| Feature | Description |
| pH | Water’s acidity or alkalinity |
| Hardness | Concentration of calcium and magnesium ions |
| Solids | Total dissolved and suspended solids in water |
| Chloramines | Disinfection by-products formed during chlorination |
| Sulfate | Concentration of sulfate salts in water |
| Conductivity | Water’s ability to conduct electricity |
| Organic carbon | Amount of organic carbon in water |
| Trihalomethanes | Disinfection by-products that may pose health risks |
| Turbidity | Clarity of water, indicating suspended particles |