05548280 DATA: Discharge Tables, 1999

Station list Available data
ILLINOIS RIVER BASIN

05548280 NIPPERSINK CREEK NEAR SPRING GROVE, IL

LOCATION.--Lat 42°26'37", long 88°14'51", 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.--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 1998 TO SEPTEMBER 1999 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	49	97	101	88	274	170	106	300	171	191	81	61
2	50	92	103	e88	302	172	108	259	401	185	75	59
3	66	88	95	e80	372	183	122	232	452	183	76	61
4	69	87	92	e72	359	180	131	209	323	177	72	61
5	81	88	92	e76	308	171	128	200	267	163	68	62

6	114	87	101	e77	275	171	136	240	229	146	68	54
7	111	81	180	e78	256	165	120	288	215	137	78	53
8	96	79	188	e77	238	156	108	259	185	128	81	54
9	86	78	170	e76	229	162	191	235	169	131	76	55
10	80	265	150	e76	229	158	233	212	159	116	77	54

11	75	367	136	e76	259	151	205	194	219	112	71	50
12	73	276	124	e77	426	147	182	219	551	108	79	53
13	69	213	114	e78	372	147	163	270	1200	110	88	56
14	66	184	112	e80	298	146	152	256	2380	107	75	54
15	67	159	111	e80	260	149	139	227	2660	99	72	50

16	68	150	102	e83	240	162	197	211	1720	95	70	52
17	104	135	101	88	225	205	224	364	936	127	65	53
18	274	126	106	107	206	205	205	575	587	133	59	50
19	288	123	94	99	193	189	184	564	441	129	94	50
20	219	105	92	101	182	176	172	456	359	116	93	52

21	162	104	89	101	170	161	189	333	305	115	79	49
22	134	117	e88	231	161	153	310	354	277	119	70	50
23	118	99	e84	506	156	148	680	402	320	116	72	53
24	108	91	91	756	151	137	956	335	350	119	88	47
25	99	95	91	804	150	130	757	276	316	112	85	45

26	93	94	90	610	147	128	515	236	270	108	78	53
27	94	91	89	444	157	126	391	214	235	102	76	55
28	103	92	84	433	169	128	454	197	220	99	72	238
29	100	98	84	397	---	120	436	184	216	99	66	336
30	100	106	73	329	---	121	364	177	199	91	62	267

31	96	---	86	296	---	126	---	164	---	87	61	---

TOTAL	3312	3867	3313	6564	6764	4843	8258	8642	16332	3860	2327	2287
MEAN	107	129	107	212	242	156	275	279	544	125	75.1	76.2
MAX	288	367	188	804	426	205	956	575	2660	191	94	336
MIN	49	78	73	72	147	120	106	164	159	87	59	45
CFSM	.56	.67	.56	1.10	1.26	.81	1.43	1.45	2.84	.65	.39	.40
IN.	.64	.75	.64	1.27	1.31	.94	1.60	1.67	3.16	.75	.45	.44

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1966 - 1999, BY WATER YEAR (WY)
MEAN	103	125	145	124	166	252	263	184	170	114	88.4	111
MAX	473	372	493	316	455	554	652	542	544	522	258	579
(WY)	1987	1986	1983	1974	1971	1979	1993	1974	1999	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 1998 CALENDAR YEAR		FOR 1999 WATER YEAR		WATER YEARS 1966 - 1999
ANNUAL TOTAL	58773		70369
ANNUAL MEAN	161		193		154
HIGHEST ANNUAL MEAN					288	1974
LOWEST ANNUAL MEAN					52.4	1977
HIGHEST DAILY MEAN	735	Jun 29	2660	Jun 15	2660	Jun 15 1999
LOWEST DAILY MEAN	41	Sep 13	45	Sep 25	10	Aug 6 1988
ANNUAL SEVEN-DAY MINIMUM	46	Sep 8	49	Sep 19	14	Aug 2 1988
INSTANTANEOUS PEAK FLOW			2870	Jun 15	2910	Sep 26 1986
INSTANTANEOUS PEAK STAGE			13.73	Jun 15	14.26	Sep 26 1986
INSTANTANEOUS LOW FLOW			41	Sep 21,24,25	6.6	Aug 7 1988
ANNUAL RUNOFF (CFSM)	.84		1.00		.80
ANNUAL RUNOFF (INCHES)	11.39		13.63		10.87
10 PERCENT EXCEEDS	314		356		312
50 PERCENT EXCEEDS	123		128		100
90 PERCENT EXCEEDS	58		67		42