Treatment Process at a Glance


Raw water screening Two travelling screens, “fish- friendly” design 7’-8” wide each Raw water pumping Two 150-HP pumps (7.5 MGD each) Two 250-HP pumps (10 MGD each) Rapid mixing One 2-stage basin Detention time – 34 seconds Flocculation Three 4-stage basins Detention time – 30 minutes Clarification Three basins equipped with stainless steel inclined plates Chain and flight sludge collection	Filtration Ten gravity filters (Six existing/rebuilt, four new) 595 square feet each 12” sand and 31” GAC filter media Waste handling Five freeze-dry beds, 4.9 acres total plan area Two backwash waste lagoons (existing) Chemical treatment systems Chlorine dioxide (oxidant, preliminary disinfection) Sulfuric acid (raw water pH adjustment) Aluminum sulfate (primary coagulant) Polymers (coagulant aid and filter aid) Sodium hydroxide (filtered water pH adjustment, corrosion control) Chlorine (primary and residual disinfection)
PROJECT FACTS Service connections . . . . . . . . . . . . . 23,400 Population served . . . . . . . . . . . . . . .78,500 Total project cost . . . . . . . . . . . . . . . $24.22 million Sources of supply . . . . . . . . . . . . . . . .Mohawk River . . . . . . . . . . . . . . . .Stony Creek Reservoir . . . . . . . . . . . . . . . .Mohawk View Well Field Plant capacity . . . . . . . . . . . . . . . . . .30 million gal/day (40 million gal/day future)