 |
Boulder Creek Above Coal Creek |
|
Boulder Creek Above Coal Creek |
For July, 2002 the WQI rating at Boulder Creek Above Coal Creek (BC-aCC) was Medium (C) due to a WQI value of 55.06.
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 | 235.00 | 50.00 | 0.17 | 8.50 |
| Fecal Coliform | #/100 mL | 40.00 | 52.48 | 0.16 | 8.40 |
| pH | pH | 9.70 | 27.38 | 0.11 | 3.01 |
| Total Phosphate | mg PO4/L | 0.50 | 60.65 | 0.10 | 6.06 |
| Nitrates | mg NO3/L | 1.20 | 66.34 | 0.10 | 6.63 |
| Turbidity | NTU | 7.50 | 79.51 | 0.08 | 6.36 |
| Total Solids | mg/l | 247.00 | 64.68 | 0.07 | 4.53 |
| Totals (factors, total) | 0.79 | 43.49 | |||
| Adjusted WQI | 55.06 | ||||
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.