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.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data