REPAIR/REPLACEMENT/MAINTENANCE OF OVER HEAD PVC, RCC, SMC, PANEL TANKS AND CLEANING OF PVC, RCC, SMC WATER STORAGE TANKS CONNECTED MS WORKS AT RS AREA UNDER GE(NW) NAVYNAGAR, COLABA MUMBAI

M&L for Cleaning of PVC/RCC water storage tank in low and high rising buildings(G+14) by mechanical high pressure spray and remove all foreign matter completly and soaking out the water/dirt with a high pressure wet vaccum pump and removing spoils out side of MD land and complete all as specified and as directed by Engineer-in-charge. Note: Rate include the painting of two coats of enamel paint with visible colour about date of cleaning and due date for cleaning complete all as specified. OH Tank of capacity 5000 Litres

All as per item no 1.00 above but OH Tank of capacity 3000 Litres

All as per item no 1.00 above OH Tank of capacity 10000 Litres

All as per item no 1.00 above OH Tank of capacity 15000 Litres

All as per item no 1.00 above OH Tank of capacity 2000 Litres

All as per item no 1.00 above OH Tank of capacity 1000 Litres

M&L for cleaning and sterilization of inside surface of RCC/ Steel Underground/semi underground/Over head/ Sedmentation/ clear water sumps of capacity UG sump reservoir 12,00,000Litres capacity using seven stage water tank sterilization as under :- (a). First Stage : Drain out the water by using exit valve or high capacity dewatering system. (b). Second stage : Cleaning all the algae formation inside the tank by using TERBAC G10/ Inoxi-60/NB-69 a laboratory tested branded chemical (Test certificate of TERBAC-65/INOXI-60/NB -69 from Govt laboratory mentioning suitability for sterilization should be submitted before sterilization) and scrubbing the walls of the tanks. (c). Third strage : Fresh water cleaning by high speed jet pump. (d). Fourth stage: First bacteria screening is sterilization by using TERBAC-G5/ Inohor-5/NB-10 brannded halogen compound (Test certificate of TERBAC-65 Inohor -51 /NB10 from Govt laboratory mentioning suitability for sterilization should be submitted before sterilization). (e). Fifth stage: Cleaning the floor of water tank by industrial vaccum cleaner. (f) Sixth stage :Second bacteria screening and sterilizing by using u Litresa violet ray ejector covering 360 degree within the tank for killing all suspended bacteria. 2.00 Each Job 150000.00 1.02 (g) Seventh stage : Cleaning and third bacteria screening to sterilize the floor of the water tank using TERBAC G-65 (Test certificate of TERBAC-65 from Govt laboratory mentioning suitability for sterilization should be submitted before sterilization) complete all as specified & durected. NOTE :- The quoted rate is deemed to include for the following :- (i) All cleaning staff shall wear safety helmets, gumboots, safety belts when entering the tanks. (ii) Safety beltsshall be invariabily worn during climbing of stage mounted tanks & getting down in UG sump. (iii) Safety googels shall be worn during spraying of TERBAC-65 & G-65 1.03

All as per item No.07 above but Under Ground sump reservior 90,000 Litres capacity

All as per item No.07 above but Under Ground sump reservior 2,18,000 Litres capacity

All as per item No.07 above but Under Ground sump reservior 2,38,000 Litres capacity