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Middle Boulder Creek Above North Boulder Creek Confluence |
For September, 2006 the WQI rating at Middle Boulder Creek Above North Boulder Creek Confluence (BC-aNBC) was Excellent (A) due to a WQI value of 93.16.
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 | 93.10 | 95.92 | 0.17 | 16.31 |
Fecal Coliform | #/100 mL | Data Unavailable | |||
pH | pH | 7.08 | 89.02 | 0.11 | 9.79 |
Total Phosphate | mg PO4/L | 0.03 | 98.23 | 0.10 | 9.82 |
Nitrates | mg NO3/L | Data Unavailable | |||
Turbidity | NTU | 1.64 | 92.95 | 0.08 | 7.44 |
Total Solids | mg/l | 42.00 | 85.97 | 0.07 | 6.02 |
Totals (factors, total) | 0.53 | 49.37 | |||
Adjusted WQI | 93.16 |
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.