Station list     Available data
KASKASKIA RIVER BASIN


05595200       RICHLAND CREEK NEAR HECKER, IL



LOCATION.-- Lat 38°19'26", long 89°58'15", in SW1/4SE1/4 sec.27 projected, T.2 S., R.8 W., St. Clair County, Hydrologic Unit 07140204, on left bank at downstream side of bridge on State Highway 156, 2 mi northeast of Hecker, 5 mi west of New Athens, and at mile 17.3.

DRAINAGE AREA.-- 129 mi2.

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE
 

DISCHARGE: October 1969 to current year.
 

STAGE: Water years 1995-2000. October 1980 to September 1994 (8 a.m. gage heights).
SURFACE-WATER QUALITY
 

CHEMICAL: Water years 1978-91.

REVISED RECORDS.-- WDR IL-75-1: Drainage area.

GAGE.-- Water-stage recorder, U.S. Army Corps of Engineers satellite telemeter and rain gage, phone telemeter, and crest-stage gage. Datum of gage is 375.00 ft above sea level. June 28, 1976, to Nov. 9, 1978, nonrecording gage at same site and datum.

REMARKS.-- Two sewage-treatment plants 13-16 mi upstream.

REMARKS FOR CURRENT YEAR.-- Records fair except those for estimated daily discharges, which are poor. Effluent from two sewage treatment plants 13-16 mi upstream averaged about 11.5 ft3/s per day.
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 8.9 11    8.8 9.7 e10    19  13  14  20    56  76  e22 
2 7.7 12    8.7 9.1 10    17  12  13  18    49  46  18 
3 8.5 10    9.6 58    12    15  13  13  15    54  37  17 
4 11    11    12    58    13    17  12  15  14    108  33  16 
5 11    10    17    23    12    15  11  14  17    51  30  16 
 
6 8.3 11    18    18    12    13  10  13  15    33  30  15 
7 7.8 9.5 12    16    12    12  33  162  13    30  196  14 
8 20    6.0 11    15    12    12  30  92  11    27  518  14 
9 21    7.3 17    18    9.6 11  19  31  9.8 25  111  15 
10 14    12    143    17    10    11  16  21  10    24  49  29 
 
11 12    12    31    13    9.9 12  12  18  11    48  36  19 
12 11    12    20    12    9.7 20  14  16  27    449  31  56 
13 8.1 9.9 17    12    14    22  13  22  106    73  28  25 
14 7.7 11    13    11    21    18  12  19  33    34  27  18 
15 7.3 9.6 11    11    14    15  11  15  48    27  24  15 
 
16 7.7 9.3 11    12    13    14  16  14  844    24  23  12 
17 11    9.0 11    11    12    14  70  15  4840    30  22  12 
18 11    8.7 10    16    148    14  22  13  676    38  363  12 
19 9.2 9.0 11    15    65    18  17  15  101    e1700  68  11 
20 9.1 9.2 10    12    25    49  17  21  62    e400  e40  10 
 
21 8.2 8.9 9.9 12    19    48  15  23  464    e130  e30  11 
22 11    10    9.7 11    16    23  14  23  89    68  e23  11 
23 8.6 12    9.7 12    15    19  14  81  48    55  e20  11 
24 8.9 17    9.6 11    20    e17  43  32  2260    47  e17  13 
25 9.1 14    9.5 11    20    e15  47  26  2340    43  e250  215 
 
26 9.7 12    9.4 12    26    e14  24  100  e350    39  100  88 
27 9.4 9.9 9.4 11    58    e80  21  1400  e180    35  e80  29 
28 9.6 9.5 9.6 10    26    25  24  256  e130    682  e150  23 
29 9.5 9.1 9.9 e9.5 18    18  20  50  e90    349  e70  21 
30 10    8.9 10    e9.0 ---    14  18  33  66    113  e40  18 
 
31 11    ---    11    e9.5 ---    13  ---  25  ---    123  e25  --- 

TOTAL 317.3 310.8 509.8 484.8 662.2 624 613 2605 12907.8 4964 2593 806
MEAN 10.2 10.4 16.4 15.6 22.8 20.1 20.4 84.0 430 160 83.6 26.9
MAX 21 17 143 58 148 80 70 1400 4840 1700 518 215
MIN 7.3 6.0 8.7 9.0 9.6 11 10 13 9.8 24 17 10
CFSM .08 .08 .13 .12 .18 .16 .16 .65 3.34 1.24 .65 .21
IN. .09 .09 .15 .14 .19 .18 .18 .75 3.72 1.43 .75 .23

e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1970 - 2000, BY WATER YEAR (WY)
MEAN 42.5 111 128 109 160 194 194 149 98.1 77.5 42.5 60.4
MAX 270 516 590 338 505 611 751 1306 430 322 271 471
(WY) 1987 1986 1983 1974 1982 1984 1994 1995 2000 1981 1998 1993
MIN 6.51 7.53 9.66 7.19 19.1 19.4 20.2 18.4 14.9 11.6 7.64 6.66
(WY) 1972 1972 1977 1977 1978 1981 1981 1988 1972 1970 1971 1976

SUMMARY STATISTICS FOR 1999 CALENDAR YEAR FOR 2000 WATER YEAR WATER YEARS 1970 - 2000
ANNUAL TOTAL 39979.8   27397.7  
ANNUAL MEAN 110      74.9   113         
HIGHEST ANNUAL MEAN 198          1973
LOWEST ANNUAL MEAN 23.5       1976
HIGHEST DAILY MEAN 4050          Feb 7 4840          Jun 17 13300          May 17 1995
LOWEST DAILY MEAN 6.0       Nov 8 6.0       Nov 8 4.2       Oct 17 1976
ANNUAL SEVEN-DAY MINIMUM 8.1       Sep 22 8.9       Oct 13 4.8       Oct 12 1976
INSTANTANEOUS PEAK FLOW 6840          Jun 17 23400          Apr 29 1996
INSTANTANEOUS PEAK STAGE 41.17     Jun 17 44.4   A Apr 29 1996
INSTANTANEOUS LOW FLOW 4.7       Nov 8
ANNUAL RUNOFF (CFSM) .85 .58 .88    
ANNUAL RUNOFF (INCHES) 11.53 7.90 11.94    
10 PERCENT EXCEEDS 210      89      191         
50 PERCENT EXCEEDS 30      15      27         
90 PERCENT EXCEEDS 9.0   9.5   9.0      
A - From floodmark.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data