05583000 DATA: Discharge Tables, 2002

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 1994-2002.
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.
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 rain gage, 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, 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	467	2060	1750	e2100	10100	6900	6910	25000	8100	3800	1710	2670
2	459	2790	2790	e1900	12500	5950	7150	22300	7460	3490	1480	2170
3	455	2640	2980	e2000	11700	6620	7150	19100	7060	3200	1340	1840
4	459	2000	2880	2130	11600	8730	6520	16600	6480	2850	1230	1640
5	531	1620	2830	2340	11500	8900	5920	15000	5720	2650	1150	1470

6	541	1450	2720	2260	11100	8520	5210	13800	5280	2490	1080	1330
7	631	1360	2550	2090	10600	8760	4490	13900	5400	2350	1020	1200
8	560	1300	2480	1990	9980	9130	4130	15100	5260	2250	988	1100
9	570	1270	2260	1900	9080	9330	5240	16300	4970	2090	998	1020
10	551	1210	1980	1950	7550	10800	6490	19400	4740	1930	927	949

11	525	1160	1810	1910	6390	10500	6250	21800	5010	1790	895	896
12	629	1140	1760	1770	5540	9790	5990	31000	8390	1740	866	857
13	802	1110	1850	1730	4770	9420	5780	43100	13500	1670	866	829
14	1200	1080	2100	1730	4100	8950	5610	54700	18100	1580	911	783
15	2090	1030	2350	1730	4340	8680	5240	74500	20500	1460	1010	774

16	2070	976	2880	1690	4470	8130	4900	64300	22400	1380	1230	772
17	2150	944	3660	1610	3990	7320	4560	50200	22700	1310	5070	760
18	2230	988	5060	1550	3390	6770	4160	42500	21500	1230	4960	735
19	2120	1060	6690	1490	3480	5980	3960	36700	19200	1230	3260	727
20	1880	976	7200	1460	5140	5220	4280	32200	16000	1170	3640	736

21	1850	941	7150	1440	8840	4930	6270	28000	13300	1100	3200	788
22	2090	924	7060	1440	9450	4840	10500	23400	10900	1060	2430	893
23	1950	904	6710	1420	9320	4730	11600	19300	7960	1370	3860	997
24	1620	1110	6230	1390	9250	4510	12300	15900	6110	1340	9680	904
25	1480	1400	5290	1400	9120	4020	14300	13400	5370	1160	9150	763

26	2790	1570	4320	1390	8940	3950	14800	11200	4990	1170	6150	683
27	3780	1450	3940	1370	8610	4490	15500	9350	4690	5080	5310	665
28	3450	1330	3750	1350	8010	5060	23100	8400	4670	5590	4950	640
29	3070	1280	3380	1330	---	5500	25600	8790	4420	4130	4500	619
30	2590	1310	2970	1420	---	5930	25900	9290	4150	3020	3970	596

31	2090	---	2640	3080	---	6490	---	8650	---	2150	3280	---

TOTAL	47680	40383	114020	54360	222860	218850	269810	783180	294330	68830	91111	30806
MEAN	1538	1346	3678	1754	7959	7060	8994	25260	9811	2220	2939	1027
MAX	3780	2790	7200	3080	12500	10800	25900	74500	22700	5590	9680	2670
MIN	455	904	1750	1330	3390	3950	3960	8400	4150	1060	866	596
CFSM	0.30	0.26	0.72	0.34	1.56	1.39	1.77	4.96	1.93	0.44	0.58	0.20
IN.	0.35	0.29	0.83	0.40	1.63	1.60	1.97	5.72	2.15	0.50	0.67	0.23

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1910 - 2002, BY WATER YEAR (WY)
MEAN	1268	1704	2493	3323	4484	5454	6308	6331	4870	2842	1639	1123
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 2001 CALENDAR YEAR		FOR 2002 WATER YEAR		WATER YEARS 1910 - 2002
ANNUAL TOTAL	1334035		2236220
ANNUAL MEAN	3655		6127		3495
HIGHEST ANNUAL MEAN					8523	1993
LOWEST ANNUAL MEAN					516	1954
HIGHEST DAILY MEAN	21900	Feb 26	74500	May 15	120000	May 20 1943
LOWEST DAILY MEAN	455	Oct 3	455	Oct 3	45 A	B
ANNUAL SEVEN-DAY MINIMUM	470	Sep 28	506	Oct 1	45	Jan 21 1918
MAXIMUM PEAK FLOW			77300	May 15	123000	May 20 1943
MAXIMUM PEAK STAGE			23.85	May 15	25.63	May 20 1943
INSTANTANEOUS LOW FLOW			449	Oct 3
ANNUAL RUNOFF (CFSM)	0.72		1.20		0.69
ANNUAL RUNOFF (INCHES)	9.74		16.33		9.32
10 PERCENT EXCEEDS	9670		13800		9020
50 PERCENT EXCEEDS	2070		3260		1620
90 PERCENT EXCEEDS	592		908		300

	A - Estimated.
	B - Jan. 21-31, 1918.