SUPPLY AND DOSING OF CHLORINE DIS-INFECTANT FOR DRINKING WATER, REPAIR/ REPLACEMENT OF DOZING PUMPS WITH ACCESSORIES ALONGWITH PETTY REPAIRS TO EXTERNAL WATER SUPPLY CI PIPE LINE LEAKAGE UNDER GE BENGDUBI MIL STN

Amount

SCHEDULE 'A'

Taking sample of water from jack well/filter house and getiing tested from PHED, Raw water test to be carried out by Directorate of PUBLIC HEALTH ENGINEERING OFFICE by collection of sample from source of water physical and chemical and BACTERIOLOGICAL ANALYSIS to be carried out in every months and report shall be submitted to Engineer-in-Charge duly signed.

Supply and dozing calcium Hypochlorite having 60% - 70% available chlorine content in granular from (calcium based granular disinfectant) for water treatment (Drinking water and swimming pool) packed in factory sealed HDPE container 45 Kgs each drum complete all as specified and as directed. Make: - As per E-in-C approved.

Supply only the following materials for daily maintenance of water supply installation :-

Supply only Bleaching powder Grade-I, IS-1065:1989 (used in drinking water), stable dry free flowing white in appearance without hard lumps and visible impurities in laminated high density polythene bags of 25 Kg scapacity of each bags. Make:- ADITYA BIRLA CHEMICALS LTD(DC) / RAMCO / GRASIM / DCM OR ANY MAKE APPROVED BY E-IN-C's BRANCH

PVC mug 1 ltrs capacity. Make- Cello

PVC bucket 20 ltrs Make- Cello

Taking down Unserviceable and defective dosing pump after disconnecting electrical connection and inlet /outlet pipe line and transpotation to workshop for repair works and repairing reassembling the dosing pump system with replacement of unserviceable parts and installing the same in the existing position after successful repair and testing compelte all as specified and directed.

Supply and fixing in repair the following spares for dosing pumps at various water supply installation including taking down of unserviceable one:-

Pump Tube Part No. MCCP207 (Set of 5 Pcs)

3/8 " white suction/Discharge tubing Part No. MAL T002

Injection Check Valve 3/8" Part No.MCINJ38 (Set of 5 Pcs)

Check valve duckbill (Pack of 5)

Weighted suction line strainer 3/8" Part No. ST138

Roller Assembly MC 3A SYD. (Set of 4 Pcs)

Shaft with impeller Part No. 042009B ,

Coil 250 V 50 Hz Part No.MP6J322

Complete 230 V 50 Hz Gear motor Part No. PM682CE Make :-Declibac or equivalent

Rotor Assy with bearings brackets and tolerance rings Part No. PMBRPL 2 Make :-Declibac or equivalent

Supply and Fixing Altoch dosing system Model ADS-PRO, item No 153120AP, Item type C, Specification:-Multi-cavity water sanitiser/ conditioning station with proportional dosing arrangement at zero discharge of the following specificatons: MOC: Non-metallic Maximum Temperature: 45degree C Operation:Power-free Automatic Dosing pattern:Proportional Capacity:100liters-200liters, Compatibility : Stequa 411 AE Refill/ Prefill Total Refill, Tank Lid must have provision for mounting dosing pump on the lidwass. Caviti esare complete with Lids. Attachements : a) Over flow Valve, b)Water Inlet Valve c) Outlet Valve (for offiline/ Automated Gravity flow), Drain Valve complete all as specified Make: Declibac Technologies Pvt Ltd/ Potter & Watts /Brio Zing.

Supply only item No S411AE, ItemType C. Item Name - STEQUA411 AE REFILL. Specification:-Chlorine tablets contained in plastic cylindrical sealed disposable sanitiser refill for disinfection of drinking water with arrangement for controlled release of disinfectantin water, suitable for operation through recommended dosing system. Replacement Indication-visual and weight variation operation type-Non Contact, Non Inhalatory, Heavy Metal Contaminants (like Mercury and Lead) inproduct media must be Below Detectable Limit (BDL) and the product must pass through Acute Toxicity test (to specially confirm non Toxicity for Mamalian cells) based on which the product must be considered safe to use from human health safety point of view and freedom from toxicity when use dindrinking water disinfection, inrecommended dosage. The Brand and Make of the Refill must be stated and certified by a laboratory/ study centre of any State University (a University established or incorporated by Provisional Actor Bya Sate Act) having infrastructural facilities to conduct the tests by above methods, confirming compliance to all the above opertional stipulations with a declaration from the laboratory, that the product is safe to use from safety point of view used for drinking water disinfectin in recommended dosage compelete all as specified. (Make: Declibac Technologies Pvt Ltd/ Potter & Watts/ Brio Zing)

Taking down Unserviceable and defective dosing pump and Supply and fixing Electronic dosing pump model 96NGQ51 high pressure single head gear motored adjustable dosing pump with accessories including lead tubing,connecting nuts,injection check valve,clay weight,and ferrules complete all as specified. Make- As per E-in-C approved

Taking down Unserviceable and perished dosing system and Supply and fixing Altoch dosing system model ADS-I consisting of 100 litre PE/FRP tank with PE/FRP lid and level gauge alongwith agitator with shaft and blade in plastic mountred on tank. Make- As per E-in-C approved.

M&L for cleaning of sewage collection sump complete and pumping out sewage from the sump and removing sludge from the bottom of the sump with the help of sewage pump including scraping internal surface mechanically or manually and applying two coats of white wash to entire sump all as directed. (A-zone, B-zone and 158 BH).

Excavation in trenches not exceeding 1.50 m wide and 1.5 mtr depth for foundation etc, not exc 10 sqm on plan and getting out in soft/loose soil complete all as specified and as directed.

Returning filling in including spreading, leveling watering well ramming in layers not exc 25cm thick complete all as specified and as directed.

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

Taking down GI pipes 50 mm dia from trenches etc all as directed

Taking down GI pipes 40 mm dia from trenches etc all as directed

Taking down GI pipes 25 mm dia from trenches/walls etc all as directed

Taking down GI pipes 20 mm dia from trenches/walls etc all as directed

M&L for 50 mm bore steel water tubing medium grade galvanised with fitting laid in trenches all as specified and directed.

M&L for 40 mm bore steel water tubing medium grade galvanised with fitting laid in trenches all as specified and directed.

M&L for 25 mm bore steel water tubing medium grade galvanised with fitting laid in trenches all as specified and directed.

M&L for 20 mm bore steel water tubing medium grade galvanised with fitting laid in trenches all as specified and directed.

Labour only for refixing steel water tubing 50 mm bore medium grade galvanised with new fitting laid in trenches/wall obtained from item No. 16 here-in-before all as directed.

Labour only for refixing steel water tubing 40 mm bore medium grade galvanised with new fitting laid in trenches/wall obtained from item No. 17 here-in-before all as directed.

Labour only for refixing steel water tubing 25 mm bore medium grade galvanised with new fitting laid in trenches/wall obtained from item No. 18 here-in-before all as directed.

Labour only for refixing steel water tubing 20 mm bore medium grade galvanised with new fitting laid in trenches/wall obtained from item No. 19 here-in-before all as directed.

Taking down unserviceable gate valve 25mm, 50mm dia complete all as directed.

S & F Gun metal gate valve size 50 mm suitable for GI pipes all as directed.

S & F Gun metal gate valve size 40 mm suitable for GI pipes all as directed.

S & F Gun metal gate valve size 25 mm suitable for GI pipes all as directed.

S & F Gun metal gate valve size 20 mm suitable for GI pipes all as directed.

Taking down unserviceable CI sluice valve 80 mm dia complete all as directed.

Taking down unserviceable CI sluice valve 100 mm dia complete all as directed.

Taking down unserviceable CI sluice valve 150 mm dia complete all as directed.

Supply & fix 80mm bore sluice valve cast iron confirming to IS : 14846 both end flanged with S/S spindle with nut class PN - 1.0 ISI marked complete with hand wheel nuts, bolts, washers & rubber gusket etc all as directed. (Make - Upadhya/Venus/Hazra/Kirloskar)

Supply & fix 100mm bore sluice valve cast iron confirming to IS : 14846 both end flanged with S/S spindle with nut class PN - 1.0 ISI marked complete with hand wheel nuts, bolts, washers & rubber gusket etc all as directed. (Make - Upadhya/Venus/Hazra/Kirloskar)

Supply & fix 150mm bore sluice valve cast iron confirming to IS : 14846 both end flanged with S/S spindle with nut class PN - 1.0 ISI marked complete with hand wheel nuts, bolts, washers & rubber gusket etc all as directed. (Make - Upadhya/Venus/Hazra/Kirloskar)

M&L for seven stage cleaning and sterilization inside the existing RCC overhead water tank of capacity 50000 gallon through bacteriological treatment by using TERBAC-G5, TERBAC-G65 and ultra violet ray at pump house at any height (as per site requirement) all directed by Engr-in-Charge including stagig Seven stage are as under:- (a) First stage is to drain out the water by using exit valve or our own high capacity dewatering system. (b) Second stage is cleaning all the algae formation inside the tank by using TERBAC G10 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 with pressure 5 PSI. (d) Fourth stage and first bacteria screening is Sterilization by using TERBAC-G5 a Laboratory certified branded halogen compound, test certificate of TERBAC-G5 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. (f) Sixth stage is the second bacteria screening and sterilizing method by using ultra violet ray Ejector covering 360 degree with in 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 by using laboratory certified branded strong oxidizing agent TERBAC- G65.Test certificate of Terbac- G65 From Government Laboratory mentioning suitability for sterilization should be submitted to the office before using for Sterilization.

(h) Cleaning of External surfaces, lid wall of tank, structure for all scales and other particle any algae, hives and any type of vegetation or any other unwanted matters, scraping of old paint and painting with two coats of cement based water proof apex paint complete all asdirected. (j) A Sticker of appropriate size & colour as directed by Engineer-in-Charge and non degradable material with printed details as under:- (i) CA No (ii) Name of Applicant (iii) Name of Contractor (iv) Coloumn for date of Cleaning & Expiry date will be written or printed on sticker by permanent marking ink. (k) Painting of angle iron ladder for OHT after scrapping of old paint by emory paper or any other means with two coat of enamelled black paint over a coat of red oxide primer including arrangement of scrap folding/ bamboo structure required for entire works. (l) Painting of raising main, distribution, wash out and overflow pipe on OHT with suitable colour coding. NOTE:- (1) CONTRACTOR WILL SUBMIT GOVERNMENT LABORATORY TEST CERTIFICATE OF TERBAC-G5, TERBAC-G65 AND ALSO PROVIDE CERTIFICATE CONFIRMING THE COMPLETION OF STERILIZATION OF WATER TANKS MENTIONING THE NAME OF STATION AND DATE OF CLEANING. (2) ) ALL THE SAFTY EQUIPEMENTS AND NECESSARY INSURANCE FOR SAFTY OF WORKER TO EXECUTE THE WORK IS RESPONSIBLE OF THE CONTRACTOR.

All as per item No 40.00 here-in-before but overhead tank capacity 40,000 gallons all as directed.

All as per item No 40.00 here-in-before but overhead tank capacity 20,000 gallons all as directed.

(Note : The Scope of Work contained in 'Sch of Credit' amounting to Rs. 27513.00 (refer Tender Srl Page No 28). The Quoted sum shall be arrived at after deducting the amount of “Sch of Credit” from the total amount of the ‘BoQ’

MS CHOWDHURY ENTERPRISE

M/S G D CONSTRUCTION