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
DAYOCTNOVDECJANFEBMARAPRMAYJUNJULAUGSEP
 
1573 700 537 714 e720 1140 2010 2270 2430 2190 1400 1620 
2561 696 525 765 695 1060 2030 2200 2250 2040 1330 4320 
3575 665 517 789 752 1010 1830 2020 2210 1980 1240 4620 
4594 640 518 782 790 964 1660 1880 2210 1660 1660 4100 
5589 658 507 768 787 937 1890 2210 2190 1420 2060 4020 
 
6599 671 510 757 795 925 2570 2970 2050 1280 2110 3910 
7576 686 519 741 685 912 2630 3810 1910 1190 2090 3520 
8564 705 e495 727 634 878 4250 4050 1900 1120 1790 2930 
9556 690 e460 719 649 869 4470 4640 1840 1190 1550 2430 
10533 667 e470 715 702 900 3950 4830 1790 6900 1380 1830 
 
11519 640 e485 629 653 927 3540 7700 1990 11800 1160 1390 
12511 613 504 595 608 907 3530 10700 2950 13900 1060 1110 
13495 595 507 629 e580 886 3380 11600 4610 11500 968 1010 
14487 584 509 666 e590 902 3140 12700 5680 5980 858 977 
15482 580 511 651 e600 1150 2920 12000 6460 4860 776 869 
 
16484 572 503 641 e630 1420 2740 10500 6250 4520 724 809 
17484 568 497 594 e670 1450 2530 8820 6220 4290 685 755 
18494 565 541 e630 e760 1330 2320 7700 5820 4610 645 712 
19535 556 633 e720 e850 1340 2220 6400 5220 5030 613 674 
20574 557 888 e690 921 1500 2290 5200 4550 4190 592 644 
 
21684 571 928 e660 1160 1900 2260 4480 3930 3970 577 622 
22644 571 937 e640 1610 2650 2160 4130 3480 5390 590 621 
23620 562 917 e600 1860 2810 2070 3950 2890 4570 559 589 
24574 568 853 e570 1770 2670 1910 3680 2610 4100 528 573 
25556 560 797 e540 1530 2510 1800 3370 2390 3540 512 552 
 
26540 547 744 e560 1340 2230 1980 3160 2460 2920 505 567 
27551 545 715 e580 1280 2000 2080 2830 2780 2350 496 587 
28568 549 690 e600 1220 1840 2080 2630 2330 2020 486 622 
29582 546 673 e630 --- 1780 2050 2550 2320 1820 588 610 
30593 536 666 647 --- 1760 2100 2680 2270 1670 607 574 
 
31686 --- 669 e680 --- 1790 --- 2490 --- 1500 742 --- 

TOTAL17383181631922520629258414534776390160150979901255003088148167
MEAN561605620665923146325465166326640489961606
MAX6867059377891860281044701270064601390021104620
MIN4825364605405808691660188017901120486552
CFSM0.110.120.120.130.180.290.501.010.640.790.200.32
IN.0.130.130.140.150.190.330.561.170.720.920.230.35

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1910 - 2003, BY WATER YEAR (WY)
MEAN125916902469328844385403626063164849285716311129
MAX121801318018250195801401019590251403057020730114801500013180
(WY)199419861983195019681979192219431974198119811993
MIN11898.110278.918628752659869930218470.0
(WY)191519151915191819311941193119541988191119221922

SUMMARY STATISTICSFOR 2002 CALENDAR YEARFOR 2003 WATER YEARWATER YEARS 1910 - 2003
ANNUAL TOTAL2088908         685666         
ANNUAL MEAN5723         1879         3473         
HIGHEST ANNUAL MEAN8523         1993
LOWEST ANNUAL MEAN516         1954
HIGHEST DAILY MEAN74500             May 1513900             Jul 12120000         May 20 1943
LOWEST DAILY MEAN460      A    Dec 9460      A    Dec 945      BC
ANNUAL SEVEN-DAY MINIMUM490             Dec 8490      A    Dec 845      BJan 21 1918
MAXIMUM PEAK FLOW15000             Jul 13123000         May 20 1943
MAXIMUM PEAK STAGE14.43        Jul 1325.63    May 20 1943
INSTANTANEOUS LOW FLOW478             D
ANNUAL RUNOFF (CFSM)1.12    0.37    0.68    
ANNUAL RUNOFF (INCHES)15.26    5.01    9.27    
10 PERCENT EXCEEDS13800         4270         8980         
50 PERCENT EXCEEDS2150         925         1610         
90 PERCENT EXCEEDS556         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