By Valerie J. Kelly, Richard P. Hooper, Brent T. Aulenbach, and Mary Janet
Daily Mean Streamflow
Units N Min 5th 25th Median 75th 95th Max Cubic feet per second 1,827 4,100 17,000 20,200 23,800 29,500 49,600 59,100 Cubic meters per second 1,827 116 481 572 674 835 1,405 1,674
Field Parameters, Turbidity, and Suspended Sediment
Units in milligrams per liter, except where noted
Parameter N Min 5th 25th Median 75th 95th Max 00010 Temperature (C) 22 0.3 0.5 2.2 8.4 13.4 15.4 16.5 00076 Turbidity (NTU) 22 0.2 0.2 0.6 1.0 1.3 2.0 9.0 00095 Conductance (uS/cm) 23 531.0 560.0 594.0 615.0 636.0 656.0 672.0 00300 Dissolved oxygen 22 7.1 7.9 9.6 10.9 13.0 13.9 14.0 00400 pH (standard units) 21 7.6 7.7 8.0 8.1 8.2 8.6 8.6 00452 CO3 (filtered) 19 0.0 0.0 0.0 0.0 0.0 3.0 3.0 00453 HCO3 (filtered) 19 145.0 145.0 168.0 176.0 184.0 189.0 189.0 39086 Alk (filtered, as CaCO3) 19 119.0 119.0 138.0 144.0 152.0 156.0 156.0 70331 % finer than 62 microns 16 57.0 57.0 85.5 91.0 96.8 98.0 98.0 80154 Suspended sediment 21 0.7 1.0 1.0 2.0 3.0 6.0 7.0
Nutrients and Organic Carbon, dissolved (filtered at 0.45 microns) and whole-water (unfiltered)
Units in milligrams per liter
Note: because of changes in reporting levels (RL), all censored data in this summary are converted to the highest RL reported for this station
Percent
Parameter RL N Detections Min 5th 25th Median 75th 95th Max
00608 NH3-N .002 22 86 < 0.002 < 0.002 0.003 0.008 0.012 0.021 0.022
00613 NO2-N .001 22 82 < 0.001 < 0.001 0.001 0.002 0.002 0.003 0.004
00623 Org+NH3-N (filtered) .200 22 86 < 0.200 < 0.200 0.161 0.185 0.200 0.239 0.260
00625 Org+NH3-N (whole-water) .200 23 87 < 0.200 < 0.200 0.179 0.196 0.209 0.248 0.252
00631 NO2+NO3-N .050 22 100 0.028 0.029 0.046 0.063 0.098 0.147 0.265
00665 Total P (whole-water) .050 23 43 < 0.050 < 0.050 < 0.050 < 0.050 0.010 0.035 0.050
00666 Total P (filtered) .050 23 17 < 0.050 < 0.050 < 0.050 < 0.050 < 0.050 0.019 0.050
00671 PO4-P .001 22 59 < 0.001 < 0.001 < 0.001 0.001 0.002 0.003 0.005
00681 DOC .300 17 100 2.900 2.900 3.000 3.270 3.353 3.800 3.800
00689 SOC .200 17 24 < 0.200 < 0.200 < 0.200 < 0.200 < 0.200 0.400 0.400
Major Ions, dissolved (filtered at 0.45 microns)
Units in milligrams per liter, except where noted
Percent
Parameter RL N Detections Min 5th 25th Median 75th 95th Max
00915 Calcium .020 23 100 42.74 44.45 45.55 47.49 49.99 50.60 51.62
00925 Magnesium .010 23 100 16.87 16.91 18.23 18.74 19.54 19.98 20.40
00930 Sodium .200 23 100 44.40 45.67 49.12 51.02 53.40 55.50 57.13
00935 Potassium .010 23 100 3.370 3.400 3.540 3.720 3.800 3.920 4.010
00940 Chloride .010 23 100 6.826 7.037 7.823 7.950 8.760 9.037 9.060
00945 Sulfate .010 23 100 133.5 133.7 142.4 149.2 154.0 163.2 166.0
00950 Fluoride .100 22 100 0.398 0.436 0.471 0.493 0.535 0.578 0.600
00955 Silica .010 22 100 4.723 5.379 5.672 6.002 6.700 7.296 7.440
Trace Elements, dissolved (filtered at 0.45 microns)
Units in micrograms per liter
Note: because of changes in reporting levels (RL), all censored data in this summary are converted to the highest RL reported for this station
Percent
Parameter RL N Detections Min 5th 25th Median 75th 95th Max
01000 Arsenic 1.0 22 100 1.1 1.6 1.7 1.9 2.0 2.2 3.0
01005 Barium 1.0 10 100 43.0 43.0 43.8 44.9 45.4 47.4 47.4
01010 Beryllium 1.0 10 0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0
01020 Boron 16.0 22 100 84.5 88.8 95.6 98.7 101.7 104.7 109.0
01025 Cadmium 1.0 10 0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0
01030 Chromium 1.0 10 60 < 1.0 < 1.0 < 1.0 1.2 1.9 3.9 3.9
01035 Cobalt 1.0 10 0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0
01040 Copper 1.0 10 100 1.3 1.3 1.7 1.9 2.1 2.4 2.4
01046 Iron 10.0 22 5 < 10.0 < 10.0 < 10.0 < 10.0 < 10.0 < 10.0 10.0
01049 Lead 1.0 10 0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0
01056 Manganese 1.0 10 10 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 1.5 1.5
01060 Molybdenum 1.0 10 100 2.2 2.2 2.3 2.4 2.5 3.0 3.0
01065 Nickel 1.0 10 100 1.5 1.5 1.8 2.0 2.0 2.1 2.1
01075 Silver 1.0 10 0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0
01080 Strontium 0.5 22 100 412.9 417.6 443.1 460.9 469.9 480.0 486.0
01085 Vanadium 10.0 22 0 < 10.0 < 10.0 < 10.0 < 10.0 < 10.0 < 10.0 < 10.0
01090 Zinc 1.0 10 90 < 1.0 < 1.0 1.8 4.0 8.9 16.5 16.5
01095 Antimony 1.0 10 0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0
01106 Aluminum 1.0 10 40 < 1.0 < 1.0 < 1.0 < 1.0 1.4 2.0 2.0
01130 Lithium 4.0 22 100 31.5 33.0 37.0 38.8 40.4 41.3 41.4
01145 Selenium 2.4 22 0 < 2.4 < 2.4 < 2.4 < 2.4 < 2.4 < 2.4 < 2.4
22703 Uranium 1.0 10 100 2.6 2.6 2.8 2.9 2.9 3.0 3.0
Pesticides, dissolved (filtered at 0.7 microns)
Units in micrograms per liter, except where noted
Note: concentrations sometimes are estimated below the reporting level (RL); in this summary, all censored and estimated concentrations are converted to highest RL reported for this station; the percent detections described in the table include estimated concentrations, when appropriate
Percent
Parameter RL N Detections Min 5th 25th Median 75th 95th Max
04024 Propachlor .007 22 0 < 0.007 < 0.007 < 0.007 < 0.007 < 0.007 < 0.007 < 0.007
04028 Butylate .002 22 0 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002
04035 Simazine .005 22 5 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 0.005
04037 Prometon .018 22 45 < 0.018 < 0.018 < 0.018 < 0.018 0.018 0.018 0.018
04040 Desethyl atrazine .002 22 41 < 0.002 < 0.002 < 0.002 < 0.002 0.002 0.004 0.004
04041 Cyanazine .004 22 32 < 0.004 < 0.004 < 0.004 < 0.004 0.004 0.006 0.008
04095 Fonofos .003 22 0 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003
34253 alpha-HCH .002 22 0 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002
34653 p,p DDE .006 22 14 < 0.006 < 0.006 < 0.006 < 0.006 < 0.006 0.006 0.006
38933 Chlorpyrifos .004 22 0 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004
39341 gamma-HCH .004 22 0 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004
39381 Dieldrin .001 22 0 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001
39415 Metolachlor .005 22 64 < 0.005 < 0.005 < 0.005 0.003 0.004 0.005 0.005
39532 Malathion .005 22 0 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005
39542 Parathion .004 22 0 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004
39572 Diazinon .002 22 0 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002
39632 Atrazine .001 22 95 < 0.001 0.002 0.004 0.005 0.007 0.008 0.008
46342 Alachlor .002 22 0 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002
49260 Acetochlor .002 22 0 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002
82630 Metribuzin .004 22 5 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 0.014
82660 Diethylanaline .003 22 0 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003
82661 Trifluralin .002 22 18 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 0.004 0.005
82663 Ethalfluralin .004 22 0 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004
82664 Phorate .002 22 0 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002
82665 Terbacil .007 22 0 < 0.007 < 0.007 < 0.007 < 0.007 < 0.007 < 0.007 < 0.007
82666 Linuron .002 22 0 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002
82667 Methyl parathion .006 22 0 < 0.006 < 0.006 < 0.006 < 0.006 < 0.006 < 0.006 < 0.006
82668 EPTC .002 22 0 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002
82669 Pebulate .004 22 0 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004
82670 Tebuthiuron .010 22 14 < 0.010 < 0.010 < 0.010 < 0.010 < 0.010 0.010 0.010
82671 Molinate .004 22 0 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004
82672 Ethoprop .003 22 0 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003
82673 Benfluralin .002 22 5 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 0.004
82674 Carbofuran .003 22 0 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003
82675 Terbufos .013 22 5 < 0.013 < 0.013 < 0.013 < 0.013 < 0.013 < 0.013 0.013
82676 Pronamide .003 22 0 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003
82677 Disulfoton .017 22 0 < 0.017 < 0.017 < 0.017 < 0.017 < 0.017 < 0.017 < 0.017
82678 Triallate .002 22 55 < 0.002 < 0.002 < 0.002 0.002 0.003 0.004 0.006
82679 Propanil .004 22 0 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004
82680 Carbaryl .003 22 0 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003
82681 Thiobencarb .002 22 0 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002
82682 Dachthal (DCPA) .002 22 14 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 0.002 0.002
82683 Pendimethalin .004 22 0 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004
82684 Napropamide .003 22 0 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003
82685 Propargite .013 22 0 < 0.013 < 0.013 < 0.013 < 0.013 < 0.013 < 0.013 < 0.013
82686 Azinphos methyl .001 22 0 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001
82687 Permethrin .005 22 0 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005
91063 Diazinon-d10 (%) .100 22 100 81.10 84.71 94.33 99.47 110.0 115.2 117.8
91064 Terbuthylazin (%) .100 14 100 98.09 98.09 103.2 107.8 113.1 134.3 134.3
91065 HCH alpha-D6 (%) .100 22 100 75.57 85.67 91.96 94.25 100.0 108.0 117.8
Return to Results