REPAIR/MAINTENANCE OF EXTERNAL WATER SUPPLY PIPE LINE CLEANING OF UG/OVER HEAD RESERVOIR IMPROVEMENT OF INSTALLATION AND ALLIED WORKS AT NAA UNDER GE (N) TEZPUR

Amount

Excavation in trenches not exceeding 1.5 Mtr wide and not exceeding 1.5 Mtr depth in soft / loose/Hard soil and getting out for removing / laying of pipe lines complete all as specified.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25 cm in soft/ loose/ hard/ dense soil complete all as specified and as directed.

Removing excavated material (soils) not exceeding 50 m and depositing where directed at a level n exc. 1.5 m above the starting point complete all as specified and as directed.

Supplying & laying in repair to trenches 100 mm nominal bore, medium grade, galvanised coated steel tube conforming to IS 1239 (Part-1): 2004 including all fittings conforming to IS 1239 (Part-2): 2011 complete all as specified and as directed.

Supplying & laying in repair to trenches 80 mm nominal bore, medium grade, galvanised coated steel tube conforming to IS 1239 (Part-1): 2004 including all fittings conforming to IS 1239 (Part-2): 2011 complete all as specified and as directed.

Supplying & laying in repair to trenches 50 mm nominal bore, medium grade, galvanised coated steel tube conforming to IS 1239 (Part-1): 2004 including all fittings conforming to IS 1239 (Part-2): 2011 complete all as specified and as directed.

Supplying & laying in repair to trenches 40 mm nominal bore, medium grade, galvanised coated steel tube conforming to IS 1239 (Part-1): 2004 including all fittings conforming to IS 1239 (Part-2): 2011 complete all as specified and as directed.

Supplying & laying in repair to walls and ceilings or laid in floors 25 mm nominal bore, medium grade, galvanised coated steel tube conforming to IS 1239 (Part-1): 2004 including all fittings conforming to IS 1239 (Part-2): 2011 complete all as specified and as directed.

Supplying & laying in repair to walls and ceilings or laid in floors 20 mm nominal bore, medium grade, galvanised coated steel tube conforming to IS 1239 (Part-1): 2004 including all fittings conforming to IS 1239 (Part-2): 2011 complete all as specified and as directed.

Supplying & laying in repair to walls and ceilings or laid in floors 15 mm nominal bore, medium grade, galvanised coated steel tube conforming to IS 1239 (Part-1): 2004 including all fittings conforming to IS 1239 (Part-2): 2011 complete all as specified and as directed.

Supplying & laying in repair of 50 mm outer dia CPVC pipe SDR 11 including plain CPVC SDR 11 fittings such as bend ,tee , elbow , union , reducer , tee reducer etc laid or fixing/clamping on floor /surface/air/wall/ complete all as specified and directed

Supplying & laying in repair of 25 mm outer dia CPVC pipe SDR 11 including plain CPVC SDR 11 fittings such as bend ,tee , elbow , union , reducer , tee reducer etc laid or fixing/clamping on floor /surface/air/wall/ complete all as specified and directed

Supplying & laying in repair of 20 mm outer dia CPVC pipe SDR 11 including plain CPVC SDR 11 fittings such as bend ,tee , elbow , union , reducer , tee reducer etc laid or fixing/clamping on floor /surface/air/wall/ complete all as specified and directed

Material and labour for fixing CPVC ball valve 50 mm bore ISI marked, conf to IS complete including taking out old u/s any type valve all as specified and directed by Engr in charge. Note: Union or long screw have to provided before fixing of ball valve if required.

Material and labour for fixing CPVC ball valve 25 mm bore ISI marked, conf to IS complete including taking out old u/s any type valve all as specified and directed by Engr in charge. Note: Union or long screw have to provided before fixing of ball valve if required.

Material and labour for fixing CPVC ball valve 20 mm bore ISI marked, conf to IS complete including taking out old u/s any type valve all as specified and directed by Engr in charge. Note: Union or long screw have to provided before fixing of ball valve if required.

Re-laying existing DI/CI pipe in trenches of 150 mm dia pipe with old/new fittings such as bends, elbows, union, tees, reducers etc; at site after discaling/cleaning of pipe (Internaly/Externally ) in existing trench or at new location including all pipe fixing arrengement all as specified & directed by Engineer -In-charge.

Re-laying existing DI/CI/PP-R pipe in trenches of 90/100/110 mm dia pipe with old/new fittings such as bends, elbows, union, tees, reducers etc; at site after discaling/cleaning of pipe (Internaly/Externally ) in existing trench or at new location including all pipe fixing arrengement all as specified & directed by Engineer -In-charge.

Supply, laying and jointing in trenches DI pipes 150 mm bore with socketed ends with EPDA/SBA rubber gasket joints centrifugally cast, class K-9, in any length laid in trenches or on floor complete including dismantling and taking up old cracked CI pipes complete all as specified and directed. Note:- Necessary DI fittings as required and Excavation / earth work etc; shall be measured and paid seperately.

Supply, laying and jointing in trenches DI pipes 100 mm bore with socketed ends with EPDA/SBA rubber gasket joints centrifugally cast, class K-9, in any length laid in trenches or on floor complete including dismantling and taking up old cracked CI pipes complete all as specified and directed. Note:- Necessary DI fittings as required and Excavation / earth work etc; shall be measured and paid seperately.

M&L in repairs for Ductile Iron bends, tapers, Tee pieces, cross, collers, caps and plugs any type, radius & angle for pipes upto 150 mm bore all as per IS - 9523:2000 complete.

Material & Labour for repairing of run lead joint for arresting water leakage of sizes 150 mm bore cast iron water mains / fittings and finishing including excavation /earth work complete all as directed.

Material & Labour for repairing of run lead joint for arresting water leakage of sizes 100 mm bore cast iron water mains / fittings and finishing including excavation /earth work complete all as directed.

Material & Labour for repairing of run lead joint for arresting water leakage of sizes 80 mm bore cast iron water mains / fittings and finishing including excavation /earth work complete all as directed.

Material & Labour only for cutting of CI/DI pipe upto 150 mm dia carefully in position for repairs or inserting fittings such as bend, tee, socket pieces, collar etc; complete all as specified and as directed.

M&L in repairs for rising stem type CI sluice valves (ISI Marked) having double flanged SS spindle for connections of nominal pressure (PN 1.6) as per IS 14846: 2000 (Reaffirmed 2010) of preferred materials, nominal size 200 mm including nuts, bolts, packing sheets, a pair of rubber gasket ISI mark, complete all as specified and as directed.

M&L in repairs for rising stem type CI sluice valves (ISI Marked) having double flanged SS spindle for connections of nominal pressure (PN 1.6) as per IS 14846: 2000 (Reaffirmed 2010) of preferred materials, nominal size 150 mm including nuts, bolts, packing sheets, a pair of rubber gasket ISI mark, complete all as specified and as directed.

M&L in repairs for rising stem type CI sluice valves (ISI Marked) having double flanged SS spindle for connections of nominal pressure (PN 1.6) as per IS 14846: 2000 (Reaffirmed 2010) of preferred materials, nominal size 100 mm including nuts, bolts, packing sheets, a pair of rubber gasket ISI mark, complete all as specified and as directed.

M&L in repairs rising stem type CI sluice valves (ISI Marked)having double flanged SS spindle for connections of nominal pressure (PN 1.6) as per IS 14846: 2000 (Reaffirmed 2010) of preferred materials, nominal size 80 mm including nuts, bolts, packing sheets, a pair of rubber gasket ISI mark. complete all as specified and as directed.

Supply and fix in replacement GM globe/gate/ball valve 50 mm bore with iron wheel head, screwed both ends for iron/PPR pipes, ISI marked, conf to IS complete all as specified and directed by Engr in charge.

Supply and fix in replacement 40 mm Gun metal globe /ball/ gate valves with iron wheel head screwed both ends for GI pipe and fixed to pipe complete all as specified and directed.

upply and fix in replacement GM globe/gate/ball valve 25 mm bore with iron wheel head, screwed both ends for iron/PPR pipes, ISI marked, conf to IS complete all as specified and directed by Engr in charge.

Supply and fix in replacement 20 mm Gun metal globe /ball/ gate valves with iron wheel head screwed both ends for GI pipe and fixed to pipe complete all as specified and directed.

Material and labour for horizontal boring under roads/path for insertion of pipes upto 150 mm bore by manual drilling complete all as specified and as directed.

M & L for Rectifing defects on water supply, pumping/supply mains GI/CI/DI/PP-R alongwith fittings/valves of any sizes 15 mm to 50 mm complete removing, cleaning and refixing including replacement of the unserviceable parts and restoring water supply all as directed by Engineer-in-Charge. Note:- (i) Rate for any fittings and other items for rectifying defects shall be measured and paid under respective item of schedule. (ii) All tools required for carrying out the works and jointing of PP-R pipe shall be deemed to be including in the quoted rate. (iii) The above work shall be carried out on requirement basis on complaints received in the MES service centre.

Supply only in repair/repalacement of GI Union of 20 mm dia size (ISI marked) complete all as specified and as directed.

Supply only in repair/repalacement of GI Union of 25 mm dia size (ISI marked) complete all as specified and as directed.

Supply only in repair/repalacement of GI Union of 50 mm dia size (ISI marked) complete all as specified and as directed.

Supply only in repair/repalacement of GI socket of 20 mm dia size (ISI marked) complete all as specified and as directed.

Supply only in repair/repalacement of GI socket of 25 mm dia size (ISI marked) complete all as specified and as directed.

Supply only in repair/repalacement of GI socket of 50 mm dia size (ISI marked) complete all as specified and as directed.

Supply only in repair/repalacement of GI elbow of 20 mm dia size (ISI marked) complete all as specified and as directed.

Supply only in repair/repalacement of GI elbow of 25 mm dia size (ISI marked) complete all as specified and as directed.

Supply only in repair/repalacement of GI elbow of 50 mm dia size (ISI marked) complete all as specified and as directed.

Supply only in repair/repalacement of GI Tee of 20 mm dia size (ISI marked) complete all as specified and as directed.

Supply only in repair/repalacement of GI Tee of 25 mm dia size (ISI marked) complete all as specified and as directed.

Supply only in repair/repalacement of GI Tee of 50 mm dia size (ISI marked) complete all as specified and as directed.

Supply only in repair/repalacement of GI Nipple threaded of 20 mm dia size (ISI marked) complete all as specified and as directed.

Supply only in repair/repalacement of GI Nipple threaded of 25 mm dia size (ISI marked) complete all as specified and as directed.

Supply only in repair/repalacement of GI Tank Nipple threaded of 20 mm dia size (ISI marked) complete all as specified and as directed.

Supply only in repair/repalacement of GI Tank Nipple threaded of 25 mm dia size (ISI marked) complete all as specified and as directed.

M&L for seven stage cleaning and sterilization of inside the RCC / Steel Underground/semi underground/Over head/Sedmentation/clear water sumps of capacity 1.00 lakh Gln RCC over head tank through bacteriological treatment by using TERBAC G5/Inchor-5/NB-10/ TERBAC-G-65/ Inoxi-60/NB-69 AND ULTRA VIOLET RAY. Make: rays Cleantech/ Inus watertech/ satya enterprise. Seven stages are as:- (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 TERBAC G10/ Inoxi-60/NB-69 a laboratory tested branded chemical of the company ans scrubbing the walls of the tanks. (c) Third strage is fresh water cleaning by high speed jet pump. (d) Fourth stage and first bacteria screening is decertification by using TERBAC-G5/ Inohor-5/NB-10 a Govt Laboratory certified brannded halogen compound. (e) Fifth stage is cleaning the floor of water tank by industrial vaccum cleaner. (f) Sixth stage is the second bacterio screening and sterilizing method by using ultra violet ray within the tnk 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 agent TERBAC-G65/Inoxi-60/NB-69 . NOTE:-(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 oht should be plugged before cleaning the oht to avoid.entering scals and the same shell be reconnected after cleaning the oht and the quoted rate is deemed to include for the rovision . (iii) sterilization team will be comprised of at least 30% members who are minimum 03 monts certificate holder in water tanks sterilization. (iv) 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. note:-the work shall be carried through specilized agency rays cleantech/ inus watertech/ satya enterprise.

M&L for seven stage cleaning and sterilization of inside the RCC / Steel Underground/semi underground/Over head/Sedmentation/clear water sumps of capacity 0.25 lakh Gln RCC over head tank through bacteriological treatment by using TERBAC G5/Inchor-5/NB-10/ TERBAC-G-65/ Inoxi-60/NB-69 AND ULTRA VIOLET RAY. Make: rays Cleantech/ Inus watertech/ satya enterprise. Seven stages are as:- (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 TERBAC G10/ Inoxi-60/NB-69 a laboratory tested branded chemical of the company ans scrubbing the walls of the tanks. (c) Third strage is fresh water cleaning by high speed jet pump. (d) Fourth stage and first bacteria screening is decertification by using TERBAC-G5/ Inohor-5/NB-10 a Govt Laboratory certified brannded halogen compound. (e) Fifth stage is cleaning the floor of water tank by industrial vaccum cleaner. (f) Sixth stage is the second bacterio screening and sterilizing method by using ultra violet ray within the tnk 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 agent TERBAC-G65/Inoxi-60/NB-69 . NOTE:-(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 oht should be plugged before cleaning the oht to avoid.entering scals and the same shell be reconnected after cleaning the oht and the quoted rate is deemed to include for the rovision . (iii) sterilization team will be comprised of at least 30% members who are minimum 03 monts certificate holder in water tanks sterilization. (iv) 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. note:-the work shall be carried through specilized agency rays cleantech/ inus watertech/ satya enterprise.

M&L for seven stage cleaning and sterilization of inside the RCC / Steel Underground/semi underground/Over head/Sedmentation/clear water sumps of capacity 0.10 lakh Gln Steel over head tank through bacteriological treatment by using TERBAC G5/Inchor-5/NB-10/ TERBAC-G-65/ Inoxi-60/NB-69 AND ULTRA VIOLET RAY. Make: rays Cleantech/ Inus watertech/ satya enterprise. Seven stages are as:- (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 TERBAC G10/ Inoxi-60/NB-69 a laboratory tested branded chemical of the company ans scrubbing the walls of the tanks. (c) Third strage is fresh water cleaning by high speed jet pump. (d) Fourth stage and first bacteria screening is decertification by using TERBAC-G5/ Inohor-5/NB-10 a Govt Laboratory certified brannded halogen compound. (e) Fifth stage is cleaning the floor of water tank by industrial vaccum cleaner. (f) Sixth stage is the second bacterio screening and sterilizing method by using ultra violet ray within the tnk 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 agent TERBAC-G65/Inoxi-60/NB-69 . NOTE:-(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 oht should be plugged before cleaning the oht to avoid.entering scals and the same shell be reconnected after cleaning the oht and the quoted rate is deemed to include for the rovision . (iii) sterilization team will be comprised of at least 30% members who are minimum 03 monts certificate holder in water tanks sterilization. (iv) 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. note:-the work shall be carried through specilized agency rays cleantech/ inus watertech/ satya enterprise.

M&L for seven stage cleaning and sterilization of inside the RCC / Steel Underground/semi underground/Over head/Sedmentation/clear water sumps of capacity 0.40 lakh Gln Sedimentation tank through bacteriological treatment by using TERBAC G5/Inchor-5/NB-10/ TERBAC-G-65/ Inoxi-60/NB-69 AND ULTRA VIOLET RAY. Make: rays Cleantech/ Inus watertech/ satya enterprise. Seven stages are as:- (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 TERBAC G10/ Inoxi-60/NB-69 a laboratory tested branded chemical of the company ans scrubbing the walls of the tanks. (c) Third strage is fresh water cleaning by high speed jet pump. (d) Fourth stage and first bacteria screening is decertification by using TERBAC-G5/ Inohor-5/NB-10 a Govt Laboratory certified brannded halogen compound. (e) Fifth stage is cleaning the floor of water tank by industrial vaccum cleaner. (f) Sixth stage is the second bacterio screening and sterilizing method by using ultra violet ray within the tnk 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 agent TERBAC-G65/Inoxi-60/NB-69 . NOTE:-(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 oht should be plugged before cleaning the oht to avoid.entering scals and the same shell be reconnected after cleaning the oht and the quoted rate is deemed to include for the rovision . (iii) sterilization team will be comprised of at least 30% members who are minimum 03 monts certificate holder in water tanks sterilization. (iv) 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. note:-the work shall be carried through specilized agency rays cleantech/ inus watertech/ satya enterprise.

M&L for seven stage cleaning and sterilization of inside the RCC / Steel Underground/semi underground/Over head/Sedmentation/clear water sumps of capacity 0.20 lakh Gln Sedimentation tank through bacteriological treatment by using TERBAC G5/Inchor-5/NB-10/ TERBAC-G-65/ Inoxi-60/NB-69 AND ULTRA VIOLET RAY. Make: rays Cleantech/ Inus watertech/ satya enterprise. Seven stages are as:- (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 TERBAC G10/ Inoxi-60/NB-69 a laboratory tested branded chemical of the company ans scrubbing the walls of the tanks. (c) Third strage is fresh water cleaning by high speed jet pump. (d) Fourth stage and first bacteria screening is decertification by using TERBAC-G5/ Inohor-5/NB-10 a Govt Laboratory certified brannded halogen compound. (e) Fifth stage is cleaning the floor of water tank by industrial vaccum cleaner. (f) Sixth stage is the second bacterio screening and sterilizing method by using ultra violet ray within the tnk 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 agent TERBAC-G65/Inoxi-60/NB-69 . NOTE:-(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 oht should be plugged before cleaning the oht to avoid.entering scals and the same shell be reconnected after cleaning the oht and the quoted rate is deemed to include for the rovision . (iii) sterilization team will be comprised of at least 30% members who are minimum 03 monts certificate holder in water tanks sterilization. (iv) 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. note:-the work shall be carried through specilized agency rays cleantech/ inus watertech/ satya enterprise.

M&L for seven stage cleaning and sterilization of inside the RCC / Steel Underground/semi underground/Over head/Sedmentation/clear water sumps of capacity 0.40 lakh Clear water tank through bacteriological treatment by using TERBAC G5/Inchor-5/NB-10/ TERBAC-G-65/ Inoxi-60/NB-69 AND ULTRA VIOLET RAY. Make: rays Cleantech/ Inus watertech/ satya enterprise. Seven stages are as:- (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 TERBAC G10/ Inoxi-60/NB-69 a laboratory tested branded chemical of the company ans scrubbing the walls of the tanks. (c) Third strage is fresh water cleaning by high speed jet pump. (d) Fourth stage and first bacteria screening is decertification by using TERBAC-G5/ Inohor-5/NB-10 a Govt Laboratory certified brannded halogen compound. (e) Fifth stage is cleaning the floor of water tank by industrial vaccum cleaner. (f) Sixth stage is the second bacterio screening and sterilizing method by using ultra violet ray within the tnk 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 agent TERBAC-G65/Inoxi-60/NB-69 . NOTE:-(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 oht should be plugged before cleaning the oht to avoid.entering scals and the same shell be reconnected after cleaning the oht and the quoted rate is deemed to include for the rovision . (iii) sterilization team will be comprised of at least 30% members who are minimum 03 monts certificate holder in water tanks sterilization. (iv) 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. note:-the work shall be carried through specilized agency rays cleantech/ inus watertech/ satya enterprise.

M&L for seven stage cleaning and sterilization of inside the RCC / Steel Underground/semi underground/Over head/Sedmentation/clear water sumps of capacity 0.50 lakh Clear water tank through bacteriological treatment by using TERBAC G5/Inchor-5/NB-10/ TERBAC-G-65/ Inoxi-60/NB-69 AND ULTRA VIOLET RAY. Make: rays Cleantech/ Inus watertech/ satya enterprise. Seven stages are as:- (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 TERBAC G10/ Inoxi-60/NB-69 a laboratory tested branded chemical of the company ans scrubbing the walls of the tanks. (c) Third strage is fresh water cleaning by high speed jet pump. (d) Fourth stage and first bacteria screening is decertification by using TERBAC-G5/ Inohor-5/NB-10 a Govt Laboratory certified brannded halogen compound. (e) Fifth stage is cleaning the floor of water tank by industrial vaccum cleaner. (f) Sixth stage is the second bacterio screening and sterilizing method by using ultra violet ray within the tnk 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 agent TERBAC-G65/Inoxi-60/NB-69 . NOTE:-(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 oht should be plugged before cleaning the oht to avoid.entering scals and the same shell be reconnected after cleaning the oht and the quoted rate is deemed to include for the rovision . (iii) sterilization team will be comprised of at least 30% members who are minimum 03 monts certificate holder in water tanks sterilization. (iv) 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. note:-the work shall be carried through specilized agency rays cleantech/ inus watertech/ satya enterprise.

Material and Labour for repairing of leakage / cleaning of CI/DI/MS main distribution pipe line by cutting or opening at any location , with the help of machine / manually to repairing the leakage or blockage of main pipe line and reconnecting the pipe after repair complete all as specified and directed by engr -in-Charge. Note :- Fitting and jointing material such as lead /welding/flanged /rubber joint and excavation returning filling etc will be included in the quoted rate.

Supply only of Calcium hypochlorite granular form with chlorine content of 65% to 70% in 45 kgs packing for pre chlorination and post chlorination for dosing/filling in drinking water as per following generic specification complete all as specified and as directed. (a) Available Chlorine min - 65% by mass (b) Particle size (passing through 1.70 mm IS sieve) min - 99 % by mass (c) Water insoluble matter max - 6% (d) Calcium Hydroxide max - 4% (e) Sodium Chloride max - 15% (f) Loss of chloride on basis of available chloride max - 1/15

Supply only Poly Aluminium Chloride (PAC) inorganic soluble polymer raw water flocculants powder in 25 Kg bags conforming to the following specifications: - (a) Bulk Density/specific Gravity at 20 Degree Celcius: 0.75 + 0.10 (b) PH Value of aqueous solution (w/v): 3.5 – 5.0 (1%) (c) Chloride content (w/w): 31.0% + 2.0% (d) Sulphate content: 10 % (Max) (e) Basicity: 40.0 + 5.0 (f) Mercury & Lead: Not Desirable.

Supply only of Non ferric Alum Grade-I in 20 Kgs pieces Commercial for dosing/filling in drinking water as per standard parameters as specified and rate of dosing as per standard parameters complete all as specified and as directed.

Supply only of Soda Ash Powder for dosing/filling in drinking water as per standard parameters as specified and rate of dosing as per standard parameters conforming complete all as specified and as directed

Supply only Chlorine test kit (400 no of test) with all testing fitment and solution complete all as specified and directed.

Supply only pH test kit (400 no of test) with all testing fitment and solution complete all as specified and directed.

Supply only Iron test kit(200 no of test) with all testing fitment and solution complete all as specified and directed.

Supply only Hardness test kit(200 no of test) with all testing fitment and solution complete all as specified and directed.

M&L for testing of water sample from OHT's/ sumps from various installation as speciefied and directed by the Engineer-in-Charge and test the sample as per IS 10500:2012 at PHE lab of ASSAm Govt. (NABL accredited) or any other NABL accredited laboratory and submit the test report to Engineer-in-Charge Note: Quoted rate is deemed to be inclusive of collection of water at sumps/OHT's at different location in suitable container and submit for testing . The above specified job shall be carried out at each pump house as under :- (a) PH No. 7A (b) PH No. 7B(c) PH No. 8 (d) PH no. 9 (e)PH No. 10 - 5 Nos.

M&L for painting (type and quality of paint recommended and approved by engineer-in charge) to raising/delivery/wash out /over flow pipe(any type any size) of RCC O/H reservoiror , steel over head reservoiror as per colors code with one coat of synthetic enamel paint from ground level to bottom of the dome of the tank complete all as directed by Engineer-In-charge for Pump house No - 7A, 7B, 8, 9 & 10.

M/S SEWAK SINGH (BID ID -3403491)

M/S RUSTAM ALI (BID ID -3403768)