Surface Water Tests & Fees
Certified Non-Potable Water Tests (Streams, Lakes, Ponds)
Test for |
Price |
| Fecal coliform count (for swimming areas) | $40 |
| E. coli count | $35 |
| Total coliform count | $35 |
| Standard Plate count | $35 |
| Soluble reactive (dissolved) phosphorus (to 0.4 ppb) | $28 |
| Total phosphorus (to 1.5 ppb) | $25 |
| Total dissolved phosphorus (to 1.5 ppb) | $33 |
| Particulate phosphorus | $53 |
| Nitrate- + Nitrite-nitrogen | $25 |
| Ammonia-nitrogen (NH3) | $20 |
| Total Kjeldahl nitrogen (TKN) | $30 |
| Organic nitrogen (TKN-NH3) | $50 |
| Total nitrogen (TKN+NO3+NO2) | $55 |
| Total solids | $20 |
| Total dissolved solids | $20 |
| Total suspended solids | $20 |
| pH (certification not required) | $10 |
| Alkalinity | $18 |
| Acidity | $18 |
| Total Hardness | $18 |
| Calcium hardness | $18 |
| Chloride | $20 |
| Sulfate | $22 |
| Specific Conductance (conductivity) | $12 |
| Turbidity | $12 |
| Chemical Oxygen Demand | $20 |
| Methylene Blue Active Substances (MBAS) | $45 |
| Dissolved oxygen (certification not required) | $15 |
| Chlorophyll a | $25 |
| Endothall; Fluridone (ELISA technology, not certifiable) | Inquire |
Note: All tests can be performed on potable (drinking) water but are certifiable for non-potable water only.
Water monitoring after heavy rain or snowmelt is crucial for understanding how nutrients and pollutants move through a watershed.
CSI volunteers collect samples from local streams and lakes and bring them to CSI’s lab for certified analysis.