Simple Ways To Enhance Your Water Treatment ... - Ohiowater.org

Design-year Winter CT values can be met at
a Cl 2 Residual of only 1.8 mg/L
• CT CALCULATIONS
– Worst-Case Conditions:
• Water Temperature (C) = 4
• Max pH Value > 9
• Cl2 residual (mg/L) =1.8
– Max CT Value Required – Winter (mg/L-min) = 63.3
• CT values achieved at 40 MGD (Design-year,
Pk.-hour production for Lima‟s 30-MGD WTP):
– Clearwells in Series: 64.7 mg/L-min
– Clearwells in Parallel: 63.3 mg/L-min