Station list     Available data
CACHE RIVER BASIN


03612000       CACHE RIVER AT FORMAN, IL



LOCATION.-- Lat 37°20'11", long 88°55'26", in NE1/4NW1/4 sec.6, T.14 S., R.3 E., Johnson County, Hydrologic Unit 05140206, at downstream side of bridge on County Highway 3, 1.2 mi southwest of Forman, and at mile 8.1.

DRAINAGE AREA.-- 244 mi2.

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

DISCHARGE: October 1922 to July 1924, September 1924 to current year.
 

STAGE: Water years 1994-2001.
SURFACE-WATER QUALITY
 

CHEMICAL: Water years 1978-91.

REVISED RECORDS.-- WSP 623: 1923-24. WSP 823: 1934-35. WSP 1205: 1923-24, 1927-30. WSP 1335: 1923(M), 1925, 1926-27(M), 1928, 1929-30(M), 1931, 1933, 1934-36(M), 1937-39. WDR IL-75-1: Drainage area.

GAGE.-- Water-stage recorder, phone telemeter, rain gage, and crest-stage gage. Datum of gage is 308.47 ft. above sea level. Dec. 30, 1971 to Sept. 30, 1997, recording gage at same site at datum 10.0 ft. higher. Oct. 1, 1958, to Dec. 30, 1971, nonrecording gage at same site and datum 10.0 ft. higher. See WSP 1705 or 1725 for history of changes prior to Sept. 30, 1958.

REMARKS.-- Flow of lower part of Cache River Basin was diverted from Ohio River to Mississippi River beginning Oct. 31, 1950, through diversion channel of Mounds-Mound City flood-protection project. Flow of upper part of Cache River Basin, including flow past this station, continued to discharge to Ohio River, passing through Post Creek cutoff directly to Ohio River instead of through the original channel of Cache River.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 9,630 ft3/s, March 12, 1935, gage height, 42.29 ft, site then in use, from graph based on gage readings; minimum discharge, no flow at times in some years.

REMARKS FOR CURRENT YEAR.-- Records good except those for periods of backwater from the Ohio River, Feb. 17 to Mar. 3, and those for estimated daily discharges, which are poor.
DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 2000 TO SEPTEMBER 2001
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
 
1 6.0   1.0   28  e26  307  e259  104  27    22    4.1 52    7.2
2 4.2   1.0   22  e26  186  e186  107  25    20    3.4 30    9.8
3 3.1   .89 19  e25  124  e149  839  23    20    3.0 21    24   
4 2.4   .68 16  e24  94  373  822  22    23    3.9 15    16   
5 2.4   .58 13  e24  82  540  635  21    19    5.7 11    10   
 
6 2.9   1.2   13  e23  75  455  496  20    18    4.5 9.1 6.8
7 2.2   1.6   13  e26  68  298  323  20    17    5.0 7.0 6.3
8 1.5   16      11  e34  63  211  233  20    14    7.2 6.0 18   
9 1.3   338      12  e50  68  164  181  18    13    5.5 5.9 13   
10 1.2   325      12  75  238  132  148  17    12    3.9 8.7 16   
 
11 1.1   221      24  54  380  110  130  16    13    3.2 43    13   
12 1.1   96      326  44  251  104  114  16    11    2.6 38    15   
13 1.2   49      386  47  162  461  100  15    8.4 2.2 25    15   
14 1.2   32      247  61  147  346  84  13    6.8 1.9 16    11   
15 1.3   25      148  180  598  254  81  11    5.1 1.8 11    7.4
 
16 1.3   22      537  310  1020  389  77  9.0 4.2 1.6 7.8 5.3
17 1.4   20      739  209  e845  400  71  8.9 3.7 1.5 4.6 4.0
18 1.2   37      508  133  e556  301  62  8.5 4.0 1.9 5.5 3.3
19 1.0   25      e370  111  e447  207  55  12    7.3 2.6 102    6.5
20 1.1   16      e260  104  e281  159  50  55    7.5 2.1 209    26   
 
21 1.1   10      e200  e90  e165  132  48  63    129    18    90    29   
22 1.2   8.5   e160  e80  e221  115  48  59    67    27    38    17   
23 1.1   8.1   e110  e60  e269  102  46  62    26    22    21    11   
24 .87 8.1   e90  e52  e256  91  56  43    27    24    14    7.7
25 .96 25      e70  e50  e735  80  46  31    17    19    20    4.8
 
26 .99 242      e50  e48  e526  71  43  25    12    379    77    2.9
27 .94 238      e42  46  e460  64  40  24    9.3 304    42    2.2
28 1.1   119      e37  42  e393  59  35  20    6.6 134    19    1.6
29 1.2   62      e34  42  ---  56  31  18    5.0 237    10    1.4
30 1.3   39      e30  259  ---  60  29  16    4.5 203    4.3 1.3
 
31 1.1   ---      e28  443  ---  83  ---  15    ---    116    6.9 ---   

TOTAL 50.96 1988.65 4555 2798 9017 6411 5134 753.4 552.4 1550.6 969.8 312.5
MEAN 1.64 66.3 147 90.3 322 207 171 24.3 18.4 50.0 31.3 10.4
MAX 6.0 338 739 443 1020 540 839 63 129 379 209 29
MIN .87 .58 11 23 63 56 29 8.5 3.7 1.5 4.3 1.3
CFSM .01 .27 .60 .37 1.32 .85 .70 .10 .08 .20 .13 .04
IN. .01 .30 .69 .43 1.37 .98 .78 .11 .08 .24 .15 .05
e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1923 - 2001, BY WATER YEAR (WY)
MEAN 52.8 189 318 493 489 593 563 410 215 88.1 72.6 55.8
MAX 487 1097 2192 3039 1813 2268 2244 1847 1759 1257 826 542
(WY) 1928 1958 1983 1950 1950 1945 1927 1983 1928 1958 1985 1950
MIN .019 .66 .58 1.38 7.05 12.4 40.7 10.4 1.37 1.71 .000 .43
(WY) 1964 1954 1964 1977 1934 1941 1981 1930 1936 1931 1930 1953

SUMMARY STATISTICS FOR 2000 CALENDAR YEAR FOR 2001 WATER YEAR WATER YEARS 1923 - 2001
ANNUAL TOTAL 70941.41 34093.31    
ANNUAL MEAN 194      93.4       293         
HIGHEST ANNUAL MEAN 779          1950
LOWEST ANNUAL MEAN 37.5       1941
HIGHEST DAILY MEAN 2700          Jan 4 1020              Feb 16 8780          Jan 26 1929
LOWEST DAILY MEAN .58     Nov 5 .58         Nov 5 .00     A
ANNUAL SEVEN-DAY MINIMUM .92     Oct 31 .92         Oct 31 .00     Jul 29 1930
MAXIMUM PEAK FLOW 1270      B     Feb 16 9630          Mar 12 1935
MAXIMUM PEAK STAGE 18.94 C     Feb 25 42.29 D Mar 12 1935
INSTANTANEOUS LOW FLOW .51         Nov 5
ANNUAL RUNOFF (CFSM) .79 .38     1.20    
ANNUAL RUNOFF (INCHES) 10.82 5.20     16.30    
10 PERCENT EXCEEDS 716      299          842         
50 PERCENT EXCEEDS 31      25          54         
90 PERCENT EXCEEDS 2.4   1.7       1.8      

A - At times in some years.
B - Gage height, 18.85 ft.
C - Discharge, 903 ft3/s, variable backwater.
D - Site then in use, from graph based on gage readings.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data