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Water Quality Monitoring Sites > O'Conner's Creek

O'Conner's Creek

TypeWater Quality Monitoring

254547 sampling events recorded.

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Parameter Period Records Charts Min Median Mean Max Std.Dev. Pct-10th Pct-25th Pct-75th Pct-90th
Ammonia-nitrogen (mg/l) 2007-03-12 to
2019-09-23
102
Table Series Scatter Box Plot
0.02 0.02 0.0757 1.95 0.212 0.02 0.02 0.05 0.13
Cadmium (μg/L) 2013-05-20 to
2019-09-23
89
Table Series Scatter Box Plot
0.063 0.2 0.2516 1.0 0.17 0.2 0.2 0.2 0.432
Chloride (mg/l) 2007-03-12 to
2019-09-23
104
Table Series Scatter Box Plot
7.1 17.7 17.4 53.2 5.24 12.0 14.75 19.42 20.71
Chromium (μg/L) 2013-05-20 to
2019-09-23
89
Table Series Scatter Box Plot
0.24 0.85 3.558 48.3 8.256 0.47 0.56 2.0 4.48
Copper (μg/L) 2013-05-20 to
2019-09-23
89
Table Series Scatter Box Plot
0.3 1.6 3.899 43.3 7.43 0.3 0.33 3.7 6.22
Discharge (cfs) 2004-05-12 to
2019-10-28
219794
Table Series Box Plot
0.0008 2.584 2.662 38.0 1.23 1.181 2.079 3.33 3.964
Dissolved Oxygen (mg/L) 2007-05-21 to
2019-09-23
45
Table Series Scatter Box Plot
5.48 9.8 9.629 12.58 1.503 8.012 8.9 10.51 11.46
Escherichia coli (MPN/100ml) 2007-05-02 to
2019-09-23
43
Table Series Scatter Box Plot
33.0 126.0 241.3 2420.0 387.7 35.6 69.5 244.0 488.0
Hardness, carbonate (mg/L CaCO3) 2013-05-20 to
2019-09-23
91
Table Series Scatter Box Plot
10.0 248.0 234.3 337.0 59.6 158.0 200.5 279.0 292.0
Kjeldahl nitrogen (mg/l) 2007-03-12 to
2019-09-23
104
Table Series Scatter Box Plot
0.05 0.62 1.418 15.0 2.262 0.233 0.2975 1.425 2.45
Lead (μg/L) 2013-05-20 to
2019-09-23
89
Table Series Scatter Box Plot
0.1 0.33 2.42 32.7 6.342 0.1 0.16 1.1 3.04
Level (ft) 2004-05-12 to
2019-10-28
219794
Table Series Box Plot
10.22 10.68 10.83 12.8 0.5226 10.43 10.53 10.84 11.66
Nickel (μg/L) 2013-05-20 to
2019-09-23
89
Table Series Scatter Box Plot
0.3 0.97 3.266 35.0 7.032 0.4 0.5 2.3 5.32
Nitrate (NO3) as N (mg/l) 2007-03-12 to
2019-09-23
101
Table Series Scatter Box Plot
0.61 6.27 5.927 10.1 2.634 2.4 3.7 8.46 9.06
Nitrite (NO2) as N (mg/l) 2007-03-12 to
2019-09-23
101
Table Series Scatter Box Plot
0.03 0.03 0.0676 1.3 0.1416 0.03 0.03 0.05 0.1
pH 2013-08-14 to
2019-09-23
33
Table Series Scatter Box Plot
7.7 8.2 8.179 9.1 0.2852 7.808 8.1 8.3 8.5
Phosphorus as P (mg/l) 2007-03-12 to
2019-09-23
104
Table Series Scatter Box Plot
0.018 0.097 0.3302 5.72 0.7792 0.0313 0.0457 0.276 0.4781
Specific conductance (mg/l) 2018-05-22 to
2018-10-18
4
Table Series Scatter Box Plot
537.0 587.0 575.8 592.0 22.51 551.4 573.0 589.8 591.1
Specific Conductance (µS/cm) 2013-08-14 to
2019-09-23
29
Table Series Scatter Box Plot
533.0 578.0 579.8 623.0 25.44 545.0 564.0 599.0 615.2
Total Dissolved Phosphorus (mg/l) 2013-05-20 to
2019-09-23
90
Table Series Scatter Box Plot
0.02 0.043 0.0752 0.472 0.0829 0.02 0.0243 0.096 0.1649
Total suspended solids (mg/l) 2007-03-12 to
2019-09-23
104
Table Series Scatter Box Plot
1.0 15.0 149.6 2280.0 421.6 2.0 3.0 59.25 209.2
Total volatile solids (mg/l) 2007-03-12 to
2019-09-23
104
Table Series Scatter Box Plot
1.0 3.0 26.12 370.0 70.31 1.0 1.0 12.0 35.4
Transparency, tube with disk (cm) 2007-05-21 to
2017-05-26
26
Table Series Scatter Box Plot
20.0 100.0 99.69 120.0 19.72 92.5 100.0 100.0 120.0
Velocity (ft/s) 2013-04-24 to
2013-11-01
18329
Table Series Box Plot
0.002 0.546 0.5871 9.35 0.2555 0.465 0.496 0.619 0.736
Water Temperature (C) 2007-05-21 to
2019-09-23
54761
Table Series Box Plot
2.57 13.15 12.95 21.3 3.11 8.65 10.98 15.18 16.76
Zinc (μg/L) 2013-05-20 to
2019-09-23
89
Table Series Scatter Box Plot
0.8 5.0 15.18 144.0 29.88 0.8 1.5 11.9 29.98