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Boulder Creek Below Coal Creek |
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Boulder Creek Below Coal Creek |
For December, 2002 the WQI rating at Boulder Creek Below Coal Creek (BC-bCC) was Bad (D) due to a WQI value of 43.26.
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 | 155.60 | 50.00 | 0.17 | 8.50 |
| Fecal Coliform | #/100 mL | 3100.00 | 13.04 | 0.16 | 2.09 |
| pH | pH | 8.49 | 69.18 | 0.11 | 7.61 |
| Total Phosphate | mg PO4/L | 1.45 | 28.55 | 0.10 | 2.85 |
| Nitrates | mg NO3/L | 6.70 | 26.05 | 0.10 | 2.61 |
| Turbidity | NTU | 22.40 | 57.38 | 0.08 | 4.59 |
| Total Solids | mg/l | 24.52 | 84.68 | 0.07 | 5.93 |
| Totals (factors, total) | 0.79 | 34.17 | |||
| Adjusted WQI | 43.26 | ||||
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.