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 1994-2002.

SURFACE-WATER QUALITY
 

CHEMICAL: Water years 1978-93.
 

SEDIMENT: Water years 1980-97.
 

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 and rain gage, 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, in CFS, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
 
1 111  358  407  e270  1120  1000  852  3180  2410  1330  443  375 
2 110  354  390  e260  975  1110  812  3010  2280  1220  350  330 
3 110  339  381  e250  906  1100  801  2760  1880  1120  296  294 
4 111  335  370  e250  799  943  853  2290  1870  1050  263  265 
5 127  318  362  e260  608  1170  910  1980  4070  986  240  236 
 
6 175  301  365  e270  674  1300  855  1860  6260  924  226  212 
7 191  292  358  e280  686  1470  860  1790  4280  904  220  196 
8 202  284  347  e285  633  1720  1380  1660  3000  923  206  182 
9 198  282  336  e290  652  2370  3740  2330  2480  867  198  173 
10 179  267  323  e295  921  3260  5350  2150  2170  779  187  163 
 
11 164  259  314  e300  1420  2850  4450  6170  3880  752  171  152 
12 192  251  313  e308  1620  2260  3400  15200  4650  891  161  140 
13 386  249  360  e310  1510  1950  2790  20900  13300  860  151  133 
14 730  246  400  e310  1350  1740  2350  23200  12800  688  328  127 
15 708  246  508  e300  1290  1590  2090  17200  15200  616  1820  128 
 
16 851  245  543  e290  1240  1430  1900  13700  12700  558  885  130 
17 603  e240  515  e270  1150  1280  1700  9190  5660  514  440  125 
18 464  e245  484  e250  1100  1180  1570  5800  3890  479  320  125 
19 384  e248  476  e250  1080  1130  1460  4720  3160  455  357  135 
20 326  e250  454  e245  1260  1080  1370  3940  2670  492  600  156 
 
21 298  297  422  e240  1630  1020  1860  3420  2380  464  678  156 
22 382  294  441  e245  1780  935  1780  3020  2130  410  506  144 
23 723  318  509  e255  1670  860  1670  2760  1940  362  5690  131 
24 756  401  518  e260  1510  853  1590  3850  1780  326  6550  122 
25 802  466  436  e250  1420  880  1900  4300  1660  299  5370  119 
 
26 791  534  e465  e245  1310  855  2060  4660  1560  298  1780  114 
27 617  551  e540  e240  1170  830  2810  4120  1510  1030  1210  108 
28 516  502  e430  e240  1030  822  6350  3250  1580  1480  877  105 
29 451  458  e380  e250  ---  841  5390  2820  2020  1100  638  101 
30 407  435  e340  389  ---  889  4000  2500  1540  831  514  100 
 
31 377  ---  e300  979  ---  921  ---  2280  ---  642  435  --- 

TOTAL 12442 9865 12787 9136 32514 41639 68903 180010 126710 23650 32110 4977
MEAN 401.4 328.8 412.5 294.7 1161 1343 2297 5807 4224 762.9 1036 165.9
MAX 851 551 543 979 1780 3260 6350 23200 15200 1480 6550 375
MIN 110 240 300 240 608 822 801 1660 1510 298 151 100
CFSM 0.25 0.20 0.25 0.18 0.71 0.82 1.40 3.55 2.58 0.47 0.63 0.10
IN. 0.28 0.22 0.29 0.21 0.74 0.95 1.57 4.09 2.88 0.54 0.73 0.11
e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1914 - 2002, BY WATER YEAR (WY)
MEAN 537.5 608.9 662.3 1017 1471 1664 1865 1763 1642 1044 528.6 605.4
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 2001 CALENDAR YEAR FOR 2002 WATER YEAR WATER YEARS 1914 - 2002
ANNUAL TOTAL 596988        554743     
ANNUAL MEAN 1636        1520      1114         
HIGHEST ANNUAL MEAN 3578          1993
LOWEST ANNUAL MEAN 168          1989
HIGHEST DAILY MEAN 16900            Feb 11 23200          May 14 32800          Aug 23 1924
LOWEST DAILY MEAN 99            Sep 17 100          Sep 30 3.8       Jul 31 1914
ANNUAL SEVEN-DAY MINIMUM 107            Sep 2 110          Sep 24 4.2       Aug 23 1914
MAXIMUM PEAK FLOW 24800          May 14 37300      A Aug 22 1924
MAXIMUM PEAK STAGE 28.48     May 14 33.10 B Jul 26 1993
INSTANTANEOUS LOW FLOW 98          Sep 30 3.8   C D
ANNUAL RUNOFF (CFSM) 1.000 0.93 0.68    
ANNUAL RUNOFF (INCHES) 13.58   12.62 9.26    
10 PERCENT EXCEEDS 3860        3320      2580         
50 PERCENT EXCEEDS 520        652      484         
90 PERCENT EXCEEDS 152        192      64         

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

B - Discharge, 34,700 ft3/s.

C - Observed.

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


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data