Central Ravine
| Type | Water Quality Monitoring |
|---|
244115 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 2022-10-13 |
168 | 0.02 | 0.1 | 0.1865 | 1.8 | 0.2291 | 0.02 | 0.06 | 0.2225 | 0.453 | |
| Cadmium (μg/L) | 2009-04-30 to 2022-10-13 |
166 | 0.063 | 0.2 | 0.298 | 7.2 | 0.5629 | 0.1 | 0.14 | 0.365 | 0.5 | |
| Chloride (mg/l) | 2009-04-30 to 2022-10-13 |
170 | 2.0 | 7.8 | 34.57 | 970.0 | 95.47 | 3.0 | 4.2 | 33.88 | 84.73 | |
| Chromium (μg/L) | 2009-04-30 to 2022-10-13 |
166 | 0.37 | 3.25 | 3.8 | 20.4 | 3.037 | 0.885 | 1.325 | 5.0 | 7.05 | |
| Copper (μg/L) | 2009-04-30 to 2022-10-13 |
166 | 0.6 | 5.7 | 8.268 | 107.0 | 10.28 | 1.0 | 3.1 | 10.57 | 16.0 | |
| Discharge (cfs) | 2009-04-29 to 2022-10-27 |
243936 | 0.0 | 0.139 | 1.008 | 291.9 | 4.362 | 0.0201 | 0.06 | 0.4696 | 2.561 | |
| 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 2022-10-13 |
167 | 8.0 | 28.0 | 74.15 | 860.0 | 117.1 | 13.6 | 20.0 | 47.15 | 281.4 | |
| Kjeldahl nitrogen (mg/l) | 2009-04-30 to 2022-10-13 |
171 | 0.14 | 1.2 | 1.453 | 9.7 | 1.231 | 0.45 | 0.82 | 1.7 | 2.5 | |
| Lead (μg/L) | 2009-04-30 to 2022-10-13 |
166 | 0.1 | 2.0 | 2.821 | 26.0 | 3.358 | 0.435 | 0.6925 | 3.5 | 6.4 | |
| Level (ft) | 2009-04-29 to 2022-10-27 |
243941 | 0.0008 | 0.143 | 0.2107 | 4.196 | 0.1974 | 0.0719 | 0.1043 | 0.237 | 0.456 | |
| Nickel (μg/L) | 2009-04-30 to 2022-10-13 |
166 | 0.32 | 2.35 | 4.05 | 94.0 | 8.336 | 0.745 | 1.3 | 3.9 | 6.1 | |
| Nitrate (NO3) as N (mg/l) | 2009-04-30 to 2022-10-13 |
165 | 0.05 | 0.34 | 1.092 | 7.52 | 1.894 | 0.15 | 0.2 | 0.51 | 4.324 | |
| Nitrite (NO2) as N (mg/l) | 2009-04-30 to 2022-10-13 |
165 | 0.03 | 0.03 | 0.0527 | 1.3 | 0.1002 | 0.03 | 0.03 | 0.06 | 0.06 | |
| Phosphorus as P (mg/l) | 2009-04-30 to 2022-10-13 |
171 | 0.033 | 0.155 | 0.2097 | 1.29 | 0.1746 | 0.066 | 0.1095 | 0.24 | 0.408 | |
| Total Dissolved Phosphorus (mg/l) | 2009-04-30 to 2022-10-13 |
168 | 0.01 | 0.031 | 0.049 | 0.654 | 0.0629 | 0.017 | 0.02 | 0.055 | 0.0862 | |
| Total suspended solids (mg/l) | 2009-04-30 to 2022-10-13 |
165 | 1.0 | 56.0 | 203.0 | 3640.0 | 463.9 | 3.0 | 20.0 | 148.0 | 467.8 | |
| Total volatile solids (mg/l) | 2009-04-30 to 2022-10-13 |
165 | 1.0 | 20.0 | 38.41 | 330.0 | 53.06 | 3.0 | 10.0 | 42.0 | 96.2 | |
| Velocity (ft/s) | 2009-04-29 to 2022-10-27 |
243844 | 0.006 | 0.814 | 1.073 | 13.13 | 0.9622 | 0.24 | 0.485 | 1.245 | 2.43 | |
| Zinc (μg/L) | 2009-04-30 to 2022-10-13 |
166 | 1.2 | 37.7 | 73.7 | 4950.0 | 381.5 | 5.0 | 15.15 | 62.7 | 94.2 |