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Boulder Creek Below Coal Creek |
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Boulder Creek Below Coal Creek |
For September, 2002 the WQI rating at Boulder Creek Below Coal Creek (BC-bCC) was Medium (C) due to a WQI value of 58.44.
The chart below details the WQI calulations at this site. See the detailed explanation of the WQI method for more information.
| Parameter | Unit | Parameter Value | Q-value | Weight Factor | Total |
|---|---|---|---|---|---|
| DO% | % sat | 126.30 | 87.15 | 0.17 | 14.82 |
| Fecal Coliform | #/100 mL | 35000.00 | 4.29 | 0.16 | 0.69 |
| pH | pH | 7.76 | 91.97 | 0.11 | 10.12 |
| Total Phosphate | mg PO4/L | 0.51 | 58.06 | 0.10 | 5.81 |
| Nitrates | mg NO3/L | 2.50 | 49.03 | 0.10 | 4.90 |
| Turbidity | NTU | 18.00 | 61.48 | 0.08 | 4.92 |
| Total Solids | mg/l | 202.00 | 70.32 | 0.07 | 4.92 |
| Totals (factors, total) | 0.79 | 46.17 | |||
| Adjusted WQI | 58.44 | ||||
The WQI is computed by converting measured Water Quality Parameters to "Q-Values" using charts developed by the National Sanitation Foundation (NSF) water quality scientists. The Q-Values are then multiplied by a weighting factor based on the importance of that water quality parameter. These values are totaled and then divided by the sum of the weight factors.