REPAIR AND MAINTENANCE OF WATER SUPPLY INSTALLATIONS INCLUDING CHLORINATION PLANTS AT NAVAL BASE AREA UNDER GE (U-II) VISAKHAPATNAM

Amount

M&L for seven stage cleaning and sterilization of inside UG sump/ Semi UG Sump/ OHT reservoir through bacteriological treatment by using govt lab approved chemical and ultra violet ray Complete all as specified and as directed for following capacity of tanks. Make : Rays cleantech or equivalent/INUS WATERTECH/SATYA ENTERPRISES or equivalent Steps for seven stages are as under First Stage is to drain out the water by using exit valve or high capacity dewatering system. Second stage is cleaning all the algae formation inside the tank by using SODIUM HYPOCHLORIDE a laboratory tested branded chemical of the company and scrubbing the walls of the tanks. Third strage is fresh water cleaning by high speed jet pump. Fourth stage and first bacteria screening is decertification by using HYDROGEN PEROXIDE a Govt Laboratory certified brannded halogen compound. Fifth stage is cleaning the floor of water tank by industrial vaccum cleaner.

Sixth stage is the second bacteriod screening and sterilizing method by using ultra voilet ray within the tank and kills all suspended bacteria. Seventh stage of cleaning and third bacteria screening is to sterilize the floor of the water tank by using laboratory certified, branded strong oxidizing agent Calcium Hypochloride and sodium hypochloride. NOTE: Company shall be submit Govt laboratory test certificate of Calcium Hypo Chloride, Sodium hypochloride, Hydrogen peroxide and fixed the sticker mentioning date of cleaaning and due date of cleaning and also provide certificate confirming the completion of sterlization of water tanks. and all the tank cleaaning and sterlization staff should be under accidental insurance coverage.

Semi UG Sump of 2.50 Lakhs Gallons Capacity

Semi UG Sump of 2.00 Lakhs gallons capacity

Semi UG Sump of 1.60/1.50 Lakhs gallons capacity

Semi UG Sump of 0.50 Lakhs gallons capacity

Semi UG Sump of 0.30/0.25 Lakhs gallons capacity

Semi UG Sump of 0.20 Lakhs gallons capacity

Semi UG Sump of 0.10 Lakhs gallons capacity

Overhead water tank of 1.50 Lakhs gallons capacity.

Overhead water tank of 1.00 Lakhs gallons capacity.

HDPE water tank of 10000 litre capacity.

M&L for collection of water sample from sources or sumps from various installation and test the sample as per IS 10500:2012 at Andhra University or any other accredited laboratory and submit the test report, complete all as specified and directed. Note:- (i) The Quoted rate shall deemed to be inclusive of collection of water at sumps or water source at different location under AOR of GE(U-II) in suitable container and submitting for testing . (ii) The aforesaid job shall be carried out at each pump house listed as under :- (a) Nausenabaugh Main pump house (02 Places), (b) MES Key Pers PH, NSB, (c) INS Circars (d) Naval Park & Amzari Park

Notes :- The quoted rate shall be inclusive of following :- (a) The Lab test shall be carried out once in a month from Andhra University lab or Govt approved lab for (i) PPM, (ii) TDS, (iii) pH value and E-Coil or thermotolerent Coliform bacteria (iv) colour and odour (v) Amonical Nitrogen, Nitrite Nitrogen, and total alkalinity and hardness as caco3 and magnasium Hardness (vi) LED containt (vii) Chromium, Arsenic, Mineral Oil and all other parameters required as per IS 10500:2012. (viii) FRC (b) The test report alomg with all details shall be submitted to department once in a month or whenever required or directed by the Users and department depend upon the situation/quality of water complete all as specified and directed by Enginner-in-charge.

Supply and fix in repair Chlorination Plant gravity feed type of capacity 0-10 Kg/ hrs consisting of panel board with copper tube, primary filter, pressure releasing valve, connection pipe including all necessary connected items, complete all as specified and directed.

Supply and fix in repair PVC Pipe of High Grade Flexible type of 20mm for Chlorine gas outlet pipe, complete all as specified and directed.

Supply only chlorine gas in 100 Kgs cylinders to gravity feed gaseous chloronome plant, complete all as specified and directed. Note :- Testing the cylinder and repairs to outlet valve of cylinders shall be the responsibility of the contractors and cost for applying mineral jelly to parts etc, deemed to be included in the cost quoted by the contractor.

Supply only CHLORINE 65%-70%(Calcium based granular disinfectant for water treatment more stable for water treatment than chlorine gas and stronger than bleaching powder and sodium hypochlorite) in 45 Kg drums, complete all as specified and as directed.

Supply only stable bleaching powder (SBP) (Calcium hypochlorite) Grade 1 , Availability Chlorine 34% Min, Stability 1/15 Max , Moisture 0.3% Max , Confirming to IS -1065, in 25 kg bag, complete all as specified and directed.

Supply only Alum crystal , complete all as specified and directed.

Supply and fix FRP Composite OHT / UG Water Tank Cover of following sizes made of standard designs conforming to IS:1726-1991, having load bearing of 2.5 TON including frame, complete all as specified and directed:-

90 cm x 90 cm

60 cm x 60 cm

45 cm x 45 cm

Supply and fixing in repair 300 mm bore water meter having dry dialing magnetic driven interchangeable spare parts, copper casing dial as per IP 68, flanged ends, complete all as specified and directed.

All as per item No. 10 of above but 200 mm bore

All as per item No. 10 of above but 150 mm bore

Dismantling the old unservicable sign board and M&L for Fully retro reflective sign board made out of 18 gauge CRCA sheet (1200mm x 900mm) with MS square/round tube 1.6 mm thick having entire surface of fully bounded with retro reflective sheeting of HTP grade Tape having pressure sensitive adhesive boards and messages as indicated cut out back ground in blue /green and matter in white color tape fix on wall/ groud including necessary fixing arrangment, complete all as specified and as directed

S&F in repair Sluice valve of following sizes of WCB, ASTM A216 Gr with flanged ends duly drilled ISI marked as per IS (14846-2000) PN - 1.6 with brass spindle and check nut including operating wheel etc. and fixed with new bolts, nuts, washers and rubber insertion packing, complete all as specified and directed:-

200 mm Dia

150 mm Dia

Supply & fix in repairs water level indicator 36" dia as per IS and including numbering with radium stickering, heavy duty float, counter weight , heavy duty driving gear nylon wire fitted in all in GI housing cutting with RCC slab and making good the slab ,painting the exposed surface with two coats of synthetic enamel over a coat of red oxide primer, complete all as specified and directed.

M & L for cleaning of vegetation by using excavator for removing bushes / thick vegetation around the pump house, installations, levelling the area without damaging the pipelines / Cable network / Pedestals of pipelines / buildings including disposal of the vegetation / debris material up to a distance not exceeding 50 m, complete all as specified and directed.

SCHEDULE OF CREDIT Note :- Amount of Rs. 9,600.00 indicated in Tender Documents as Schedule of Credit shall be deducted from the total quoted amount of BOQ.

PRAHJVAL ELECTRICALS (BID ID -3171206)

RATNA ENTERPRISES (BID ID -3170399)

MSN ENGINEERING WORKS (BID ID -3170001)

GVR CONSTRUCTIONS (BID ID -3170406)

lakshmi Engineering Works (BID ID -3171263)

Y RAMESH (BID ID -3170409)

Prasad and Suresh Constructions (BID ID -3171322)

SRI MAHALAKSHMI CONSTRUCTIONS (BID ID -3170562)