end of GI pipe/PVC pipe with complete fixing accessories under jackwell/river complete all as specified and directed.

M/s PRABIR ENTERPRISE (BID ID -3227453)