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 7,780 8,370 13,700 16,800 19,400 23,900 45,600 Cubic meters per second 1,827 220 237 388 476 549 677 1,291
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) 32 8.5 8.5 9.5 10.0 11.0 11.5 12.0 00076 Turbidity (NTU) 32 0.1 0.2 0.3 0.4 0.5 1.1 1.1 00095 Conductance (uS/cm) 32 637.0 652.0 685.5 711.0 770.0 800.0 811.0 00300 Dissolved oxygen 32 7.0 7.4 8.3 9.3 10.0 11.2 11.3 00400 pH (standard units) 32 7.2 7.7 8.0 8.2 8.2 8.3 8.4 00452 CO3 (filtered) 32 0.0 0.0 0.0 0.0 0.0 3.0 5.0 00453 HCO3 (filtered) 32 141.0 143.0 152.0 159.0 164.5 174.0 182.0 39086 Alk (filtered, as CaCO3) 32 116.0 121.0 125.0 130.0 134.5 143.0 149.0 70331 % finer than 62 microns 9 11.8 11.8 37.0 76.4 90.2 100.0 100.0 80154 Suspended sediment 27 1.0 1.0 2.0 2.0 12.0 26.0 26.0
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 .020 32 28 < 0.020 < 0.020 < 0.020 < 0.020 0.023 0.065 0.079
00613 NO2-N .010 32 13 < 0.010 < 0.010 < 0.010 < 0.010 < 0.010 0.014 0.020
00623 Org+NH3-N (filtered) .200 32 56 < 0.200 < 0.200 < 0.200 0.200 0.200 0.221 0.250
00625 Org+NH3-N (whole-water) .200 32 63 < 0.200 < 0.200 < 0.200 0.200 0.200 0.291 0.372
00631 NO2+NO3-N .050 32 100 0.150 0.180 0.237 0.255 0.281 0.330 0.336
00665 Total P (whole-water) .050 32 50 < 0.050 < 0.050 < 0.050 < 0.050 0.020 0.050 0.050
00666 Total P (filtered) .050 32 38 < 0.050 < 0.050 < 0.050 < 0.050 0.010 0.023 0.050
00671 PO4-P .010 32 75 < 0.010 < 0.010 < 0.010 0.002 0.005 0.007 0.010
00681 DOC .300 31 100 2.652 2.700 2.800 3.000 3.100 3.383 3.800
00689 SOC .200 30 50 < 0.100 < 0.100 < 0.200 < 0.200 0.200 0.300 0.300
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 32 100 51.89 53.00 55.56 59.55 62.61 65.00 65.61
00925 Magnesium .010 32 100 17.52 18.00 19.29 20.65 21.29 23.25 23.69
00930 Sodium .200 32 100 46.91 47.21 51.34 54.58 59.87 64.00 70.00
00935 Potassium .010 32 100 2.350 2.580 2.695 2.810 2.900 3.000 3.100
00940 Chloride .010 32 100 27.66 30.67 33.96 38.00 44.28 47.00 52.00
00945 Sulfate .010 32 100 152.0 155.5 163.6 174.6 188.4 200.0 200.0
00950 Fluoride .100 32 100 0.207 0.229 0.257 0.293 0.300 0.400 0.405
00955 Silica .010 32 100 7.365 7.400 7.900 8.119 8.387 8.670 8.679
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 32 84 < 1.0 < 1.0 1.0 1.0 1.3 1.7 1.7
01005 Barium 1.0 23 100 71.4 72.0 74.0 76.0 81.0 87.0 87.0
01010 Beryllium 10.0 23 0 < 10.0 < 10.0 < 10.0 < 10.0 < 10.0 < 10.0 < 10.0
01020 Boron 16.0 30 100 56.3 59.1 64.9 69.5 78.7 90.0 100.0
01025 Cadmium 1.0 23 0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0
01030 Chromium 5.0 23 39 < 5.0 < 5.0 < 5.0 < 5.0 5.0 5.0 5.0
01035 Cobalt 3.0 20 0 < 3.0 < 3.0 < 3.0 < 3.0 < 3.0 < 3.0 < 3.0
01040 Copper 10.0 23 48 < 10.0 < 10.0 < 10.0 < 10.0 10.0 10.0 10.0
01046 Iron 10.0 32 9 < 10.0 < 10.0 < 10.0 < 10.0 < 10.0 10.0 17.0
01049 Lead 30.0 23 4 < 30.0 < 30.0 < 30.0 < 30.0 < 30.0 < 30.0 30.0
01056 Manganese 1.0 23 26 < 1.0 < 1.0 < 1.0 < 1.0 1.0 1.3 2.0
01060 Molybdenum 10.0 20 85 < 10.0 < 10.0 3.8 4.0 4.0 10.0 10.0
01065 Nickel 10.0 23 61 < 10.0 < 10.0 < 10.0 1.3 2.0 10.0 10.0
01075 Silver 1.0 23 0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0
01080 Strontium 0.5 32 100 593.8 600.0 630.8 656.9 707.9 750.0 760.0
01085 Vanadium 30.0 32 6 < 30.0 < 30.0 < 30.0 < 30.0 < 30.0 10.0 30.0
01090 Zinc 3.0 23 61 < 3.0 < 3.0 < 3.0 2.5 3.2 7.0 18.5
01095 Antimony 1.0 23 0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0
01106 Aluminum 10.0 20 35 < 10.0 < 10.0 < 10.0 < 10.0 2.8 7.5 10.0
01130 Lithium 4.0 32 100 18.5 19.8 22.2 24.4 25.9 28.0 28.0
01145 Selenium 1.0 32 100 1.0 1.1 1.5 1.8 2.0 2.2 2.3
22703 Uranium 1.0 19 100 2.9 2.9 3.0 3.0 3.3 4.0 4.0
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 25 0 < 0.007 < 0.007 < 0.007 < 0.007 < 0.007 < 0.007 < 0.007
04028 Butylate .002 25 0 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002
04035 Simazine .005 25 8 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 0.005 0.005
04037 Prometon .018 25 40 < 0.018 < 0.018 < 0.018 < 0.018 0.018 0.018 0.018
04040 Desethyl atrazine .002 25 32 < 0.002 < 0.002 < 0.002 < 0.002 0.002 0.003 0.004
04041 Cyanazine .004 25 0 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004
04095 Fonofos .003 25 0 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003
34253 alpha-HCH .002 25 0 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002
34653 p,p DDE .006 25 0 < 0.006 < 0.006 < 0.006 < 0.006 < 0.006 < 0.006 < 0.006
38933 Chlorpyrifos .004 25 0 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004
39341 gamma-HCH .004 25 0 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004
39381 Dieldrin .001 25 0 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001
39415 Metolachlor .002 25 80 < 0.002 < 0.002 0.002 0.003 0.004 0.005 0.011
39532 Malathion .005 25 0 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005
39542 Parathion .004 25 0 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004
39572 Diazinon .002 25 0 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002
39632 Atrazine .004 25 76 < 0.004 < 0.004 0.002 0.004 0.005 0.006 0.007
46342 Alachlor .002 25 36 < 0.002 < 0.002 < 0.002 < 0.002 0.003 0.004 0.004
49260 Acetochlor .002 25 0 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002
82630 Metribuzin .004 25 4 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 0.022
82660 Diethylanaline .003 25 0 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003
82661 Trifluralin .002 25 0 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002
82663 Ethalfluralin .004 25 0 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004
82664 Phorate .002 25 0 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002
82665 Terbacil .007 25 0 < 0.007 < 0.007 < 0.007 < 0.007 < 0.007 < 0.007 < 0.007
82666 Linuron .002 25 0 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002
82667 Methyl parathion .006 25 0 < 0.006 < 0.006 < 0.006 < 0.006 < 0.006 < 0.006 < 0.006
82668 EPTC .002 25 0 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002
82669 Pebulate .004 25 0 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004
82670 Tebuthiuron .010 25 24 < 0.010 < 0.010 < 0.010 < 0.010 < 0.010 0.010 0.010
82671 Molinate .004 25 4 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 0.004
82672 Ethoprop .003 25 0 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003
82673 Benfluralin .002 25 0 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002
82674 Carbofuran .003 25 0 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003
82675 Terbufos .013 25 0 < 0.013 < 0.013 < 0.013 < 0.013 < 0.013 < 0.013 < 0.013
82676 Pronamide .003 25 0 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003
82677 Disulfoton .017 25 0 < 0.017 < 0.017 < 0.017 < 0.017 < 0.017 < 0.017 < 0.017
82678 Triallate .001 25 0 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001 < 0.001
82679 Propanil .004 25 0 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004
82680 Carbaryl .003 25 0 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003
82681 Thiobencarb .002 25 0 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002
82682 Dachthal (DCPA) .002 25 68 < 0.002 < 0.002 < 0.002 0.002 0.002 0.003 0.004
82683 Pendimethalin .004 25 0 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004 < 0.004
82684 Napropamide .003 25 0 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003 < 0.003
82685 Propargite .070 25 0 < 0.070 < 0.070 < 0.070 < 0.070 < 0.070 < 0.070 < 0.070
82686 Azinphos methyl .010 25 0 < 0.010 < 0.010 < 0.010 < 0.010 < 0.010 < 0.010 < 0.010
82687 Permethrin .005 25 0 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005 < 0.005
91063 Diazinon-d10 (%) .100 25 100 73.60 81.20 89.30 94.85 103.7 122.8 143.0
91064 Terbuthylazin (%) .100 16 100 82.45 82.45 102.5 106.7 113.8 135.9 135.9
91065 HCH alpha-D6 (%) .100 25 100 73.53 79.31 91.21 95.35 100.0 112.0 113.0
29816 Antimony (ppm) 0.10 1 100 0.10 0.10 0.10 0.10 0.10 0.10 0.10
29818 Arsenic (ppm) 0.10 1 100 1.90 1.90 1.90 1.90 1.90 1.90 1.90
29820 Barium (ppm) 1.00 1 100 390.0 390.0 390.0 390.0 390.0 390.0 390.0
29822 Beryllium (ppm) 0.10 1 100 0.30 0.30 0.30 0.30 0.30 0.30 0.30
29826 Cadmium (ppm) 0.10 1 0 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50
29829 Chromium (ppm) 1.00 1 100 4.00 4.00 4.00 4.00 4.00 4.00 4.00
29832 Copper (ppm) 1.00 1 100 3.00 3.00 3.00 3.00 3.00 3.00 3.00
29836 Lead (ppm) 1.00 1 100 7.00 7.00 7.00 7.00 7.00 7.00 7.00
29839 Manganese (ppm) 10.0 1 100 130.0 130.0 130.0 130.0 130.0 130.0 130.0
29841 Mercury (ppm) 0.01 1 0 < 0.05 < 0.05 < 0.05 < 0.05 < 0.05 < 0.05 < 0.05
29843 Molybdenum (ppm) 5.00 1 0 < 25.00 < 25.00 < 25.00 < 25.00 < 25.00 < 25.00 < 25.00
29845 Nickel (ppm) 1.00 1 100 2.00 2.00 2.00 2.00 2.00 2.00 2.00
29847 Selenium (ppm) 0.10 1 100 0.10 0.10 0.10 0.10 0.10 0.10 0.10
29850 Silver (ppm) 0.50 1 0 < 2.50 < 2.50 < 2.50 < 2.50 < 2.50 < 2.50 < 2.50
29853 Vanadium (ppm) 1.00 1 100 8.00 8.00 8.00 8.00 8.00 8.00 8.00
29855 Zinc (ppm) 1.00 1 100 10.00 10.00 10.00 10.00 10.00 10.00 10.00
30221 Aluminum (%) 0.10 1 100 2.00 2.00 2.00 2.00 2.00 2.00 2.00
30244 Total carbon (%) 0.10 1 100 0.40 0.40 0.40 0.40 0.40 0.40 0.40
30269 Iron (%) 0.10 1 100 0.40 0.40 0.40 0.40 0.40 0.40 0.40
30292 Phosphorus (%) 0.01 1 100 0.01 0.01 0.01 0.01 0.01 0.01 0.01
30308 Sulfur (%) 0.10 1 0 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50 < 0.50
30317 Titanium (%) 0.01 0 . . . . . . . .
35031 Cobalt (ppm) 1.00 1 100 2.00 2.00 2.00 2.00 2.00 2.00 2.00
35040 Strontium (ppm) 0.01 1 100 70.00 70.00 70.00 70.00 70.00 70.00 70.00
35046 Uranium (ppm) 50.0 1 0 < 250.0 < 250.0 < 250.0 < 250.0 < 250.0 < 250.0 < 250.0
35050 Lithium (ppm) 1.00 1 100 6.00 6.00 6.00 6.00 6.00 6.00 6.00
49955 Thallium (ppm) 50.0 1 0 < 250.0 < 250.0 < 250.0 < 250.0 < 250.0 < 250.0 < 250.0
50465 Organic carbon (%) 0.10 1 100 0.10 0.10 0.10 0.10 0.10 0.10 0.10
Return to Results