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Middle Boulder Creek Above North Boulder Creek Confluence |
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Middle Boulder Creek Above North Boulder Creek Confluence |
For May, 2007 the WQI rating at Middle Boulder Creek Above North Boulder Creek Confluence (BC-aNBC) was Good (B) due to a WQI value of 82.83.
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 | 95.30 | 96.89 | 0.17 | 16.47 |
| Fecal Coliform | #/100 mL | 50.00 | 49.77 | 0.16 | 7.96 |
| pH | pH | 7.35 | 93.28 | 0.11 | 10.26 |
| Total Phosphate | mg PO4/L | 0.05 | 97.26 | 0.10 | 9.73 |
| Nitrates | mg NO3/L | Data Unavailable | |||
| Turbidity | NTU | 3.64 | 88.03 | 0.08 | 7.04 |
| Total Solids | mg/l | 111.00 | 81.29 | 0.07 | 5.69 |
| Totals (factors, total) | 0.69 | 57.15 | |||
| Adjusted WQI | 82.83 | ||||
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.