County | Setting | pH | EC (µS/cm) | TDS (ppm) |
Canon | Rural | 7.95 | 323.67 | 162.33 |
Coffee | Rural | 7.54 | 112.20 | 56.13 |
Warren | Rural | 7.90 | 286.00 | 142.00 |
Rutherford | Urbanizing | 7.14 | 177.90 | 89.20 |
Williamson | Urbanizing | 7.76 | 181.80 | 90.43 |
Davidson | Urban | 7.61 | 175.23 | 87.63 |
EPA MCL | 6.5 - 8 | - | 500 |