Station list     Available data
ILLINOIS RIVER BASIN


05583000       SANGAMON RIVER NEAR OAKFORD, IL

 

LOCATION.-- Lat 40°07'26", long 89°59'06" (NAD of 1927), in NW1/4SE1/4 sec.3, T.19 N., R.8 W., Mason County, Hydrologic Unit 07130008, on right bank at downstream side of bridge on State Highway 97, 300 ft upstream from a railroad bridge, 0.8 mi downstream from Crane Creek, 1.8 mi northwest of Oakford, and at mile 25.7.
 

DRAINAGE AREA.-- 5,093 mi2.
 

PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE
 

DISCHARGE: October 1909 to March 1912, August 1914 to June 1919, March 1921 to August 1922, October 1928 to December 1933, October 1939 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 1978-94 and 1998.
 

SEDIMENT: Water years 1981, June 1983 to September 1986, water years 1995-1997.
 

SPECIFIC CONDUCTANCE: Water years 1979-81.
 

WATER TEMPERATURE: Water years 1976-77, 1979-81.
 

MISCELLANEOUS: Contaminants in streambed sediments, August 1996; contaminants in fish tissue, August 1996; streambank sediment size, October 1997; streambed sediment size, October 1997; sediment concentration and particle size, water years 1993-94, 1996-98.

BIOLOGICAL
 

ALGAE: Water year 1981.
 

BENTHIC MACROINVERTEBRATES: Water year 1996.
 

FISH: Water year 1997.
 

HABITAT: Water year 1996.
 

REVISED RECORDS.-- WSP 715: 1922(M). WSP 1175: 1912(M). WDR IL-75-1: Drainage area.
 

GAGE.-- Water-stage recorder, U.S. Army Corps of Engineers satellite telemeter, and artificial control. Datum of gage is 452.88 ft above NGVD of 1929 (U.S. Army Corps of Engineers bench mark). Prior to Jan. 1, 1934, nonrecording gage at site 2.4 mi upstream at datum 458.66 ft above NGVD of 1929. Oct. 1, 1939, to May 14, 1940, nonrecording gage at present site at NGVD of 1929.
 

EXTREMES FOR PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 123,000 ft3/s, May 20, 1943, gage height, 25.63 ft; minimum daily, 45 ft3/s, estimated, Jan. 21-31, 1918.

SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily, 3,540 mg/L, June 9, 1984; minimum daily, 1 mg/L, Dec. 7, 8, 1996, Jan. 11, 1997.

SUSPENDED-SEDIMENT LOADS: Maximum daily, 120,000 tons, Feb. 24, 1985; minimum daily, 1.6 tons, Dec. 7, 1996.
 

REMARKS FOR CURRENT YEAR.-- Records good 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
 
1 573  700  537  714  e720  1140  2010  2270  2430  2190  1400  1620 
2 561  696  525  765  695  1060  2030  2200  2250  2040  1330  4320 
3 575  665  517  789  752  1010  1830  2020  2210  1980  1240  4620 
4 594  640  518  782  790  964  1660  1880  2210  1660  1660  4100 
5 589  658  507  768  787  937  1890  2210  2190  1420  2060  4020 
 
6 599  671  510  757  795  925  2570  2970  2050  1280  2110  3910 
7 576  686  519  741  685  912  2630  3810  1910  1190  2090  3520 
8 564  705  e495  727  634  878  4250  4050  1900  1120  1790  2930 
9 556  690  e460  719  649  869  4470  4640  1840  1190  1550  2430 
10 533  667  e470  715  702  900  3950  4830  1790  6900  1380  1830 
 
11 519  640  e485  629  653  927  3540  7700  1990  11800  1160  1390 
12 511  613  504  595  608  907  3530  10700  2950  13900  1060  1110 
13 495  595  507  629  e580  886  3380  11600  4610  11500  968  1010 
14 487  584  509  666  e590  902  3140  12700  5680  5980  858  977 
15 482  580  511  651  e600  1150  2920  12000  6460  4860  776  869 
 
16 484  572  503  641  e630  1420  2740  10500  6250  4520  724  809 
17 484  568  497  594  e670  1450  2530  8820  6220  4290  685  755 
18 494  565  541  e630  e760  1330  2320  7700  5820  4610  645  712 
19 535  556  633  e720  e850  1340  2220  6400  5220  5030  613  674 
20 574  557  888  e690  921  1500  2290  5200  4550  4190  592  644 
 
21 684  571  928  e660  1160  1900  2260  4480  3930  3970  577  622 
22 644  571  937  e640  1610  2650  2160  4130  3480  5390  590  621 
23 620  562  917  e600  1860  2810  2070  3950  2890  4570  559  589 
24 574  568  853  e570  1770  2670  1910  3680  2610  4100  528  573 
25 556  560  797  e540  1530  2510  1800  3370  2390  3540  512  552 
 
26 540  547  744  e560  1340  2230  1980  3160  2460  2920  505  567 
27 551  545  715  e580  1280  2000  2080  2830  2780  2350  496  587 
28 568  549  690  e600  1220  1840  2080  2630  2330  2020  486  622 
29 582  546  673  e630  ---  1780  2050  2550  2320  1820  588  610 
30 593  536  666  647  ---  1760  2100  2680  2270  1670  607  574 
 
31 686  ---  669  e680  ---  1790  ---  2490  ---  1500  742  --- 

TOTAL 17383 18163 19225 20629 25841 45347 76390 160150 97990 125500 30881 48167
MEAN 561 605 620 665 923 1463 2546 5166 3266 4048 996 1606
MAX 686 705 937 789 1860 2810 4470 12700 6460 13900 2110 4620
MIN 482 536 460 540 580 869 1660 1880 1790 1120 486 552
CFSM 0.11 0.12 0.12 0.13 0.18 0.29 0.50 1.01 0.64 0.79 0.20 0.32
IN. 0.13 0.13 0.14 0.15 0.19 0.33 0.56 1.17 0.72 0.92 0.23 0.35
e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1910 - 2003, BY WATER YEAR (WY)
MEAN 1259 1690 2469 3288 4438 5403 6260 6316 4849 2857 1631 1129
MAX 12180 13180 18250 19580 14010 19590 25140 30570 20730 11480 15000 13180
(WY) 1994 1986 1983 1950 1968 1979 1922 1943 1974 1981 1981 1993
MIN 118 98.1 102 78.9 186 287 526 598 699 302 184 70.0
(WY) 1915 1915 1915 1918 1931 1941 1931 1954 1988 1911 1922 1922

SUMMARY STATISTICS FOR 2002 CALENDAR YEAR FOR 2003 WATER YEAR WATER YEARS 1910 - 2003
ANNUAL TOTAL 2088908          685666         
ANNUAL MEAN 5723          1879          3473         
HIGHEST ANNUAL MEAN 8523          1993
LOWEST ANNUAL MEAN 516          1954
HIGHEST DAILY MEAN 74500              May 15 13900              Jul 12 120000          May 20 1943
LOWEST DAILY MEAN 460      A     Dec 9 460      A     Dec 9 45      B C
ANNUAL SEVEN-DAY MINIMUM 490              Dec 8 490      A     Dec 8 45      B Jan 21 1918
MAXIMUM PEAK FLOW 15000              Jul 13 123000          May 20 1943
MAXIMUM PEAK STAGE 14.43         Jul 13 25.63     May 20 1943
INSTANTANEOUS LOW FLOW 478              D
ANNUAL RUNOFF (CFSM) 1.12     0.37     0.68    
ANNUAL RUNOFF (INCHES) 15.26     5.01     9.27    
10 PERCENT EXCEEDS 13800          4270          8980         
50 PERCENT EXCEEDS 2150          925          1610         
90 PERCENT EXCEEDS 556          543          303         

A - Estimated due to backwater from ice.

B - Estimated.

C - Jan. 21-31, 1918.

D - Oct. 15, 16, and Aug. 28.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data