Station list     Available data
ILLINOIS RIVER BASIN


05536275       THORN CREEK AT THORNTON, IL

 

LOCATION.-- Lat 41°34'06", long 87°36'28" (NAD of 1927), in SE1/4NW1/4 sec.34, T.36 N., R.14 E., Cook County, Hydrologic Unit 07120003, on right bank at downstream side of bridge on Margaret Street in Thornton, 1.0 mi downstream from North Creek, and at mile 4.2.

 

DRAINAGE AREA.-- 104 mi2.

 

PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE

 

DISCHARGE: May 1948 to current year. Prior to October 1974, records published with those for streams in the St. Lawrence River basin (WSP 1307, 1727, 1911, 2111, WDR IL 1971-74).

 

STAGE: Water years 1994-2002.

SURFACE-WATER QUALITY

 

CHEMICAL: Water years 1979-91.

 

REVISED RECORDS.-- WSP 1707: Drainage area.

 

GAGE.-- Water-stage recorder, and phone telemeter. Datum of gage is 586.43 ft above NGVD of 1929. Prior to Dec. 18, 1948, nonrecording gage at same site and datum.

 

REMARKS.-- Effluent from sewage-treatment plant upstream consists of publicly supplied water from Lake Michigan and ground water sources.

 

EXTREMES FOR PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 4,700 ft3/s, July 13, 1957, gage height, 16.00 ft; maximum gage height, 17.06 ft, June 14, 1981, discharge, 4,140 ft3/s, minimum daily discharge, 4.4 ft3/s, Sept. 11, 1949.

 

EXTREMES OUTSIDE PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Flood of Apr. 5, 1947, reached a stage of 14.34 ft (from floodmark), discharge, 4,200 ft3/s.

 

REMARKS FOR CURRENT YEAR.-- Records fair. Effluent from sewage-treatment plant upstream averaged 24.0 ft3/s during the year. The maximum monthly was 36.8 ft3/s in May, and the minimum was 15.5 ft3/s in September.

DISCHARGE, in CFS, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAYOCTNOVDECJANFEBMARAPRMAYJUNJULAUGSEP
 
131 51 233 40 254 46 68 74 54 36 24 19 
228 198 141 44 218 61 273 69 51 35 26 33 
327 191 89 46 124 114 304 58 49 35 24 29 
435 101 73 45 83 82 163 54 50 66 26 22 
5329 68 70 46 63 70 98 52 50 70 32 20 
 
6173 57 74 47 57 86 80 68 48 39 25 22 
769 52 65 46 54 225 80 64 48 35 24 22 
850 50 60 46 54 567 258 161 49 32 22 23 
942 46 58 45 64 893 1170 710 46 101 23 21 
1039 45 55 45 212 631 539 564 43 53 23 21 
 
1138 45 57 44 203 285 267 437 68 35 22 24 
12252 43 60 44 108 203 187 2430 53 30 22 21 
13272 42 61 44 79 174 132 2150 45 28 21 20 
14965 48 67 46 65 133 95 834 55 27 20 21 
15494 47 74 51 59 101 80 361 74 25 21 22 
 
16266 44 67 56 57 81 80 302 53 24 27 22 
17155 42 117 49 52 74 78 325 43 26 28 20 
1890 43 115 45 50 70 75 208 41 26 22 27 
1975 50 90 43 63 68 69 132 49 28 40 27 
2074 46 87 43 312 71 214 107 53 25 33 65 
 
2155 45 69 43 286 69 186 107 39 27 26 35 
2249 45 64 42 149 66 166 115 36 25 25 29 
23221 42 68 44 74 63 93 115 39 25 27 25 
24247 46 60 49 58 60 81 324 36 37 26 23 
25290 59 55 46 53 57 113 204 38 39 26 22 
 
26157 54 53 44 58 59 65 113 49 26 24 20 
2782 53 51 45 54 60 115 87 100 34 23 26 
2865 48 50 46 48 70 384 76 57 31 21 39 
2958 53 45 49 --- 80 229 69 43 33 20 29 
3053 256 42 55 --- 99 115 66 39 32 20 25 
 
3150 --- 41 115 --- 78 --- 60 --- 26 19 --- 

TOTAL48312010231114933011479658571049614981111762774
MEAN155.867.0074.5548.16107.5154.7195.2338.649.9335.8424.5825.80
MAX965256233115312893117024301001014065
MIN274241404846655236241919


STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1948 - 2002, BY WATER YEAR (WY)
MEAN60.9085.9796.9899.14124.0176.6179.3137.0115.673.3258.7858.03
MAX356385391328421534362399445333236372
(WY)195519911983199319971979195019961993199619681961
MIN12.514.315.516.226.637.434.029.324.921.714.911.7
(WY)195119491951195419631981198619581948195219481948

SUMMARY STATISTICSFOR 2001 CALENDAR YEARFOR 2002 WATER YEARWATER YEARS 1948 - 2002
ANNUAL TOTAL35410     38950         
ANNUAL MEAN97.01106.7      105.6      
HIGHEST ANNUAL MEAN199         1993
LOWEST ANNUAL MEAN51.5      1963
HIGHEST DAILY MEAN1500         Feb 102430             May 123810         Nov 28 1990
LOWEST DAILY MEAN23         Jul 2019             A4.4      Sep 11 1949
ANNUAL SEVEN-DAY MINIMUM25         Jul 1421             Aug 269.0      Sep 14 1948
MAXIMUM PEAK FLOW2920             May 124700      BJul 13 1957
MAXIMUM PEAK STAGE14.04        May 1217.06 CJun 14 1981
INSTANTANEOUS LOW FLOW18      D
10 PERCENT EXCEEDS223     223         226         
50 PERCENT EXCEEDS53     53         47         
90 PERCENT EXCEEDS32     24         23         

A - Aug. 31, Sept. 1.

B - Gage height, 16.00 ft.

C - Discharge, 4,140 ft3/s.

D - Aug. 29, 30, 31, Sept. 26.



Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data