Size (Peak day design capacity, gallons per day) - 100,001 - 500,000 | 9 |
Secondary Treatment - Stabilization ponds without aeration | 5 |
Disinfection - Liquid and powdered hypochlorites | 3 |
Disinfection - Dechlorination with dechlorination agents other than gas | 3 |
Effluent Discharge - Effluent aeration | 2 |