National Stream Water Quality Network (NASQAN)
Parameter N Min 5th 25th Median 75th 95th Max 00010 Temperature (C) 34 0.0 0.0 7.5 14.3 16.5 19.0 19.5 00076 Turbidity (NTU) 1 6.1 6.1 6.1 6.1 6.1 6.1 6.1 00095 Conductance (uS/cm) 34 143.0 147.0 186.0 215.5 232.0 323.0 323.0 00300 Dissolved oxygen 32 2.5 2.5 8.0 8.7 9.8 11.0 11.0 00400 pH 34 7.0 7.0 7.7 7.8 7.9 8.1 8.3 00452 CO3 (filtered) 28 0.0 0.0 0.0 0.0 0.0 0.0 0.0 00453 HCO3 (filtered) 34 61.0 63.0 79.0 90.5 114.0 163.0 188.0 39086 Alk (filtered, as CaCO3) 34 50.0 52.0 66.0 74.5 94.0 134.0 154.0 70331 % fines 25 63.0 64.0 73.0 82.0 93.0 99998.0 99998.0 80154 Suspended sediment 33 3.0 4.0 233.0 342.0 499.0 99998.0 99998.0 99872 Turbidity (NTU) 26 5.9 7.6 68.1 145.5 195.0 426.0 452.0
Percent
Parameter MRL N Detections Min 5th 25th Median 75th 95th Max
00608 NH3-N .015 32 59 < 0.015 < 0.015 < 0.015 < 0.015 < 0.015 0.100 0.125
00613 NO2-N .010 32 94 < 0.010 < 0.010 < 0.010 < 0.010 < 0.010 < 0.010 < 0.010
00623 Org+NH3-N (filtered) .200 33 100 < 0.200 < 0.200 < 0.200 < 0.200 0.243 0.424 0.509
00625 Org+NH3-N (whole-water) .200 33 100 < 0.200 < 0.200 0.396 0.440 0.641 0.807 0.977
00631 NO2+NO3-N .050 32 100 < 0.050 < 0.050 0.069 0.082 0.100 0.195 0.206
00665 Total P (whole-water) .010 34 100 0.022 0.022 0.183 0.296 0.346 0.508 0.700
00666 Total P (filtered) .010 33 97 < 0.010 < 0.010 < 0.010 < 0.010 0.010 0.014 0.018
00671 PO4-P .010 32 44 < 0.010 < 0.010 < 0.010 < 0.010 < 0.010 < 0.010 < 0.010
00681 DOC .200 31 100 2.103 2.172 3.058 5.476 7.276 13.95 14.35
00688 Particulate Inorganic C .120 33 64 < 0.120 < 0.120 < 0.120 0.302 1.318 4.429 5.356
00694 Total Particulate C .120 33 100 0.424 0.428 2.700 4.773 6.341 9.031 11.78
00689 Particulate Organic C .120 33 100 0.418 0.418 2.501 3.944 4.921 6.773 9.413
49570 Total Particulate N . 33 97 0.011 0.034 0.139 0.223 0.304 0.373 0.641
Percent
Parameter MRL N Detections Min 5th 25th Median 75th 95th Max
00915 Calcium .020 34 100 22.27 22.35 26.90 29.23 32.80 47.93 48.70
00925 Magnesium .010 34 100 4.204 4.247 5.634 7.267 8.013 11.50 11.67
00930 Sodium .200 34 100 1.462 1.637 1.934 2.597 3.070 3.926 3.950
00935 Potassium .010 34 100 0.903 0.929 1.140 1.205 1.471 1.760 1.900
00940 Chloride .010 34 100 0.508 0.521 0.732 0.837 1.120 1.310 1.320
00945 Sulfate .010 34 100 12.79 13.39 22.17 27.33 29.89 36.68 39.36
00950 Fluoride .100 34 56 < 0.100 < 0.100 < 0.100 < 0.100 0.100 0.172 0.181
00955 Silica .010 34 100 4.568 4.743 5.531 6.326 7.268 12.80 13.16
Percent
Parameter MRL N Detections Min 5th 25th Median 75th 95th Max
01000 Arsenic 1.0 34 100 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 1.1 1.1
01005 Barium 1.0 33 100 35.4 36.8 41.0 43.9 49.9 81.6 85.5
01010 Beryllium 1.0 33 0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0
01020 Boron 16.0 34 9 < 16.0 < 16.0 < 16.0 < 16.0 < 16.0 18.2 20.1
01025 Cadmium 1.0 33 52 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0
01030 Chromium 1.0 33 3 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0
01035 Cobalt 1.0 33 100 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0
01040 Copper 1.0 33 100 < 1.0 < 1.0 2.1 2.8 3.3 5.4 6.0
01046 Iron 3.0 34 100 14.4 24.2 77.4 124.1 193.2 320.0 331.9
01049 Lead 1.0 33 79 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0
01056 Manganese 1.0 33 100 < 1.0 1.9 3.7 9.9 16.4 143.4 162.3
01060 Molybdenum 1.0 33 100 < 1.0 < 1.0 < 1.0 < 1.0 1.0 1.5 1.6
01065 Nickel 1.0 33 100 < 1.0 < 1.0 < 1.0 1.5 2.0 2.7 2.8
01075 Silver 1.0 33 3 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 3.0
01080 Strontium 0.5 34 100 80.1 80.2 95.0 120.9 134.8 205.0 208.5
01085 Vanadium 6.0 34 100 < 6.0 < 6.0 < 6.0 < 6.0 < 6.0 < 6.0 < 6.0
01090 Zinc 1.0 33 79 < 1.0 < 1.0 < 1.0 1.3 1.7 3.8 4.1
01106 Aluminum 1.0 33 97 < 1.0 < 1.0 12.0 14.0 16.9 29.3 44.1
01130 Lithium 4.0 34 100 < 4.0 < 4.0 < 4.0 < 4.0 < 4.0 < 4.0 < 4.0
01145 Selenium 1.0 34 85 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0
22703 Uranium 1.0 33 100 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 1.0
Last modified on: December 1, 2006