Station list     Available data
BAY CREEK BASIN


05512500                         BAY CREEK AT PITTSFIELD, IL



LOCATION.--Lat 39°37'30", long 90°47'40", 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.--October 1939 to current year.

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

GAGE.--Water-stage recorder 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.--Records good except those for estimated daily discharges, which are poor. Effluent from sewage-treatment plant upstream at Pittsfield averaged 1.12 ft3/s. Gage-height telemeter at station.

EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of Sept. 8, 1926, reached a stage of 18.4 ft, from floodmark, 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 1.2 1.4 7.6 e3.5 85  26  17  20    24    55      .97 .42
2 2.6 316    6.9 e4.0 66  39  16  18    21    6.9   .92 e.39
3 2.1 158    6.8 e4.7 41  38  45  17    13    5.0   .63 e.36
4 1.0 35    7.0 e4.4 29  28  40  137    14    3.7   .73 e.34
5 94    14    6.8 e4.2 25  126  23  182    12    3.1   .66 e.32
 
6 16    9.9 9.1 e5.2 24  129  19  41    9.6 3.0   .65 e.30
7 5.1 9.3 20    e4.9 748  e40  16  31    7.6 2.8   2.5   e.28
8 3.0 14    8.2 e4.7 116  e28  197  26    7.3 2.5   .82 e.27
9 1.9 12    7.1 e4.5 69  57  153  21    6.4 2.4   .51 e.26
10 1.6 564    6.2 e4.3 54  70  60  18    13    2.0   .72 e.25
 
11 1.6 47    6.0 e4.2 125  142  40  16    130    1.8   .37 e.25
12 1.2 26    6.2 e4.1 71  132  31  19    29    2.2   1.7   e.32
13 1.7 22    6.2 e4.0 43  92  26  22    18    2.2   1.6   e.28
14 1.2 18    6.4 e3.9 39  66  24  15    11    1.7   .62 e.27
15 1.6 15    6.3 e3.8 37  59  743  17    8.8 1.3   .52 e.26
 
16 1.3 14    6.4 e4.5 46  48  910  16    7.7 1.3   .61 e.25
17 3.5 12    5.8 e7.0 41  37  156  181    7.3 2.1   .67 e.24
18 19    12    5.8 e13    35  29  86  34    6.8 1.3   .37 e.23
19 3.6 11    11    e11    34  27  65  23    5.8 .99 .42 e.25
20 2.0 8.6 7.4 e9.2 31  27  53  20    5.3 1.6   .37 e.32
 
21 1.7 7.8 6.6 e20    28  25  56  21    5.7 1.1   .35 e.30
22 1.3 7.8 4.9 e200    26  23  43  19    5.8 .91 .45 e.28
23 1.2 8.1 4.4 285    29  27  42  15    5.2 1.1   1.9   e.26
24 1.3 7.1 4.5 137    29  25  31  13    7.0 .92 2.5   e.25
25 1.3 7.9 4.7 101    37  22  27  12    4.5 .75 .93 e.25
 
26 1.4 6.9 5.2 72    40  19  31  11    3.9 .62 .52 e.25
27 1.8 6.3 6.2 187    36  19  29  10    3.8 1.2   .75 e.30
28 2.0 6.4 6.5 66    30  19  52  9.7 3.8 2.0   .69 2.1  
29 8.9 6.8 6.0 39    ---  18  34  9.3 3.3 .83 .42 .63
30 6.3 7.7 4.4 32    ---  17  23  16    3.3 .61 .44 .60
 
31 2.6 ---    e3.3 133    ---  17  ---  17    ---    .47 .41 ---     

TOTAL 195.0 1392.0 209.9 1381.1 2014 1471 3088 1027.0 403.9 113.40 25.72 11.08
MEAN 6.29 46.4 6.77 44.6 71.9 47.5 103 33.1 13.5 3.66 .83 .37
MAX 94 564 20 285 748 142 910 182 130 55 2.5 2.1
MIN 1.0 1.4 3.3 3.5 24 17 16 9.3 3.3 .47 .35 .23
CFSM .16 1.18 .17 1.13 1.83 1.20 2.61 .84 .34 .09 .02 .01
IN. .18 1.31 .20 1.30 1.90 1.39 2.92 .97 .38 .11 .02 .01

e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 1999, BY WATER YEAR (WY)
MEAN 12.6 17.3 17.7 17.5 31.0 40.5 50.5 50.9 30.3 26.8 13.1 20.0
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 1998 CALENDAR YEAR FOR 1999 WATER YEAR WATER YEARS 1940 - 1999
ANNUAL TOTAL 17196.38 11332.10    
ANNUAL MEAN 47.1   31.0       27.3      
HIGHEST ANNUAL MEAN 94.8       1993
LOWEST ANNUAL MEAN 2.76     1940
HIGHEST DAILY MEAN 886          Jun 11 910              Apr 16 5660          Jul 26 1981
LOWEST DAILY MEAN .70     Sep 6 .23 A     Sep 18 .00     B
ANNUAL SEVEN-DAY MINIMUM .87     Sep 3 .25         Sep 13 .00     Aug 19 1941
INSTANTANEOUS PEAK FLOW 2340              Nov 10 13700      C Sep 14 1993
INSTANTANEOUS PEAK STAGE 9.35         Nov 10 14.92     Sep 14 1993
INSTANTANEOUS LOW FLOW .18 D     Aug 18
ANNUAL RUNOFF (CFSM) 1.20 .79     .69    
ANNUAL RUNOFF (INCHES) 16.24 10.70     9.42    
10 PERCENT EXCEEDS 112      65          39         
50 PERCENT EXCEEDS 10      7.4       3.7      
90 PERCENT EXCEEDS 1.4   .46     .30    
A - Estimated.
B - Several days in most years.
C - From rating curve extended above 4,400 ft3/s.
D - Minimum recorded, may have been less during period of estimated discharges in September.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data