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 to current year.

SURFACE-WATER QUALITY

 

CHEMICAL: Water years 1979-91.

 

REVISED RECORDS.-- WSP 1707: Drainage area.

 

GAGE.-- Water-stage recorder, phone telemeter, and crest-stage gage. 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 23.1 ft3/s during the year. The maximum monthly average was 32.8 ft3/s in March, and the minimum was 16.5 ft3/s in September.

Discharge, cubic feet per second, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004
DAILY MEAN VALUES
DAYOCTNOVDECJANFEBMARAPRMAYJUNJULAUGSEP
 
128 27 67 40 30 89 249 101 647 26 24 63 
224 139 62 40 30 258 135 69 272 26 22 40 
327 84 60 40 31 152 85 55 147 36 26 37 
431 72 58 40 30 129 70 49 97 269 194 35 
527 460 112 46 29 996 65 55 77 75 67 29 
 
627 271 177 43 31 810 61 56 65 50 43 29 
725 101 111 41 34 349 57 46 55 41 36 32 
829 64 83 45 34 184 53 42 51 36 32 31 
934 53 76 45 31 108 49 40 48 33 25 31 
1027 47 234 36 29 84 46 46 58 32 24 30 
 
1124 43 300 36 29 84 43 80 156 29 31 28 
1226 43 138 39 29 65 40 74 940 28 37 23 
1325 44 78 42 29 60 41 179 761 27 27 26 
14156 41 66 43 28 64 41 581 370 33 23 29 
1592 35 60 38 29 63 40 529 270 38 22 28 
 
1651 34 61 36 28 63 41 212 146 46 21 230 
1738 39 61 37 29 62 67 102 110 35 22 67 
1831 743 63 40 29 66 52 148 68 26 22 44 
1929 1360 52 35 34 68 46 107 59 24 39 37 
2029 796 43 33 98 64 54 79 45 24 31 35 
 
2128 421 42 33 225 60 78 67 50 41 26 32 
2227 275 44 35 157 56 53 123 56 68 22 28 
2327 217 46 33 193 54 46 688 42 49 22 22 
2427 532 50 30 231 68 44 350 37 30 34 26 
2564 312 43 31 196 74 136 327 35 25 163 27 
 
2643 186 41 34 114 186 84 226 36 24 162 28 
2734 115 41 35 71 258 61 124 30 26 211 24 
2832 99 41 34 67 151 53 103 31 29 637 21 
2936 83 49 34 64 616 45 95 29 26 421 21 
3033 76 52 31 --- 377 49 293 27 25 148 20 
 
3129 --- 46 33 --- 394 --- 1040 --- 32 83 --- 

TOTAL116068122457115819896112198460864815130926971153
MEAN37.422779.337.468.619766.119616042.287.038.4
MAX1561360300462319962491040940269637230
MIN242741302854404027242120


STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1948 - 2004, BY WATER YEAR (WY)
MEAN60.087.595.796.712117417513811576.459.857.3
MAX356385391328421534362399445333236372
(WY)195519911983199319971979195019961993199619681961
MIN12.514.315.516.226.137.434.029.324.921.714.911.7
(WY)195119491951195420031981198619581948195219481948

SUMMARY STATISTICSFOR 2003 CALENDAR YEARFOR 2004 WATER YEARWATER YEARS 1948 - 2004
ANNUAL TOTAL33497   37732     
ANNUAL MEAN91.8103     105         
HIGHEST ANNUAL MEAN199         1993
LOWEST ANNUAL MEAN51.5      1963
HIGHEST DAILY MEAN1360       Nov 191360         Nov 193810         Nov 28 1990
LOWEST DAILY MEAN21       A20         Sep 304.4      Sep 11 1949
ANNUAL SEVEN-DAY MINIMUM23       Jan 1924         Sep 249.0      Sep 14 1948
MAXIMUM PEAK FLOW1640         Nov 194700      BJul 13 1957
MAXIMUM PEAK STAGE11.57    Nov 1917.06 CJun 14 1981
INSTANTANEOUS LOW FLOW17         Sep 29,30
10 PERCENT EXCEEDS224   232     225         
50 PERCENT EXCEEDS36   45     46         
90 PERCENT EXCEEDS25   27     23         

A - June 28, July 2.

B - Gage Height, 16.00 ft.

C - Discharge, 4,140 ft3/s.



Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data