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Boulder Creek Below Coal Creek |
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Boulder Creek Below Coal Creek |
For November, 2002 the WQI rating at Boulder Creek Below Coal Creek (BC-bCC) was Medium (C) due to a WQI value of 53.99.
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 | 97.30 | 97.86 | 0.17 | 16.64 |
| Fecal Coliform | #/100 mL | 490.00 | 23.85 | 0.16 | 3.82 |
| pH | pH | 8.48 | 70.49 | 0.11 | 7.75 |
| Total Phosphate | mg PO4/L | 0.95 | 38.55 | 0.10 | 3.85 |
| Nitrates | mg NO3/L | 6.10 | 28.96 | 0.10 | 2.90 |
| Turbidity | NTU | 7.77 | 78.69 | 0.08 | 6.30 |
| Total Solids | mg/l | 573.00 | 20.00 | 0.07 | 1.40 |
| Totals (factors, total) | 0.79 | 42.65 | |||
| Adjusted WQI | 53.99 | ||||
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.