REPLACEMENT OF EXTERNAL RAW WATER SUPPLY LINE AND ASSOCIATED WORKS OF STP INCLUDING MANNING AND OPERATION OF MEENA STP UNDER GE (NW) NOFRA COLABA MUMBAI

Amount

Supply and Fix in repair GI tubing medium grade including provision of fitting and accessories in trenches for diversion and little improvement in Raw water supply line complete all as specified and directed by Engineer-in-Charge for the following sizes:- Make- Jindal/Tata/Swatik

40 mm bore

50 mm bore

80 mm bore

100 mm bore

Supply and Fix in repairs gun metal gate valve with iron wheel head screwed both ends for GI ppe including fittings ie union socket etc complete all as specified and directed by Engineer-in-Charge for the following sizes:- Make- Leader/HM/Zoloto (ISI Marked)

40 mm bore

50 mm bore

Supply and Fix in repair sluice valve, cast iron body flanged end drilled and non rinsing type brass spindle with long body, class P N 16, conforming to IS 14846 of 2000 including flange joint with rubber or fiber board, bolts, nuts and washers complete including pumping out accumulated water all as specified and directed for following sizes:- Make- Kirloskar/Leader/Venus/Kartar

80 mm bore

100 mm bore

Suply and fix in repair PVC float valve (ISI marked ) high pressure of PTMT with epoxy coated aluminium rod and high density plastic ball screwwed for iron pipe and fixed. ( Minimum weight 40mm- 690 Grams 50mm- 830 Grams including necessary GI fittings such as elbow, reducer, nipple etc complete all as specified and directed by Engineer-in-Charge for the following sizes:-

40mm bore

50mm bore

Openig the bottom and top cover of the cylinderical type sand pressure feed filtration plant and taking out the complete filter media from the vesel. Cleaning the complete internal surface area of the plant with wire brush,removing all the deposited sludge,mud dirt etc and cleaning the vessel with water. Washing complete sand filter media, screening with suitable size mesh stainer removing all the vegetation and making free from unwanted material. The scope of work includes the following :- (a) Re Filling only washed sand filter mdia into the vessel - 300 Kgs (b) Supply and filling New/Fresh barakar sand filter media into the plant- 2000 Kg (c) Supply and fix 8 mm thick rubber fiber gasket joints with nuts,washer, as existing size at top and bottom cover of plate. (d) Painting complete external surface of filter media, valves and connecting lines after completion of work. (e) Fixing of top and botton cover testing and commissioning complete

Openig the bottom and top cover of the cylinderical type activated carbon filter and taking out the complete filter media from the vesel. Cleaning the complete internal surface area of the plant with wire brush,removing all the deposited sludge,mud dirt etc and cleaning the vessel with water. Washing complete sand filter media, screening with suitable size mesh stainer removing all the vegetation and making free from unwanted material. The scope of work includes the following :- (a) Supply and filling New/Fresh activated carbon- 2000 Kg or (as required to fill) (b) Supply and fix 8 mm thick rubber fiber gasket joints with nuts,washer, as existing size at top and botton cover of plate. (c) Painting complete external surface of filter media, valves and connecting lines after completion of work. (d) Fixing of top and botton cover testing and commissioning complete.

Cleaning of sullage water holding sump of size 7.6m depth and 7.5 m dia by dewatering the existing soil, removing of mud/ wast,slit, sludge by using pneumatic pump adhering proper precautions and safety measures,cleaning the entire surface of bottom and side walls by washing with a pressure nozzle to remove entire dirt etc all as specified and directed by Engineer-in-Charge.

Cleaning of low speed aeration tank of size 9.5 x 9.5 x 3 meter depth by dewatering/pumping out the existing soil, sludge by pneumatic/Non clog pump after adhering proper precautions and safery measures, cleaning the entire surface and side walls by washing with pressure nozzle to remove entire dirt etc all as specified and directed by Engineer-in-Charge.

Cleaning of central drive secondary clarifier chamber of size 6 meter dia x 2.05 meter deep by dewatering /pumping out the existing soil,slit, sludge by using pneumatic/Non clog pump set after adhering proper precautions all safety measures, cleaning the entire surface of bottom and side walls by washing with a pressure nozzle to remove entire dirt etc complete all as specifed and directed by Engineer-in-Charge.

Cleaning of filter feed tank of 4 x 3 x 2 meter deep by dewatering/ pumping out the existig soil, slit sludge by using pneumatic /Non clog pump set after adhering all safety measures and all precautions, cleaning fo entire surface and bottom, side walls by washing with a pressure nozzle to remove all dirt and algae formed on entire surface complete all as specified and directed by Engineert-in-Charge.

Cleaning of treated water holding underground sump of size 4 meter dia x 7 meter deep by dewatering/pumping out the existing soil, slit sludge by using pneumatic/ Non clog pump set after adhering all safety measures and precautions, cleaning the enire surface of bottom and side walls by wire brush and washing with the help of a pressure nozzle to remove entire deposited material complete all as specified and directed by Engineer-in-Charge.

Supply & Fill microbes (K Bio pack media)

Supply & Fill Alum Non ferric.

Supply & Fill Sodium hydro chloride (Liquid)

Supply & Fill Bleaching powder Grade -I ISI Mark,Make:Shri Ram

Supply and Fill Potassium permanganate(KMnO4)

Supply and Fill Caustic Soda (NaOH)

Disconnecting complete gear box assembly from low speed fixed type AERATOR and taking out carefully from aeration chamber,strip opening and dismantling complete gear box assembly for replacement of following worn out rusted or broken unserviceable parts complete all as specified and directed:- (a) Roller sealed bearing SKF - 3309-01 No. (b) Ball bearing SKF-6311-01 No. (c) Carbon steel shaft duly threaded with check nut 50 cm long 50 mm dia as existing-01 No. (d) Gear box oil-07 ltrs (e) Oil seal-01 No. (f) Carbon steel star pinion gear,80 mm dia. 25 Teeth cat part No. 6002149PB-01 No, (g) Pressure plate duly drilled to suit for fixing with gear box -01 No. (h) Painting complete gear box, platform hand rail and connected items complete all as specified and directed by Engineer-in-Charge

Disconnecting and taking out old unserviceable PVC armoured hose pipe with CI foot valve and GI bend from sullage connection chamber supply and fix new heavy duty PVC armoured hose pipe 110 mm dia 8 meter long duly fitted with 100 mm dia CI foot valve Make : NORMEX and heavy duty GI bend including replacement of Nuts bolts washers rubber gasket etc and connecting with pump set testing and lowering in to the collection chamber complete all as specified and directed by Engineer-in-Charge

Disconnecting and taking down and dismentling pump sets,horizontal non cloging type of capacity 30 HP installed on sewage collection sump at MEENA pump house for overhauling, painting (after complettion of work) and repair /replacement of the following worn out parts (a) CI Impeller of Existing size (b) Carbon steel shaft duly threaded from boath ends as existing -01 (c ) Carbon steel keys for pump shaft -02 (d) Ball bearing 6207 SKF -01 (e) Ball bearing 6307 SKF -01 (f) Gasket as Existing -01 (g) Assembling ,coupling with electric motor and testing complete all as specified and directed by Engineer-in-Charge

Disconnectin and taking down and dismentling pump sets,horizontal non cloging type pump of capacity 7.5 HP installed on sewage collection sump/common base plate at filter feed tank for recycling of sullage water for servicing /over hauling and repair /replacement of the following worn out parts:- (a) CI Impeller of Existing size (b) Carbon steel shaft as existing-01 (c) Carbon steel keys for pump shaft -02 (d) Ball bearing 6206 SKF -01 (e) Ball bearing 6306 SKF -01 (f) Gasket as Existing -01 (g) Assembling ,coupling with electric motor and testing complete all as specified and directed by Engineer-in-Charge

Supply and fixing in repairs rotational moulded PVC tank 2000 ltr in position at any location on top of the building including removing existing tank disconnecting all incoming and out going connections, provision of new fittings suitable up to 80mm bore GI pipe all as per existing requirements complete all as specified and directed by Engineer-in-Charge.

Taking down old unserviceable tanks any capacity Supply and firxing rotational moulded polyethylene water storage tanks of 3000 Ltrs capacity (cylindrical vertical with closed top) hoisted and fixed in position complete all as specified and directed by Engineer-in-Charge.

Taking down old unserviceable tanks any capacity Supply and firxing rotational moulded polyethylene water storage tanks of 5000 Ltrs capacity (cylindrical vertical with closed top) hoisted and fixed in position complete all as specified and directed by Engineer-in-Charge.

Taking down old unserviceable tanks any capacity Supply and fix PVC polythene water storage tank lid of any capacity as specified and directed by Engr-in-Charge.

Disconnectin and taking down and dismentling pump sets,horizontal non cloging type of capacity 2.0 HP installed on common base plate for recycling of sullage water from clarifier to Aeration tank for recycling of sullage water for servicing /over hauling and replacement of the following worn out parts:- (a) CI Impeller of Existing size (b) Carbon steel shaft as existing-01 (c) Carbon steel keys for pump shaft -02 (d) Bush and ball bearingof existing size -01 (e) Gasket as Existing -01 (f) Assembling ,coupling with electric motor and testing complete and complete painting complete all as specified and directed by Engineer-in-Charge

Disconnecting electric supply from the motor, removing coupling and kepping in safe custody and removing motor of capacity 2 HP and taking out pump motor of capacity 1.5 KW, 3 Ph, 415 /volt, 50 Hz from Meena STP and shift to workshop and to carryout repair, dismantle the motor cutting/removing the burn out winding, cleaning the slots and rewoinding the motor with super enameled copper winding wire of same gauge/turns, heat varnishing, replacing the bearing (02 Nos) shaft assembly and shaft sleeves, reassemble the motor and fixing it in its original position, reconnecting all the removed lines and testing all complete.(Painting of complete motor and connected lines,valves after completion of work)

Disconnecting electric supply from the motor, removing coupling and kepping in safe custody and removing motor of capacity 7.5 HP and taking out pump motor of capacity 6 KW, 3 Ph, 415 /volt, 50 Hz from Meena STP and shift to workshop and to carryout repair, dismantle the motor cutting/removing the burn out winding, cleaning the slots and rewoinding the motor with super enameled copper winding wire of same gauge/turns, heat varnishing, replacing the bearing (02 Nos) shaft assembly and shaft sleeves, reassemble the motor and fixing it in its original position, reconnecting all the removed lines and testing complete all as specified and directed by Engineer-in-Charge. (Painting of motor after completion of work)

Disconnecting electric supply and supply line from submersible of capacity 7.5 HP held in main sewwage holding sump, taking out adhering all safety measures, shift to workshop to carryout necessary repair, dismantle the pump cutting/removing the burnt winding, cleaning the pump ckearly, and rewinding the motor with proper insulation with replacement of bearing, bushes as specified and directed by Engineer-in-Charge. (Painting of motor after completion of work)

Disconnecting electric supply from the motor, removing coupling and kepping in safe custody and removing motor of capacity 10 HP and taking out pump motor of capacity 7.5 KW, 980 RPM, 3 Ph, 415 /volt, 50 Hz from Meena STP and shift to workshop and to carryout repair, dismantle the motor cutting/removing the burn out winding, cleaning the slots and rewoinding the motor with super enameled copper winding wire of same gauge/turns, heat varnishing, replacing the bearing (02 Nos) shaft assembly and shaft sleeves, reassemble the motor and fixing it in its original position, reconnecting all the removed lines and testing complete all as specified and directed by Engineer-in-Charge.(Painting of motor after completion of work)

Disconnecting electric supply from the motor, removing coupling and kepping in safe custody and removing motor of capacity 30 HP and taking out pump motor of capacity 22 KW, 2900 RPM, 3 Ph, 415 /volt, 50 Hz from Meena STP and shift to workshop and to carryout repair, dismantle the motor cutting/removing the burn out winding, cleaning the slots and rewoinding the motor with super enameled copper winding wire of same gauge/turns, heat varnishing, replacing the bearing (02 Nos) shaft assembly and shaft sleeves, reassemble the motor and fixing it in its original position, reconnecting all the removed lines and testing complete all as specified and directed by Engineer-in-Charge.(Painting of motor after completion of work)

Disconnecting electric supply from motor, removing wornout coupling and supply and fix new coupling for the follolwing:-

2 HP motor

7.5 HP motor

10 HP motor

30 HP motor

Taking up old rusted existing Meena STP board and material and labour for Glow Sign Board showing STP name and ADDRESS with radium letter of size 6 x 4 ft covering complete lentgth of gate alongwith two legSupply and Fixingrame of Stainless steel of 11.5 feet complete with foundation all as specified and directed by Engineer-in-Charge.

Supply and fixing post top lantern LED type 40 watt 230 watt volts AC outdoor type with decorative post top for 360 degree indirect light IP 65 protection with impact and corrosion resistant complete with driver and lamp complete all as specified and directed by Engineer-in-Charge. Make Havells/CG/Philips/ Wipro/ Bajaj

Supply and fixing LED flood light 70 watt 230 V AC outdoor type with thermal management in multiple optics and equipped with IP66 protection, with impact and corrosion resistant complete with driver and lamp. all as specified and directed by Engineer-in-Charge. Make Havells/CG/Philips/ Wipro/ Bajaj

Earthing complete with galvanized steel earth plate electrode 600x600x6mm burried directly in ground (earth pit not less than 2.25 m deep below ground level) with top edge of earth plate not less than 1.5m below normal ground level connected with galvanized iron earth lead strip of 32x6mm by means of bolts, nuts, check nuts and washers of galvanized iron or steel complete with 15mm dia GI light grade protection pipe, 20mm dia GI medium grade watering pipe with funnel including charcoal, dust, salt, PCC 1:2:4 in pit with pre- cast RCC 1:2:4 cover reinforced with XPM not less than 4 Kg Sqm, test point etc. all as shown in electric plate No. 3 of SSR Part-I complete with necessary earth work in any type of soil, removal to a distance not exc. 50m, testing on completion complete all as specified and directed by Engineer-in-Charge

Repair/replacement of unserviceable/burnt contactor of capacity 30 Amps ( MNX 18) in existing control panel complete all as specified and directed by Engineer-in-Charge Make-Standard/ L&T/Havells/Legrand ABB Crompton Greaves

Taking down old/ unsserviceable foot valve from sewage collection tank/ treated water sump Supply and fix new foot valve along with screen filter of size 100 mm as specified and directed by Engineer-in-Charge.

Material and labour for attending Raw water supply complaints and rectification as mentioned below here in after Note :- (a) Scaffolading if any required during the progress of work the contractor shall provide the same with out any extra cost to the department the rates quoted shall be deemed inclusive of this provision (b) Necessary complaint book shall be provided and maintained by the contractor, complaint slip shall be deposited very next day in the complaint cell of NOFRA w/s duly signed by the accupant (c) Rates for small fittings and parts are deemed to be included in item rate however pipes, valves, PVC connection shall be measured and paid for separately under relevent items of schedules.

Internal complaint (in side Room) Including Flush tank Cleaning 2 nos

External complaint upto 4th floor

External complaint upto 8th floor

External complaint upto 12th floor

External complaint upto 16th floor

Supply and fix steel water tubing galvanised medium grade (ISI Marked) of following size, with all fitting fixed complete to walls and ceilings or laid in floor/wall/ceiling (in high rise building including scafolding) complete all as specified and directed by Engineer-in-Charge

25 mm bore

20 mm bore

15 mm bore

Supply and fix in repair gun metal gate valve, with iron wheel head, screwed both ends for GI pipe of following sizes, with union, (ISI Marked) fixed in existing line and in position complete all as specified and directed by Engineer-in-Charge

25 mm bore

20 mm bore

15 mm bore

Supply and fix in repairs angular stop valve cast copper alloy ,screwed down ,high pressure or butterfly handle screwed both ends for iron pipe or for union and fix of size 15 mm bore.

Supply and Fix in repairs PVC Valveless, syphonic action type, flushing cistern low level all accesories complete all as specified and directed by Engineer-in-Charge

Supply and fix in repair 450 mm long PVC connectors with brass adapters, washers etc complete all as specified and directed by Engineer-in-Charge.

Supply and fix in repair concealed stop valve suitable for 15mm bore GI pipe complete all as specified and directed by Engineer-in-Charge.Make : Essco, Hindware, Jaquar.

Supply and fix in repair stop valve suitable for 15mm bore GI pipe complete all as specified and directed by Engineer-in-Charge. Make : Essco, Hindware, Jaquar.

Cleaning of raw water OHT tanks of capacity up to 2000 ltrs in existing position by mechanised pressure cleaned by Mechanical high pressure spray and steel wire brush to remove algae/dirt/foregin completely and soaking out water/dirt with a high pressure wet vaccume pump and removing spoils outside of MD land and providing sticker showing the date of cleaning complete all as specified and directed by Engineer-in-Charge

Material and Labour for cleaning of GI pipes by opening of fittings, removing mud, sludge, etc and refixing as stated above for pipes of size. NOTE :for items No 1 to 8 above : Contractor has to arrange one qualified Plumber with one Helper daily report to Complaint Cell for repair/replacement of pipe line including plumbing works (including Sunday & holiday) and rates to be included in Unit Rate.

25 mm bore

20 mm bore

15 mm bore

Taking up or down steel /PVC tubing and connections and removing from store of following sizes, complete all as specified and directed by Engineer-in-Charge

25 mm bore

20 mm bore

15 mm bore

Manning and Operation of sullage treatment. Manning and operation in three shifts 0600 to 1400 hours, 1400 to 2200 hours & 2200 to 0600 hours having one FGM (Skilled) and two Valve man (semi-skilled) in each shift of sullage Recycling water treatment plant of capacity 400 cum perday with Bio remediation consisting of the following equipment and activities :- EQUIPMENTS (a) Submersible Monoblock sewage pump non clog, motor 3 Phase, 430/440V, 5.0 HP - 02 Nos. installed on sewage collection tank (Sump) for feeding to aeration tank. (b) Low speed fixed type aerator in concrete tank of size approx 9.5 m X 9.5 m x 3m with motor 3 Phase, 430/440V, 10 HP Squirrel cage induction motor – 01 No, gear box, inverted cone type solid non clog self cleaning MS impeller, MS shaft, love joy coupling base frame bottom coupling with connected accessories complete – 02 No (c) Central drive MS clarifier installed in concrete tank of size approx 6 mtr dia x 2.505 m deep drive arrangement consisting of motor, 3 Phase 430/440V, 02 HP, gear box, central shaft, rake arm with blades and tie rod with connected accessories complete – 01 No (d) Recirculation Centrifugal pump installed on common base plate, motor 3 Phase, 430/440V, 02 HP – 02 Nos (e) Filter feed tank with Centrifugal pump installed on common base plate, motor, 3 Ph, 430/440V, 7.5 HP – 02 Nos (f) Sand Pressure Filter Cylindrical vessel with shell made out of MS Sheet with inlet distributor, under drain system, frontal piping with valve, sand filter media suitable for handling of 400 Cum/day sullage water to remove suspended matter to less than 30 mg/ltr with connected accessories complete – 01 No (c) Central drive MS clarifier installed in concrete tank of size approx 6 mtr dia x 2.505 m deep drive arrangement consisting of motor, 3 Phase 430/440V, 02 HP, gear box, central shaft, rake arm with blades and tie rod with connected accessories complete – 01 No (d) Recirculation Centrifugal pump installed on common base plate, motor 3 Phase, 430/440V, 02 HP – 02 Nos (e) Filter feed tank with Centrifugal pump installed on common base plate, motor, 3 Ph, 430/440V, 7.5 HP – 02 Nos (f) Sand Pressure Filter Cylindrical vessel with shell made out of MS Sheet with inlet distributor, under drain system, frontal piping with valve, sand filter media suitable for handling of 400 Cum/day sullage water to remove suspended matter to less than 30 mg/ltr with connected accessories complete – 01 No

(g) Activated carbon Filter Cylindrical vessel with shell made out of MS Sheet with inlet distributor, under drain system, frontal piping with valve, activated carbon, suitable for handling of 400 Cum/day sullage water with connected accessories complete – 01 No (h) Treated water circulating Centrifugal pump installed on common base plate, motor 3 Phase, 430/440V, 7.5 HP – 02 Nos and 2 HP- 02 Nos. (j) HDPE PVC Tank 500 Ltrs capacity for holding chemical like Alum, Na DCL etc with mechanical arrangement for continuous injecting fixed quantity of chemical – 02 Nos (k) Sullage Recycling water treatment plant LT control panel 3 Phase 430/440V with starter complete – 02 Nos (l) Centrifugal sewage pump non clog installed on sewage collection tank (Sump) for common base plate, motor, 3 Phase, 430/440 V, 10 HP – feeding to BMC sewage line - 01 No

(m) Submersible pump set 7.5 HP, 3phase 430/440 V installed on treated water sump with Chain pully block -2 Nos & LT control panel board - 1 No (n)Raw water pump house feeding of raw water to high rise buildings at Nofra and WNC (O) Mess area consisting of centrifugal pump set 30HP - 3 Nos & LT control panel board - 2 Nos. (o) Painting of all GI/CI pipes, valves and motors/ Pumps supports etc as specified and directed by Engineer-in-Charge (Twice) during the contract period. ACTIVITIES (a) Cleaning of entire plant room & equipments daily (b) Overhauling/greasing & replacement of pump gland packings monthly. (c)Filling of overhead tanks with raw water for high rise buildings at Nofra and WNC (O) Mess area by operating distribution valve & inlet valve of overhead tank by deploying required manpower to ensure sufficient raw water is made available round the clock to the bldg. Note for item No-1 (i) All chemicals required for addition in the water will be measured and paid seperately as supply only under Sch 'A' Part II seperately. (ii) Testing of water sample shall be carried out by contractor from Govt.approved lab/registered lab monthly and the should be produced to Engineer-in-Charge without fail.

Shree Ayyappa Engineering

shubham construction

cooltech engineering services

ASHOK ENTERPRISES