8991 CLEANING OF OH UG RESERVOIRS AND BUILDING SERVICE TANKS INCLUDING REPLACEMENT OF WATER TANK AT NAVAL DOCKYARD UNDER GE NW KUNJALI

Amount

M&L for seven stage cleaning and sterilization inside the Underground/semi underground sump of Upto 500000 Gln/750000 Gln capacity capacity throughbacterological by using TERBAC G5, TERBAC G10, TERBAC G65, SODIUM HYPOCHLORIDE 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/eaternal 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 all as specified and as directed . Seven (7) stages of cleaning process (a) First stage is to draining out the reserved water by using exit valve or high capacity pump of dewareing 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/ SODIUM HYPOCHLORIDE 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 completeley. (d) Fourth stage is first bacteria screening i.e. de-gernification by using TERBAC G5/ TANK SAN 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 heaby 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 with in 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)

item No.1 continued.. (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/ POTTASIUM PERMANGANITE 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 pathogens. Note:- (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-G%, TERBAC-G10 and TERBAC G65, SODIUM HYPOCHLORIDE, TANK SAN, POTTASIUM PERMANGANITE before cleaning, fix the sticker mentioning the date of cleaning & name of site and also provide certificate confirming the completion of sterilization of sump mentioning the name of station and date of cleaning. all the cleaning & sterilization staffs should be under accidental insurance coverage. (v) Sterilization team will be comprised of at least 30% members who are minimum 03 months certificate holder in water tanks sterilization. (vi) 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. (vii) The work shall be carried through specilized agency like Rays cleantech/ Inus watertech/ Satya enterprise/Supreme cleaning agency or equivalent as approved by GE. (viii) Certificate of approved agency for cleaning and sterilization work carried out shall be submitted by the bidder with completion certificate after satisfactory completion of the work.

All as per item no. 1 but capacity 325000 Gln/350000 Gln capacity complete all as specified and as directed.

All as per item no. 1 but capacity 100000 Gln / 150000Gln capacity complete all as specified and as directed.

All as per item no. 1 but capacity 50000 Gln / 35000 Gln capacity complete all as specified and as directed.

All as per item no. 1 but capacity 18000 Gln /25000 Gln capacity complete all as specified and as directed.

All as per item no. 1 but capacity 9000 Gln /10000 Gln/12500 Gln capacity complete all as specified and as directed.

All as per item no. 1 but over head resevoir tank of capacity 100000 Gln upto 70 ft height complete all as specified and as directed.

All as per item no. 1 but over head resevoir tank of capacity 20000 Gln upto 70 ft height complete all as specified and as directed.

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/Inchlor-5/NB-10/ Sodium hypochloride, 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 dewareing 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/Sodium hypochloride/ Inchlor-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/Tank san/Inchor-5/ NB-10, a Laboratory certified branded halogen compound, test certificate of TerbacG5/Tank san/ 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/ Pottasium permanganate. Note:-(i) Test certificate of Terbac G65/Inoxi-60/NB-69/Sodium hypochloride/Tank san/ Pottasium permanganite from Government Laboratory mentioning suitability for sterilization should be submitted to the office before using for Sterilization.

item No.9 continued.. (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) Sterilization team will be comprised of at least 30% members who are minimum 03 months certificate holder in water tanks sterilization. (iv) 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. (v) The work shall be carried through specilized agency Rays cleantech/ Inus watertech/ Satya enterprise/Supreme cleaning agency or equivalent as approved by GE.. (vi) Certificate of approved agency for cleaning and sterilization work carried shall be submitted by the bidder with completion certifacte after satisfactory completion of the work.

All as per item no. 9 but Capacity from 1000 TO 1999 Ltrs complete all as specified and as directed.

All as per item no. 9 but Capacity from 2000 TO 4999 Ltrs complete all as specified and as directed.

All as per item no. 9 but Capacity from 5000 TO 9999 Ltrs complete all as specified and as directed.

All as per item no. 9 but Capacity from 10000 Ltrs and above complete all as specified and as directed.

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 primer all as complete and directed .

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 .

Dismantling the damaged / unserviceable step ladder at any height 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.

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.

Supply and fix CI both end flanged type Sluice valve (ISI Marked ) of 300mm dia PN16 with iron wheel head, brass seat,screwed both ends for iron pipe for following sizes complete all as specified and directed .

all as per item No. 18 above but of 250 mm dia complete all as specified and directed.

all as per item No. 18 above but of 150 mm dia complete all as specified and directed.

all as per item No. 18 above but of 100 mm dia complete all as specified and directed.

all as per item No. 18 above but of 80 mm dia complete all as specified and directed.

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 specified and directed.

All as per item No. 23 above but of size 80 mm dia complete all as specified and as directed.

All as per item No. 6 above but of size 50 mm dia complete all as specified and as directed.

All as per item No. 6 above but of size 40 mm dia complete all as specified and as directed.

All as per item No. 6 above but of size 25 mm dia complete all as specified and as directed.

Supply and fix Float valve of 25mm complete all as specified and directed.

All as per item No. 28 above but for 40mm complete all as specified and directed.

All as per item No. 28 above but for 50mm complete all as specified and directed.

S&F 3 layers cylindrical heavy duty PVC water storage Tank hosting 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 (a) 5000 Ltr capacity

All as per item No. 31 above but for 3000 Ltr capacity complete all as specified and directed.

All as per item No. 31 above but for 2000 Ltr capacity complete all as specified and directed.

All as per item No. 31 above but for1000 Ltr Capacity complete all as specified and directed.

All as per item No. 31 above but for 10000 Ltr Capacity complete all as specified and directed.

N.S.ENTERPRISES (BID ID -3061858)

siddharth and company (BID ID -3067841)

shubham construction (BID ID -3069166)

SHRI SAI ENTERPRISES (BID ID -3065910)

Rama Construction Co (BID ID -3069018)

M/S V N ENTERPRISES (BID ID -3069071)