Station list     Available data
APPLE RIVER BASIN


05419000       APPLE RIVER NEAR HANOVER, IL



LOCATION.-- Lat 42°15'10", long 90°17'09", in NE1/4NW1/4 sec.16, T.26 N., R.2 E., Jo Daviess County, Hydrologic Unit 07060005, on right bank, 0.3 mi southwest of Hanover, and at mile 13.9.

DRAINAGE AREA.-- 247 mi2.

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

DISCHARGE: October 1934 to current year. Monthly discharge only for some periods, published in WSP 1308.
 

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

SEDIMENT: October 1994 to September 1997.

REVISED RECORDS.-- WSP 1005: 1939, 1941(M). WSP 1308: 1935-38(M), 1943-45(M). WDR IL-75-1: Drainage area.

GAGE.-- Water-stage recorder and phone telemeter. Datum of gage is 591.00 ft above sea level. Prior to Oct. 1, 1945, nonrecording gage at site 3.5 mi downstream at datum 9.48 ft lower.

REMARKS.-- Occasional regulation during low flow by dam at Hanover. Suspended-sediment samples were collected by a local observer once a week with additional samples collected during storm runoff periods.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 12,000 ft3/s, Jan. 5, 1946, gage height 25.37 ft; maximum gage height, 26.12 ft, Jan. 5, 1946, ice jam; no flow for part of each day, May 23, 24, 1967, result of temporary closure of gate at dam at Hanover.
SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily, 3,790 mg/L, May 28, 1996; minimum daily, 5 mg/L, Aug. 5, 1997.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 28,900 tons, May 28, 1996; minimum daily, 0.8 tons, Aug. 5, 1997

REMARKS FOR CURRENT YEAR.-- Records good except 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 75  54  55  e43  192  279  272  e230  248  146  71  59 
2 71  61  54  e44  e160  283  254  e220  423  138  164  59 
3 74  53  50  e44  e140  383  243  e210  300  142  176  58 
4 94  52  51  e43  e124  463  232  e230  254  140  110  57 
5 81  50  43  e44  e115  349  244  e230  497  128  93  55 
 
6 73  61  45  e46  e114  283  308  e280  623  118  85  56 
7 67  89  50  e45  e115  281  283  e450  423  117  80  84 
8 64  80  53  e44  119  277  256  e420  349  116  76  160 
9 62  70  62  e43  1780  263  777  e370  302  112  74  113 
10 63  67  53  e47  1630  319  646  e355  278  105  71  111 
 
11 64  62  e50  e51  1040  537  616  e350  259  99  68  86 
12 62  59  e49  e47  808  839  671  e310  257  94  68  72 
13 62  60  e48  e44  575  969  486  e280  258  92  66  66 
14 63  58  e48  e40  451  808  443  e270  272  89  61  61 
15 63  58  e47  e41  316  873  e400  e260  461  87  65  58 
 
16 59  58  e46  e40  252  899  e370  e260  307  85  86  57 
17 58  58  e46  e39  e230  559  e330  e245  254  84  80  61 
18 61  54  e46  e38  e215  535  e300  e240  386  133  76  63 
19 56  54  e46  e38  e200  562  e275  e240  311  101  74  749 
20 57  54  e45  e37  e190  545  e270  232  257  89  71  488 
 
21 55  47  e45  e37  e175  516  e340  346  246  161  65  1070 
22 55  47  e45  e37  160  495  e310  365  234  128  64  360 
23 59  51  e44  e37  203  462  e270  274  215  96  64  695 
24 61  51  e44  e37  295  390  e260  264  202  91  63  944 
25 61  51  e44  e37  1640  329  e240  251  191  103  104  375 
 
26 59  52  e44  e37  1120  296  e255  238  180  95  120  285 
27 60  54  e44  e40  514  285  e240  236  169  83  85  242 
28 57  53  e44  e73  292  274  e230  217  162  79  71  213 
29 55  56  e43  e70  ---  276  e220  205  157  81  67  190 
30 53  54  e43  243  ---  268  e215  194  151  78  64  173 
 
31 53  ---  e43  240  ---  266  ---  193  ---  74  62  --- 

TOTAL 1957 1728 1470 1746 13165 14163 10256 8465 8626 3284 2544 7120
MEAN 63.1 57.6 47.4 56.3 470 457 342 273 288 106 82.1 237
MAX 94 89 62 243 1780 969 777 450 623 161 176 1070
MIN 53 47 43 37 114 263 215 193 151 74 61 55
CFSM .26 .23 .19 .23 1.90 1.85 1.38 1.11 1.16 .43 .33 .96
IN. .29 .26 .22 .26 1.98 2.13 1.54 1.27 1.30 .49 .38 1.07
e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1935 - 2001, BY WATER YEAR (WY)
MEAN 111 127 111 145 247 339 260 237 229 141 98.9 126
MAX 807 672 565 779 837 945 1104 1172 1077 974 459 968
(WY) 1987 1962 1983 1960 1971 1959 1973 1973 1993 1993 1981 1965
MIN 19.7 24.4 21.4 15.2 19.4 34.2 40.2 30.9 29.9 23.1 18.6 21.0
(WY) 1941 1941 1990 1940 1940 1954 1940 1940 1989 1989 1941 1940

SUMMARY STATISTICS FOR 2000 CALENDAR YEAR FOR 2001 WATER YEAR WATER YEARS 1935 - 2001
ANNUAL TOTAL 51532          74524         
ANNUAL MEAN 141          204          180         
HIGHEST ANNUAL MEAN 480          1993
LOWEST ANNUAL MEAN 39.3       1940
HIGHEST DAILY MEAN 1990              Jun 13 1780              Feb 9 9010          Feb 21 1937
LOWEST DAILY MEAN 37      A     Jan 29 37              B, C 3.5       May 24 1967
ANNUAL SEVEN-DAY MINIMUM 41              Jan 27 37              B 10          Dec 28 1939
MAXIMUM PEAK FLOW 2540              Feb 9 12000          Jan 5 1946
MAXIMUM PEAK STAGE 11.83         Feb 9 26.12 D Jan 5 1946
INSTANTANEOUS LOW FLOW 29      E     Dec 5 .00     F
ANNUAL RUNOFF (CFSM) .57     .83     .73    
ANNUAL RUNOFF (INCHES) 7.76     11.22     9.93    
10 PERCENT EXCEEDS 279          450          335         
50 PERCENT EXCEEDS 67          110          87         
90 PERCENT EXCEEDS 48          45          32         

A - Estimated due to backwater from ice, but may have been less during periods of estimated discharges in Jan. and Feb.
B - Estimated due to backwater from ice.
C - Several days.
D - Ice jam.
E - Result of freezeup.
F - Part of each day, May 23, 24, 1967, result of temporary closure of gate at dam in Hanover.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data