05572000 DATA: Discharge Tables, 1998

Station list Available data
ILLINOIS RIVER BASIN

05572000 SANGAMON RIVER AT MONTICELLO, IL

LOCATION.--Lat 40°01'51", long 88°35'20", in NE1/4SW1/4 sec.12, T.18 N., R.5 E., Piatt County, Hydrologic Unit 07130006, on right downstream side of highway bridge, 0.5 mi west of Monticello, and at mile 162.2.

DRAINAGE AREA.--550 mi².

PERIOD OF RECORD.--February 1908 to December 1912, June 1914 to current year. Monthly discharge only for some periods, published in WSP 1308. Published as "near Monticello" 1910-12.

REVISED RECORDS.--WSP 525: 1920. WSP 1115: 1946-47. WSP 1208: 1915-16, 1918-20, 1927, 1929, 1939. WSP 1508: 1908(M), 1917, 1928(M). WDR IL-81-2: 1909(P), 1912(P), 1915(P), 1919-32(P), 1935(P), 1937-38(P), 1940-41(P), 1944(P), 1946-47(P). WDR IL-89-2: 1988.

GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 625.89 ft above sea level. Prior to Sept. 30, 1964, nonrecording gage at site 0.2 mi downstream at same datum. Oct. 1, 1964, to Oct. 22, 1971, nonrecording gage at present site and datum.

REMARKS.--Records good except those for estimated daily discharges, which are poor. Recording raingage and gage-height telemeter at station. Water temperature and specific conductance continuously recorded at station for the National Water-Quality Assessment Program.

DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	21	24	441	155	324	460	1760	1180	430	1290	79	24
2	19	24	337	174	316	447	1370	1780	395	1270	71	23
3	16	26	264	165	299	422	1150	3610	359	927	67	22
4	15	25	215	161	286	392	1280	4470	341	670	84	21
5	14	24	173	187	277	359	1320	3290	335	587	268	19

6	15	27	143	455	263	331	1210	3080	310	570	195	19
7	19	26	124	671	246	309	1030	3350	288	686	138	18
8	18	33	113	1140	229	411	931	4110	275	910	114	19
9	18	34	108	2020	217	1020	1020	3710	369	751	131	18
10	16	34	116	2110	208	1700	1280	4330	525	593	108	17

11	16	33	142	1980	239	1960	1400	3660	670	495	88	17
12	17	31	161	1630	351	1950	1000	2690	1410	422	76	17
13	20	29	163	901	403	1560	776	1950	1910	367	66	16
14	20	29	148	635	440	1020	767	1130	2030	325	59	16
15	19	29	131	534	395	885	881	824	4080	292	53	16

16	19	27	122	479	365	843	926	710	3830	262	50	15
17	18	28	119	422	385	1050	775	626	4320	234	50	14
18	17	28	109	369	562	2580	650	559	5840	210	51	14
19	19	29	102	332	695	3230	574	519	6160	190	46	12
20	19	31	95	300	734	4560	532	511	4520	174	42	13

21	20	32	89	283	689	5130	517	478	3250	158	39	16
22	19	30	99	269	622	4370	507	494	2460	149	38	15
23	16	30	111	261	560	3650	483	836	2360	159	35	14
24	16	31	132	244	502	3110	448	1910	2390	257	34	19
25	17	30	301	230	452	2530	425	1670	2490	218	32	18

26	22	33	348	221	419	1940	410	1020	2210	158	30	15
27	23	32	377	215	430	1360	380	767	1330	130	29	12
28	23	43	327	251	436	2080	350	626	817	113	28	13
29	24	96	276	288	---	2800	369	543	700	102	26	12
30	27	237	238	316	---	2520	729	495	959	95	24	12

31	26	---	196	328	---	2100	---	476	---	87	24	---

TOTAL	588	1165	5820	17726	11344	57079	25250	55404	57363	12851	2175	496
MEAN	19.0	38.8	188	572	405	1841	842	1787	1912	415	70.2	16.5
MAX	27	237	441	2110	734	5130	1760	4470	6160	1290	268	24
MIN	14	24	89	155	208	309	350	476	275	87	24	12
CFSM	.03	.07	.34	1.04	.74	3.35	1.53	3.25	3.48	.75	.13	.03
IN.	.04	.08	.39	1.20	.77	3.86	1.71	3.75	3.88	.87	.15	.03

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1908 - 1998, BY WATER YEAR (WY)
MEAN	177	247	353	425	569	716	817	732	499	292	154	119
MAX	2868	2842	2155	2636	1899	2472	2753	3609	2081	1585	1486	2427
(WY)	1927	1986	1928	1950	1959	1979	1922	1908	1974	1993	1981	1926
MIN	1.32	5.50	3.67	3.43	10.0	20.2	57.6	42.6	19.3	3.85	1.76	.48
(WY)	1989	1915	1964	1977	1931	1931	1931	1934	1934	1988	1988	1988

SUMMARY STATISTICS	FOR 1997 CALENDAR YEAR		FOR 1998 WATER YEAR		WATER YEARS 1908 - 1998
ANNUAL TOTAL	139343		247261
ANNUAL MEAN	382		677		422
HIGHEST ANNUAL MEAN					1105	1927
LOWEST ANNUAL MEAN					68.0	1934
HIGHEST DAILY MEAN	3740	Mar 1	6160	Jun 19	18700	Oct 4 1926
LOWEST DAILY MEAN	14	Oct 5	12	A	.00	B
ANNUAL SEVEN-DAY MINIMUM	16	Oct 3	14	Sep 17	.07	Sep 11 1988
INSTANTANEOUS PEAK FLOW			6510	Jun 19	19000 C	Oct 4 1926
INSTANTANEOUS PEAK STAGE			15.56	Jun 19	19.06 D	Apr 13 1994
INSTANTANEOUS LOW FLOW			12	E
ANNUAL RUNOFF (CFSM)	.69		1.23		.77
ANNUAL RUNOFF (INCHES)	9.42		16.72		10.41
10 PERCENT EXCEEDS	1100		2020		1100
50 PERCENT EXCEEDS	174		277		160
90 PERCENT EXCEEDS	26		19		12

A - Sept. 19, 27, 29-30.
B - Aug. 28, Sept. 5, 11, 17, 18, Oct. 30 to Nov. 1, 1988.
C - Gage height, 18.50 ft. from graph based on gage readings, site then in use.
D - Discharge, 15,900 ft³/s.
E - Sept. 19-20, 27-30.