8954A CLEANING OF OH UG RESERVOIRS AND BUILDING SERVICE TANKS INCLUDING REPLACEMENT OF WATER TANKS AT NAVAL DOCKYARD UNDER GE NW KUNJALI

Amount

Excavation in trenches not exceeding 1.5 mtr wide and not exceeding 1.5 mtr in depth for foundation/laying of pipe etc and getting out in hard dense soil complete all as specified.

Returning filling in including spreading, leveling, watering and well ramming in layers not exceeding 25 cm thick as in soil complete all as specified .

Removing surplus excavated soil to a distance not exceeding 50 m and deposited where directed complete all as specified.

Material and labour for brick masonary valve chamber of size 0.90 m x 0.90 m x 0.90 m (internal size) and cover including earth work complete all as specified and comprising of the following. (a) 150 mm thick PCC 1:4:8 type D2 using 40 mm graded stone aggregate for foundation. (b) Brick work 230 mm thick built in CM 1:4. (c) 15 mm thick rendering in CM(1:4) internally and externally to exposed surface of brick work including 150 mm below ground level. (d) 100 mm thick coping in PCC 1:2:4 type B1 using 20 mm graded stone aggregate. (e) MS covers made out of 5 mm thick MS plate with double hinges, fixed MS angle iron frame made out of MS angle iron 40 x 40 x5 mm thick including 150 mm long hold fast made out of MS flat iron of size 25 x 4 mm embedded in PCC coping MS covers shall be provided with suitable hand grip and suitable locking arrangement all as directed. (f) All MS surfaces shall ,be painted with two coats of synthetic enamel paint over a coat of red oxide primer complete all as specified.

All as per item No 4 herein before but of size 0. 60 m x 0 .60m x 0.60 m Internal size

Supply and fix in repairs GI tubes medium grade of 100 mm dia complete with all fittings (like; union, tee, bend, elbow, reducer, socket) to be fixed on wall and ceilings or laid in floors/trenches complete.

All as per item No. 6 above but of size 80 mm dia

All as per item No. 6 above but of size 50 mm dia

All as per item No. 6 above but of size 40 mm dia

All as per item No. 6 above but of size 25 mm dia

Supply and fix in repairs gun metal gate valve, with iron wheel head screwed both ends for iron pipe of 80 mm bore incl provn of union, nipples, sockets etc.

All as per item No.11 above but of 50 mm bore

All as per item No.11 above but of 40 mm bore

All as per item No 11 above but of 25 mm bore

Supply and fix ball valve in repairs brass high pressure with polythene float and fly nut of 50 mm dia complete screwed to iron or brass ferrule

All as per item No. 15 above but of size 40 mm dia

All as per item No. 15 above but of size 25 mm dia

All as per item No. 15 above but of size 20 mm dia

Supply and fix Brass foot valve heavy duty 50 mm/65 mm dia brass with all accessories Make: Normex, Zoloto or equivalent.

All as per item No 19 above but 80/100 mm dia.

All as per item No. 19 above but 150 mm dia.

M&L for seven stage cleaning and sterilization inside the Underground/semi underground sump through bacterological by using TERBAC G5/ INCHLOR-5/ NB-10, TERBAC-G65/INOXI-60/ NB-69 and UV RAY by involving the following seven (7) stages of cleaning process including cleaning the external surfaces, structure for scales and other particles any algae, hives and any type of vegetation or any other type of unwanted matters and repairs to internal/external cracks, small holes with cement and sand motar (1:4) and applying one coat of white wash to internal surface when became dry and two coat of white wash to external surface complete of following capacity all as specified and as directed by Engr-in-Charge. Seven stages of cleaning process :- (a) First stage is to draining out the reserved water by using exit valve or high capacity pump of dewatering system. (b) Second stage is cleaning all the algae formation inside the tank removing all the scale,dirt,mud inside the tank by using TERBAC G10/ INCHLOR – 5/NB-10 Chemical complete. (c) Third stage is scrubbing the walls and floor with mechanized scrubber & fresh water cleaning by high speed jet pump (rotary & flat) to remove all scaling, algae and other formed particles on internal surfaces of the tank completely. (d) Fourth stage is first bacteria screening i.e. de-gernification by using TERBAC G5/ INCHLOR – 5/NB-10 chemical complete. (e) Fifth stage is cleaning the floors of the water tank by heavy duty industrial vaccum cleaner and sludge sucker maximum 1200W with suitable heavy duty rugged motor to make the sump free of any foreign and loose particles of any nature. (f) Sixth stage is the second bacteria screening and sterilisation method by using UV RAYS by heavy duty UV radiation which shall have 360 degree of sterlization within the tank and kills all suspended bacteria.(The radiation shall portable and effective for sterlization of drinking water tanks for dimination of floating and suspended bacteria) (g) Seventh stage of cleaning and third bacteria screening is to sterilize the floor and wall of the water tank by using laboratory certified branded strong oxidizing agent TERBAC G65/ INOXI-60 / NB-69 for third battery screening or equivalent any non toxic bio-degradable eco-friendly anti-bacterial agent certified by a Govt approved laboratory to disinfect the tank from all harmful pathogans.ote:-(i) Entire T&P should be arranged by the contractor at their own.Only electric power & water shall be supplied by MES at all stipulated rate.(ii) "Date of cleaning" should be written over the outer surface of tank by synthetic enamel paint with lettering not less than 100mm height. (iii) All safety equipments required like safety helmets, Gumboots, safety belt, mask, safety googles and necessary insurance of safety of working labours to execute the work is responsibility of the contractor and rates quoted shall be deemed to be inclusive of the same.(iv) Contractor will submit Govt laboratory test certificate of TERBAC- G10, TERBAC G65 AND INOXI-60/ NB-69.

All as per item no. 22 but capacity Upto 600000 ltr/132000 Gln capacity

All as per item no. 22 but capacity Upto 400000 ltr / 88000Gln capacity

All as per item no. 22 but capacity Upto 225000 ltr / 49500 Gln capacity

All as per item no. 22 but capacity Upto 100000 ltr /22000 Gln capacity

All as per item no. 22 but capacity Upto 45000 ltr /9900 Gln capacity of open well upto 70 ft depth with 18ft dia

M&L for cleaning and degermination inside of RCC/PVC water storage tanks capacity not exceeding 500 Ltr of any description and in any position comprising following seven stage cleaning and sterilization of water tanks through bacteriological treatment by using Trebac G5/INCHOR-5/NB-10/ Terbac G65/Inoxi-60/NB-69 and ultra violet rays complete all as specified and as directed. (a) First stage is to drain out the water by using exit valve or our own high capacity dewatering systems or any other suitable method approved by Engr-in-Charge. (b) Second stage is cleaning all the algae formation inside the tank by using Terbac G 10/INCHOR-5/NB-10, a laboratory tested barnded chemical of the company and scrubbing the walls of the tanks. (c) Third stage is fresh water cleaning by high speed jet pump with pressure 5 PSL. (d) Fourth stage and first bacteria screening is Sterilization by using Terbac G5/INCHOR-5/ NB-10, a Laboratory certified branded halogen compound, test certificate of TerbacG5/INCHOR-5/ NB-10, from government laboratory mentioning suitability for sterilization. (e) Fifth stage is cleaning the floors of the water tank by heavy duty industrial vaccum cleaner. (f) Sixth stage is the second bacteria screening and sterilizing method by using ultra violet ray Ejector covering 360 degree with in the tank and kills all suspended bacteria. (g) Seventh stage of cleaning and third bacteria screening is to sterilize the floor of the water tank by using laboratory certified branded strong oxidizing agend TerbacG65/Inoxi-60/NB-69 Note:-(i) Test certificate of Terbac G65/Inoxi-60/NB-69 from Government Laboratory mentioning suitability for sterilization should be submitted to the office before using for Sterilization. (ii) Outlet pipe of OHT should be plugged before cleaning the OHT to avoid entering scale and the same shall be reconnected after cleaning the OHT and the quoted rate is deemed to include for this provision. (iii) Contractor will be responsible for rectification of complaints occurred during cleaning of tank i.e. No water in tank/ Over flow due to broken of float valve/blockage of Outlet lines due to silt and rectification cost will be deemed to be included in quoted rate. Note: The work shall be carried through specilized agency Rays Cleantech ( Mob -7278790295) or other agency as approved by GE.

All as per item no. 28 but Capacity from 1000 TO 1999 Ltrs

All as per item no. 28 but Capacity from 2000 TO 4999 Ltrs

All as per item no. 28 but Capacity from 5000 TO 9999 Ltrs

All as per item no. 28 but Capacity from 10000 Ltrs and above

Supply and fix in replacement of MS cover made out of 5 mm thick MS sheet with double hinges and suitable handle locking arrengement etc complete including two coats of synthetic enamel paint and one coat of red oxide primer all as complete and directed by Engr-in-Charge.

Material and labour for painting to water supply tubing and connected items like ladders/ water points etc. any dia after preparation of old painted surface by proper cleaning and then applying two coat of synthetic enamelled paint as per existing colour code or as directed by Engineer-in-Charge

Dismantling the damaged / unserviceable step ladder and design, fabricate supply & fix / install step ladder made out of angle iron, solid iron/hollow rod/MS flats of suitable size with length as required as per site requirement and with the step gap of minimum 10 inch including welding , cutting, drilling etc matching grouting arrangement including making good to the disturbed surfaces and painting the step ladder with the two coats of synthetic enamelled paint over a coat of metal primer complete all as specified and directed by Engineer-in-Charge.

Demolation of PCC/ inter locking tiles/ Road cutting for laying of Pipe and making good after laying the Pipe with PCC 1:2:4 to match the existng surface up to and including 15cm in depth and n.exc 0.6m width complete all as specified and directed.

Taking out old u/s Sluice valve with iron wheel head including all connected accessories of following sizes :-

150 mm dia

100 mm dia

80 mm dia

Supply and fix Sluice valve (ISI Marked ) PN16 with iron wheel head, screwed both ends for iron pipe for following sizes complete all as specified and directed by Engr-in-Charge . Make Kirlosker/Zoloto/ Leader or equivalent.

150 mm dia

100 mm dia

80 mm dia

Supply and fix in repair Direct-on-Line Starters 5 TO 7.5 HP, 3-Ph motor make L&T or equivalent in Siemens, Havells

Supply and fix in repair Direct-on-Line Starters 10 TO 12.5 HP, 3-Ph motor make L&T or equivalent in Siemens, Havells

Supply and fix in repair Fully automatic SD starter 15 TO 22.5 HP, 3-Ph motor make L&T or equivalent in Siemens, Havells

Supply and fix in repair Fully automatic SD Starters 25 HP TO 40 hP, 3-Ph motor make L&T or equivalent in Siemens, Havells

Supply and fix in repair Soft Starters 200 HP, 3-Ph motor make L&T or equivalent in Siemens, Havells, Schneider, Legrand

Supply only cast iron pipes with spigot and socket centrifugally cast class `LA' in any length laid in trenches of following sizes. MAKE:-LAMCO INDUSTRIES LTD/ ELECTRO STEEL. Abiove quoted rates include lead joint

300mm bore

200mm bore

150mm bore

100mm bore

80mm bore

Taking down DI/CI special, corroded MS sections and S&F angle iron frame of size 50 x 50 x 6 mm of valve chamber, over head tank, UG sump including necessary fabrication work with any size of channel, angle, beam complete all as specified

S&F PVC water storage Tank hoisting and fixing in position at any location removing existing distmantling RCC/PCC OHT and new foundation making as well as disconnecting all incoming & out going connection , provision of new tank fittings & connecting it at existing position up to 50 mm GI Pipe connection complete all as specified and directed of following capacity :-

5000 Ltr capacity

3000 Ltr capacity

2000 Ltr capacity

1000 Ltr Capacity

10000 Ltr Capacity

MAHESH ENTERPRISES

Rama Construction Co

Shetty Construction Co

AGRAWAL ASSOCIATES