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Boulder Creek above Dry Creek |
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Boulder Creek above Dry Creek |
For November, 2006 the WQI rating at Boulder Creek above Dry Creek (BC-aDC) was Bad (D) due to a WQI value of 48.40.
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 | 57.10 | 50.80 | 0.17 | 8.64 |
| Fecal Coliform | #/100 mL | 700.00 | 21.47 | 0.16 | 3.43 |
| pH | pH | 7.12 | 90.00 | 0.11 | 9.90 |
| Total Phosphate | mg PO4/L | 2.25 | 22.58 | 0.10 | 2.26 |
| Nitrates | mg NO3/L | Data Unavailable | |||
| Turbidity | NTU | 12.50 | 69.02 | 0.08 | 5.52 |
| Total Solids | mg/l | 341.00 | 52.10 | 0.07 | 3.65 |
| Totals (factors, total) | 0.69 | 33.40 | |||
| Adjusted WQI | 48.40 | ||||
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.