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
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
 
1 28  27  67  40  30  89  249  101  647  26  24  63 
2 24  139  62  40  30  258  135  69  272  26  22  40 
3 27  84  60  40  31  152  85  55  147  36  26  37 
4 31  72  58  40  30  129  70  49  97  269  194  35 
5 27  460  112  46  29  996  65  55  77  75  67  29 
 
6 27  271  177  43  31  810  61  56  65  50  43  29 
7 25  101  111  41  34  349  57  46  55  41  36  32 
8 29  64  83  45  34  184  53  42  51  36  32  31 
9 34  53  76  45  31  108  49  40  48  33  25  31 
10 27  47  234  36  29  84  46  46  58  32  24  30 
 
11 24  43  300  36  29  84  43  80  156  29  31  28 
12 26  43  138  39  29  65  40  74  940  28  37  23 
13 25  44  78  42  29  60  41  179  761  27  27  26 
14 156  41  66  43  28  64  41  581  370  33  23  29 
15 92  35  60  38  29  63  40  529  270  38  22  28 
 
16 51  34  61  36  28  63  41  212  146  46  21  230 
17 38  39  61  37  29  62  67  102  110  35  22  67 
18 31  743  63  40  29  66  52  148  68  26  22  44 
19 29  1360  52  35  34  68  46  107  59  24  39  37 
20 29  796  43  33  98  64  54  79  45  24  31  35 
 
21 28  421  42  33  225  60  78  67  50  41  26  32 
22 27  275  44  35  157  56  53  123  56  68  22  28 
23 27  217  46  33  193  54  46  688  42  49  22  22 
24 27  532  50  30  231  68  44  350  37  30  34  26 
25 64  312  43  31  196  74  136  327  35  25  163  27 
 
26 43  186  41  34  114  186  84  226  36  24  162  28 
27 34  115  41  35  71  258  61  124  30  26  211  24 
28 32  99  41  34  67  151  53  103  31  29  637  21 
29 36  83  49  34  64  616  45  95  29  26  421  21 
30 33  76  52  31  ---  377  49  293  27  25  148  20 
 
31 29  ---  46  33  ---  394  ---  1040  ---  32  83  --- 

TOTAL 1160 6812 2457 1158 1989 6112 1984 6086 4815 1309 2697 1153
MEAN 37.4 227 79.3 37.4 68.6 197 66.1 196 160 42.2 87.0 38.4
MAX 156 1360 300 46 231 996 249 1040 940 269 637 230
MIN 24 27 41 30 28 54 40 40 27 24 21 20


STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1948 - 2004, BY WATER YEAR (WY)
MEAN 60.0 87.5 95.7 96.7 121 174 175 138 115 76.4 59.8 57.3
MAX 356 385 391 328 421 534 362 399 445 333 236 372
(WY) 1955 1991 1983 1993 1997 1979 1950 1996 1993 1996 1968 1961
MIN 12.5 14.3 15.5 16.2 26.1 37.4 34.0 29.3 24.9 21.7 14.9 11.7
(WY) 1951 1949 1951 1954 2003 1981 1986 1958 1948 1952 1948 1948

SUMMARY STATISTICS FOR 2003 CALENDAR YEAR FOR 2004 WATER YEAR WATER YEARS 1948 - 2004
ANNUAL TOTAL 33497    37732     
ANNUAL MEAN 91.8 103      105         
HIGHEST ANNUAL MEAN 199          1993
LOWEST ANNUAL MEAN 51.5       1963
HIGHEST DAILY MEAN 1360        Nov 19 1360          Nov 19 3810          Nov 28 1990
LOWEST DAILY MEAN 21        A 20          Sep 30 4.4       Sep 11 1949
ANNUAL SEVEN-DAY MINIMUM 23        Jan 19 24          Sep 24 9.0       Sep 14 1948
MAXIMUM PEAK FLOW 1640          Nov 19 4700      B Jul 13 1957
MAXIMUM PEAK STAGE 11.57     Nov 19 17.06 C Jun 14 1981
INSTANTANEOUS LOW FLOW 17          Sep 29,30
10 PERCENT EXCEEDS 224    232      225         
50 PERCENT EXCEEDS 36    45      46         
90 PERCENT EXCEEDS 25    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