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 about 1.73 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 1997 TO SEPTEMBER 1998
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
 
1 1.3   e.50 3.7 e2.4 16    60  66  76    11    24    2.7 2.0  
2 1.0   e.45 2.1 e3.0 16    46  39  81    9.7 17    2.4 1.2  
3 .88 e.40 2.2 5.1 11    40  460  35    8.6 14    2.8 1.0  
4 .79 e.37 2.1 8.4 11    35  145  27    9.4 23    12    .97
5 .53 8.9   1.8 14    10    31  74  22    14    14    18    .82
 
6 .50 8.4   1.4 25    8.6 28  54  38    9.1 12    3.8 .70
7 .50 1.9   1.1 42    8.1 26  48  112    7.3 21    7.6 .77
8 .54 1.1   1.1 244    7.3 371  39  41    83    18    7.1 .82
9 .89 .80 1.6 98    7.1 233  35  26    322    10    2.8 1.0  
10 .69 e.60 2.0 31    7.9 76  30  21    25    19    2.7 1.4  
 
11 .67 e.52 2.5 15    660    44  27  18    886    17    2.9 1.3  
12 .71 e.45 2.2 11    163    35  24  20    353    9.4 2.5 1.3  
13 1.2   e.40 1.8 7.6 82    92  48  15    60    7.8 2.2 1.7  
14 .44 e.80 1.5 6.2 55    102  72  13    140    6.9 2.1 5.4  
15 .44 e.60 1.4 e5.4 43    51  208  12    84    6.2 1.8 5.3  
 
16 .37 e.50 1.9 e5.0 138    40  57  11    46    5.8 1.5 1.9  
17 .32 e.45 2.4 e4.5 350    682  37  9.0 28    5.3 1.4 1.9  
18 e.29 e.40 2.3 e4.2 232    281  30  8.1 23    4.6 1.2 1.9  
19 e.27 e.37 2.5 e4.0 134    104  26  7.5 32    4.1 1.1 1.7  
20 e.26 e.35 2.4 e3.8 97    246  23  7.0 32    3.8 1.0 1.6  
 
21 e.25 e.60 2.0 e3.7 69    261  20  20    134    3.6 1.0 2.0  
22 e.24 e.50 4.8 e3.7 52    113  19  858    325    3.4 1.1 1.7  
23 e.23 e.45 3.9 e3.8 44    68  17  156    50    3.3 1.1 1.1  
24 e.80 e.42 27    e4.0 37    52  16  149    28    2.9 1.1 1.5  
25 e.60 e.39 18    4.5 31    46  17  61    19    3.0 1.0 34     
 
26 1.8   e.37 4.7 8.8 147    38  15  100    15    3.2 1.1 3.6  
27 .73 e.35 3.1 44    766    34  12  32    12    3.3 1.0 1.6  
28 .93 3.1   2.7 88    94    134  122  21    47    3.1 1.1 2.0  
29 e.70 6.8   e2.2 64    ---    57  146  17    315    2.9 1.2 2.3  
30 e.60 15      e2.0 26    ---    42  50  15    118    4.5 1.1 1.2  
 
31 e.55 ---      e2.0 18    ---    105  ---  13    ---    4.0 1.5 ---     

TOTAL 20.02 56.24 112.4 808.1 3297.0 3573 1976 2041.6 3246.1 280.1 91.9 85.68
MEAN .65 1.87 3.63 26.1 118 115 65.9 65.9 108 9.04 2.96 2.86
MAX 1.8 15 27 244 766 682 460 858 886 24 18 34
MIN .23 .35 1.1 2.4 7.1 26 12 7.0 7.3 2.9 1.0 .70
CFSM .02 .05 .09 .66 2.99 2.93 1.67 1.67 2.75 .23 .08 .07
IN. .02 .05 .11 .76 3.11 3.37 1.87 1.93 3.06 .26 .09 .08

e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 1998, BY WATER YEAR (WY)
MEAN 12.7 16.8 17.9 17.0 30.4 40.4 49.6 51.2 30.6 27.2 13.3 20.4
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 1997 CALENDAR YEAR FOR 1998 WATER YEAR WATER YEARS 1940 - 1998
ANNUAL TOTAL 4559.92     15588.14    
ANNUAL MEAN 12.5       42.7       27.2      
HIGHEST ANNUAL MEAN 94.8       1993
LOWEST ANNUAL MEAN 2.76     1940
HIGHEST DAILY MEAN 368              Feb 21 886              Jun 11 5660          Jul 26 1981
LOWEST DAILY MEAN .23 A     Oct 23 .23 A     Oct 23 .00     B
ANNUAL SEVEN-DAY MINIMUM .27         Oct 17 .27         Oct 17 .00     Aug 19 1941
INSTANTANEOUS PEAK FLOW 2630              May 22 13700      C Sep 14 1993
INSTANTANEOUS PEAK STAGE 9.96         May 22 14.92     Sep 14 1993
INSTANTANEOUS LOW FLOW     D
ANNUAL RUNOFF (CFSM) .32     1.08     .69    
ANNUAL RUNOFF (INCHES) 4.31     14.72     9.39    
10 PERCENT EXCEEDS 24          103          38         
50 PERCENT EXCEEDS 2.3       7.6       3.7      
90 PERCENT EXCEEDS .50     .60     .30    
A - Estimated.
B - Several days in most years.
C - From rating curve extended above 4,400 ft3/s.
D - Minimum recorded, 0.13 ft3/s, Oct. 16-18, but may have been less during periods of estimated discharge in Oct. and Nov.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data