Station list     Available data
BIG MUDDY RIVER BASIN


05595820                         CASEY FORK AT MT. VERNON, IL



LOCATION.--Lat 38°17'12", long 88°52'19", in NW1/4NW1/4 sec.9, T.3 S., R.3 E., Jefferson County, Hydrologic Unit 07140106, on left bank on upstream side of bridge on State Highway 142, 0.2 mi downstream from Sevenmile Creek, about 2 mi southeast of Mt. Vernon, and at mile 18.8.

DRAINAGE AREA.--76.9 mi2.

PERIOD OF RECORD.--October 1985 to current year. October 1985 to September 1994 (8 AM gage heights). Gage-height record for April 1965 to May 1971 available in files of U.S. Army Corps of Engineers.

GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 420.00 ft above sea level (levels by U.S. Army Corps of Engineers).

REMARKS.--Records good except those for estimated daily discharges, which are poor. Effluent from sewage-treatment plant upstream at Mt. Vernon averaged about 4.6 ft3/s. Gage height telemeter at station.

EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of Apr. 4, 1968, reached a stage of 14.60 ft, from records of U.S. Army Corps of Engineers.
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 2.9 e3.3 5.1 e5.0 2190  113  39  20    16    12    4.9 3.0
2 2.8 e4.5 4.3 e50    367  74  35  17    244    556    4.4 3.0
3 2.7 e6.0 4.6 e90    145  59  1240  15    54    211    3.8 3.0
4 2.7 e4.5 4.4 e45    88  41  2740  14    30    38    3.9 2.9
5 2.8 e4.0 5.1 e25    57  45  391  437    41    20    3.7 2.9
 
6 18    e3.7 4.8 e16    51  1500  1190  842    24    14    4.0 3.2
7 15    e3.5 15    e13    3420  241  251  211    14    10    4.2 3.1
8 11    e3.4 6.7 e11    1240  146  123  77    e160    8.1 9.6 3.1
9 6.8 e5.0 6.5 e10    163  983  91  45    e120    111    4.5 3.3
10 4.4 19    5.8 e8.5 95  284  63  32    23    1450    4.0 3.1
 
11 3.7 16    5.0 e8.0 88  133  55  23    14    184    3.9 2.8
12 3.5 13    4.5 e20    361  90  39  19    10    49    3.7 3.1
13 4.4 7.8 5.4 515    117  70  33  28    10    27    3.8 3.2
14 4.8 6.0 4.6 272    74  69  33  23    51    18    3.9 3.4
15 3.9 5.4 4.7 79    61  97  164  17    17    13    3.5 3.2
 
16 4.1 5.3 4.4 63    54  298  123  16    10    11    3.5 3.4
17 3.0 5.1 4.3 181    58  176  69  31    7.7 8.6 3.6 2.8
18 8.8 5.0 4.4 680    46  87  54  72    6.3 7.4 3.6 3.0
19 4.9 5.1 5.3 144    39  61  45  27    5.3 6.8 3.4 2.9
20 3.4 7.9 5.9 94    33  51  38  16    4.8 7.0 3.3 3.2
 
21 3.3 5.3 19    101    30  45  34  12    4.8 8.6 3.2 2.9
22 3.4 5.0 42    3230    26  37  30  9.9 4.2 7.3 3.2 2.9
23 3.5 4.8 22    1700    28  1070  26  9.6 4.5 6.3 3.3 2.9
24 3.4 4.3 12    251    34  351  22  9.9 12    5.3 3.5 3.0
25 3.5 4.9 e8.0 110    39  127  20  8.6 7.5 5.0 3.5 2.8
 
26 3.5 5.3 e7.0 67    34  81  28  7.1 79    3.7 3.4 2.7
27 e3.4 4.5 e6.5 57    90  62  32  6.2 118    4.9 3.1 2.9
28 e3.4 4.7 e7.0 47    341  51  35  5.4 31    4.9 3.2 3.1
29 e3.4 4.4 e7.0 37    ---  43  35  4.9 17    4.6 3.0 4.9
30 e3.3 4.7 e6.5 34    ---  36  29  4.6 12    4.5 3.0 3.5
 
31 e3.3 ---    e6.0 1990    ---  34  ---  4.9 ---    4.4 3.0 ---   

TOTAL 151.0 181.4 253.8 9953.5 9369 6555 7107 2065.1 1152.1 2821.4 118.6 93.2
MEAN 4.87 6.05 8.19 321 335 211 237 66.6 38.4 91.0 3.83 3.11
MAX 18 19 42 3230 3420 1500 2740 842 244 1450 9.6 4.9
MIN 2.7 3.3 4.3 5.0 26 34 20 4.6 4.2 3.7 3.0 2.7
CFSM .06 .08 .11 4.18 4.35 2.75 3.08 .87 .50 1.18 .05 .04
IN. .07 .09 .12 4.81 4.53 3.17 3.44 1.00 .56 1.36 .06 .05

e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1986 - 1999, BY WATER YEAR (WY)
MEAN 7.98 103 61.3 126 133 146 194 143 40.6 24.7 6.55 18.6
MAX 27.2 542 233 327 383 456 540 809 102 101 15.5 155
(WY) 1994 1994 1991 1993 1986 1989 1996 1995 1996 1993 1993 1993
MIN 2.86 4.34 4.51 13.1 10.4 32.2 40.1 4.46 2.98 2.71 1.65 2.06
(WY) 1996 1990 1990 1986 1996 1987 1995 1988 1991 1991 1990 1995

SUMMARY STATISTICS FOR 1998 CALENDAR YEAR FOR 1999 WATER YEAR WATER YEARS 1986 - 1999
ANNUAL TOTAL 27265.0   39821.1  
ANNUAL MEAN 74.7   109      83.3  
HIGHEST ANNUAL MEAN 123      1994
LOWEST ANNUAL MEAN 21.3   1987
HIGHEST DAILY MEAN 2890          Apr 30 3420          Feb 7 9940      May 18 1995
LOWEST DAILY MEAN 2.7       A 2.7       B .15 Sep 29 1989
ANNUAL SEVEN-DAY MINIMUM 2.9       Sep 29 2.9       Sep 21 .38 Dec 11 1989
INSTANTANEOUS PEAK FLOW 4780          Feb 7 16100      May 17 1990
INSTANTANEOUS PEAK STAGE 14.03     Feb 7 17.03 May 17 1990
INSTANTANEOUS LOW FLOW 1.8       Oct 2,5
ANNUAL RUNOFF (CFSM) .97 1.42 1.08
ANNUAL RUNOFF (INCHES) 13.19 19.26 14.72
10 PERCENT EXCEEDS 118      163      120     
50 PERCENT EXCEEDS 12      10      12     
90 PERCENT EXCEEDS 3.5   3.2   2.9  
A - Sept. 1, Oct. 3. 4.
B - Oct. 3, 4, Sept. 26.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data