LOCATION.-- Lat 40°37'48", long 87°43'26" (NAD of 1927), in NW1/4NE1/4 sec.16, T.25 N., R.12 W., Iroquois County, Hydrologic Unit 07120002, on pier at downstream side of bridge on County Highway 9,200 ft downstream from Mud Creek, 1 mi west of Milford, and at mile 23.9. | |
DRAINAGE AREA.-- 446 mi2. | |
PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE | |
DISCHARGE: July 1948 to current year. | |
STAGE: Water years 1994 to current year. | |
SURFACE-WATER QUALITY | |
CHEMICAL: Water years 1978-91, and 1999 to 2004. | |
MISCELLANEOUS: Water years 2004 and 2005; Contaminants in streambed sediments, August 1999; contaminants in fish tissue, August 1999. | |
BIOLOGICAL | |
ALGAE: Water years 1999, 2002-04. | |
BENTHIC MACROINVERTEBRATES: Water years 1999, 2002-04. | |
FISH: Water years 1999, 2002-04. | |
HABITAT: Water years 1999-2000, 2002-04. | |
REVISED RECORDS.-- WDR IL-75-1: Drainage area. | |
GAGE.-- Water-stage recorder and phone telemeter. Datum of gage is 622.00 ft above NGVD of 1929 (621.80 ft NAVD 1988). Prior to July 23, 1970, nonrecording gage at same site and datum. | |
EXTREMES FOR PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 22,900 ft3/s, Feb. 21, 1951, gage height, 20.90 ft, from rating curve extended above 8,200 ft3/s; maximum gage height, 28.16 ft, Apr. 12, 1994, discharge, 19,400 ft3/s; minimum discharge, 2.0 ft3/s, Sept. 1, 2, 7, 1972, Oct. 8, 1994. | |
REMARKS FOR CURRENT YEAR.--Algae community samples were collected as part of the National Water-Quality Assessment program (NAWQA) in the lower Illinois River Basin. A quantitative sample was collected in accordance with NAWQA protocols (Cuffney and others, 1993). Reach A is located 512 ft downstream of the the 1100 N Road bridge (which is 2.5 stream miles downstream of the gage), and continues downstream for 820 ft which includes the area next to the gaging station. |
PERIPHYTON ALGAE, QUANTITATIVE, DTH (Depositional-targeted habitat) | |||
---|---|---|---|
[sp., species; Chlorophyta, Green algae; Cyanophyta, Blue-green algae; Chrysophyta, Golden algae, for example diatoms; Cryptophyta, Cryptophytes; Euglenophyta, Euglenoids; Pyrrhophyta, Dinoflagellates; Rhodophyta, Red algae] | |||
Quantitative sample | |||
Phylum | |||
Taxon | Cells (number/cm2) | Biovolume (biovolume/cm2) | |
Reach A 7/23/1999 | |||
Chrysophyta | |||
Amphora copulata (Kützing) Schoeman et Archibald | 470.41506 | 786788.6772 | |
Amphora montana Krasske | 470.41506 | 101155.1473 | |
Amphora ovalis (Kützing) Kützing | 219.68437 | 1173287.553 | |
Amphora pediculus (Kützing) Grunow | 940.83012 | 92057.62114 | |
Amphora veneta Kützing | 219.68437 | 127592.1966 | |
Caloneis bacillum (Grunow) Cleve | 235.2074 | 101089.2663 | |
Cocconeis placentula Ehrenberg | 439.36899 | 331301.5252 | |
Cocconeis placentula var. euglypta (Ehrenberg) Cleve | 219.68437 | 151592.1868 | |
Cocconeis placentula var. lineata (Ehrenberg) Van Heurck | 235.2074 | 266511.8867 | |
Craticula citrus (Krasske) Reichardt | 235.2074 | 77406.12969 | |
Cyclotella meneghiniana Kützing | 1176.03752 | 1015417.009 | |
Cymatopleura solea var. apiculata (Smith) Ralfs | 235.2074 | 1434343.695 | |
Cymbella affinis Kützing | 705.62246 | 418102.4903 | |
Diatoma vulgaris Bory | 439.36899 | 1606078.743 | |
Diploneis parma Cleve | 219.68437 | 1647852.459 | |
Encyonema prostratum (Berkeley) Kützing | 235.2074 | 1669764.349 | |
Fallacia pygmaea (Kützing) Stickle et Mann | 705.62246 | 768564.5056 | |
Fallacia tenera (Hustedt) Mann | 439.36899 | 68314.55366 | |
Gomphonema angustatum (Kützing) Rabenhorst | 235.2074 | 73823.98214 | |
Gomphonema kobayasii Kociolek et Kingston | 219.68437 | 36622.23685 | |
Gomphonema minutum (Agardh) Agardh | 470.41506 | 156710.4603 | |
Gomphonema olivaceum (Lyngbye) Kützing | 219.68437 | 85822.13324 | |
Gomphonema parvulum (Kützing) Kützing | 329.52668 | 84073.33476 | |
Gyrosigma acuminatum (Kützing) Rabenhorst | 1058.43369 | 7431251.708 | |
Gyrosigma attenuatum (Kützing) Rabenhorst | 235.2074 | 2285754.141 | |
Gyrosigma scalproides (Rabenhorst) Cleve | 14700.47151 | 21540258.24 | |
Hantzschia amphioxys (Ehrenberg) Grunow | 235.2074 | 248032.9138 | |
Hippodonta capitata (Ehrenberg) Lange-Bertalot, Metzeltin et Witkowski | 219.68437 | 130855.9287 | |
Mayamaea agrestis (Hustedt) Lange-Bertalot | 219.68437 | 13953.48123 | |
Melosira varians Agardh | 1098.4226 | 5573890.607 | |
Navicula canalis Patrick | 940.83012 | 312912.1197 | |
Navicula capitatoradiata Germain | 470.41506 | 271251.207 | |
Navicula cincta (Ehrenberg) Ralfs | 235.2074 | 147321.0942 | |
Navicula cryptocephala Kützing | 439.36899 | 148684.9926 | |
Navicula cryptotenella Lange-Bertalot ex Krammer et Lange-Bertalot | 235.2074 | 62144.28828 | |
Navicula erifuga Lange-Bertalot | 21756.69769 | 11087490.65 | |
Navicula exilis Kützing | 1411.24518 | 502642.5889 | |
Navicula germainii Wallace | 8467.47136 | 3845538.952 | |
Navicula gregaria Donkin | 1411.24518 | 387880.3567 | |
Navicula gysingensis Foged | 235.2074 | 22018.11282 | |
Navicula kotschyi Grunow | 219.68437 | 48332.33425 | |
Navicula lanceolata (Agardh) Ehrenberg | 439.36899 | 553352.4264 | |
Navicula libonensis Schoeman | 235.2074 | 64653.65017 | |
Navicula minima Grunow | 470.41506 | 18872.11608 | |
Navicula reichardtiana Lange-Bertalot | 439.36899 | 71062.74958 | |
Navicula rostellata Kützing | 1411.24518 | 1250916.184 | |
Navicula symmetrica Patrick | 439.36899 | 216356.4067 | |
Navicula tenelloides Hustedt | 219.68437 | 36336.23636 | |
Navicula trivialis Lange-Bertalot | 1411.24518 | 1538826.133 | |
Nitzschia acicularis (Kützing) Smith | 878.73798 | 164377.6316 | |
Nitzschia aequorea Hustedt | 219.68437 | 2573382.71 | |
Nitzschia agnita Hustedt | 235.2074 | 23603.89993 | |
Nitzschia angustatula Lange-Bertalot | 235.2074 | 86963.86236 | |
Nitzschia dissipata (Kützing) Grunow | 235.2074 | 59795.66477 | |
Nitzschia dissipata var. media (Hantzsch) Grunow | 219.68437 | 53987.10001 | |
Nitzschia frustulum (Kützing) Grunow | 823.22629 | 40390.37954 | |
Nitzschia intermedia Hantzsch ex Cleve et Grunow | 235.2074 | 216050.4841 | |
Nitzschia liebethruthii Rabenhorst | 219.68437 | 23832.75985 | |
Nitzschia linearis (Agardh ex Smith) Smith | 219.68437 | 653657.2752 | |
Nitzschia palea (Kützing) Smith | 1881.66024 | 562209.0511 | |
Nitzschia palea var. debilis (Kützing) Grunow | 588.01863 | 100170.1085 | |
Nitzschia palea var. tenuirostris Grunow | 219.68437 | 75858.01033 | |
Nitzschia pusilla Grunow | 1176.03752 | 158099.9454 | |
Nitzschia sigma (Kützing) Smith | 235.2074 | 2503910.178 | |
Nitzschia sociabilis Hustedt | 470.41506 | 107644.2079 | |
Nitzschia solita Hustedt | 439.36899 | 117209.4725 | |
Nitzschia thermalis Kützing | 219.68437 | 36167.72527 | |
Planothidium lanceolatum (Brébisson ex Kützing) Lange-Bertalot | 235.2074 | 31306.65768 | |
Reimeria sinuata (Gregory) Kociolek et Stoermer | 439.36899 | 72624.72831 | |
Rhoicosphenia abbreviata (Agardh) Lange-Bertalot | 470.41506 | 239838.5264 | |
Sellaphora pupula (Kützing) Meresckowsky | 219.68437 | 123509.5669 | |
Simonsenia delognei (Grunow) Lange-Bertalot | 470.41506 | 26388.38439 | |
Staurosira construens var. venter (Ehrenberg) Hamilton | 235.2074 | 21790.2486 | |
Surirella angusta Kützing | 439.36899 | 481853.0232 | |
Surirella gracilis (Smith) Grunow | 219.68437 | 235026028 | |
Surirella minuta Brébisson | 470.41506 | 344832.9615 | |
Surirella splendida (Ehrenberg) Kützing | 235.2074 | 5919040.921 | |
Surirella turgida Smith | 219.68437 | 950915.05 | |
Synedra parasitica (Smith) Hustedt | 235.2074 | 20500.09602 | |
Synedra parasitica var. subconstricta (Grunow) Hustedt | 219.68437 | 21748.75263 | |
Tabularia tabulata (Agardh) Snoeijs | 235.2074 | 428854.0758 | |
Tryblionella apiculata Gregory | 219.68437 | 536178.4134 | |
Tryblionella calida (Grunow) Mann | 705.62246 | 1555008.842 | |
Tryblionella hungarica (Grunow) Mann | 470.41506 | 415874.4229 | |
Tryblionella victoriae Grunow | 659.05336 | 570174.6431 | |
Cyanophyta | |||
Anabaena aequalis Borge | 35020.74438 | 875518.6095 | |
Anabaena inaequalis Bornet & Flahault | 1831.07344 | 45776.836 | |
Oscillatoria limnetica Lemmermann | 15733.95762 | 544652.6559 | |
Unknown Cyanophyte Oscillatoriaceae sp. 1 MSU | 8109.03952 | 634502.4201 | |
PERIPHYTON ALGAE, QUANTITATIVE, RTH (Richest-targeted habitat, cobbles or snags) | |||
---|---|---|---|
[sp., species; Chlorophyta, Green algae; Cyanophyta, Blue-green algae; Chrysophyta, Golden algae, for example diatoms; Cryptophyta, Cryptophytes; Euglenophyta, Euglenoids; Pyrrhophyta, Dinoflagellates; Rhodophyta, Red algae] | |||
Quantitative sample | |||
Phylum | |||
Taxon | Cells (number/cm2) | Biovolume (biovolume/cm2) | |
Reach A 7/23/1999 | |||
Chrysophyta | |||
Amphora pediculus (Kützing) Grunow | 74.65598 | 7304.88085 | |
Cocconeis placentula Ehrenberg | 447.93616 | 337761.5089 | |
Cocconeis placentula var. euglypta (Ehrenberg) Cleve | 223.96808 | 154548.1411 | |
Cocconeis placentula var. lineata (Ehrenberg) Van Heurck | 74.65598 | 84592.17731 | |
Craticula molestiformis (Hustedt) Lange-Bertalot | 671.90424 | 78528.39819 | |
Cylindrotheca gracilis (Brébisson) Grunow | 74.65598 | 31264.28349 | |
Cymbella tumida (Brébisson ex Kützing) Van Heurck | 522.59213 | 1446909.605 | |
Fallacia pygmaea (Kützing) Stickle et Mann | 74.65598 | 81315.34866 | |
Gomphoneis herculeana (Ehrenberg) Cleve | 74.65598 | 503094.6386 | |
Gomphonema kobayasii Kociolek et Kingston | 373.28011 | 62227.24266 | |
Gomphonema minutum (Agardh) Agardh | 559.9202 | 186527.5152 | |
Gyrosigma scalproides (Rabenhorst) Cleve | 671.90424 | 984525.6208 | |
Mayamaea atomus (Kützing) Lange-Bertalot | 1866.4006 | 52342.10365 | |
Mayamaea atomus var. permitis (Hustedt) Lange-Bertalot | 485.26415 | 3639966.389 | |
Melosira varians Agardh | 223.96808 | 1136514.833 | |
Navicula angusta Grunow | 74.65598 | 15244.68393 | |
Navicula capitatoradiata Germain | 223.96808 | 129144.7005 | |
Navicula cincta (Ehrenberg) Ralfs | 74.65598 | 46760.43638 | |
Navicula cryptotenella Lange-Bertalot ex Krammer et Lange-Bertalot | 4703.32965 | 1242669.549 | |
Navicula difficillima Hustedt | 74.65598 | 1647.55147 | |
Navicula exilis Kützing | 447.93616 | 159541.2295 | |
Navicula germainii Wallace | 485.26415 | 220384.8246 | |
Navicula gregaria Donkin | 149.31203 | 41038.37113 | |
Navicula helensis Schulz | 149.31203 | 42296.46982 | |
Navicula ingenua Hustedt | 74.65598 | 3234.32177 | |
Navicula kotschyi Grunow | 74.65598 | 16424.91807 | |
Navicula lenzii Hustedt ex Schmidt | 74.65598 | 559994.506 | |
Navicula menisculus Schumann | 37.32799 | 13076.15802 | |
Navicula minima Grunow | 149.31203 | 5990.10151 | |
Navicula phyllepta Kützing | 1119.84039 | 329233.0747 | |
Navicula reichardtiana Lange-Bertalot | 373.28011 | 60373.65309 | |
Navicula schroeterii Meister | 74.65598 | 125773.8829 | |
Navicula subminuscula Manguin | 410.60809 | 29541.69177 | |
Navicula symmetrica Patrick | 2015.71264 | 1041306.23 | |
Navicula tenelloides Hustedt | 298.62405 | 49393.0181 | |
Navicula upsaliensis (Grunow) Peragallo | 149.31203 | 28188.39418 | |
Nitzschia acicularis (Kützing) Smith | 74.65598 | 13965.22451 | |
Nitzschia amphibia Grunow | 74.65598 | 13867.36247 | |
Nitzschia angustatula Lange-Bertalot | 37.32799 | 13801.37778 | |
Nitzschia capitellata Hustedt | 74.65598 | 28177.66857 | |
Nitzschia clausii Hantzsch | 74.65598 | 9738.0357 | |
Nitzschia dissipata (Kützing) Grunow | 821.21626 | 208773.9254 | |
Nitzschia frustulum (Kützing) Grunow | 821.21626 | 42422.73157 | |
Nitzschia inconspicua Grunow | 223.96808 | 7736.20687 | |
Nitzschia microcephala Grunow | 74.65598 | 8106.59648 | |
Nitzschia palea (Kützing) Smith | 37.32799 | 11152.98787 | |
Nitzschia palea var. debilis (Kützing) Grunow | 298.62405 | 50871.18326 | |
Nitzschia sociabilis Hustedt | 74.65598 | 17083.38979 | |
Reimeria sinuata (Gregory) Kociolek et Stoermer | 111.98404 | 18510.20592 | |
Rhoicosphenia abbreviata (Agardh) Lange-Bertalot | 933.2003 | 475787.031 | |
Simonsenia delognei (Grunow) Lange-Bertalot | 1157.16838 | 64912.47116 | |
Tryblionella hungarica (Grunow) Mann | 74.65598 | 66000.2522 | |
Cyanophyta | |||
Unknown Cyanophyte Oscillatoriaceae sp. 1 MSU | 3782.7385 | 295985.3293 | |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |