REPAIR/ IMPROVEMENT OF EXT W/S PIPELINE, VALVES, NRV, CLEANING/SANITIZATION OF UG/OH WATER RESERVOIR, UG SUMPS INCL TEE SECTION, BENDS , ELBOW AND CONNECTED ITEMS IN NOFRA, NAVY NAGAR, CHUNABHATTI, RMSF AND RESIDENTIAL AREA UNDER AGE E/M-II KARANJA

Material and Labour for seven stage cleaning and sterilization of inside the RCC/ Steel Underground/semi underground/Over head/Sedimentation/clear water sumps UG sump reservoir of capacity 50000 gallons through bacteriological treatment by using suitable chemicals approved by Govt auth lab and ULTRA VIOLET RAY, through specialized agency Rays Cleantech/INUS watertech/Satya Enterprises. Seven stages are as under plants :- (a) First Stage is to drain out the water by using exit valve or high capacity dewatering system. (b) Second stage is cleaning all the algae formation inside the tank by using a laboratory tested branded chemical of the company and scrubbing the walls of the tanks. (c) Third stage is fresh water cleaning by high speed jet pump. (d) Fourth stage and first bacteria screening is disinfection by using branded halogen compound. (e) Fifth stage is cleaning the floor of water tank by industrial vacuum cleaner. (f) Sixth stage is the second bacteria screening and sterilizing method by using ultra violet ray within 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. Notes:- (i) Company will submit government laboratory test certificate of terbac-g5/inchor-5/nb-10, terbac-g65/ inoxii-60/nb-69, 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 overhead tank should be plugged before cleaning the overhead tank to avoid entering scales and the same shell be reconnected after cleaning the overhead tank and the quoted rate is deemed to include for the 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 the tank i.e. No water in tank/over flow due to broken of float valve/ blockage to be included in quoted rate. (v) The above work will be either carried out in above seven stages or as directed and specified by Engr-in- charge.

-Ditto- all as per item No 1.00 here-in-before but for inside UG sump reservoir capacity 40000 gallons through bacteriological treatment by using suitable chemicals approved by Govt auth lab, through specialized agency AND ULTRA VIOLET RAY.

-Ditto- all as per item No 1.00 here-in-before but for inside UG sump reservoir capacity 20000 gallons through bacteriological treatment by using suitable chemicals approved by Govt auth lab, thorough specialized agency AND ULTRA VIOLET RAY.

-Ditto- all as per item No 1.00 here-in-before but for inside UG sump reservoir capacity 10000 gallons through bacteriological treatment by using suitable chemicals approved by Govt auth lab, thorough specialized agency AND ULTRA VIOLET RAY.

-Ditto- all as per item No 1.00 here-in-before but for inside UG sump reservoir capacity 100000 gallons through bacteriological treatment by using suitable chemicals approved by Govt auth lab, thorough specialized agency AND ULTRA VIOLET RAY.

-Ditto- all as per item No 1.00 here-in-before but for inside the RCC/ PVC water storage tank of capacity upto 5000 Litre through bacteriological treatment by using suitable chemicals approved by Govt auth lab, thorough specialized agency AND ULTRA VIOLET RAY.

Excavation in trenches n etc. 1.5m wide n exc 1.5m depth and getting out in hard/dense soil including trimming bottom surface to require level and shape all as specified and directed by Engg-in-charge for laying of pipes. NOTE:- Taking up pipe with fitting, special valves etc from trench shall be measured and paid separately.

Returning , filling in including spreading, levelling , watering & well ramming in layers not exc 25cm including making good disturbed surface to original levels, complete all as specified and directed by Engr-in-Charge.

Removal of excavation material to a distance not exc 50m and depositing where directed at a level not exceeding 1.5m above the starting point, complete all as specified and directed by Engr-in-Charge.

Labour and tools for removing grass, shrubs, trimming branches of trees in water supply installation and water reservoir and along the pipe line both side and shifting of debris to a distance of 50 metre away from site, complete all as specified and directed by Engr-in-Charge.