Table 1: General Water Quality Indicators
| Indicator | Acceptable Limit | Indication |
|---|---|---|
| Coliform Bacteria | < 1 coliform/100mL | Possible bacterial or viral contamination (absent) from human sewage or animal waste |
| pH Value | 6.5 to 8.5 | An important overall measure of water quality, pH can alter corrosivity and solubility of contaminants. Low pH will cause pitting of pipes and fixtures and/or metallic taste. This may indicate that metals are being dissolved. At a high pH, the water will have a slippery feel or soda taste. |
| Total
Dissolved Solids (TDS) | 500 mg/L | Dissolved minerals, like iron or manganese. High TDS also may indicate hardness (scaly deposits) and cause staining, or a salty, bitter taste. |
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Publication #: 356-489
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