REPAIR/ MAINTENANCE OF WATER SUPPLY INSTALLATION INCLUDING CLEANING OF OH TANKS AND UG SUMP AT AFS AMLA

Amount

M & L for cleaning of underground water storage tank/sump after scrapping out the scales/deposits from all inner surfaces of sump thoroughly washing with bleaching powder solution (mixed @ 0.5 Kg of bleaching powder of chlorine content 30% per 1000 liters of water), bailing out the settled materials completely away from the site within 100 metres distance, cleaning the tank with clean water and finally sterilizing the tank as mentioned in notes below and resetting the existing level readings complete including taking down and re-fixing of foot valve after necessary cleaning, repairs etc., and replacing minor parts if any required for proper functioning of foot valve, testing and writing “TANK CLEANED ON…..”(date), “DUE DATE ON…..(date) with 10 cm size white letters on black back ground by engaging skilled artist using best quality synthetic enamel paint all as specified and directed by Engr-in-Charge for the following sizes:-

50,000 glns capacity water storage tank at Filter House

25,000 glns capacity underground sump at site C

1,00,000 glns capacity underground sump at Malanjhiri Pump House

All same as per item No. 1 here in before but for RCC Jack Well of capacity 22,000 glns at Kudmud Pump House

All same as per item No. 1 here in before but for RCC over head tank at 80 feet staging of capacity 2,00,000 glns having two compartments at Filter House.

All same as per item No. 1 here in before but for RCC over head tank at 80 feet staging of capacity 25,000 glns having two compartments near site C Notes for Item No 1 to 4:- The contractor should follow the following procedure in addition to above which demeed to be included in the contractor quoted rate. (a) Mechanized removal of all dirty water by using high capacity submersible pumps. (b) Removal of sludge by using vaccum operated pump (c) Cleaning of walls, ceiling and ground by high pressure rotary jet of 12 Kg/sqcm pressure. (d) Removal of all dirt particles by industrial wet vaccum cleaner leaving the tank physically cleaned as per Engr-in- Charge satisfaction. (e) Sterilization of tank by agents eco-friendly, bio-degradable and highly effective against all pathogens, or approved chemical. (f) Sterilization of tank atmosphere by industrial UV radiator leaving the tank complete sterilized (g) All the required Tools and plants, lubricants/oils and materials will be supplied by the contractor during the work. (h) Fresh air to be blown into the tank for a period before allowing a person to enter. The cleaner should wear protective clothing, including gloves, a boots, Safety Helmet and glasses. Contractor should make sure someone remains outside the tank, next to the access hatch all the time in case the cleaner has an accident. The availability of gas masks and portable ventilators would be made available by the contractor at site during cleaning operation.

M & L for Cleaning existing sewage underground sump (size average dia 6 metre; average depth 4.5 metre) of Sewage treatment Plant at Tandon camp including cleaning of filter bed/soakage pit (in foul condition) of any size and depth by removing the water scum, sludge/vegetation, old saturated brick bats, etc completely using pumps or manually and disposing off the silt/ sludge etc., to a distance not exceeding 100m; as required for proper functioning complete all as specified and directed.

M & L for complete removal of existing treatment of potable water tank by removing old painted surfaces using paint removers or burning off by blow lamps and cleaning with scrapers etc., and applying two coats nontoxic, non-corrosive water proof coating over a coat of primer inside the tank complete all as specified and directed. Make:- Sikagard-67, Dr Fixit Pidifine 2K, Clean Tech PW or equivalent as certified by CFTRI, Mysore for potable water/ BIS Notes:- a) Surface preparation and application procedure shall be as per manufacturer’s guidelines and directions of Engineer-in-Charge. b) The paint used should not contain any harmful chemical content to pollute drinking water. A manufacturer certificate for the same is mandatory and contractor must produce the certificate as mentioned above before application to Engineer-in-Charge.

M & L for preparation of internal surfaces of the overhead water storage tank of 80 ft staging (1x200000 gallon at Filter House) by scrapping all dirt’s, dust and rust from the ceiling, walls, floor etc., and applying two coats of non-toxic, non-corrosive waterproof coating over a coat of primer inside the tank including grouting and rendering of damage surface to match with the existing surface if any complete all as specified and directed. Make:- Sikagard-67, Dr Fixit Pidifine 2K, Clean Tech PW or equivalent as certified by CFTRI, Mysore for potable water/ BIS

All same as per item No. 7 here in before for internal surfaces of underground sump of capacity 50,000 gallons and 1,00,000 gallons at filter house and Malanjhiri Pump House Make:- Sikagard-67, Dr Fixit Pidifine 2K, Clean Tech PW or equivalent as certified by CFTRI, Mysore for potable water/ BIS Notes for Item No 7 & 8:- a) Surface preparation and application procedure shall be as per manufacturer’s guidelines and directions of Engineer-in-Charge. b) The paint used should not contain any harmful chemical content to pollute drinking water. A manufacturer certificate for the same is mandatory and contractor must produce the certificate as mentioned above before application to Engineer-in-Charge c) Contractor has to ensure the safety of the working personnel and the quoted rate inclusive the rate of tools and equipments needed for the job

M & L for preparation of the external surfaces of the overhead water storage tank of 80 ft staging (1x200000 gallon at Filter House) by scrapping all dirt’s, dust and rust from the roof, walls, ceiling etc., and applying two coats of heat reflective paint even and smooth of white colour with blue colour bands including grouting and rendering of damage surface to match with the existing surface if any complete all as directed by Engr-in-charge. Make of Paint: COOL-ROOF-AV, Dr Fixit Notes:- a) Surface preparation and application procedure shall be as per manufacturer’s guidelines and directions of Engineer-in-Charge. b) The paint used should not contain any harmful chemical content to pollute drinking water. A manufacturer certificate for the same is mandatory and the contractor must produce the certificate as mentioned above before application to Engineer-in-Charge c) Contractor has to ensure the safety of the working personnel and the quoted rate inclusive the rate of tools and equipment needed for the job

M & L for preparation of the external surfaces of the overhead water storage tank of 80 ft staging (1x200000 gallon at Filter House) and other water supply installations by scrapping all dirt's, dust and rust from roofs, walls, pillars etc., and applying two coats of mosquito repelling paint even and smooth of white colour with blue colour bands including grouting and rendering of damage surface to match with the existing surface if any complete all as specified and directed by Engr-in-charge. Make of Paint : CORION - REPEL PAINTS Notes :- a) Surface preparation and application procedure shall be as per manufacturer’s guidelines and directions of Engineer-in-Charge. b) Contractor has to ensure the safety of the working personnel and the quoted rate inclusive the rate of tools and equipment needed for the job.

M&L for taking out carefully complete filter media from the existing gravity filter at filter house (total approx quantity 45 cum) and stacking in segregation size/ item wise (viz. gravel/pebble/ grit/ sand) outside the plant house at a distance exc 20 m and n.exc 50 m and cleaning the all filter media (viz. gravel/pebble/ grit/ sand) using bleaching powder and water including refiling the cleaned filter media at the same location complete all as specified and directed.

Supply and filling pebble filter media of sizes 20-40 mm confirming to the following specifications:- Bulk density 1500kg/Cum UC less than 1.5% Acid solubility less than 5 %

Supply and filling pebble filter media of sizes 12-25 mm confirming to the following specifications:- Bulk density 1500kg/Cum UC less than 1.5% Acid solubility less than 5 %

Supply and filling quartz white sand for filter media conforming to the following specifications:- Bulk Density:1600Kg/Cum Uc less than 1.5 % Acid solubility less than 5% Silica contents-90% Size 0.4-1.2mm Note for Items Nos 12, 13 & 14: 1.) The quality and testing requirement of filter media supplied by contractor for use in pressure filter shall conform to IS: 8419 (Part -I) – 1977 (Reaffirmed 2001). 2.) The quality testing certificate of filter media is to be produced by the contractor before taking payment. 3.) The filter media shall be tested from any authorised laboratory after getting written approved by GE. Expenditure against testing will be deemed to be included in qouted rate.

Supply and fix in repairs lamella clarifier plate made out of FRP (Fibre reinforced plastic confirming to BIS standards) of size 1210mm x 910mm x 3mm complete all as specified and as directed.

M&L for taking out carefully lamella clarifier plate made out of FRP (Fibre reinforced plastic confirming to BIS standards) of size 121cm x 91cm x 3 mm thick from plant including cleaning using bleaching powder with water and refixing in same position complete all as specified and as directed.

M&L for taking out existing of UPVC header and lateral pipes of bore 50 mm dia without causing any physical damage and cleaning the same with clean water and bleaching powder and refixing the same in old position including replacement of damaged minor fitting if any required for proper operation such as rubber gasket, bend, tee etc. complete all as specified and directed.

S&F in repairs UPVC (SCH - 80) header and lateral pipes of bore 50 mm dia with necessary fittings and nylon net cover suitable for multi inlet/ outlet of sand filter complete all as specified and directed. Note: Nylon net cover will be measured and paid separately as supply only.

Supply only nylon net cover suitable for multi inlet/outlet pipe of sand filter all as specified.

Supply and fix in repairs water level indicator at overhead tank of 80 feeet staging float and board type with specification as measuring range 1-6 mtrs, float valve , wire pointer M.S. epoxy coated red coloured, scale 6" wide, housing , pulley and appropriate MS channell for support and mounting including all parts being alluminium powder coated. The job involves all alteration at site complete all as specified and directed.

Overhauling and servicing of vacuum type gas chlorinator system of capacity 0-1 kg per/ hour bearing model No SM117 of Supreme Technologies, Nagpur by authorised OEM including replacing old unserviceable spare parts and testing complete all as specified and directed. Note:- (i) Cost of spare parts replaced shall be measured and paid separately as supply only under relevant items herein after. (ii) Labour charges for replacement of spares parts if any required during servicing of AC’s deemed to be included in the quoted rate. (iii) OEM Test Report shall be submitted by the contractor after testing.

Supply only following spares required for replacement during the process of Overhauling/ servicing of the vacuum type gas chlorinator system of capacity 0-1 kg per/ hour bearing model No SM117 of Supreme Technologies, Nagpur:- Note: Spare parts supplied shall be from the authorised delar of OEM.

Vacuum regulator diaphragm

Vacuum regulator 5/16 X 2 ½” Long 8 nos.

Vacuum regulator O ring.

Inlet valve assembly.

CPVC union O ring

Yoke clamp gasket.

Connector gasket.

Control valve O ring.

Flow meter long stud

Flow meter long stud bolt.

Ejector diaphragm

Ejector Long stud.4 nos.

Ejector Nut 8 nos.

Spring.

PU tubing.

Isolation needle valve

M & L for refilling chlorine gas from government authorised agency in department cylinders of 100 kgs capacity including transportation from and to the filling agency and replacing weared and teared parts etc., if any noticed before refilling complete all as specified and directed. Note:- Contractor has to obtain necessary certificates for cylinder and chlorine gas from respective departments of Government Of India all deemed included in quoted rate.

Supply only trichloroisocyanuric acid TCCA 90 granules having chlorine content => 90% in air tight containers all as directed. Make:- Grasim Industries (or) any other equivalent ISI marked make shall be used after getting approval from GE Note:- Supply only items shall be taken over on charge through necessary Receipt Voucher duly signed by all concerns

Supply only calcium hypochlorite granules having chlorine content => 65% in air tight containers all as directed. Make:- Grasim Industries (or) any other equivalent ISI marked make shall be used after getting approval from GE Note:- Supply only items shall be taken over on charge through necessary Receipt Voucher duly signed by all concerns

M & L for testing potable water sample from the nearest district Laboratory, P.H.E. Madhya Pradesh including transportation complete all as specified and directed. Notes:- The rate quoted by contractor includes the following: 1. Collecting water samples in sterlised containers from the location as directed by Eng-in-Charge 2. Transporting the collected sample immediately to the lab and submitting the test report to the Eng-in-Charge.

M&L for disconnecting water pipe line, electric connection and taking out submersible pump set of any capacity alongwith column pipe and submersible cable with the help of chain pull block using tripod etc., from maximum depth of 250 feet as required at site and re-lowering the same after developing the bore well including replacement of rubber gasket, nuts, bolts and washer where ever required including testing complete all as specified and directed. Notes:- (i) Development of borewell will be measured and paid under respective items of sch'A'

M&L for redevelopment of borewell in accordance with IS:2800 (part-I)and IS 11189 to establish a maximum rate of usable water yield without sand content (beyond the permissible limit)with required capacity air compressor, running the compressor for required time till is fully developed, measuring yield by ‘V’ notch method or any other approved method measuring static level & drawn etc. by step draw method, collecting water samples & getting tested in the approved laboratory including disinfection of borewell, all complete including hire transportation & labour charges of air compressor tools & accessories etc. all as per required and direction of Engineer-in-Charge.

S & F in repairs following items for Diaphragm motor of capacity 0-20LPH with discharge tubing size 6mm/8mm and discharge pressure upto 5kg/sqcm as per sample Make:- E-Dose

PTFE Diaphragm with gasket

Suction valve assembly

Discharge valve assemby

Elastomer sealing set

Diaphragm motor pump set

S & F in repairs 50 mm dia PVC stirrer suitable for Diaphragm type chlorine doser as per sample shown by Eng-in-Charge.

Supply and fix in repairs Coiled Copper Tube Connector consists of an annealed copper tube of outer dia 3/8" inch/ 10 mm with Brass Nipples and Brass Unions 5/8" BSP [F] on either side to suit chlorine container valves; including brazing the brass nipple to copper tube complete all as specified and directed.

S & F in repair PVC 6mm/8 mm strainer for chorine doser machine

S & F in repair 20mm bore valve made of Aluminum Silicon Bronze to be mounted on chlorine gas cylinder including all necessary accessories having maximum working pressure 500PSI, burst pressure 7200PSI conform to relavant IS complete all as specified and directed.

Demolition of brick valve chamber of size 1500mm x 1500mm x 1200mm (Internal), including PCC coping and removing the debris away from site to a distance exc 50 metre but not exc. 100 metre complete all as directed.

M&L for valve chamber of size 1500mmx 1500mmx1200mm (Internal) with fly ash brick masonry 230 mm thick in CM 1:6, PCC 1:4:8 type, D2 foundation 75 mm thick, finished fair and even, PCC 1:2:4 type, B1 coping 150 mm thick on top of a brick wall for fixing chamber cover, 10 mm thick cement mortar 1:4 plaster on exposed surfaces of a brick wall (both internal and external), mild steel plate cover of 3.15mm including mild steel angle iron 40x40x6 mm size frame fixed to PCC coping with the same size of angle iron hold fast and with necessary handle and locking arrangements, metal surfaces duly painted with two coat of black bituminous paint over a coat of red oxide zinc chrome primer and finishing the masonry/concrete surfaces with 3 coats of whitewash including necessary excavation and earthwork complete all as specified and directed.

Demolition of brick valve chamber of size 900mm x 600mm x 1000mm (Internal), including PCC coping and removing the debris away from site to a distance exc 50 metre but not exc. 100 metre complete all as directed.

M&L for valve chamber of size 900mmx 600mmx1000mm (Internal) with fly ash brick masonry 230 mm thick in CM 1:6, PCC 1:4:8 type, D2 foundation 75 mm thick, finished fair and even, PCC 1:2:4 type, B1 coping 150 mm thick on top of a brick wall for fixing chamber cover, 10 mm thick cement mortar 1:4 plaster on exposed surfaces of a brick wall (both internal and external), mild steel plate cover of 3.15mm including mild steel angle iron 40x40x6 mm size frame fixed to PCC coping with the same size of angle iron hold fast and with necessary handle and locking arrangements, metal surfaces duly painted with two coat of black bituminous paint over a coat of red oxide zinc chrome primer and finishing the masonry/concrete surfaces with 3 coats of whitewash including necessary excavation and earthwork complete all as specified and directed.

M&L for oiling, servicing, greasing of existing manually operated gate of check dam of size 3.0x1.5 metre at the depth of 9.5 Mtr below the ground level at Kudmud pump house including taking off the sluice gate on other side of check dam and refixing the same after necessary reapirement and refixing the same including fabricating and making good dents on edges of gate bolts holes with additional reinforcement of 50x6 mm flat with drilled holes on the edges all round suitable rubber insertion sheet with new set of bolts nuts all as directed. The Job includes repacement of Supply and fix in repair ball bearings suitable for 40 mm inner dia pipe made of stainless steel at the kudmud dam gates spindle by detaching the handle etc. inclusive of all alteration required all as directed by Engineer-in charge. Make of ball bearing:- SKF, Tata, NBC (NEI)

M & L for Running welding in repairs for thickness of metal to be welded not exceeding 6 mm all as specified and directed.

Taking up of old unserviceable shaft, stirrer etc from liquid chorinator and repalcing the same with new shaft made out of UPVC pipe 15 mm, with length 45 cm approx. mounted on two sets of ball bearing operated via belt (new) attached with 1 HP motor including necessary alteration, welding etc al as specified and as directed by EIC.

M&L for removal of bio-degradable bee-hives wild growths from the structure tank and member of the overhead reservoir complete including wild bees with suitable application of fuming smoke or chemical fog application and applying a cost of alergent for keeping away or return of bee-hives (All the bee-hives on the tank shall be removed and cleaned) Note : The removal of bee-hives shall be carried out with total precautions so that wild bees do not get the time and opportunity to attack the public in the locality.

Supplying and replacing rubber mat of size 1m X 2m X 19mm thickness after taking out old mat embedded in floor carefully and making good the disturbed portion in cement concrete 1:2:4 (type B-0) or CM 1:3 as required at site complete all as specified and directed.

S&F in repairs rubber sheet 3 mm thick all as specified and directed.

Note:- The amount against the Schedule of Credit mentioned in the tender document shall be deducted from the total amount quoted against Sch 'A' while deriving the Contract Sum for Acceptance.

Raj Construction