Station list     Available data
APPLE RIVER BASIN


05419000       APPLE RIVER NEAR HANOVER, IL



LOCATION.-- Lat 42°15'09", 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 1994-2000.
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; 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 fair except those for estimated daily discharges, which are poor.
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 60  54  54  48  e43  194  57  121  1970  207  95  56 
2 60  53  57  54  e44  160  58  116  828  507  97  54 
3 63  54  61  59  e45  140  57  104  476  1020  89  56 
4 68  53  62  59  e47  131  55  100  358  449  81  55 
5 63  54  64  e58  e48  122  53  98  342  355  86  51 
 
6 60  53  61  57  e49  113  53  94  302  306  94  47 
7 57  52  60  52  e50  103  60  93  260  264  95  47 
8 57  52  55  52  e51  98  68  98  239  240  85  56 
9 57  54  57  58  e53  96  66  129  217  250  78  51 
10 57  56  58  69  e54  87  67  146  200  470  71  50 
 
11 54  52  56  72  e53  81  68  133  e300  369  66  88 
12 52  49  55  67  e53  78  64  170  713  272  64  174 
13 56  50  55  59  53  78  60  137  1990  239  65  e110 
14 53  50  54  47  50  77  59  119  1860  218  64  75 
15 54  49  55  60  49  78  60  110  1150  201  63  66 
 
16 80  48  55  57  52  76  60  110  714  184  59  57 
17 77  48  52  48  e49  70  67  168  499  172  165  54 
18 63  50  40  54  e50  68  67  272  389  157  159  51 
19 58  51  52  52  e49  75  132  412  336  151  94  51 
20 56  51  46  e56  e48  83  544  260  340  143  81  59 
 
21 55  49  38  e64  e47  80  426  215  321  134  74  62 
22 55  50  44  e62  70  74  280  193  267  129  69  110 
23 53  66  e43  e58  128  70  237  172  247  120  68  858 
24 52  72  e42  e54  453  70  213  150  279  113  67  248 
25 52  66  e42  e51  345  72  186  131  343  108  63  163 
 
26 52  61  e43  e47  783  67  163  126  392  106  61  125 
27 63  62  e44  e44  435  67  148  225  279  102  62  105 
28 57  59  e46  e40  259  66  139  204  252  97  60  91 
29 55  55  50  e37  214  64  134  175  246  92  59  82 
30 56  52  52  e39  ---  60  123  165  221  93  57  77 
 
31 55  ---  49  e41  ---  58  ---  276  ---  100  58  --- 

TOTAL 1810 1625 1602 1675 3724 2756 3824 5022 16330 7368 2449 3229
MEAN 58.4 54.2 51.7 54.0 128 88.9 127 162 544 238 79.0 108
MAX 80 72 64 72 783 194 544 412 1990 1020 165 858
MIN 52 48 38 37 43 58 53 93 200 92 57 47
CFSM .24 .22 .21 .22 .52 .36 .52 .66 2.20 .96 .32 .44
IN. .27 .24 .24 .25 .56 .42 .58 .76 2.46 1.11 .37 .49

e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1935 - 2000, BY WATER YEAR (WY)
MEAN 112 128 112 147 244 337 259 236 228 141 99.1 124
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 1999 CALENDAR YEAR FOR 2000 WATER YEAR WATER YEARS 1935 - 2000
ANNUAL TOTAL 79102      51414         
ANNUAL MEAN 217      140          180         
HIGHEST ANNUAL MEAN 480          1993
LOWEST ANNUAL MEAN 39.3       1940
HIGHEST DAILY MEAN 3730          May 17 1990              Jun 13 9010          Feb 21 1937
LOWEST DAILY MEAN 38          Dec 21 37      A     Jan 29 3.5       May 24 1967
ANNUAL SEVEN-DAY MINIMUM 42          Dec 21 41              Jan 27 10          Dec 28 1939
INSTANTANEOUS PEAK FLOW 3060              Jun 1 12000          Jan 5 1946
INSTANTANEOUS PEAK STAGE 13.55         Jun 1 26.12 B Jan 5 1946
INSTANTANEOUS LOW FLOW 27      C     Dec 18 .00     D
ANNUAL RUNOFF (CFSM) .88 .57     .73    
ANNUAL RUNOFF (INCHES) 11.91 7.74     9.91    
10 PERCENT EXCEEDS 435      279          332         
50 PERCENT EXCEEDS 130      66          87         
90 PERCENT EXCEEDS 52      49          32         
A - Estimated due to backwater from ice.
B - Ice jam.
 C - Result of freezeup.
 D - May 23, 24, 1967, result of temporary closure of gate at dam at Hanover.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data