Station list     Available data
ILLINOIS RIVER BASIN


05570000       SPOON RIVER AT SEVILLE, IL

 

LOCATION.-- Lat 40°29'24", long 90°20'25" (NAD of 1927), in SE1/4NW1/4 sec.24, T.6 N., R.1 E., Fulton County, Hydrologic Unit 07130005, on left bank at downstream side of State Highway 95 bridge, 0.5 mi upstream from a railroad bridge, 0.5 mi northeast of Seville, 0.1 mi downstream from Shaw Creek, and at mile 39.2.
 

DRAINAGE AREA.-- 1,636 mi2.
 

PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE
 

DISCHARGE: July 1914 to current year. Monthly discharge only for some periods, published in WSP 1308.
 

STAGE: Water years 1994 to current year.

SURFACE-WATER QUALITY
 

CHEMICAL: Water years 1978-93.
 

SEDIMENT: Water years 1980-97, Feb. 2003 to current year.
 

MISCELLANEOUS: Sediment concentration and particle size, water years 1993, 1995-97, 2003.
 

REVISED RECORDS.-- WSP 1208: 1917, 1920, 1922, 1924, 1926-27, 1929(M). WSP 1308: 1919(M), 1936(M), 1938(M), 1942(M), 1945(M). WDR IL-75-1: Drainage area.
 

GAGE.-- Water-stage recorder, U.S. Army Corps of Engineers satellite telemeter, sediment sampler, and crest-stage gage. Datum of gage is 467.04 ft above NGVD of 1929. Datum of gage was incorrectly published water years 1927-1941. Prior to May 9, 1935, nonrecording gage 0.5 miles downstream at same datum. May 9, 1935 to June 30, 1976, nonrecording gage 0.47 miles downstream at same datum. July 1, 1976, to July 13, 1983, recording gage at present site and datum. July 14, 1983 to Sept. 18, 2000, recording gage 0.47 miles downstream at same datum.
 

EXTREMES FOR PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 37,300 ft3/s, Aug. 22, 1924, gage height, 30.77 ft, from graph based on gage readings; maximum gage height, 33.10 ft, July 26, 1993, discharge, 34,700 ft3/s; minimum observed discharge, 3.8 ft3/s, July 31, Aug. 27-29, 1914.

SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily, 4,630 mg/L, July 21, 1996; minimum daily, 10 mg/L, Feb. 5, 6, 1996.

SUSPENDED-SEDIMENT LOADS: Maximum daily, 128,000 tons, May 27, 1996; minimum daily, 2.9 tons, Feb. 6, 1996.
 

EXTREMES OUTSIDE PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Flood of 1883 reached a stage of about 33.0 ft, backwater from ice, discharge not determined.
 

REMARKS FOR CURRENT YEAR.-- Records fair except those for estimated daily discharges, which are poor.
Discharge, cubic feet per second, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
 
1 96  126  118  155  e97  e132  310  295  634  443  290  248 
2 94  123  123  e146  e106  e122  275  1250  e570  388  264  246 
3 94  118  123  e142  e117  e118  247  3010  e540  349  250  222 
4 95  117  e105  e142  e125  e123  334  1810  e550  325  343  172 
5 99  117  e95  e146  e137  e113  443  1710  e560  306  328  140 
 
6 98  122  e96  e160  e146  e110  369  2250  e520  280  255  104 
7 121  120  e97  e140  e132  e125  394  2560  e550  256  219  83 
8 116  121  e92  e130  e123  e150  398  1730  e580  261  200  72 
9 114  124  e87  e142  e110  e185  422  1430  e540  674  180  66 
10 103  132  e92  e125  e99  e210  383  2430  e530  9400  166  62 
 
11 95  117  e94  e107  e92  e240  339  4110  519  5150  155  59 
12 90  113  e98  e110  e85  e220  306  5920  531  3550  150  55 
13 88  109  102  e112  e83  e250  278  4380  539  2300  148  61 
14 88  109  104  e94  e82  1000  258  2650  519  1460  144  70 
15 86  109  110  e86  e82  918  239  2080  498  1170  145  80 
 
16 88  109  115  e82  e82  819  230  2470  452  975  135  91 
17 86  109  116  e78  e84  718  299  2150  404  803  126  86 
18 88  127  196  e75  e87  703  336  1650  379  703  121  70 
19 96  138  274  e72  e92  635  384  1440  368  625  e112  63 
20 102  139  445  e70  e98  658  349  1310  349  571  e105  56 
 
21 102  163  398  e68  e140  616  330  1240  333  543  e95  52 
22 99  185  306  e67  e220  536  313  1170  306  832  78  58 
23 100  171  220  e66  e385  433  280  1030  292  921  73  57 
24 104  165  173  e66  e410  363  259  971  284  733  70  53 
25 105  143  e140  e66  e300  347  269  913  303  524  67  54 
 
26 107  133  e170  e66  e220  329  267  860  602  444  65  59 
27 111  129  e198  e68  e170  315  261  796  1060  396  62  59 
28 123  124  e202  e72  e150  313  241  729  780  372  58  53 
29 130  126  198  e76  ---  340  226  685  592  351  67  53 
30 132  129  175  e82  ---  360  242  690  510  332  79  57 
 
31 132  ---  162  e90  ---  349  ---  691  ---  317  93  --- 

TOTAL 3182 3867 5024 3101 4054 11850 9281 56410 15194 35754 4643 2661
MEAN 103 129 162 100 145 382 309 1820 506 1153 150 88.7
MAX 132 185 445 160 410 1000 443 5920 1060 9400 343 248
MIN 86 109 87 66 82 110 226 295 284 256 58 52
CFSM 0.06 0.08 0.10 0.06 0.09 0.23 0.19 1.11 0.31 0.71 0.09 0.05
IN. 0.07 0.09 0.11 0.07 0.09 0.27 0.21 1.28 0.35 0.81 0.11 0.06
e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1914 - 2003, BY WATER YEAR (WY)
MEAN 533 604 657 1007 1456 1649 1847 1764 1629 1045 524 600
MAX 5356 4386 5745 5500 7111 6524 6752 8015 7908 7839 4767 8440
(WY) 1987 1986 1983 1916 2001 1985 1983 1995 1974 1993 1924 1926
MIN 26.5 24.9 26.8 17.7 44.2 188 89.7 29.1 88.0 30.1 6.46 17.9
(WY) 1957 1915 1915 1940 1989 1956 1956 1934 1934 1936 1914 1988

SUMMARY STATISTICS FOR 2002 CALENDAR YEAR FOR 2003 WATER YEAR WATER YEARS 1914 - 2003
ANNUAL TOTAL 531722      155021     
ANNUAL MEAN 1457      425      1107         
HIGHEST ANNUAL MEAN 3578          1993
LOWEST ANNUAL MEAN 168          1989
HIGHEST DAILY MEAN 23200          May 14 9400          Jul 10 32800          Aug 23 1924
LOWEST DAILY MEAN 86          A 52          Sep 21 3.8       Jul 31 1914
ANNUAL SEVEN-DAY MINIMUM 88          Oct 12 55          Sep 23 4.2       Aug 23 1914
MAXIMUM PEAK FLOW 11400          Jul 10 37300      B Aug 22 1924
MAXIMUM PEAK STAGE 21.97     Jul 10 33.10 C Jul 26 1993
INSTANTANEOUS LOW FLOW 49          Sep 21 3.8   D E
ANNUAL RUNOFF (CFSM) 0.89 0.26 0.68    
ANNUAL RUNOFF (INCHES) 12.09 3.53 9.19    
10 PERCENT EXCEEDS 3320      843      2560         
50 PERCENT EXCEEDS 558      160      480         
90 PERCENT EXCEEDS 106      73      65         

A - Oct. 15, 17.

B - Gage height, 30.77 ft., from graph based on gage readings.

C - Discharge, 34,700 ft3/s.

D - Observed.

E - July 31, and Aug. 27-29, 1914.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data