Water ResourcesWastewater

Plant Performance

To monitor the treatment process and ensure safe standards of operation, wastewater is automatically sampled around the clock at numerous strategic locations throughout the plant. Over 5,000 laboratory tests are performed annually to monitor for impurities in an on-site, state-certified laboratory.

Year 2002 — Average Value

Influent
Flow 6.4 MGD
BOD 290 mg/L
Suspended Solids 260 mg/L
Primary Effluent
BOD 182 mg/L
Suspended Solids 92 mg/L
Ferric Chloride Dosage 4.6 mg/L
Raw Sludge
Flow 25,000 gal/day
Solids 3.7% to 5.6%
Effluent
E-1 Effluent to Disposal E-1R Recycled Water
Flow 4 to 7 MGD 0.5 to 2 MGD
BOD 4 to 7 mg/L 1 to 5 mg/L
SS 5 to 12 mg/L 0.5 to 3 mg/L
TDS 580 to 670 mg/L 580 to 670 mg/L
Thickened Sludge
Flow 15,000 to 30,000 gal/day
Anaeroic Digester
Total Solids 2%
Volatile Solids 60% to 70%
Gas Produce 180,000 to 190,000 cu.ft./day