CLEANING OF OHT UG SUMPS SEDIMENTATION TANKS AND WATER STORAGE TANKS REPAIRS TO DISTRIBUTION NETWORK INCLUDING CERTAIN SUPPLY OF WATER DISINFECTANT CHEMICALS AT ARC CHARBATIA

Amount

M&L for cleaning and degermination inside RCC/ UG/Semi /Sedimentation tank/areation channel in seven stages including cleaning and sterization through bacteriological treatment by using Terbac G5/Inchlor-5/NB-10, Terbac G 65/Inoxi-60/NB-69 and Ultra violet ray for the following UG/Semi underground/Sedimentation tank/areation channel at any height (as per site requirement), including suitable staging/scaffolding. Seven stage are as under follows complete all as specified and directed :- (a) First stage is to drain out the water by using high capacity pump of 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 / as recommended by Engineer-in-Charge. (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 rank completely.

(d) Fourth stage and first bacteria screening is Sterilization by using by using Terbac G5/Inchlor-5/NB-10 a Laboratory certified branded halogen compound/ E-in-C's Branch approved chemical as recommended by Engineer-in-Charge. Test certificate of chemical from government laboratory mentioning suitability for sterilization should be submitted to the office before using for sterilization. (e) Fifth stage is cleaning the floor of the water tank by heavy duty industrial vacuum cleaner and sludge sucker having maximum 1200 W with suitable heavy duty rugged motor and free from any foreign and loose particles of any nature. (f) Sixth stage is the second bacteria screening and sterilization method by suing ultraviolet ray by heavy duty UV radiation which shall have 360 degree of sterilization with in the tank to kill all suspended bacteria (The radiation shall protable and effective for sterilization of drinking water tanks for dimination of floating and suspended bacteria). (g) Seventh stage of cleaning and third bacteria screening is to sterilize the floor, Roof and wall of the water tank by using laboratory certified branded strong oxidizing agernt Terbac G 65/Inoxi-60/NB-69

Note:- (i) Company will submit Govt Laboratory Test Certificate of Terbac G5/Inchlor-5/NB-10, Terbac G 65/Inoxi-60/NB-69. (ii) Entire T&P should be arranged by Contractor and safety of workmen is also contractor's resposibility. (iii) Date of Cleaning should be mentioned over the outer surface by synthetic enamelled paint with letter not less than 100mm height. (iv) The Contractor will not be allowed to do the work more than One day inside of each OH tank/UG Sump/Sedimentation tank/Areation channel to prevent any interruption of water supply to the users. (v) The Contractor will be responsible for any rectification of complaints occur during cleaning of tank. (vi) Contrator deemed to have visited the site/filteration unit for understanding the scope of work.(vii) The work shall be carried out by Specialzed Agency.

UG Sump 4 Lakh Gallons

OHT 0.5 Lakh Gallons

OHT 1.0 Lakh Gallons

UG Sump 150000 Ltrs

UG Sump 70000 Ltrs

UG Sump 60000 Ltrs

Semi UG circular flocculator tank 550000 Ltrs

Rectangular UG Sedimentation tank 170000 Ltrs

Rectangular UG Sedimentation tank 90000 Ltrs

Areation Channel (of 1.5 MGD filteration plant)

Areation Channel (of 0.5 MGD filteration plant)

M&L for cleaning and degermination inside water storage tanks in seven stages including cleaning and sterization through bacteriological treatment by using Terbac G5/Inchlor-5/NB-10, Terbac G 65/Inoxi-60/NB-69 and Ultra violet ray for the following water storage tanks at any height (as per site requirement), including suitable staging/scaffolding. Seven stage are as under follows complete all as specified and directed :- (a) First stage is to drain out the water by using high capacity pump of 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 / as recommended by Engineer-in-Charge. (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 rank completely. (d) Fourth stage and first bacteria screening is Sterilization by using by using Terbac G5/Inchlor-5/NB-10 a Laboratory certified branded halogen compound/ E-in-C's Branch approved chemical as recommended by Engineer-in-Charge. Test certificate of chemical from government laboratory mentioning suitability for sterilization should be submitted to the office before using for sterilization. (e) Fifth stage is cleaning the floor of the water storage tank by heavy duty industrial vacuum cleaner.

(f) Sixth stage is the second bacteria screening and sterilization method by suing ultraviolet ray by heavy duty UV radiation which shall have 360 degree of sterilization with in the tank to kill all suspended bacteria (The radiation shall protable and effective for sterilization of drinking water tanks for dimination of floating and suspended bacteria). (g) Seventh stage of cleaning and third bacteria screening is to sterilize the floor, Roof and wall of the water storage tank by using laboratory certified branded strong oxidizing agernt Terbac G 65/Inoxi-60/NB-69

Note:- (i) Company will submit Govt Laboratory Test Certificate of Terbac G5/Inchlor-5/NB-10, Terbac G 65/Inoxi-60/NB-69. (ii) Entire T&P should be arranged by Contractor and safety of workmen is also contractor's resposibility. (iii) Date of Cleaning should be mentioned over the outer surface by synthetic enamelled paint, size of letter as directed by Engr-in-Charge (iv) The Contractor will not be allowed to do the work more than half day inside of each water storage tank to prevent any interruption of water supply to the users.

Exc 250 but not exceeding 500 Ltr.

Exc 500 but n. exc 1000 Ltrs

Exc 1000 but n. exc 2000 Ltrs

S & F in repair ball valves, high pressure of PTMT with epoxy coated aluminium rod and high density plastic ball screwed for iron pipe 20mm bore / dia (Min weight 455Gm), complete all as specified and directed .

S & F in repair ball valves, high pressure of PTMT with epoxy coated aluminium rod and high density plastic ball screwed for iron pipe 25mm bore / dia (Min weight 455Gm), complete all as specified and directed .

S& F in repairs PVC water Tank covers of capacity exc 250 ltrs but n.exc 500 Ltrs including repairs of hinges & locking arrangement complete all as specified and directed

S& F in repairs PVC water Tank covers of capacity exc 500 ltrs but n.exc 1000 Ltrs including repairs of hinges & locking arrangement complete all as specified and directed

S& F in repairs PVC water Tank covers of capacity exc 1000 ltrs but n.exc 2000 Ltrs including repairs of hinges & locking arrangement complete all as specified and directed

S &F in replacement rotational moulded polyethylene water storage tank of 500L capacity (cylindrical / vertical with closed top) complete hoisted and fixed in position, with lid, with lid, tounge nipple for inlet, outlet connections etc. , overflow complete all as specified in section 18 of SSR Part I 1991 including fly nut complete tounge nipple for inlet, outlet connections etc. fixed in repairs, complete all as specified and directed

S &F in replacement rotational moulded polyethylene water storage tank of 1000L capacity (cylindrical / vertical with closed top) complete hoisted and fixed in position, with lid, with lid, tounge nipple for inlet, outlet connections etc. , overflow complete all as specified in section 18 of SSR Part I 1991 including fly nut complete tounge nipple for inlet, outlet connections etc. fixed in repairs, complete all as specified and directed

S &F in replacement rotational moulded polyethylene water storage tank of 2000L capacity (cylindrical / vertical with closed top) complete hoisted and fixed in position, with lid, with lid, tounge nipple for inlet, outlet connections etc, overflow complete all as specified in section 18 of SSR Part I 1991 including fly nut complete tounge nipple for inlet, outlet connections etc. fixed in repairs, complete all as specified and directed

Supply only Stable Bleaching powder conforming to IS specifications 1065 (Part -2)/2019 Grade 1, minimum available chlorine percentage lay by mass 34% + 1% in 25 Kg polythene HDPE bags duly marked date of manufacturing and batch No. complete all as specified and directed. Make: Lion/Vikram/Shriram (DCM) or equivalent make approved by E-in-C's Branch New Delhi. Note:- The contractor shall deliver quantity of material in intervals/periodicity, as per site requirement and as per direction of Engr-in-Charge

Supply only alumina ferric (Grade-IV) suitable for purification of drinking water in the form of solid lumps/slabs from the manufacturer having valid BIS certificate as specified in table 1 of IS: 299-2012 ammendment No 01 Feb 2015 complete all as specified and directed . Make: As per approval of GE. Note-Each block of alum supplied by the contractor should have a marking indicating weight of the slab and manufacturing date and be in proper packing. The contractor shall submit the lab test report from any Govt approved lab of the alumina ferric supplied. Note: 1. Name and Gde of the material with words suitable for water purification for drinking purpose. 2. Name of the manufacturer 3. Date of the manufacture. 4 Mass of the material in package. 5. Batch No with date. 6.The contractor shall deliver quantity of material in intervals/periodicity, as per site requirement and as per direction of Engr-in-Charge

Supply only hydrated lime suitable for water treatment grade C complete all as specified and directed.Make: as per approval of GE. Note: The contractor shall deliver quantity of material immediately in intervals/periodicity, as per site requirement and complete all as specified and directed

Supply only Calcium Hypo Chlorite (Chlorination Chemical) granular in factory sealed HDPE container (45 Kg each) having chlorination concentration level 65 to 70% complete all as specified and directed. Make: As approved by E-in-C's Branch New Delhi or as approved by GE. Note: (i) The contractor shall deliver quantity of material in intervals/periodicity, as per site requirement and as per direction of Engr-in-Charge. (ii) The Contractor shall produce test certificate from manufacturer's (OEM) or reputed approved lab. (iii) The Calcium based granular disinfectant shall be brought at site in sealed container of appropiate capacity duly marked with date of manufacturing and batch No and expiry date.

Supply, install, testing and commissioning of Heavy duty double tank chemical Dosing Pump system consisting of service tank 150 ltrs capacity with dosing system plunger type suitable to inject solution upto 25 LPH working pressure 10 Kg/cm2 comprising dosing pump coupled with three phase electric motor of capacity 0.5 HP,1440 RPM assembly with agitator in one motor, agitator with SS sweep blade duly FRP coated, complete unit mounted on heavy duty MS fabric frame duly anti corrosive paint complete and preparation tank 150 ltrs conical type comprising 0.25 HP three phase motor 990 RPM with SS sweep blade complete with half inch chemical garde PVC NRV for main line along with control panel for dosing pump made of powder coated MS fabricated box consisting of LED indicator, digital voltmeter, ammeter, single phase preventor, high voltage low voltage protection complete all as specified and as directed. Make: As approved by E-in-C's Branch New Delhi or as approved by GE. Note: The manufacturer of dosing pump system will give the warranty of one year from the date of installation/commissioning of dosing system.

Taking down old UNSV CPVC pipe of different bore from wall, ceiling and floor complete all as specified and directed .

Supplying and laying of CPVC pipes 25mm SDR 11 & Plain CPVC SDR 11 fittings on walls/ceiling or laying in floors complete all as specified and directed.

Supplying and laying of CPVC pipes 20 mm SDR 11 & Plain CPVC SDR 11 fittings on walls/ceiling or laying in floors complete all as specified and directed.

S & F in repairs 20 mm Gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe and fixed, complete all as specified and directed .

S & F in repairs 25 mm Gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe and fixed, complete all as specified and directed .

Taking down 25 mm bore steel water tubing and connection from wall, ceiling and floor complete all as per directed including cleaning for refixing or removal from site as in repairs complete all as specified and directed

Taking down 20 mm bore steel water tubing and connection from wall, ceiling and floor complete all as per directed including cleaning for refixing or removal from site as in repairs complete all as specified and directed

Supply, lay, connect and test GI tubing ,medium grade with all fitting, laid in trenches, or fixed to walls with clamps, floors, ceiling or laid in trenches etc. complete of 25 mm bore complete all as specified and directed

Supply, lay, connect and test GI tubing ,medium grade with all fitting, laid in trenches, or fixed to walls with clamps, floors, ceiling or laid in trenches etc. complete of 20 mm bore complete all as specified and directed

Supply and fix in replacement 20 mm plug type bib taps, cast iron, screwed for iron pipe and fixed complete all as specified and directed.

M&L for repair/rectification of leakage to water supply distribution lines 15 mm dia to 25 mm dia GI tubing by necessary excavation, returning/filling as required, tightening of loose joints of union, elbow, socket etc, threading if required including replacement of GI union/socket/nipple as required complete all as specified and directed

All as per serial item No.26 above but for GI tubing of 40 mm dia to 50 mm dia

M&L for cutting, drilling and tapping CI/GI water mains (in position) for branch connections of the internal dia 20mm of CI/GI pipes complete all as specified and directed.

S B ENTERPRISE