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Wastewater Utility

Facility Statistics


  • Actual average daily flow - 3,000,000 gallons per day
  • Design average daily flow - 4,630,000 gallons per day
  • Design average wet weather flow – 7,910,000 gallons per day
  • Design peak wet weather flow – 28,000,000 gallons per day
  • Population design (year 2020) – 29,370
  • Maximum loadings per day:
    • BOD5 – 11,000 lb/day
    • Total Suspended Solids (TSS) – 11,000 lb/day
    • Nitrogen – 1,550 lb/day
    • Phosphorus – 350 lb/day
  • Receiving stream – Mill Creek
  • Permit classification – limited aquatic life
    • Permit Limits:
      • CBOD5:
        • Weekly Average – 25 mg/L or Part Per Million(PPM)
        • Monthly Average – 16 mg/L or PPM
      • Total Suspended Solids:
        • Weekly Average – 30 mg/L or PPM
        • Monthly Average – 20 mg/L or PPM
      • Phosphorus:
        • Monthly Average – 1.0 mg/L or PPM
      • Dissolved Oxygen:
        • Daily Minimum – 4.0 mg/L or PPM
      • Copper:
        • 42 ug/L or PPB
      • PH Range – 6.0 – 9.0 standard units
  • Influent Pumps:
    • (3) Screw pumps with ability to pump 15 MGD each or 10,500 gallons per minute
  • Preliminary Treatment:
    • (2) Fine screens with 1/8” openings and wash press
  • Oxidation Ditch:
    • (2) 400 ft x 65 ft tanks which hold 2,750,000 gallons each
  • Final Clarifiers:
    • (3) 100 ft diameter x 15 ft SWD circular clarifiers which hold 881,000 gallons each
  • Biosolids Storage Tanks:
    • (2) 120 ft diameter x 24 ft SWD circular concrete tank which holds 2,030,000 gallons
  • Gravity Belt Thickener
    • (1) 3 meter Gravity Belt Thickener
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