| Reservoirs/Wells | Water Source | Surface Area (km2) | Capacity (m3) | Average Raw Water Demand* |
| Griggs | Scioto River | 1.5 | 5.3 × 106 | 6.4 × 104 |
| O’Shaughnessy | Scioto River | 3.4 | 1.8 × 107 | 1.1 × 105 |
| Hoover | Big Walnut Creek | 13.2 | 7.9 × 108 | 3.8 × 105 |
| Alum Creek Lake | Alum/Big Walnut Creek | 13.7 | 8.9 × 108 | 5.0 × 105 |
| South Well-Field | Groundwater | na | na | 5.7 × 105 |