USGS CD-ROM: Current Year Discharge

05528000 DES PLAINES RIVER NEAR GURNEE, IL

LOCATION.--Lat 42°20'39", long 87°56'18", in SE¼SW¼ sec.27, T.45 N., R.11 E., Lake County, Hydrologic Unit 07120004, on left bank 800 ft upstream from bridge on State Highway 120, 2.5 mi southwest of Gurnee, and at mile 94.2.

DRAINAGE AREA.--232 mi².

PERIOD OF RECORD.--October 1945 to September 1958, and annual maximum, water years 1960-68, October 1968 to current year. REVISED RECORDS.--WDR IL-75-1: Drainage area. WDR IL-76-1: 1960(M), 1962(M). WDR IL-77-1: 1971.

GAGE.--Water-stage recorder. Datum of gage is 650.30 ft above sea level (U.S. Army Corps of Engineers bench mark). Prior to May 26, 1946, nonrecording gage at site 825 ft downstream at same datum. May 27, 1946, to Sept. 30, 1958, water-stage recorder at site 800 ft downstream at same datum. Dec. 17, 1959, to September 1968, crest-stage gage at site 800 ft downstream at same datum.

REMARKS.--Records good, except those for estimated daily discharge, which are poor. Effluent from sewage-treatment plants, 0.5 mi upstream, averaged about 54 ft³/s per day, with a maximum of about 81 ft³/s per day in April and a minimum of about 37 ft³/s per day in October. Recording rain gage and gage-height telemeter at station.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 3,530 ft³/s, Sept. 27, 1986, gage height, 11.95 ft; no flow Sept. 26 to Oct. 19, 1956, and part of each day Aug. 27-30, Sept. 1, 2, 1970.

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	63	75	e172	105	239	337	520	481	121	228	26	33
2	68	72	186	120	337	319	605	419	116	211	26	31
3	57	71	199	160	410	304	632	375	109	224	26	28
4	55	64	195	276	447	283	627	327	102	375	29	28
5	55	58	191	393	460	262	624	287	105	311	30	28

6	53	70	188	512	465	244	612	258	100	271	32	28
7	52	63	184	641	469	226	581	348	96	262	69	35
8	50	66	173	679	459	308	696	493	94	243	115	30
9	51	70	157	706	448	479	757	531	102	223	102	29
10	50	68	168	685	426	426	774	522	100	194	75	28

11	51	76	174	630	488	438	759	505	119	164	62	27
12	49	75	169	e590	635	433	735	489	126	137	55	27
13	63	68	159	e540	707	413	730	627	148	110	51	27
14	60	65	154	511	704	385	747	567	155	96	48	37
15	56	75	142	e450	692	349	750	528	142	83	48	76

16	56	81	141	e400	691	314	1080	473	125	73	46	45
17	54	75	143	e350	735	321	1170	411	108	57	47	48
18	53	71	146	302	759	567	1160	342	102	43	45	44
19	53	71	148	269	741	663	1120	268	125	44	43	38
20	52	73	159	241	709	696	1080	219	102	41	42	40

21	50	74	154	212	668	694	1050	190	99	35	43	37
22	49	e96	160	200	623	682	989	169	93	34	43	31
23	51	e94	155	195	580	660	914	159	83	33	42	29
24	52	e92	151	189	533	626	829	177	80	33	41	29
25	51	e90	156	174	486	586	756	165	85	32	41	28

26	67	e96	149	176	428	557	740	155	245	34	32	29
27	106	e105	139	179	404	512	674	145	205	33	31	27
28	86	e120	127	180	368	448	615	142	244	30	40	27
29	94	e135	128	197	---	391	564	145	261	28	40	26
30	84	e155	122	203	---	333	527	131	242	28	38	26

31	77	---	113	212	---	407	---	125	---	27	37	---

TOTAL	1868	2464	4902	10677	15111	13663	23417	10173	3934	3737	1445	996
MEAN	60.3	82.1	158	344	540	441	781	328	131	121	46.6	33.2
MAX	106	155	199	706	759	696	1170	627	261	375	115	76
MIN	49	58	113	105	239	226	520	125	80	27	26	26

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1977 - 1998, BY WATER YEAR (WY)
MEAN	130	188	254	168	239	464	509	291	178	156	139	139
MAX	1011	785	865	514	540	1510	1395	847	738	599	648	756
(WY)	1987	1986	1983	1993	1998	1979	1993	1996	1996	1993	1978	1986
MIN	16.6	16.5	12.7	10.6	11.9	61.8	79.9	31.3	23.1	23.9	15.0	18.3
(WY)	1977	1977	1977	1977	1977	1977	1977	1977	1977	1977	1977	1977

SUMMARY STATISTICS	FOR 1997 CALENDAR YEAR		FOR 1998 WATER YEAR		WATER YEARS 1977 - 1998
ANNUAL TOTAL	76270		92387
ANNUAL MEAN	209		253		238
HIGHEST ANNUAL MEAN					428	1993
LOWEST ANNUAL MEAN					26.8	1977
HIGHEST DAILY MEAN	1290	Feb 23	1170	Apr 17	3470	Sep 27 1986
LOWEST DAILY MEAN	45	Sep 11-14	26	A	7.5	Feb 6 1977
ANNUAL SEVEN-DAY MINIMUM	46	Sep 10	27	Jul 29	7.9	Jan 31 1977
INSTANTANEOUS PEAK FLOW			1180	Apr 17	3530	Sep 27 1986
INSTANTANEOUS PEAK STAGE			7.53	Apr 17	11.95	Sep 27 1986
INSTANTANEOUS LOW FLOW			20	Aug 1
10 PERCENT EXCEEDS	482		661		574
50 PERCENT EXCEEDS	141		149		123
90 PERCENT EXCEEDS	53		33		43

A - Aug. 1, 2, 3, Sept. 29, 30.