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Boulder Creek above WW Plant |
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Boulder Creek above WW Plant |
For April, 2007 the WQI rating at Boulder Creek above WW Plant (BC-aWWTP) was Good (B) due to a WQI value of 72.02.
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 | 96.10 | 97.54 | 0.17 | 16.58 |
| Fecal Coliform | #/100 mL | 790.00 | 20.83 | 0.16 | 3.33 |
| pH | pH | 7.81 | 90.82 | 0.11 | 9.99 |
| Total Phosphate | mg PO4/L | 0.05 | 97.26 | 0.10 | 9.73 |
| Nitrates | mg NO3/L | Data Unavailable | |||
| Turbidity | NTU | 12.60 | 69.02 | 0.08 | 5.52 |
| Total Solids | mg/l | 245.00 | 64.84 | 0.07 | 4.54 |
| Totals (factors, total) | 0.69 | 49.69 | |||
| Adjusted WQI | 72.02 | ||||
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.