LOCATION.-- Lat 42°01'34", long 88°15'20" (NAD of 1983), in SE1/4NW1/4 sec.19, T.41 N., R.9 E., Cook County, Hydrologic Unit 07120006, on right bank 35 ft upstream from bridge on Villa Street in Elgin, and at mile 2.3. | |
DRAINAGE AREA.-- 35.2 mi2. | |
PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE | |
DISCHARGE: August 1951 to current year. | |
STAGE: Water years 1994 to current year. | |
SURFACE-WATER QUALITY | |
CHEMICAL: Water years 1977-91. | |
MISCELLANEOUS: Water year 2000; contaminants in streambed sediments, water year 2000. | |
BIOLOGICAL | |
ALGAE: Water year 2000. | |
BENTHIC MACROINVERTEBRATES: Water year 2000. | |
FISH: Water year 2001. | |
HABITAT: Water year 2000-01. | |
REVISED RECORDS.-- WSP 1338: 1952-53. WDR IL-75-1: Drainage area. | |
GAGE.-- Water-stage recorder and phone telemeter. Datum of gage is 716.00 ft above NGVD of 1929 (715.74 ft NAVD 1988). | |
EXTREMES FOR PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 1,180 ft3/s, Feb. 21, 1997, gage height, 6.78 ft; no flow, July 10, 1957, Sept. 14, 1958, July 18, 1989, Oct. 6, 1997. | |
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 begins 68 feet upstream of Villa Creek Bridge and continues upstream for 492 feet. | |
| 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 7/15/2000 | |||
| Chrysophyta | |||
| Achnanthes conspicua Mayer | 12908.39085 | 975395.863 | |
| Achnanthes sp. 1 ? | 1780.46709 | 58158.95023 | |
| Achnanthidium minutissimum (Kützing) Czarnecki | 1780.46709 | 96808.65579 | |
| Amphora pediculus (Kützing) Grunow | 73889.41096 | 7371941.357 | |
| Aulacoseira muzzanensis (Meister) Krammer | 1780.46709 | 5993520.53 | |
| Cocconeis pediculus Ehrenberg | 890.23354 | 2858596.335 | |
| Cocconeis placentula Ehrenberg | 890.23354 | 648581.0176 | |
| Cocconeis placentula var. euglypta (Ehrenberg) Cleve | 4451.16871 | 3056466.221 | |
| Cocconeis placentula var. lineata (Ehrenberg) Van Heurck | 4451.16871 | 4985336.408 | |
| Cyclotella bodanica var. affinis (Grunow) Cleve-Euler | 890.23354 | 445116.7714 | |
| Cyclotella meneghiniana Kützing | 890.23354 | 758973.6904 | |
| Cyclotella ocellata Pantocsek | 890.23354 | 169128.4698 | |
| Diploneis peterseni Hustedt | 1780.46709 | 13355283.61 | |
| Fragilaria capucina var. mesolepta Rabenhorst | 890.23354 | 306917.3573 | |
| Gomphonema kobayasii Kociolek et Kingston | 890.23354 | 146650.0761 | |
| Gomphonema olivaceum (Lyngbye) Kützing | 890.23354 | 347779.6015 | |
| Gyrosigma acuminatum (Kützing) Rabenhorst | 2670.70162 | 18750967.78 | |
| Gyrosigma scalproides (Rabenhorst) Cleve | 890.23354 | 1304438.461 | |
| Luticola mutica (Kützing) Mann | 890.23354 | 516362.495 | |
| Navicula cryptocephala Kützing | 890.23354 | 299582.6621 | |
| Navicula cryptotenella Lange-Bertalot ex Krammer et Lange-Bertalot | 16469.32602 | 4259227.17 | |
| Navicula gregaria Donkin | 890.23354 | 239784.0797 | |
| Navicula minima Grunow | 22700.96381 | 905698.2528 | |
| Navicula recens Lange-Bertalot | 12908.39085 | 6467787.8 | |
| Navicula tantula Hustedt | 890.23354 | 45099.25595 | |
| Navicula tripunctata (Müller) Bory | 6231.63679 | 5819955.772 | |
| Navicula veneta Kützing | 1780.46709 | 280972.2904 | |
| Nitzschia dissipata (Kützing) Grunow | 4451.16871 | 1133479.156 | |
| Nitzschia frustulum (Kützing) Grunow | 58755.43575 | 2924307.351 | |
| Planothidium lanceolatum (Brébisson ex Kützing) Lange-Bertalot | 4451.16871 | 602434.7634 | |
| Reimeria sinuata (Gregory) Kociolek et Stoermer | 5341.40325 | 896278.6324 | |
| Rhoicosphenia abbreviata (Agardh) Lange-Bertalot | 11573.04004 | 5883160.667 | |
| Sellaphora seminulum (Grunow) Mann | 890.23354 | 65478.12951 | |
| Stephanodiscus medius Hĺkansson | 4451.16871 | 1072393.209 | |
| Cyanophyta | |||
| Oscillatoria princeps Vaucher | 13951.4264 | 1020469.617 | |
| Oscillatoria sp. 1? | 17937.54823 | 448438.7057 | |
| Phormidium minnesotense (Tilden) Drouet | 32885.50508 | 385167.1432 | |
| Phormidium tenue (Agardh ex Gomont) Anagnostidis & Komárek | 21923.67006 | 3760270.859 | |
| Rhodophyta | |||
| Unknown Rhodophyte Florideophycidae (chantransia) | 103639.1675 | 207423896.9 | |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |