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Boulder Creek above Dry Creek |
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Boulder Creek above Dry Creek |
For May, 2007 the WQI rating at Boulder Creek above Dry Creek (BC-aDC) was Medium (C) due to a WQI value of 67.90.
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 | 92.80 | 95.43 | 0.17 | 16.22 |
| Fecal Coliform | #/100 mL | 80.00 | 44.37 | 0.16 | 7.10 |
| pH | pH | 7.70 | 92.79 | 0.11 | 10.21 |
| Total Phosphate | mg PO4/L | 1.12 | 34.52 | 0.10 | 3.45 |
| Nitrates | mg NO3/L | Data Unavailable | |||
| Turbidity | NTU | 7.58 | 79.51 | 0.08 | 6.36 |
| Total Solids | mg/l | 357.00 | 50.16 | 0.07 | 3.51 |
| Totals (factors, total) | 0.69 | 46.85 | |||
| Adjusted WQI | 67.90 | ||||
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.