05512500 DATA: Discharge Tables, 2000

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 1994-2000.

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.-- Records good except those for estimated daily discharges, which are poor. Effluent from sewage-treatment plant upstream at Pittsfield averaged 0.95 ft³/s.

DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	.66	.46	e.31	1.0	e.60	3.5	1.7	7.7	.49	10	3.3	2.1
2	.78	.52	e.32	.99	e.64	2.8	1.9	9.1	.47	59	2.4	2.1
3	1.6	.55	e.33	1.1	e.69	2.4	1.8	10	.55	161	2.2	1.9
4	.71	.48	6.1	1.1	e.74	3.3	1.6	10	5.0	349	1.9	1.9
5	.65	.44	5.2	.88	e.76	3.3	1.5	11	2.9	107	1.8	2.2

6	.57	.41	2.8	.94	e.78	2.9	1.6	11	.63	42	1.7	2.0
7	.58	.45	1.5	.89	e.80	3.2	2.6	13	.46	23	1.6	2.0
8	.79	.37	1.2	.91	.83	3.6	2.4	10	.38	15	37	2.1
9	.43	.41	1.2	1.0	1.1	3.3	2.8	10	.30	10	6.8	2.1
10	.46	.44	1.2	1.1	1.7	3.3	2.7	3.7	.42	7.8	2.8	2.1

11	.54	.49	1.1	1.1	1.4	3.8	2.8	1.9	98	71	2.2	2.6
12	.54	.43	1.1	1.0	1.1	3.6	2.7	1.2	8.9	19	1.9	2.8
13	.52	.40	.94	1.0	1.1	3.5	2.5	.91	2.2	11	1.5	2.0
14	.44	.37	.93	.89	1.0	3.5	2.4	.79	2.2	7.7	1.5	2.2
15	.43	.36	1.2	.87	.91	3.7	2.6	.80	1.5	5.8	1.3	2.1

16	.33	.33	.99	e.74	.79	4.4	4.9	.91	1.3	4.7	1.2	1.9
17	.31	.35	.93	e.66	.92	4.7	6.9	.93	e1.2	4.6	1.2	1.9
18	.24	.32	.94	e.70	9.3	4.7	1.9	1.1	e1.1	4.8	1.1	1.8
19	.31	.31	.87	e.74	3.7	5.3	4.0	.99	e1.0	3.8	1.3	1.8
20	.31	.28	.88	e.68	1.8	4.8	102	.95	e170	3.5	1.1	2.2

21	.26	.30	.82	e.64	1.4	3.6	4.6	1.1	99	3.2	1.0	2.0
22	.41	.33	e.74	e.60	3.1	2.7	2.0	.97	12	2.6	74	2.1
23	.54	.45	e.68	e.56	3.2	2.3	2.2	.95	127	2.4	175	2.3
24	.47	e.38	e.66	e.53	3.8	2.4	2.1	.86	348	2.4	17	3.9
25	.47	e.36	e.64	e.51	5.6	3.8	1.6	.95	79	2.0	4.3	5.3

26	.55	e.39	e.66	e.49	5.5	7.4	1.3	19	496	1.9	3.3	3.2
27	.34	e.36	e.70	e.47	3.3	5.4	3.0	207	55	1.6	2.7	2.4
28	.36	e.34	.76	e.45	2.7	2.7	1.8	4.4	29	216	2.6	2.1
29	.41	e.33	.82	e.48	2.3	1.8	3.5	2.3	19	17	2.6	2.1
30	.44	e.36	.85	e.52	---	1.4	6.5	1.3	13	6.1	2.2	2.1

31	.45	---	.88	e.56	---	1.7	---	.70	---	4.4	2.3	---

TOTAL	15.90	11.77	38.25	24.10	61.56	108.8	181.9	345.51	1576.00	1179.3	362.8	69.3
MEAN	.51	.39	1.23	.78	2.12	3.51	6.06	11.1	52.5	38.0	11.7	2.31
MAX	1.6	.55	6.1	1.1	9.3	7.4	102	207	496	349	175	5.3
MIN	.24	.28	.31	.45	.60	1.4	1.3	.70	.30	1.6	1.0	1.8
CFSM	.01	.01	.03	.02	.05	.09	.15	.28	1.33	.97	.30	.06
IN.	.02	.01	.04	.02	.06	.10	.17	.33	1.49	1.11	.34	.07

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 2000, BY WATER YEAR (WY)
MEAN	12.4	17.1	17.5	17.2	30.6	39.9	49.8	50.2	30.7	27.0	13.1	19.7
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 1999 CALENDAR YEAR		FOR 2000 WATER YEAR		WATER YEARS 1940 - 2000
ANNUAL TOTAL	9601.12		3975.19
ANNUAL MEAN	26.3		10.9		27.0
HIGHEST ANNUAL MEAN					94.8	1993
LOWEST ANNUAL MEAN					2.76	1940
HIGHEST DAILY MEAN	910	Apr 16	496	Jun 26	5660	Jul 26 1981
LOWEST DAILY MEAN	.23 A	Sep 18	.24	Oct 18	.00	B
ANNUAL SEVEN-DAY MINIMUM	.25 A	Sep 13	.31	Oct 16	.00	Aug 19 1941
INSTANTANEOUS PEAK FLOW			2440	Jun 26	13700 C	Sep 14 1993
INSTANTANEOUS PEAK STAGE			9.57	Jun 26	14.92	Sep 14 1993
INSTANTANEOUS LOW FLOW			.15	D
ANNUAL RUNOFF (CFSM)	.67		.28		.69
ANNUAL RUNOFF (INCHES)	9.07		3.75		9.32
10 PERCENT EXCEEDS	56		10		39
50 PERCENT EXCEEDS	3.8		1.7		3.6
90 PERCENT EXCEEDS	.33		.43		.30

A - Estimated.
B - Several days in most years.
C - From rating curve extended above 4,400 ft³/s.
D - Oct. 22, Nov. 20.