USGS CD-ROM: Current Year Discharge

05548280 NIPPERSINK CREEK NEAR SPRING GROVE, IL

LOCATION.--Lat 42°26'37", long 88°14'51", in NE¼NW¼ 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.--August 1966 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 and crest-stage gage. Datum of gage is 746.00 ft above sea level.

REMARKS.--Records good except those for estimated daily discharges, which are poor. Recording rain gage and gage-height telemeter at station.

EXTREMES OUTSIDE PERIOD OF RECORD.--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.

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	54	66	99	e67	118	158	415	218	123	387	65	52
2	57	61	93	69	181	156	409	209	111	269	65	50
3	55	58	99	94	223	154	338	202	104	247	63	49
4	56	56	107	135	214	150	280	201	103	391	69	48
5	55	56	95	206	191	143	245	193	104	392	75	49

6	50	69	84	284	168	142	219	191	105	291	77	48
7	49	73	77	342	157	137	202	344	100	249	76	56
8	50	72	75	330	152	146	276	624	97	229	76	51
9	58	69	72	329	147	203	368	695	99	210	71	46
10	51	66	77	238	142	207	415	571	104	183	67	46

11	51	65	80	e200	179	195	360	422	121	163	62	46
12	54	61	78	e185	340	168	307	316	152	146	59	42
13	69	60	74	e170	360	156	248	372	160	134	58	41
14	59	59	70	e162	298	144	234	357	160	125	58	51
15	53	65	69	e150	252	137	237	300	137	117	58	104

16	54	70	69	e133	222	134	539	243	131	104	56	95
17	55	68	69	e122	246	139	564	199	138	99	54	82
18	57	66	70	e116	262	221	489	183	125	95	51	71
19	57	59	71	e111	253	283	379	164	181	98	50	66
20	52	59	72	e108	230	277	313	152	171	95	51	61

21	50	62	74	e108	211	257	400	143	142	102	52	55
22	48	64	75	e107	194	231	474	131	122	101	55	53
23	50	64	76	e106	182	205	411	129	110	100	60	51
24	54	61	75	e106	177	188	329	147	104	92	54	53
25	55	59	80	106	169	177	273	157	109	87	79	54

26	61	63	77	105	160	192	279	143	379	84	71	61
27	93	78	71	104	174	176	284	127	465	83	61	53
28	96	83	73	105	168	154	256	127	609	79	70	45
29	79	81	71	108	---	154	237	138	735	73	68	48
30	77	100	71	109	---	165	229	136	630	69	59	49

31	73	---	67	110	---	248	---	135	---	66	54	---

TOTAL	1832	1993	2410	4725	5770	5597	10009	7669	5931	4960	1944	1676
MEAN	59.1	66.4	77.7	152	206	181	334	247	198	160	62.7	55.9
MAX	96	100	107	342	360	283	564	695	735	392	79	104
MIN	48	56	67	67	118	134	202	127	97	66	50	41
CFSM	.31	.35	.40	.79	1.07	.94	1.74	1.29	1.03	.83	.33	.29
IN.	.35	.39	.47	.92	1.12	1.08	1.94	1.49	1.15	.96	.38	.32

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1966 - 1998, BY WATER YEAR (WY)
MEAN	103	125	146	121	163	255	262	181	158	113	88.8	113
MAX	473	372	493	316	455	554	652	542	393	522	258	579
(WY)	1987	1986	1983	1974	1971	1979	1993	1974	1967	1993	1972	1972
MIN	30.7	36.3	29.9	28.7	35.8	62.2	83.8	55.0	34.6	26.0	25.3	21.1
(WY)	1989	1972	1990	1977	1978	1968	1989	1989	1988	1988	1988	1988

SUMMARY STATISTICS	FOR 1997 CALENDAR YEAR		FOR 1998 WATER YEAR		WATER YEARS 1966 - 1998
ANNUAL TOTAL	49029		54516
ANNUAL MEAN	134		149		152
HIGHEST ANNUAL MEAN					288	1974
LOWEST ANNUAL MEAN					52.4	1977
HIGHEST DAILY MEAN	1640	Feb 22	735	Jun 29	2580 A	Feb 21 1994
LOWEST DAILY MEAN	43	Sep 15	41	Sep 13	10	Aug 6 1988
ANNUAL SEVEN-DAY MINIMUM	45	Sep 9	46	Sep 8	14	Aug 2 1988
INSTANTANEOUS PEAK FLOW			758	Jun 29	2910	Sep 26 1986
INSTANTANEOUS PEAK STAGE			8.32	Jun 29	14.26	Sep 26 1986
INSTANTANEOUS LOW FLOW			39	Sep 13	6.6	Aug 7 1988
ANNUAL RUNOFF (CFSM)	.70		.78		.79
ANNUAL RUNOFF (INCHES)	9.50		10.56		10.78
10 PERCENT EXCEEDS	211		309		310
50 PERCENT EXCEEDS	90		105		99
90 PERCENT EXCEEDS	55		54		41

A - From graph based on daily gage readings and existing record.