| Conductivity (mS/cm) | Quality (CE) | |
| <0.4 | Excellent | Water from the Tartar groundwater aquifer is classified as good to medium quality |
| between 0.4 and 1.3 | Good | |
| between 1.3 and 2.7 | Average | |
| between 2.7 and 3 | Wrong | |
| >3 | Very Bad |