Size (Peak day design capacity, gallons per day) - less than 10,000 | 1 |
Water Supply Source - Groundwater | 2 |
Pretreatment - Roughing filter: Non-backwashable strainer or filter | 2 |
Aeration / Ion Exchange - Aeration: Mechanical or diffused | 3 |
Activated Carbon - Granular activated carbon contactors | 4 |
Oxidation - Potassium permanganate | 4 |
Coagulation - Primary coagulant | 5 |
Flocculation - Hydraulic flocculator | 4 |
Sedimentation - Tube settlers | 2 |
Filtration - Membrane filtration | 8 |
Disinfection - Liquid and powdered hypochlorites | 3 |
Sludge Treatment - Discharge to sewer or other off-site treatment | 0 |
Storage - Tank capacity less than 50,000 gallons | 1 |
Storage - Pressure tanks | 0 |