Communities Served: Waterville, Winslow, Fairfield, Vassalboro, Benton, Oakland
Population Served: 22,500
Ownership: Quasi-municipal
Personnel: 27
Cost to customer per 100 cubic feet (748 gallons): $1.474
Price per gallon: 0.2 cents, $0.002
Funding Sources for Operations: User fees though rates
Fiscal year: January 1 to December 31
Projected water revenues (2006): $5,045,374
Number of pumping stations: 4
Number of water storage facilities: 6
Number of hydrants: 633
Number of residential services: 7838
Metered commercial services: 968
Miles of main: 171.83
Sizes of main: 2″ – 36″
Storage facility capacity: 17.4 million gallons total
Cook Hill Tank: Steel 2.5 million gallons
2nd Rangeway Tank: Steel 0.90 million gallons
Ridge Road Reservoir Tanks (2): Concrete 6.0 million gallons each
Treatment Plant Clearwells (2): Concrete 1 million gallons each
Watershed Lands: 32 square miles
Raw Water Source: China Lake
China Lake capacity: 31.7 billion gallons
China Lake surface area: 6.1 square miles
Maximum/mean depth: 85 feet/ 28 feet
Annual flushing rate: 65% or 20.6 billion gallons
Average yearly precipitation: 42 inches
Average yearly KWD demand: 1.265 billion gallons
Average daily KWD demand: 3.47 million gallons
Average yearly % of yield: 4.0 %
Treatment plant operations began: August 1993
Control system used: SCADA-Turbitrol CPC Microfloc
Chemicals used: Aluminum Sulfate; Hydrochloric acid; Cationic polymer; Sodium hypochlorite; Hydrofluosilicic acid; Polyphosphate; Sodium hydroxide
Clarification process: Upflow – solids – contact
Filtration process: Conventional high rate
Filter media: Granular activated carbon Mixed media
Disinfection process: Sodium Hypochlorite
Disinfection application: Post filtration/clearwell
Sludge collection method: Recycle lagoon
Sludge dewatering method: Air dry and freeze/thaw
Sludge disposal method: To be determined