REPAIRS MAINTENENANCE AND REPLACEMENT TO DI CI GI PIPE LINES AND ALLIED WORKS OF EXTERNAL WATER SUPPLY AND CLEANING OF UNDER GROUND OVERHEAD WATER RESERVOIR SEMI UG SUMPS AND SWT INCLUDING CONNECTED WORKS IN OTM ACCN TUNIR AT NAVAL STN KARANJA

Amount

Notes : (i) The work consists of 01 job as under:- JOB (A) : TPP 2024-2025 Ser No. 89 (ii) Please refer schedule 'A' notes before quoting the tender. (iii) Amount of Schedule of Credit shall be deducted off line by the department. ITEMS FOR JOB 'A'

Exacavation in trenches n etc. 1.5m wide n exc 1.5m depth and getting out in any type of soil including trimming bottom surface to require level and shape complete all as specified and directed NOTE:- Taking up pipe with fitting,special valves ect from trench shall be measured and paid separately.

Returning , filling in including spreading, levelling , watering & well ramming in layers n.exc 25cm including making good disturbed surface to original levels complete all as specified & directed.

Removal of exacavation material to a distance n exc 50m and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified & directed.

Labour and tools for removing grass, shrubs, trimming branches of trees in water supply installation and water reservoir and shifting of debris to a distance of 50 mtr away from site complete all as specified and directed.

Taking out cast iron / ductile iron water mains (including all fittings) with spigot and socket ends and lead joints including burning out joints and recovering lead for the following complete all as specified & directed.:- Note :- Excavation and earth work required shall be measured and paid separately.

300 mm bore

250 mm bore

150 mm bore

100 mm bore

Supply, laying, jointing & testing DI-K7 class with spigot, socket and flanged, suitable for Push on rubber joint/fanged joint with internal cement mortor lining, and external zinc and black bitumen coated pipes in any lengths conforming to IS:8329-2000 including Rubber Gasket & joints as per IS:9523-2000 laid in trenches/ Road/ Ducts/ Footpath/ on wall/ on floor locations complete all as specified and directed for the following pipes:-.

300 mm bore

250 mm bore

150 mm bore

100 mm bore

Taking down existing CI specials and M&L for CI specials such as bends (any type,radius, tapers) and any type (straight,bend, increasing, decreasing,or double socket ect). Tee pieces single branch 'Y' junction double branch,cross (all sockets or socket and spigot), collars caps and plugs ect for upto 250mm bore complete all as specified and directed.

M&L for run lead joints in position for spigot socket pipe and specials including provision of all jointing materials such as pig lead,lead spun yarn/joint etc including burning out existing lead joints of CI pipes including cleaning & collecting ol lead for re use complete all as specified and directed for the following bore:-

300 mm bore pipe

250 mm bore pipe

150 mm bore pipe

100 mm bore pipe

80 mm bore pipe

Taking down existing sluice valve and S&F in position sluice valve (ISI marked) flanged and drill both ends cast iron body, heavy duty, brass spindle type PN 1.6 with and including jointing rubber gasket,nut,bolts complete all as specified and directed for the following sizes:-

300 mm bore

250 mm bore

150 mm bore

100 mm bore

80 mm bore

Demolition of unserviceable broken valve chamber of any size and M&L for construction of new wall chamber with brick masonry valve chamber 900mm x 900mm x 900mm (internal size) 15cm thick foundation using PCC (1:4:8) type D2 using (40mm graded stone augregates) 23cm thick brick walls built in CM (1:6) 10mm thick plaster in CM (1:4)on internal wall surface of chamber and external surface upto 15cm below the ground level finished even & fair, 5mm thick MS sheet cover including 40 x 40 x 6mm angle iron frame fixed on 150mm thick PCC (1:2:4) type B1using(20mm graded stone aggregate)as in coping with and including necessary use and waste of form work with and including 25mm x 6mm flat iron hold fasts, handles, hinges with locking arrangement including applying one coat of red oxide primer and two coats of synthetic enamel paint to all steel surfaces including necessary returning , filling, including desposal of surplus soil etc. complete all as specified and as directed.

S&F in repairs of old unsv 150 mm bore CI non return valve, flanged type ISI marked with by pass arrangement complete all as specified and dirrected.

S&F in repairs 100 mm bore CI non return valve, flanged type ISI marked with by pass arrangement complete all as specified and directed.

S&F in repairs 80 mm bore CI non return valve, flanged type ISI marked with by pass arrangement complete all as specified and dirrected.

S&F in repairs 50 mm more CI non return valve, flanged type ISI marked with by pass arrangement complete all as specified and directed.

M&L for MS iron frame work using MS channel, MS angle ect for structural support to pipe lines/base plate for pumps/approach ladder to over head water tanks including taking down/dismantling old one complete all as specified and dirrected. .

M&L for PCC type 1:4:8 type D2 ( using 40mm graded stone aggregate) for thrust block for supporting pipe lines including necessary form work complete all as specified and directed

S&F in repairs sump/tank FRP cover 60cmX60cm, 5 ton capacity bends to shape/with FRP frame on sides, including lifting arrangement fixed to manhole of UG sumps with grouting the frame in RCC slabe complete all as specified and directed.

Taking out unserviceable rusted steel water tubing and connection including removal from site complete all as specified and dirrected for the following sizes:-

15 mm bore

20 mm bore

25 mm bore

40 mm bore

50 mm bore

80 mm bore

Refixing old steel tubing and connections in new or old position after cleaning including all new fittings of the following size complete all as specified and directed:-

15 mm bore

20 mm bore

25 mm bore

40 mm bore

50 mm bore

Supply and laying in trenches/wall/floors GI tubing medium grade including fittings as required at site complete all as specified and directed of the following sizes:

15 mm bore

20 mm bore

25 mm bore

40 mm bore

50 mm bore

80 mm bore

M&L for repairs to CI mechanical joints suitable for CI/DI pipe with all accessories such as CI sleave, CI outer rings,rubber gaskets,GI bolt,nut,washer etc complete all as specified directed for the following size of pipes:-

300 mm bore

200/250 mm bore

150 mm bore

100 mm bore

M&L for cleaning and sterilization of inside the RCC/ Steel Underground/semi underground/Over head/Sedmentation /clear water sumps of capacity UG sump reservoir 100000 gallons through bacteriological treatment by using sulitable chemicales approved by Govt auth lab AND ULTRA VIOLET RAY complete all as specified & directed by the follwoing process :- (a) First :- Clear the top of the tank for a clean workspace and drain out the water by using exit valve or high capacity dewatering system. (b). Second :- Cleaning all the algae formation inside the tank by using a cleaning solution of one part of laboratory tested branded bleach to four part of of hot water in a clean pot/bucket and scrubbing the walls and surfaces of the tanks and clean all the fittings that will come into contact with the water. (c) Third :- Cleaning with freash water by high speed jet pump. (d). Fourth :- Bacteria screening/sterilization by using one part of laboratory tested and branded HSCH to four part of of hot water or brannded halogen compound to wash the the side wall and surfaces of the tank with the mop or with pressure machine. (e). Fifth :- Cleaning the floor of water tank by using wet type industrial vaccum cleaner. (f) Sixth :- Bacteriological screening and sterilizing method by using ultra violet ray within the tank and kills all suspended bacteria. (g) Seventh :- Cleaning and third bacteria screening is to sterilize all the surfaces of the water tank using the 100ml unscented bleach without fiber guard in a litre and let the solution on all surface of the tank for min two hrs and rinse all the surfaces by clean water and remove the rinse water by industrial wet/dry vaccume cleaner.

NOTE:-(i) Contractor shall submit government laboratory test certificate of chemical before cleaning, fix the sticker mentioning the date of cleaning & name of site and also provide certificate confirming the completion of sterilization of water tanks mentioning the name of station and date of cleaning. All the cleaning & sterilization staffs should be under accidental insurance coverage.) (ii) outlet pipe of OHT should be plugged before cleaning the OHT to avoid.entering scals and the same shall be reconnected after cleaning the OHT and the quoted rate is deemed to include for the provision . (iii) sterilization team will be comprised of experienced workers having experience in cleaning of tank (iv) contractor will be responsible for rectification of complaints occurred during cleaning the tank ie. No water in tank/over flow due to broken of float valve/ blockage to be included in quoted rate.

All as per BOQ Serial item No 1.61 above but for Semi UG sump reservoir capacity 40000 gallons through bacteriological treatment by using suitable chemicales AND ULTRA VIOLET RAY.

All as per BOQ Searial item No 1.61 above but RCC/PVC service tank upto 5000 Ltrs capacity.

All as per BOQ Searial item No 1.61 above but RCC/PVC service tank upto 10000 Ltrs capacity.

All as per BOQ Searial item No 1.61 above but for static water tank of capcity 20000 gallons but without using ultra violet rays without 6th stage complete all as specified and directed.

S&F in repairs Ball cock with Rod and Ball (low pressure and high pressure) with Epoxy coated Al Rod and HD Ball of size 20mm complete all as specified and directed.

S&F in repairs Ball cock with Rod and Ball (low pressure and high pressure) with Epoxy coated Al Rod and HD Ball of size 25mm complete all as specified and directed.

S&F in repairs Ball cock complete with Rod and Ball (low pressure and high pressure) with Epoxy coated Al Rod and HD Ball of size 40mm complete all as specified and directed..

Sagar Electricals (BID ID -3101766)

M.K Enterprises (BID ID -3099650)

Mahadev Enterprises (BID ID -3098972)

BALAJI TRADERS (BID ID -3099903)

SREE HARITHA ASSOCIATES (BID ID -3099769)

Atul Enterprises (BID ID -3102174)