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Boulder Creek above Dry Creek |
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Boulder Creek above Dry Creek |
For January, 2005 the WQI rating at Boulder Creek above Dry Creek (BC-aDC) was Medium (C) due to a WQI value of 62.82.
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 | 112.30 | 95.59 | 0.17 | 16.25 |
| Fecal Coliform | #/100 mL | 170.00 | 35.78 | 0.16 | 5.72 |
| pH | pH | 7.54 | 93.61 | 0.11 | 10.30 |
| Total Phosphate | mg PO4/L | 1.96 | 24.03 | 0.10 | 2.40 |
| Nitrates | mg NO3/L | Data Unavailable | |||
| Turbidity | NTU | 14.50 | 65.74 | 0.08 | 5.26 |
| Total Solids | mg/l | 369.00 | 48.71 | 0.07 | 3.41 |
| Totals (factors, total) | 0.69 | 43.34 | |||
| Adjusted WQI | 62.82 | ||||
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.