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Boulder Creek at 107th St |
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Boulder Creek at 107th St |
For October, 2006 the WQI rating at Boulder Creek at 107th St (BC-107) was Good (B) due to a WQI value of 78.06.
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 | 102.70 | 98.84 | 0.17 | 16.80 |
| Fecal Coliform | #/100 mL | Data Unavailable | |||
| pH | pH | 8.04 | 85.74 | 0.11 | 9.43 |
| Total Phosphate | mg PO4/L | 0.57 | 54.19 | 0.10 | 5.42 |
| Nitrates | mg NO3/L | Data Unavailable | |||
| Turbidity | NTU | 5.82 | 82.79 | 0.08 | 6.62 |
| Total Solids | mg/l | 403.00 | 44.19 | 0.07 | 3.09 |
| Totals (factors, total) | 0.53 | 41.37 | |||
| Adjusted WQI | 78.06 | ||||
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.