Station list     Available data
ILLINOIS RIVER BASIN


05531500       SALT CREEK AT WESTERN SPRINGS, IL



LOCATION.-- Lat 41°49'33", long 87°54'02", in NE1/4SE1/4 sec.31, T.39 N., R.12 E., Cook County, Hydrologic Unit 07120004, on left pier at upstream side of bridge on Wolf Road, in Cook County Forest Preserve, 0.5 mi north of Western Springs, and at mile 8.8.

DRAINAGE AREA.-- 115 mi2.

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE
 

DISCHARGE: October 1945 to current year.

 

STAGE: Water years 1994-2000.

SURFACE-WATER QUALITY
 

CHEMICAL: Water years 1978-91 and 1999-2000.

 

MISCELLANEOUS: Contaminants in streambed sediments, August 1998; contaminants in fish tissue, August 1998.

BIOLOGICAL: Benthic macroinvertebrates, July 1999; fish, August 1999 and September 2000.

REVISED RECORDS.-- WSP 1915: Drainage area. WRD IL-87-2: Drainage area. WRD IL-97-2: July 21 - Sept. 26, 1996.

GAGE.-- Water-stage recorder, phone telemeter, and crest-stage gage. Datum of gage is 624.93 ft above sea level. Prior to July 26, 1946, nonrecording gage at same site and datum.

REMARKS.-- Occasional regulation by sewage treatment plants upstream from station. Since May 28, 1996, some flow temporarily diverted for flood control to Elmhurst Quarry Flood Control Reservoir 12.3 miles upstream from gage.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 3,540 ft3/s, Aug. 17, 1987, gage height, 10.54 ft; minimum, no flow, May 27, 1998, due to bridge construction.

REMARKS FOR CURRENT YEAR.-- Records good except those for Aug. 22 to Sept. 30, which are fair, and those for July 3 to Aug. 21 and estimated daily discharges, which are poor.
DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000
DAILY MEAN VALUES
DAYOCTNOVDECJANFEBMARAPRMAYJUNJULAUGSEP
 
1270 53 55 65 67 138 69 183 264 104 334 58 
2160 55 51 58 63 124 70 174 302 99 302 53 
3172 55 61 68 67 105 73 164 263 682 210 50 
4329 55 72 108 64 98 74 117 186 631 156 48 
5270 52 580 94 64 91 72 103 219 e401 160 49 
 
6178 52 590 86 62 87 69 95 280 e235 208 47 
7125 50 384 81 67 84 88 89 215 e170 e250 45 
899 52 213 73 63 79 178 93 148 e130 e150 46 
986 55 144 81 68 80 172 505 113 e110 e94 44 
1078 61 123 119 80 78 151 480 90 391 e82 44 
 
1176 72 97 127 95 78 134 377 155 441 e73 202 
1274 77 84 122 90 82 119 414 350 319 e64 922 
1369 70 78 99 90 80 103 492 347 202 e60 819 
1470 52 76 87 87 78 98 237 428 152 e65 735 
1562 53 100 81 82 88 92 162 351 119 e61 451 
 
1671 51 99 76 87 139 102 155 215 102 e58 266 
1771 50 90 72 84 82 444 147 158 96 146 178 
1869 47 84 70 89 75 419 210 119 83 171 123 
1965 46 78 70 102 75 440 384 103 74 128 107 
2063 48 78 70 109 148 1100 375 127 73 94 122 
 
2160 48 74 e65 117 157 1250 258 165 69 79 133 
2255 50 74 e62 228 134 1170 185 149 65 69 213 
2360 90 e68 e69 400 126 867 148 123 62 66 412 
2458 95 e68 e64 527 146 618 121 206 57 60 544 
2554 68 e62 e66 588 140 421 98 528 e57 58 412 
 
2655 59 e62 e58 456 119 325 84 427 e56 53 253 
2757 55 65 e59 302 101 285 94 268 56 67 169 
2850 53 62 e60 207 91 238 244 184 50 79 148 
2953 54 62 e58 159 82 216 191 156 60 73 113 
3051 51 65 e63 --- 76 183 185 120 211 64 98 
 
3153 --- 63 67 --- 75 --- 213 --- 203 58 --- 

TOTAL306317293862239845643136964067776759556035926904
MEAN98.857.612577.4157101321219225179116230
MAX329955901275881571250505528682334922
MIN504651586275698490505344
CFSM.86.501.08.671.37.882.791.901.961.561.012.00
IN..99.561.25.781.481.013.122.192.191.801.162.23

e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1946 - 2000, BY WATER YEAR (WY)
MEAN83.910610811413221023616413694.510586.8
MAX331457500368444809565480388288795414
(WY)195519861983199319971979198319961996197819871972
MIN3.345.558.145.7912.446.141.824.825.610.63.083.33
(WY)194919491954195419541956194619461956194619481952

SUMMARY STATISTICSFOR 1999 CALENDAR YEARFOR 2000 WATER YEARWATER YEARS 1946 - 2000
ANNUAL TOTAL73971     57984     
ANNUAL MEAN203     158     131         
HIGHEST ANNUAL MEAN250         1993
LOWEST ANNUAL MEAN36.6      1953
HIGHEST DAILY MEAN1340         Apr 231250         Apr 213220         Aug 17 1987
LOWEST DAILY MEAN32         Sep 2644         Sep 9, 101.0      Aug 27 1950
ANNUAL SEVEN-DAY MINIMUM40         Sep 2046         Sep 42.1      Oct 15 1948
INSTANTANEOUS PEAK FLOW1520         Apr 203540         Aug 17 1987
INSTANTANEOUS PEAK STAGE7.89    Apr 2010.54    Aug 17 1987
INSTANTANEOUS LOW FLOW35         Sep 6, 7, 9.00 AMay 27 1998
ANNUAL RUNOFF (CFSM)1.761.381.14    
ANNUAL RUNOFF (INCHES)23.9318.7615.50    
10 PERCENT EXCEEDS491     379     300         
50 PERCENT EXCEEDS116     91     74         
90 PERCENT EXCEEDS52     55     15         
A - Due to bridge construction.

Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data