05512500 DATA: Discharge Tables, 2001

Station list Available data
BAY CREEK BASIN

05512500 BAY CREEK AT PITTSFIELD, IL

LOCATION.-- Lat 39°37'31", long 90°47'38", in NE1/4SW1/4 sec.18, T.5 S., R.3 W., Pike County, Hydrologic Unit 07110004, on right bank at downstream side of bridge on abandoned county road, 50 ft downstream from Panther Creek, 0.1 mi downstream from U.S. Highway 54, 1.4 mi northeast of Pittsfield, and at mile 33.6.

DRAINAGE AREA.-- 39.4 mi².

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE

DISCHARGE: October 1939 to current year.

STAGE: Water years 1994-2001.

REVISED RECORDS.-- WSP 1175: 1940(P), 1941, 1949. WSP 1508: 1942. WDR IL-75-1: Drainage area.

GAGE.-- Water-stage recorder, phone telemeter, and crest-stage gage. Datum of gage is 638.48 ft above sea level (levels by U.S. Army Corps of Engineers). Prior to Dec. 7, 1939, nonrecording gage at same site and datum.

REMARKS.-- Effluent from sewage-treatment plant upstream at Pittsfield.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 13,700 ft³/s, Sept. 14, 1993, gage height, 14.92 ft, from rating curve extended above 4,400 ft³/s; no flow during many periods.

EXTREMES OUTSIDE PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Flood of Sept. 8, 1926, reached a stage of 18.4 ft, from floodmark, discharge not determined.

REMARKS FOR CURRENT YEAR.-- Reords poor. Effluent from sewage-treatment plant upstream at Pittsfield averaged 1.52 ft³/s.

DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2000 TO SEPTEMBER 2001 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	1.9	3.1	3.3	e2.1	23	37	14	9.4	95	1.9	.49	1.3
2	2.0	2.7	3.1	e2.2	16	40	14	e8.4	172	1.3	4.1	1.1
3	1.9	2.9	2.7	e2.3	15	39	14	e8.0	30	1.5	.72	1.0
4	2.2	2.7	2.8	e2.4	14	31	13	e7.7	588	1.7	.52	1.0
5	51	2.4	2.7	e2.4	13	22	13	e7.5	217	1.2	.44	.92

6	8.4	16	2.5	e2.4	14	20	14	e8.0	3280	1.0	.40	31
7	3.1	16	2.7	e2.3	15	19	13	e10	225	.99	.42	6.3
8	2.5	4.1	2.7	e2.3	70	18	11	7.8	182	.87	.44	1.3
9	2.3	28	2.3	e2.2	584	17	11	7.2	103	.80	5.6	3.0
10	2.3	11	2.2	e2.1	57	17	35	7.0	56	.75	1.9	2.1

11	2.2	4.9	e3.0	e2.1	22	16	163	6.4	35	.68	.77	1.2
12	2.1	4.1	e3.4	e2.3	18	17	76	6.4	24	.91	.56	1.0
13	2.2	3.7	e2.7	e3.0	17	16	25	6.2	17	.87	.48	.98
14	3.1	3.4	e2.6	23	46	14	19	8.0	95	.85	.42	1.0
15	2.7	3.2	e2.5	47	35	71	17	7.2	320	.82	.50	1.1

16	2.6	3.5	e2.4	17	19	487	14	6.3	56	.77	.61	.91
17	2.7	3.1	e2.3	10	14	136	13	27	26	.65	.51	5.4
18	2.7	2.9	e2.2	8.6	14	62	12	55	17	.77	.51	130
19	2.6	3.1	e2.1	7.3	14	43	12	13	13	96	.45	89
20	2.6	3.1	e2.0	5.6	13	32	12	9.5	13	8.1	.45	32

21	2.4	2.6	e1.9	4.9	11	26	17	18	55	1.6	.48	51
22	2.5	2.6	e1.8	4.7	11	22	13	9.7	16	.75	.51	8.4
23	2.5	2.9	e1.7	4.8	11	20	23	8.4	10	1.2	246	6.7
24	2.5	2.9	e1.7	4.6	1080	18	14	7.8	7.5	.55	43	3.4
25	2.5	3.6	e1.6	3.9	366	17	12	8.3	6.3	6.5	5.4	3.6

26	2.7	4.0	e1.6	4.2	98	16	11	9.3	5.3	1.5	2.4	2.1
27	2.8	3.6	e1.7	3.7	67	16	11	9.4	3.9	.75	1.7	1.2
28	2.7	3.1	e1.7	8.8	44	16	10	7.7	3.8	.66	1.3	1.9
29	2.7	3.0	e1.8	1420	---	16	9.5	6.8	2.7	.60	1.1	1.7
30	2.8	2.8	e1.9	310	---	15	9.1	17	2.6	.54	2.3	1.5

31	3.0	---	e2.0	70	---	15	---	341	---	.50	1.4	---

TOTAL	132.2	155.0	71.6	1988.2	2721	1351	644.6	669.4	5677.1	137.58	325.88	393.11
MEAN	4.26	5.17	2.31	64.1	97.2	43.6	21.5	21.6	189	4.44	10.5	13.1
MAX	51	28	3.4	1420	1080	487	163	341	3280	96	246	130
MIN	1.9	2.4	1.6	2.1	11	14	9.1	6.2	2.6	.50	.40	.91
CFSM	.11	.13	.06	1.63	2.47	1.11	.55	.55	4.80	.11	.27	.33
IN.	.12	.15	.07	1.88	2.57	1.28	.61	.63	5.36	.13	.31	.37

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 2001, BY WATER YEAR (WY)
MEAN	12.3	16.9	17.2	18.0	31.6	40.0	49.3	49.8	33.2	26.6	13.0	19.6
MAX	140	201	142	114	126	132	207	283	243	417	103	359
(WY)	1942	1986	1983	1974	1942	1973	1973	1970	1945	1981	1961	1993
MIN	.20	.19	.081	.057	.27	.45	3.61	1.23	.94	.10	.074	.057
(WY)	1951	1951	1951	1940	1954	1956	1963	1954	1977	1940	1941	1940

SUMMARY STATISTICS	FOR 2000 CALENDAR YEAR		FOR 2001 WATER YEAR		WATER YEARS 1940 - 2001
ANNUAL TOTAL	4268.07		14266.67
ANNUAL MEAN	11.7		39.1		27.2
HIGHEST ANNUAL MEAN					94.8	1993
LOWEST ANNUAL MEAN					2.76	1940
HIGHEST DAILY MEAN	496	Jun 26	3280	Jun 6	5660	Jul 26 1981
LOWEST DAILY MEAN	.30	Jun 9	.40	Aug 6	.00	A
ANNUAL SEVEN-DAY MINIMUM	.49	Jan 24	.49	Aug 14	.00	Aug 19 1941
MAXIMUM PEAK FLOW			9290	Jun 6	13700 B	Sep 14 1993
MAXIMUM PEAK STAGE			13.70 C	Jun 6	14.92	Sep 14 1993
INSTANTANEOUS LOW FLOW			.31	Aug 15,21
ANNUAL RUNOFF (CFSM)	.30		.99		.69
ANNUAL RUNOFF (INCHES)	4.03		13.47		9.39
10 PERCENT EXCEEDS	11		51		39
50 PERCENT EXCEEDS	2.5		4.7		3.6
90 PERCENT EXCEEDS	.85		.89		.30

	A- Several days in most years.
	B- From rating curve extended above 4,400 ft³/s.
	C- From floodmark.