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Boulder Creek Above Coal Creek |
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Boulder Creek Above Coal Creek |
For November, 2002 the WQI rating at Boulder Creek Above Coal Creek (BC-aCC) was Medium (C) due to a WQI value of 65.03.
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 | 103.50 | 98.68 | 0.17 | 16.77 |
| Fecal Coliform | #/100 mL | 20.00 | 61.54 | 0.16 | 9.85 |
| pH | pH | 8.49 | 69.18 | 0.11 | 7.61 |
| Total Phosphate | mg PO4/L | 0.61 | 52.26 | 0.10 | 5.23 |
| Nitrates | mg NO3/L | 8.80 | 17.64 | 0.10 | 1.76 |
| Turbidity | NTU | 1.92 | 92.95 | 0.08 | 7.44 |
| Total Solids | mg/l | 443.00 | 38.87 | 0.07 | 2.72 |
| Totals (factors, total) | 0.79 | 51.38 | |||
| Adjusted WQI | 65.03 | ||||
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.