REPAIR/MAINT OF CHLORINATION PLANTS, ELECTRICAL PANELS,VALVE AND VALVE PITS AND CONNECTED ITEMS IN ALL PUMP HOUSE UNDER GE GUWAHATI

Supply, installation, testing and commissioning of dosing machine in replacement having Automatic, compact, universal, multi-function chlorine dosing system with the following specifications: 1. Suitable for both solutions and light slurries. 2. Constructed with aggressive chemical-resistant materials. 3. Mono-compartment 100-litre water treatment station with proportional dose adjustment options. 4. Powerful motorised fluid delivery drive with dry-run protection. 5. Off-gassing solutions and dry-run prevention. 6. Efficient electro-mechanical blend module to prevent vortex formation. 7. Flow release up to 50 LPH independent of back pressure up to 8 bar. 8. Continuous chlorine release with accurate output reproducibility. 9. Complete with all accessories, fittings, mounting arrangement, electrical connections, testing and commissioning as directed.

Testing of Raw water at main pump house, Narangi pump house and personal PH (Inlet water) Following parameters is tested on regular basis from any recognised Govt lab or authorised NABL Certified lab and Testing certificate is submitted to GE Guwahati Complete as directed by Engr in charge. Generl: Colour, Odour, Temperature, pH, Electrical Conductivity (EC), Dissolved Oxygen (DO), Turbidity, Total Dissolved Solid (TDS), Nutrients : NO3, PO4 Demand Parameter: Bio-chemical oxygen Demand (BOD), Chemical Oxygen Demand (COD) Major ions: Sodium (NA+), Potassium (K+), Calcium (Ca++), Magnesium (Mg++), Carbonate (CO3), Bicarbonate (HCO3), Magnesium (Mg++), Carbonte (CO3), Bicarbonate (HCO3), Chlorie (CL), Sulphate (SO4-), Other inorganic: Other location specific parameeters Microbiological: Faecal Coliforms/Thermotolerent coliforms Metals: s,Cd,Hg,Zn, Cr,Pb,Ni,Fe,Mn, Ag, Cu,Se. Raw water at the intake point/Jack well for surface water sources at the qtrly basis complete all as specified and directed.

Testing of Raw water at main pump house, Narangi pump house and personal PH (Inlet water) Following parameters is tested on regular basis from any recognised Govt lab or authorised NABL Certified lab and Testing certificate is submitted to GE Guwahati Complete as directed by Engr in charge. Generl: Colour, Odour, Temperature, pH, Electrical Conductivity (EC), Dissolved Oxygen (DO), Turbidity, Total Dissolved Solid (TDS), Nutrients : NO3 Demand Parameter: Bio-chemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD) Major ions: Sodium (NA+), Potassium (K+), Calcium (Ca++), Magnesium (Mg++), Carbonate (CO3), Bicarbonate (HCO3), Chloride (Cl), Sulphate (SO4-). Other inorganic: Other location specific parameters Microbiological: Faecal Coliforms/ Thermotolerent coliforms Quarterly sampling complete all as specified and directed.

Testing of Treated water at main pump house,Narangi pump house and personal PH (Outlet water) Following parameters is tested on regular basis from any recognised Govt lab or authorised NABL Certified lab and Testing certificate is submitted to GE Guwahati Complete as directed by Engr in charge. Generl: Colour, Odour, Temperature, pH, Electrical Conductivity (EC), Dissolved Oxygen (DO), Turbidity, Total Dissolved Solid (TDS), Nutrients : NO3, PO4 Demand Parameter: Bio-chemical oxygen Demand (BOD), Chemical Oxygen Demand (COD) Major ions: Sodium (NA+), Potassium (K+), Calcium (Ca++), Magnesium (Mg++), Carbonate (CO3), Bicarbonate (HCO3), Magnesium (Mg++), Carbonte (CO3), Bicarbonate (HCO3), Chlorie (CL), Sulphate (SO4-), Other inorganic: Other location specific parameeters Microbiological: Faecal Coliforms/Thermotolerent coliforms Metals: s,Cd,Hg,Zn,Cr,Pb,Ni,Fe,Mn, Ag, Cu,Se. water samples are to be collected from water teatment plant and at various point within the distribution system, including at the consumer end at the qtrly basis complete all as specified and directed.

Testing of Treated water at at main pump house,Narangi pump house and personal PH (Outlet water) Following parameters is tested on regular basis from any recognised Govt lab or authorised NABL Certified lab and Testing certificate is submitted to GE Guwahati Complete as directed by Engr in charge. Generl: Colour, Odour, Temperature, pH, Electrical Conductivity (EC), Dissolved Oxygen (DO), Turbidity, Total Dissolved Solid (TDS), Nutrients : NO3 Demand Parameter: Bio-chemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD) Major ions: Sodium (NA+), Potassium (K+), Calcium (Ca++), Magnesium (Mg++), Carbonate (CO3), Bicarbonate (HCO3), Chloride (Cl), Sulphate (SO4-). Other inorganic: Other location specific parameters Microbiological: Faecal Coliforms/Thermotolerent coliforms. water samples are to be collected from water teatment plant and at various point within the distribution system, including at the consumer end Quarterly sampling complete all as specified and directed.

M&L for complete removal of old existing filter media (sand, silex and pebbles) from filtration plant of personal pump house and throughly cleaning washing the inner surface of filtrarion bed and PVC pipe line (lateral and header pipes) by removing all dust particles by means of soda, bleaching powder, etc by using steel wire brushes or steel scrapers complete all as directed.

M&L for filter media Sand of size 0.45mm to 0.70mm spreading in layers size wise with filter media as per sample approved by Engr in charge complete all as directed.

M&L for filter media of Fine silex of size 1mm to 2mm spreading in layers size wise with filter media as per sample approved by GE complete all as directed.

M&L for filter media of Coarse silex of size 3mm to 4mm spreading in layers size wise with filter media as per sample approved by GE complete all as directed.

M&L for filter media of Pebbles of size 15mm to 20mm spreading in layers size wise with filter media as per sample approved by GE complete all as directed.