REPAIR AND MAINTENANCE OF DRINKING WATER CUM IRON REMOVAL TREATMENT FILTERATION PLANT WATER TREATMENT PLANT INCLUDING MISC REPAIRS AT INA EZHIMALA

Amount

M&L for cement concrete in sub floors, sub-bases, floors and paving's of cement concrete type C-2, 1:3:6 (40mm graded aggregate) of 100 mm thickness complete all as specified and as directed.

Demolition of cement concrete (unreinforced) of any description and in any position not otherwise specifically provided complete all as specified and as directed.

M&L for collecting of drinking water sample from below mentioned points all as directed by Engr-in-charge, handling and transportation of samples to NABL accredited laboratory as approved by authorities, carrying out the analysis of drinking water as per latest IS norms complete all as specified and as directed. Notes:- i)The quoted rate is deemed to be inclusive of collecting of samples and transportation to lab. ii) The testing and analysis of water collected considered as one job. iii) The contractor shall submit the test report of water samples once in a month.

(a) Filteration plant - Raw water

(b) Filteration plant - Treated water

(c) RL - 30 sump inlet

(d) S2 sump oultet

(e) User end as location specified by Engr-in-Charge

M&L for collecting well/borewell water sample from points all as directed by Engr-in-charge, handling and transportation of samples to NABL accredited laboratory as approved by authorities, carrying out the analysis of pH, total alkalinity, iron, TDS, TSS, T-Coli, E.Coli, turbidity and any other 2 parameters specified by Engr-in-Charge. Notes:- i)The quoted rate is deemed to be inclusive of collecting of samples and transportation to lab. ii) The testing and analysis of water collected considered as one job. iii) The contractor shall submit the test report of water samples once in a month.

M&L for cleaning of aeration tank of size 21mx7mx3m, capacity of water 450000 ltrs, removing the sludge, dirts, sediments, slits etc from the bottom and wall inside the tank and cleaning the surface using brushes and bleaching powder and other cleaning materials as required. Applying one coat of lime wash inside and one coat of acrylic exterior emulsion on outside surface including writing the details of tank, capacity and date of cleaning outside at visible place on black background complete all as specified and as directed by the Engr-in- charge. Location:- Filtration Plant.

M&L for cleaning of clarifier tank of capacity of water 50000 ltrs, removing the dirts, sediments, slits etc from the bottom and inside the tank and cleaning the surface of internal surfaces and clarifier racks by using mechanical means with bleaching powder and other cleaning materials as required. Applying one coat of lime wash inside and one coat of synthetic enamel paint of suitable colour outside surface, refixing clarifier racks in positions complete all as specified and as directed by the Engr-in- charge. Location:- Filtration Plant.

M&L for repair/maintenance of alum/lime dosing system plunger type, 30 LPH with 1HP capacity 3 phase agitator motor, agitator with SS sweep blade, MS tank of 2000 ltrs, overhauling of gear box/1 HP motor with replacement of unserviceable MCB, LED indicator, digital voltmeter, ammeter, single phase preventer, high voltage low voltage protection including all plumbing items with necessary pipeline, fittings,valves and electrical connections for proper functioning and cleaning of inside MS tank properly and applying one coat of synthetic enamel paint of suitable colour on outside surface complete all as specified and as directed by the Engr-in-Charge. Notes:- The rate quoted by the contractor is deemed to be inclusive of the following:- (i) Dismantling, removing, rewinding of 1 HP motor in case of repairs as directed by Engr-in-Charge. (ii) Cleaning and Painting of MS tank. (iii) Repairing of control panel by replacing non-functioning MCBs, single phase preventer, protection coils, digital meters etc. (iv) Necessary pipeline, fittings, valves and all electrical connections.

Supply & Mix aluminium sulphate (Inorganic soluble powder, non-ferric) for well water treatment complete all as specified and as directed. Make:- As per E-in-C Specifications/General BIS.

Supply & Mix hydrated lime for water treatment etc complete all as specified and sa directed. Make:- As per E-in-C Specifications/General BIS.

Supply & Mix calcium hypochlorite 65-70% purity chlorine granules disinfectant for water treatment complete all as specified and as directed. Make:- As per E-in-C Specifications/General BIS.

Supply & Mix bleaching powder commercial grade 1 superior quality complete all as specified and as directed. Make:- As per E-in-C Specifications/General BIS.

M&L for preparing the surface by scrapping with wire brush, emery paper and painting with one coat of red oxide zinc chromate primer and two coats of synthetic enamel paint of existing shade for the following equipments installed at filtration plant complete all as specified and as directed.

(a) Vertical pressure filter and iron removal filter

(b) MS pipes 150mm

(c) Panel board of size 2mx1.5mx0.5m

S&F laboratory type digital pH meter (0-14 pH), 0-10mV/pH, 3 1/2 digit 7 segment display, accuracy 0.01 pH operate on 230V, AC supply with pH electrodes, buffer tablets in place of old unserviceable digital portable water proof type PH meter complete all as specified and as directed. Make:- Electronics india (model : Alpha - 01) or equivalent in make in india as approved by GE.

S&F laboratory type digital TDS meter (200 ppm - 1000 ppt), 3 1/2 digit 7 segment display, accuracy 0.1 TDS operate on 230V, AC supply with electrodes in place of old unserviceable digital portable water proof TDS meter complete all as specified and as directed. Make:- Electronics india (model : Alpha - 05) or equivalent in make in india as approved by GE.

S&F in replacement of laboratory type digital turbidity meter 0-1000 NTU in 4 ranges (0-2,20,200,1000 NTU), accuracy +/- 3% FS, +/- 1 digit, 7 segment display, 0.01 NTU resolution, photodiode detector, 6V, 0.3Amp tungsten lamp operate on 230V, AC supply with 5 sets of test tubes in place u/s conventional type turbidity test kit complete all as specified and as directed. Make:- Electronics india (model : EI-335) or equivalent in make in india as approved by GE.

M&L for re-fill chlorine test kit with coloured sample complete with all testing fitment and 100 ml residual chlorine reagent-1 (RC-1) in rexine finish wooden box/rexin box confirming to IS specification complete all as specified and as directed.

M&L in replacement of old unserviceable deep leaf net of medium size with 5 Mtr extension handle complete all as specified and as directed.

S&F in replacement of old unserviceable centric butterfly valves of class PN-16 and of following sizes to be fixed on the Pressure filters/MS pipes/CI pipes etc by taking down the existing unserviceable butterfly valves complete all as specified and as directed by the Engr-in-Charge.

(a) 300mm Bore

(b) 200mm Bore

(c) 150mm Bore

(d) 100mm Bore

(e) 80mm Bore

(f) 65mm Bore

S&F in replacement of old unserviceable rigid non-metallic PVC conduit of dia 20mm exclusive of boxes (junction/ terminal) but inclusive of all tees, bends, elbows, reducers, bell mouth tube ends and fixing accessories such as couplers, lock nuts, saddles, pipe hooks etc. complete all as specified and as directed.

M&L for servicing of butterfly valves of any size by removing handle, applying grease, re-fixing handle and checking seriviceability complete all as specified and as directed.

Supply & fixing in replacement of old unserviceable UPVC pipes, Sch-80 laid in trenches/open of following sizes complete all as specified and directed by Engr-in-Charge.

(a) 75 mm dia

(b) 100 mm/110 mm dia

(c) 150 mm dia

S&F in replacement of old u/s ML 4 FASD, 415 Volts relay range 45 - 75 Amps complete all as specified and directed by Engineer-in-Charge.

S&F in replacement of old u/s MCCBs 415V, 25 KA, 4 Pole, 125-160A variable thermal setting complete all as specified and as directed.

S&F in replacement of old u/s MCCBs 415V, 25 KA, 4 Pole, 160A-200A variable thermal setting complete all as specified and as directed.

S&F in replacement of old u/s MCCBs 415V, 25 KA, 4 Pole, 100-125A variable thermal setting complete all as specified and as directed.

S&F in repair MCB 4P, 10A complete all as specified and as directed.

M&L for servicing of water treatment plant of capacity 6000 LPH including cleaning, checking of complete system for trouble free functionability and replacing/servicing for the following complaints :- (a) Pre filter cleaning will be done once in three months. (b) General service will be done once in three months. (c) Membrane cleaning will be done once in six months. (d) Feed pump will be serviced once in six months. (e) High pressure pump will be serviced and repaired (repairs will be measured separately) complete all as specified and as directed by EIC. (f) Servicing of pressure gauges and pressure switch will be done (replacement of new pressure gauge will be measured separately) complete all as directed by EIC. (g) Servicing of multiport valve will be done (replacement of new multiport valve will be measured separately) complete all as directed by EIC. Notes:- 1. All consumables and replacement of minor parts/ filters/ media/ valves/ gauges / switches etc will be measured and paid separately. 2. Attending breakdown calls & necessary services shall be deemed to be included under the unit rate quoted.

Supply & fix in replacement RO membrane type 8040 hydro TFC membrane with TC Clamps 1&2 to the existing RO water treatment plant of capacity 6000LPH including taking down the unserviceable RO membranes complete all as specified and as directed.

Supply and fix dosing pipe of size 6.0mm dia for water treatment complete all as specified and as directed.

Supply & fix in replacement of pressure gauges range measuring range: 0 to 21 Kg/cm², connection: 1/2" BSP bottom accuracy: 1 % of FS, dial: white aluminium, pointer: black aluminium nominal size: 100 mm, scale: dual scale, case: stainless steel suitable for RO plant complete all as specified and as directed.

M&L for repair/rewinding of electric motor 10 HP, discharge 10 m3/hr, head- 165.20mtrs Make: Grundfos, Type: CR10-20 A-FJ-K-E-HQQE, Model No- A96766674P11415. (a) Disconnection of electric cable from the terminal box of pump set, remove the pump set from the foundation bed and transport to authorised work shop. (b) Decoupling the motor stator from pump set and taking out the burnt copper winding /fibre strip/insulating materials. (c) Clean the stator slots by CTC solution and rewind on stator slots with super enamelled copper wire of existing gauge with insulating materials/fibre strip/ varnishing and made terminal connection of fibre glass coated wire. (d) Re-assembling the pump set after stator rewinding and replacement of gland rope. (e) Transporting the pump set to the site, re-fixing on foundation channel with new bolts and nuts, apply grease and connecting electrical connections and testing complete all as specified and as directed.

M&L for replacement of bearings of 3 phase, monoblock pumpset including following services of vertically mounted motor/pump Type: CR10-20 A-FJ-K-E-HQQE, Model No- A96766674P11415 Make: Grundfoss (a) Disconnection of electric cable from the terminal box of pump set, removing the pump set from the foundation bed and transport to authorised work shop. (b) Decoupling rotor/impeller shaft from pump set. (c) Dismantling worn out ball bearing - 2 no. (d) Remitting the shaft by lathe work and welding work for correct alignment for fixing of bearing. (e) M&L for replacement of ball bearing - 2 Nos. (f) Reassembling of pump set after replacing bearings and replacement of gland rope, water seal, bushes etc. (g) Transporting the pump set to the site re-fixing on foundation channel with new bolts and nuts, apply grease and connecting electrical connections and testing complete all as specified and as directed.

Supply & lay activated carbon 900 IV in filter beds for water treatment filter complete all as specified and directed by Engr-in-Charge.

Supply & lay pebbles in the presuure filter of water treatment plant as per standards complete all as specified and directed by Engr-in-Charge.

Supply & lay filter media sand of size 8mm/5mm and fine sand in the pressure filter of water treatment plant as per standards complete all as specified and directed by Engr-in-Charge.

Supply & fix in replacement of 65nb mount filter multi port valve on all outlet sides for filtering, rinsing, backwashing with valve handle for fixing on the pressure filter of water treatment plant complete all as specified and as directed by Engr-in-Charge.

Supply & fix in replacement flow meter (0-1000 lph) complete all as specified and directed by Engr-in-Charge.

Supply & fix in replacement of jumbo wound filters complete all as specified and directed by Engr-in-Charge.

Supply & fix in replacement of jumbo spun filters complete all as specified and directed by Engr-in-Charge.

M&L for disconnecting electrical connections, taking down, carrying to work shop, repairing, rewinding including replacing burnt/non-functioning parts, bearings and other items if required and make it functional for 1 HP dozing pump of water treatment plant complete all as specified and as directed.

Supply & fix in replacement of brass high pressure valve complete all as specified and directed by Engr-in-Charge.

Supply & fix in replacement of UV lamp and choke complete all as specified and directed by Engr-in-Charge.

S&F in replacement stainless steel mechanical float & board level indicator including SS pully, aluminium pully housing, MS anchor bar, GI pipe, SS wires, red colour pointer and MS powder coated scale 3 mtr length to indicate water level in overhead/semi-underground sump up to full level of 0-3 mtr including PCC base for mounting level scale, core cutting of sumps roof and cement around the core cutting to arrest rain water entering in to sump complete all as specified and as directed.

M&L for cleaning of internal walls of MS FRP coated pressure filters and iron removal filter of size 1.2 mtr dia and 1.15 mtr height of capacity 50000 ltrs/hrs by brushing with nylon brush, using bleaching powder and cleaning of existing pipe holes including taking out old u/s filter media complete all as specified and as directed by the Engr-in- charge.

Supply & lay pebbles 4-6mm/6-12mm/25-40mm in iron removal filter beds complete all as specified and as directed by the Engr-in- charge.

Supply & lay gravels 2-6mm in iron removal filter beds complete all as specified and as directed by the Engr-in- charge.

Supply & lay quartz sand 1-2mm in filter beds complete all as specified and as directed by the Engr-in- charge.

Supply & lay MNO2 (for iron & manganese removal) in filter beds complete all as specified and as directed by the Engr-in- charge.

RASNA ENTERPRISES (BID ID -3070146)

SREEKRUPA ENTERPRISES (BID ID -3072979)

RS ENTERPRISES (BID ID -3075315)

General Engineering and Constructions (BID ID -3079336)

Gates Infra Construction Co (BID ID -3080382)