Central Ravine
| Type | Water Quality Monitoring |
|---|
260346 sampling events recorded.
| Parameter | Period | Records | Charts | Min | Median | Mean | Max | Std.Dev. | Pct-10th | Pct-25th | Pct-75th | Pct-90th |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ammonia-nitrogen (mg/l) | 2009-04-30 to 2023-10-13 |
183 | 0.02 | 0.1 | 0.1844 | 1.8 | 0.2257 | 0.02 | 0.06 | 0.22 | 0.458 | |
| Cadmium (μg/L) | 2009-04-30 to 2023-10-13 |
181 | 0.063 | 0.2 | 0.2827 | 7.2 | 0.5416 | 0.1 | 0.11 | 0.31 | 0.5 | |
| Chloride (mg/l) | 2009-04-30 to 2023-10-13 |
185 | 2.0 | 8.0 | 34.84 | 970.0 | 92.3 | 3.0 | 4.4 | 37.6 | 86.92 | |
| Chromium (μg/L) | 2009-04-30 to 2023-10-13 |
181 | 0.37 | 3.2 | 3.8 | 20.4 | 3.026 | 0.93 | 1.6 | 5.0 | 7.0 | |
| Copper (μg/L) | 2009-04-30 to 2023-10-13 |
181 | 0.6 | 5.7 | 8.079 | 107.0 | 9.982 | 1.0 | 3.1 | 10.3 | 15.7 | |
| Discharge (cfs) | 2009-04-29 to 2023-10-25 |
260152 | 0.0 | 0.1381 | 0.997 | 291.9 | 4.385 | 0.0219 | 0.0649 | 0.4509 | 2.498 | |
| Escherichia coli (MPN/100ml) | 2009-06-25 to 2009-08-27 |
2 | 20.0 | 1220.0 | 1220.0 | 2420.0 | 1200.0 | 260.0 | 620.0 | 1820.0 | 2180.0 | |
| Hardness, carbonate (mg/L CaCO3) | 2009-04-30 to 2023-10-13 |
182 | 8.0 | 28.15 | 80.24 | 860.0 | 122.0 | 14.0 | 20.0 | 53.2 | 321.9 | |
| Kjeldahl nitrogen (mg/l) | 2009-04-30 to 2023-10-13 |
186 | 0.12 | 1.2 | 1.437 | 9.7 | 1.233 | 0.405 | 0.78 | 1.7 | 2.55 | |
| Lead (μg/L) | 2009-04-30 to 2023-10-13 |
181 | 0.1 | 2.0 | 2.772 | 26.0 | 3.278 | 0.45 | 0.69 | 3.5 | 6.4 | |
| Level (ft) | 2009-04-29 to 2023-10-25 |
260157 | 0.0008 | 0.1415 | 0.2088 | 4.196 | 0.1962 | 0.0734 | 0.1058 | 0.232 | 0.452 | |
| Nickel (μg/L) | 2009-04-30 to 2023-10-13 |
181 | 0.32 | 2.3 | 3.936 | 94.0 | 8.02 | 0.73 | 1.2 | 3.8 | 6.0 | |
| Nitrate (NO3) as N (mg/l) | 2009-04-30 to 2023-10-13 |
179 | 0.05 | 0.34 | 1.231 | 8.24 | 2.113 | 0.15 | 0.21 | 0.515 | 5.518 | |
| Nitrite (NO2) as N (mg/l) | 2009-04-30 to 2023-10-13 |
179 | 0.03 | 0.04 | 0.0535 | 1.3 | 0.0963 | 0.03 | 0.03 | 0.06 | 0.06 | |
| Phosphorus as P (mg/l) | 2009-04-30 to 2023-10-13 |
186 | 0.033 | 0.156 | 0.2095 | 1.29 | 0.1776 | 0.06 | 0.1067 | 0.2417 | 0.405 | |
| Total Dissolved Phosphorus (mg/l) | 2009-04-30 to 2023-10-13 |
182 | 0.01 | 0.035 | 0.0498 | 0.654 | 0.0607 | 0.0181 | 0.02 | 0.055 | 0.0886 | |
| Total suspended solids (mg/l) | 2009-04-30 to 2023-10-13 |
180 | 1.0 | 56.0 | 194.0 | 3640.0 | 446.6 | 3.0 | 18.75 | 147.2 | 466.3 | |
| Total volatile solids (mg/l) | 2009-04-30 to 2023-10-13 |
180 | 1.0 | 19.5 | 37.58 | 330.0 | 51.89 | 3.0 | 10.0 | 42.0 | 95.2 | |
| Velocity (ft/s) | 2009-04-29 to 2023-10-25 |
260060 | 0.006 | 0.829 | 1.079 | 13.13 | 0.9516 | 0.25 | 0.508 | 1.234 | 2.409 | |
| Zinc (μg/L) | 2009-04-30 to 2023-10-13 |
181 | 1.2 | 36.3 | 70.56 | 4950.0 | 365.6 | 5.0 | 13.5 | 61.2 | 94.0 |