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Boulder Creek Below Coal Creek |
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Boulder Creek Below Coal Creek |
For April, 2002 the WQI rating at Boulder Creek Below Coal Creek (BC-bCC) was Medium (C) due to a WQI value of 54.37.
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 | 128.20 | 86.02 | 0.17 | 14.62 |
| Fecal Coliform | #/100 mL | 50.00 | 49.77 | 0.16 | 7.96 |
| pH | pH | 8.79 | 57.05 | 0.11 | 6.28 |
| Total Phosphate | mg PO4/L | 1.19 | 33.23 | 0.10 | 3.32 |
| Nitrates | mg NO3/L | 5.00 | 33.98 | 0.10 | 3.40 |
| Turbidity | NTU | 9.90 | 74.59 | 0.08 | 5.97 |
| Total Solids | mg/l | 674.00 | 20.00 | 0.07 | 1.40 |
| Totals (factors, total) | 0.79 | 42.95 | |||
| Adjusted WQI | 54.37 | ||||
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.