05548280 DATA: Discharge Tables, 2004

Station list Available data
ILLINOIS RIVER BASIN

05548280 NIPPERSINK CREEK NEAR SPRING GROVE, IL


LOCATION.-- Lat 42°26'36", long 88°14'51" (NAD of 1927), in NE1/4NW1/4 sec.25, T.46 N., R.8 E., McHenry County, Hydrologic Unit 07120006, on right bank at upstream side of bridge on Winn Road, 0.6 mi west of Spring Grove, and at mile 7.4.

DRAINAGE AREA.-- 192 mi².

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE
	DISCHARGE: August 1966 to current year.
	STAGE: Water years 1994 to current year.
SURFACE-WATER QUALITY
	CHEMICAL: Water years 1976-91.
	SEDIMENT: Dec. 1997 to May 1999.
	MISCELLANEOUS: Sediment concentration and particle size, water years 1998-99.
PRECIPITATION: October 1999 to current year.

REVISED RECORDS.-- WSP 2115: 1969-70(M). WDR IL-75-1: Drainage area. WDR IL-85-2: 1966-67(M), 1971.

GAGE.-- Water stage recorder, phone telemeter, unheated tipping-bucket rain gage, and crest-stage gage. Datum of gage is 746.00 ft above NGVD of 1929.

REMARKS.-- Suspended-sediment samples were collected twice weekly with more frequent samples collected during high runoff periods. Collection, computation, and publication of precipitation data do not necessarily conform to standards used by the National Weather Service. Precipitation data could be subject to error for days with freezing and/or thawing of precipitation.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 2,910 ft³/s, Sept. 26, 1986, gage height, 14.26 ft; minimum discharge, 6.6 ft³/s, Aug. 7, 1988.
SUSPENDED-SEDIMENT CONCENTRATION: Maximum daily, 244 mg/L, May 17, 1999; minimum daily, 8 mg/L, Nov. 24, 1998.
SUSPENDED-SEDIMENT LOAD: Maximum daily, 247 tons, May 17, 1999; minimum daily, 1.9 tons, Nov. 24, 1998.
PRECIPITATION: Maximum daily total, 2.82 in., June 12, 2000.

EXTREMES OUTSIDE PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Flood in April 1960 reached a stage of 13.7 ft, from information by local resident, and flood in July 1938 reached a stage of about 4 to 6 ft higher than that in April 1960.

REMARKS FOR CURRENT YEAR.-- Records good except those for estimated daily discharges, which are poor.

Discharge, cubic feet per second, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	19	25	49	71	e41	132	238	82	686	117	49	62
2	18	51	48	71	e42	184	204	83	586	109	46	57
3	21	132	48	72	e42	179	183	83	425	112	46	52
4	21	169	50	69	e43	159	164	88	303	172	70	51
5	19	153	65	71	e43	406	155	75	245	171	75	50

6	19	110	68	84	e44	553	147	73	215	150	66	50
7	18	82	68	91	e44	484	127	69	196	130	58	42
8	17	59	61	68	e44	349	120	71	177	122	55	39
9	17	52	60	64	e44	246	115	86	159	112	52	38
10	17	47	199	62	e44	208	109	98	217	108	48	40

11	17	47	355	62	e44	180	104	153	338	102	45	41
12	23	45	298	62	e44	146	99	148	367	98	44	41
13	20	42	212	60	e44	138	95	143	373	93	45	42
14	27	36	155	58	e43	147	96	295	316	84	44	42
15	31	37	128	56	e42	131	96	416	240	78	43	46

16	28	34	116	58	e42	126	95	362	199	75	43	51
17	24	35	104	57	e42	126	91	268	204	70	44	45
18	25	127	94	e55	e43	124	97	312	233	69	43	45
19	23	191	85	e54	e44	125	96	385	193	70	43	43
20	23	160	78	e53	e48	127	76	355	167	68	40	40

21	26	111	80	52	58	116	127	344	180	67	38	39
22	21	85	71	49	64	116	133	685	263	70	40	39
23	21	91	70	e46	81	112	125	1170	252	66	41	37
24	22	81	68	e43	121	142	115	1210	223	64	41	38
25	28	71	68	e43	118	214	132	910	225	60	57	36

26	28	61	70	e43	105	284	127	610	194	57	56	36
27	26	54	62	e44	102	342	111	443	166	57	63	34
28	29	55	75	e43	100	327	117	317	148	55	89	33
29	28	55	86	e42	103	363	108	257	137	55	107	33
30	25	58	82	e41	---	342	79	334	125	52	95	34

31	30	---	79	e41	---	282	---	609	---	50	74	---

TOTAL	711	2356	3152	1785	1719	6910	3681	10534	7752	2763	1700	1276
MEAN	22.9	78.5	102	57.6	59.3	223	123	340	258	89.1	54.8	42.5
MAX	31	191	355	91	121	553	238	1210	686	172	107	62
MIN	17	25	48	41	41	112	76	69	125	50	38	33
CFSM	0.12	0.41	0.53	0.30	0.31	1.16	0.64	1.77	1.35	0.46	0.29	0.22
IN.	0.14	0.46	0.61	0.35	0.33	1.34	0.71	2.04	1.50	0.54	0.33	0.25

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1966 - 2004, BY WATER YEAR (WY)
MEAN	102	122	139	117	162	241	249	188	185	114	85.7	109
MAX	473	372	493	316	455	554	652	542	646	522	258	579
(WY)	1987	1986	1983	1974	1971	1979	1993	1974	2000	1993	1972	1972
MIN	22.9	36.3	29.9	28.7	35.8	62.2	66.7	55.0	34.6	26.0	25.3	21.1
(WY)	2004	1972	1990	1977	1978	1968	2003	1989	1988	1988	1988	1988

SUMMARY STATISTICS	FOR 2003 CALENDAR YEAR		FOR 2004 WATER YEAR		WATER YEARS 1966 - 2004
ANNUAL TOTAL	23274		44339
ANNUAL MEAN	63.8		121		151
HIGHEST ANNUAL MEAN					288	1974
LOWEST ANNUAL MEAN					52.4	1977
HIGHEST DAILY MEAN	355	Dec 11	1210	May 24	2660	Jun 15 1999
LOWEST DAILY MEAN	17	Oct 8-11	17	Oct 8-11	10	Aug 6 1988
ANNUAL SEVEN-DAY MINIMUM	18	Oct 5	18	Oct 5	14	Aug 2 1988
MAXIMUM PEAK FLOW			1270	May 24	2910	Sep 26 1986
MAXIMUM PEAK STAGE			9.84	May 24	14.26	Sep 26 1986
INSTANTANEOUS LOW FLOW			16	Oct 8-11	6.6	Aug 7 1988
ANNUAL RUNOFF (CFSM)	0.332		0.631		0.786
ANNUAL RUNOFF (INCHES)	4.51		8.59		10.68
10 PERCENT EXCEEDS	116		272		304
50 PERCENT EXCEEDS	50		71		100
90 PERCENT EXCEEDS	23		34		42