CLEANING OF OH AND UG SUMPS, PUMP HOUSES INCL PAINTING, AREA DEVELOPMENT AND IMPROVEMENTAL WORKS AND REPAIR/MAINT OF FIRE PUMPS AND ELECT CONTROL PANELS AT BARRACKPORE UNDER GE BARRACKPORE

M&L for seven stage cleaning and sterilization inside the overhead reservoir of 150000 Gallons capacity at PH No 3 through bacteriological treatment by using TERBACK G5, TERBACK G10 , TERBACKG65 and UV RAY by involving the following seven (7) stages of cleaning process including cleaning the external surfaces, structure for all 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 mortar (1:4) max upto one Sqft 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 directed by Engr-in-Charge. 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 dewatering system. (b) Second stage is cleaning all the algae formation inside the tank removing all scale, dirt, mud inside the tank by using TERBACK G10 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-germification by using TERBACK G5 chemical complete. (e) Fifth stage is Cleaning the floor of the water tank by heavy duty industrial vacuum cleaner and sludge sucker maximum 1200W with suitable heavy duty rugged motor to make sump free of any foreign and loose particles of any nature. (f) Sixth stage is second bacteria screening and sterilization method by using UV RAYS by heavy duty UV radiation which shall have 360 degree of sterilization with in the tank to kill all suspended bacteria (The radiation shall portable and effective for sterilization of drinking water tanks for domination of floating and suspended bacteria). (g) Seventh stage of cleaning and third screening is to sterilize the floor and wall of the water tank by using laboratory certified branded strong oxidizing agent TERBAC G65 or equivalent any non toxic biodegradable 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 cost. Only electric power & water shall be supplied by MES at all stipulated rate. (iii) ''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 equipment required like safety helmets, Gumboots, safety belt, mask, safety googles and necessary insurance for 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-G5, TERBAC-G10 and TERBAC G65.(v) Cement sand mortar work more than 1 Sqft will be mesured and paid separately.(vi)Cleaning and sterilization and other tank interior work to be completed by authorized agency.

All as per serial item No 1 here in before but for overhead tank of capacity 100000 gallon (454000 ltr), at pump house No 1, 2 & 4 complete all as specified and as directed.

All as per serial item No 1 here in before but for overhead tank of capacity 50000 gallon (227000 ltr), at pump house No 5 & 6 complete all as specified and as directed.

All as per serial item No 1 here in before but for overhead tank of capacity 25000 gallon (113500 ltr), at Jafarpur range pump house complete all as specified and as directed.

All as per serial item No 1 here in before but inside semi underground sump of any depth and capacity appx 60000 gallon (272400 ltr), at MAP BGTC and MAP supply complete all as specified and as directed.

All as per serial item No 1 here in before above but inside semi underground sump of any depth and capacity 300000 gallon (1362000 ltr) at Pump house No 5 complete all as specified and as directed.

All as per serial item No 1 here in before but inside semi underground sump of any depth and capacity 200000 gallon (908000 LTR) at Pump house No 4 complete all as specified and as directed.

All as per serial item No 1 here in before but inside semi underground sump of any depth and capacity 5000 gallon (22700 ltr) at any height and any location complete all as specified and as directed.

Cleaning and removing all scale and dirt, silts etc, from tank and from mouth of circulating pipes etc for PVC tank capacity 500 & 1000 litre including written as "Tank clean on DD-MM-YYYY" on the body of the tank with white paint complete all as specified and as directed.

Cleaning and removing all scale and dirt, silts etc, from tank and from mouth of circulating pipes etc for PVC tank capacity 2000 & 5000 litre including written as "Tank clean on DD-MM-YYYY" on the body of the tank with white paint complete all as specified and as directed.