05536215 DATA: Discharge Tables, 1999

Station list Available data
ILLINOIS RIVER BASIN

05536215 THORN CREEK AT GLENWOOD, IL

LOCATION.--Lat 41°31'50", long 87°36'20", in SW1/4SE1/4 sec.9, T.35 N., R.14 E., Cook County, Hydrologic Unit 07120003, on right bank 20 ft downstream from abandoned Baltimore and Ohio Chicago Terminal Railroad bridge, 0.7 mi north of Chicago Heights, 0.8 mi south of Glenwood, 1.0 mi upstream from Deer Creek, and at mile 9.2.

DRAINAGE AREA.--24.7 mi².

PERIOD OF RECORD.--May 1949 to current year. Prior to October 1974, records published with those for streams in the St. Lawrence River basin (WSP 1307, 1727, 1911, 2111, WDR IL 1971-74).

REVISED RECORDS.--WSP 1437: 1955. WDR IL-75-1: Drainage area.

GAGE.--Water-stage recorder. Datum of gage is 610.97 ft above sea level.

REMARKS.--Records fair except those for estimated daily discharges, which are poor. Effluent from sewage-treatment plant upstream averaged 23.4 ft³/s and consists of publicly supplied water from Lake Michigan and ground-water sources. The maximum monthly effluent was 41.5 ft³/s in April, and the minimum was 15.8 ft³/s in September.

EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of Apr. 1947, reached a stage of 12.94 ft, from floodmarks, discharge not determined.

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	24	24	23	14	58	35	25	67	207	73	31	23
2	32	23	20	15	98	40	24	57	287	35	26	23
3	38	22	18	16	78	45	25	50	84	31	24	23
4	25	22	20	16	60	36	50	45	55	28	25	23
5	24	31	20	16	47	48	26	45	46	29	24	23

6	43	22	154	16	45	78	40	68	39	28	24	23
7	27	21	118	16	43	60	27	47	36	26	24	24
8	24	23	55	16	41	48	35	42	33	28	23	25
9	23	26	35	16	39	45	122	39	37	28	23	26
10	23	119	29	16	35	48	77	37	40	28	24	25

11	22	39	26	16	40	48	111	39	43	26	24	25
12	22	32	25	16	39	51	64	128	51	25	50	28
13	22	29	21	17	33	50	47	93	157	25	34	29
14	21	28	23	17	30	49	38	61	91	25	28	25
15	22	26	21	17	30	58	112	48	51	25	25	25

16	19	25	20	23	30	83	347	42	39	25	24	25
17	28	23	20	51	28	117	150	51	33	32	24	24
18	52	23	19	87	27	81	84	45	32	27	24	24
19	26	23	20	40	26	55	63	38	31	27	78	24
20	24	23	18	35	26	45	52	36	30	28	28	25

21	24	23	20	68	25	39	51	44	29	41	25	28
22	26	22	19	453	23	35	197	44	59	47	22	26
23	25	22	19	630	23	32	467	77	47	31	25	25
24	24	21	19	325	22	30	145	48	58	28	64	26
25	23	23	17	151	26	28	85	41	41	26	60	26

26	22	23	18	97	27	27	64	35	39	25	35	26
27	52	20	18	122	64	27	384	34	38	26	30	26
28	45	21	17	125	43	26	461	32	33	25	28	65
29	32	21	18	79	---	26	143	31	33	25	25	45
30	33	32	17	64	---	25	85	29	30	26	24	25

31	27	---	16	56	---	24	---	80	---	32	24	---

TOTAL	874	832	903	2646	1106	1439	3601	1573	1829	931	949	810
MEAN	28.2	27.7	29.1	85.4	39.5	46.4	120	50.7	61.0	30.0	30.6	27.0
MAX	52	119	154	630	98	117	467	128	287	73	78	65
MIN	19	20	16	14	22	24	24	29	29	25	22	23

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1949 - 1999, BY WATER YEAR (WY)
MEAN	26.9	34.2	38.5	36.7	41.6	58.9	61.4	48.9	44.0	33.6	29.0	28.0
MAX	87.1	108	172	97.7	136	188	120	153	138	147	85.2	108
(WY)	1955	1991	1983	1993	1997	1979	1999	1996	1993	1996	1968	1961
MIN	11.0	9.31	11.4	12.0	19.3	20.8	19.3	18.2	12.4	14.0	11.8	9.28
(WY)	1950	1950	1954	1954	1964	1981	1971	1954	1949	1952	1949	1949

SUMMARY STATISTICS	FOR 1998 CALENDAR YEAR		FOR 1999 WATER YEAR		WATER YEARS 1949 - 1999
ANNUAL TOTAL	20487		17493
ANNUAL MEAN	56.1		47.9		40.2
HIGHEST ANNUAL MEAN					67.9	1993
LOWEST ANNUAL MEAN					24.8	1954
HIGHEST DAILY MEAN	919	May 7	630	Jan 23	1500	A
LOWEST DAILY MEAN	16	Dec 31	14	Jan 1	6.0	B
ANNUAL SEVEN-DAY MINIMUM	17	Dec 25	16	Dec 31	8.5	Sep 5 1949
INSTANTANEOUS PEAK FLOW			1100	Apr 27	2700 C	Jul 18 1996
INSTANTANEOUS PEAK STAGE			9.69	Apr 27	11.26 D	Aug 17 1968
INSTANTANEOUS LOW FLOW			8.0	E	.00 F	Jun 3 1992
10 PERCENT EXCEEDS	105		80		68
50 PERCENT EXCEEDS	31		28		23
90 PERCENT EXCEEDS	21		20		15

A - Aug. 17, 1968; July 18, 1996 (estimated).
B - July 4, Aug. 21, Sept. 5, 11, 25, 1949.
C - Estimated, gage height unknown.
D - May have been higher during period of no gage-height record, July 17-20, 1996.
E - Dec. 20, Jan. 3, 5.
F - No effluent from sewage-treatment plant because of temporary equipment repair.

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	24	24	23	14	58	35	25	67	207	73	31	23
2	32	23	20	15	98	40	24	57	287	35	26	23
3	38	22	18	16	78	45	25	50	84	31	24	23
4	25	22	20	16	60	36	50	45	55	28	25	23
5	24	31	20	16	47	48	26	45	46	29	24	23

6	43	22	154	16	45	78	40	68	39	28	24	23
7	27	21	118	16	43	60	27	47	36	26	24	24
8	24	23	55	16	41	48	35	42	33	28	23	25
9	23	26	35	16	39	45	122	39	37	28	23	26
10	23	119	29	16	35	48	77	37	40	28	24	25

11	22	39	26	16	40	48	111	39	43	26	24	25
12	22	32	25	16	39	51	64	128	51	25	50	28
13	22	29	21	17	33	50	47	93	157	25	34	29
14	21	28	23	17	30	49	38	61	91	25	28	25
15	22	26	21	17	30	58	112	48	51	25	25	25

16	19	25	20	23	30	83	347	42	39	25	24	25
17	28	23	20	51	28	117	150	51	33	32	24	24
18	52	23	19	87	27	81	84	45	32	27	24	24
19	26	23	20	40	26	55	63	38	31	27	78	24
20	24	23	18	35	26	45	52	36	30	28	28	25

21	24	23	20	68	25	39	51	44	29	41	25	28
22	26	22	19	453	23	35	197	44	59	47	22	26
23	25	22	19	630	23	32	467	77	47	31	25	25
24	24	21	19	325	22	30	145	48	58	28	64	26
25	23	23	17	151	26	28	85	41	41	26	60	26

26	22	23	18	97	27	27	64	35	39	25	35	26
27	52	20	18	122	64	27	384	34	38	26	30	26
28	45	21	17	125	43	26	461	32	33	25	28	65
29	32	21	18	79	---	26	143	31	33	25	25	45
30	33	32	17	64	---	25	85	29	30	26	24	25

31	27	---	16	56	---	24	---	80	---	32	24	---

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	24	24	23	14	58	35	25	67	207	73	31	23
2	32	23	20	15	98	40	24	57	287	35	26	23
3	38	22	18	16	78	45	25	50	84	31	24	23
4	25	22	20	16	60	36	50	45	55	28	25	23
5	24	31	20	16	47	48	26	45	46	29	24	23

6	43	22	154	16	45	78	40	68	39	28	24	23
7	27	21	118	16	43	60	27	47	36	26	24	24
8	24	23	55	16	41	48	35	42	33	28	23	25
9	23	26	35	16	39	45	122	39	37	28	23	26
10	23	119	29	16	35	48	77	37	40	28	24	25

11	22	39	26	16	40	48	111	39	43	26	24	25
12	22	32	25	16	39	51	64	128	51	25	50	28
13	22	29	21	17	33	50	47	93	157	25	34	29
14	21	28	23	17	30	49	38	61	91	25	28	25
15	22	26	21	17	30	58	112	48	51	25	25	25

16	19	25	20	23	30	83	347	42	39	25	24	25
17	28	23	20	51	28	117	150	51	33	32	24	24
18	52	23	19	87	27	81	84	45	32	27	24	24
19	26	23	20	40	26	55	63	38	31	27	78	24
20	24	23	18	35	26	45	52	36	30	28	28	25

21	24	23	20	68	25	39	51	44	29	41	25	28
22	26	22	19	453	23	35	197	44	59	47	22	26
23	25	22	19	630	23	32	467	77	47	31	25	25
24	24	21	19	325	22	30	145	48	58	28	64	26
25	23	23	17	151	26	28	85	41	41	26	60	26

26	22	23	18	97	27	27	64	35	39	25	35	26
27	52	20	18	122	64	27	384	34	38	26	30	26
28	45	21	17	125	43	26	461	32	33	25	28	65
29	32	21	18	79	---	26	143	31	33	25	25	45
30	33	32	17	64	---	25	85	29	30	26	24	25

31	27	---	16	56	---	24	---	80	---	32	24	---

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	24	24	23	14	58	35	25	67	207	73	31	23
2	32	23	20	15	98	40	24	57	287	35	26	23
3	38	22	18	16	78	45	25	50	84	31	24	23
4	25	22	20	16	60	36	50	45	55	28	25	23
5	24	31	20	16	47	48	26	45	46	29	24	23

6	43	22	154	16	45	78	40	68	39	28	24	23
7	27	21	118	16	43	60	27	47	36	26	24	24
8	24	23	55	16	41	48	35	42	33	28	23	25
9	23	26	35	16	39	45	122	39	37	28	23	26
10	23	119	29	16	35	48	77	37	40	28	24	25

11	22	39	26	16	40	48	111	39	43	26	24	25
12	22	32	25	16	39	51	64	128	51	25	50	28
13	22	29	21	17	33	50	47	93	157	25	34	29
14	21	28	23	17	30	49	38	61	91	25	28	25
15	22	26	21	17	30	58	112	48	51	25	25	25

16	19	25	20	23	30	83	347	42	39	25	24	25
17	28	23	20	51	28	117	150	51	33	32	24	24
18	52	23	19	87	27	81	84	45	32	27	24	24
19	26	23	20	40	26	55	63	38	31	27	78	24
20	24	23	18	35	26	45	52	36	30	28	28	25

21	24	23	20	68	25	39	51	44	29	41	25	28
22	26	22	19	453	23	35	197	44	59	47	22	26
23	25	22	19	630	23	32	467	77	47	31	25	25
24	24	21	19	325	22	30	145	48	58	28	64	26
25	23	23	17	151	26	28	85	41	41	26	60	26

26	22	23	18	97	27	27	64	35	39	25	35	26
27	52	20	18	122	64	27	384	34	38	26	30	26
28	45	21	17	125	43	26	461	32	33	25	28	65
29	32	21	18	79	---	26	143	31	33	25	25	45
30	33	32	17	64	---	25	85	29	30	26	24	25

31	27	---	16	56	---	24	---	80	---	32	24	---