| Size (Peak day design capacity, gallons per day) - less than 10,000 | 1 |
| Water Supply Source - Groundwater | 2 |
| Adjustment and Corrosion Control - Limestone or calcite contactor | 2 |
| Activated Carbon - Granular activated carbon contactors | 4 |
| Oxidation - Hypochlorite solution | 3 |
| Filtration - Cartridge or bag filters - staged, multiple units | 4 |
| Filtration - Granular media | 8 |
| Sludge Treatment - Discharge to on-site pond, septic tank, or lagoon | 2 |
| Filtration - Membrane filtration integrated system | 12 |
| Storage - Tank capacity less than 50,000 gallons | 1 |