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Boulder Creek Below Coal Creek |
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Boulder Creek Below Coal Creek |
For October, 2002 the WQI rating at Boulder Creek Below Coal Creek (BC-bCC) was Bad (D) due to a WQI value of 49.92.
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 | 125.60 | 87.31 | 0.17 | 14.84 |
| Fecal Coliform | #/100 mL | 1100.00 | 18.76 | 0.16 | 3.00 |
| pH | pH | 8.70 | 61.31 | 0.11 | 6.74 |
| Total Phosphate | mg PO4/L | 0.51 | 58.06 | 0.10 | 5.81 |
| Nitrates | mg NO3/L | 6.00 | 29.29 | 0.10 | 2.93 |
| Turbidity | NTU | 20.80 | 58.85 | 0.08 | 4.71 |
| Total Solids | mg/l | 537.00 | 20.00 | 0.07 | 1.40 |
| Totals (factors, total) | 0.79 | 39.43 | |||
| Adjusted WQI | 49.92 | ||||
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.