Post Treatment Characteristics at WTP Effluent |
CGA Wells Post Treatment Values |
EPA/OHA Standard |
|
Free Chlorine Residual (mg/L) |
0.8 | 4 |
| Temp. (Degrees C) | 16-18 | N/A |
| pH | 8.0-8.2 | 6.5-8.5 (S) |
| Color | <5 | 15 (S) |
| Conductivity (µ/cm) | 190-308 | N/A |
| Total Dissolved Solids (mg/L) | 110-229 | 500 (S) |
| Turbidity (NTU) | <.05 | 5 |
| Silica (mg/L as SiO2) | 43-49 | N/A |
| Total Alkalinity as CaCO3 (mg/L) | 52-116 | N/A |
| Hardness as CaCO3 (mg/L) | 58-108 | 250 (S) |
| Chloride (mg/L) | 1.2-65 | 250 (S) |
| Sulfate | 1.2-1.4 | 250 (S) |
| Manganese (mg/L) | <.02 | .05 mg/L |
| Iron (mg/L) | <.1 | .30 mg/L |
* These CGA characteristics are based on values measured at our treatment facility and are subject to change depending on different combinations of wells in service.
* (S) Secondary contaminants pertain only to aesthetic water quality considerations such as taste, odor, & color. These contaminants do not pose a risk to human health at this standard.
* For more information about Rockwood Water’s drinking water please contact our Water Quality Department at (503-674-4512).