![]() Water pumped into the mains is not being used and empties into the storage reservoir that holds up to 19.5 million gallons of water. Four high service pumps then take water from this structure and pump it into various areas of the water distribution system. After final stabilization, the water is filtered and flows by gravity into a one million gallon circular storage reservoir. Water then flows through two separate basins where carbon dioxide is added for stabilization, hydro-fluosilic acid is added to fluoridate the water and ammonium sulfate combines with chlorine to form chloramines. Water next flows to a 72' x 92' rectangular solids basin where lime (calcium oxide) is added along with sodium aluminate to soften the water. Activated carbon is added as required for taste and odor removal. Primary clarification includes the addition of ferric chloride, a cationic polymer and chlorine for initial disinfection. This basin has a dividing wall that allows it to function as two independent basins each capable of treating 12 m.g.d. and pump into a three level dual settling basin south of the pump station. The main pumping station is presently located at Front & Maine Street.įour electric low service raw water pumps take water from the Mississippi River through two 36" intake pipes with a rated capacity of 30 m.g.d. A virtually inexhaustible water supply is available from the Mississippi River, one of the largest sources of water in the United States. The existing treatment plant is rated at 18 million gallons per day capacity and affords the capability to meet the future needs of our rapidly expanding city. Local Landmarks and Buildings in Local Historic Districtsĭata on Purification Plant and Quincy Water Supply.Grant Program for Sewer Overflow Improvements.Washington Theater Redevelopment Commission.Quincy Economic Development Loan Committee.Quincy Central Business District Revolving Loan Committee.Quincy Area Convention & Visitor's Bureau.9-1-1 Joint Emergency Telephone System Board (ETSB).
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