| Ohio River at TMC, Water Hardness, June 22, 2005 | ||||||
| Total | Ca Hardness | Mg Hardness | Latitude | Longitude | ||
| Hardness | ||||||
| ppm | ppm | ppm | ||||
| Upstream | 150.5 | 90.5 | 60.0 | N38 58.024 | W84 17.979 | |
| at TMC | ||||||
| Tributary | 253.5 | 157.5 | 96.0 | N38 01.176 | W84 22.803 | |
| 12 Mile Creek | ||||||
| Downstream | 144.5 | 84.5 | 60.0 | N38 01.176 | W84 22.802 | |
| from 12 Mile Cr. | ||||||