Station list     Available data
ILLINOIS RIVER BASIN


05548280       NIPPERSINK CREEK NEAR SPRING GROVE, IL



LOCATION.-- Lat 42°26'37", long 88°14'51", in NE1/4NW1/4 sec.25, T.46 N., R.8 E., McHenry County, Hydrologic Unit 07120006, on right bank at upstream side of bridge on Winn Road, 0.6 mi west of Spring Grove, and at mile 7.4.

DRAINAGE AREA.-- 192 mi2.

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

DISCHARGE: August 1966 to current year.
 

STAGE: Water years 1994-2000.
SURFACE-WATER QUALITY
 

CHEMICAL: Water years 1976-91.
 

SEDIMENT: Dec. 1997 to May 1999.
PRECIPITATION: October 1999 to current year.

REVISED RECORDS.-- WSP 2115: 1969-70(M). WDR IL-75-1: Drainage area. WDR IL-85-2: 1966-67(M), 1971.

GAGE.-- Water stage recorder, phone telemeter, rain gage, and crest-stage gage. Datum of gage is 746.00 ft above sea level.

REMARKS.-- Suspended-sediment samples were collected twice weekly with more frequent samples collected during high runoff periods. Collection, computation, and publication of precipitation data do not necessarily conform to standards used by the National Weather Service. Precipitation data could be subject to error for days with freezing and/or thawing of precipitation.

EXTREMES FOR PERIOD OF RECORD.--
SUSPENDED-SEDIMENT CONCENTRATION: Maximum daily, 244 mg/L, May 17, 1999; minimum daily, 8 mg/L, Nov. 24, 1998.
SUSPENDED-SEDIMENT LOAD: Maximum daily, 247 tons, May 17, 1999; minimum daily, 1.9 tons, Nov. 24, 1998.
PRECIPITATION: Maximum, 2.82 in., June 12, 2000.

EXTREMES OUTSIDE PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Flood in April 1960 reached a stage of 13.7 ft, from information by local resident, and flood in July 1938 reached a stage of about 4 to 6 ft higher than that in April 1960.

REMARKS FOR CURRENT YEAR.-- Records good 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
 
1 172  67  73  76  e65  176  76  130  490  207  201  88 
2 131  61  67  81  e64  160  78  125  838  206  170  85 
3 117  60  70  89  e64  145  77  122  1100  485  138  86 
4 133  63  66  94  e65  135  69  113  787  462  124  75 
5 149  65  133  86  e66  125  73  103  560  403  130  72 
 
6 125  57  159  83  e68  120  70  99  479  326  175  65 
7 112  58  142  78  e68  118  67  94  384  267  159  66 
8 109  61  123  79  e66  106  86  98  306  240  157  65 
9 94  67  113  82  e69  103  99  122  261  231  134  66 
10 91  63  110  99  e71  88  99  287  230  491  122  67 
 
11 88  55  111  114  76  87  99  336  222  731  115  72 
12 92  60  106  107  75  88  97  395  635  656  110  192 
13 84  61  98  101  77  88  94  336  1850  438  114  174 
14 80  59  92  89  81  87  90  249  2650  318  106  154 
15 81  59  96  93  78  87  85  203  1990  274  104  151 
 
16 81  59  101  86  78  86  75  182  1340  244  89  126 
17 78  61  91  80  75  86  79  172  831  209  123  108 
18 78  64  e88  e75  82  84  82  351  594  193  141  190 
19 81  69  e85  e72  94  84  116  869  468  184  122  151 
20 75  57  e83  e69  84  106  384  1160  407  178  111  180 
 
21 76  57  e80  e68  81  114  615  868  377  169  105  247 
22 68  60  e77  e68  108  109  586  586  329  150  103  227 
23 62  70  e74  e67  233  102  425  465  299  142  103  487 
24 65  81  e72  e66  367  101  312  360  299  136  100  417 
25 71  73  e72  e64  435  104  245  277  334  134  98  322 
 
26 65  73  e73  e63  374  97  203  238  312  131  90  226 
27 70  71  e74  e63  308  96  173  258  282  121  90  198 
28 76  68  e74  e64  240  90  155  288  247  114  89  170 
29 69  66  e74  e65  207  88  142  310  242  112  88  161 
30 76  66  e76  e66  ---  84  134  286  225  104  89  144 
 
31 65  ---  76  e66  ---  82  ---  291  ---  172  88  --- 

TOTAL 2814 1911 2829 2453 3819 3226 4985 9773 19368 8228 3688 4832
MEAN 90.8 63.7 91.3 79.1 132 104 166 315 646 265 119 161
MAX 172 81 159 114 435 176 615 1160 2650 731 201 487
MIN 62 55 66 63 64 82 67 94 222 104 88 65
CFSM .47 .33 .48 .41 .69 .54 .87 1.64 3.36 1.38 .62 .84
IN. .55 .37 .55 .48 .74 .63 .97 1.89 3.75 1.59 .71 .94

e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1966 - 2000, BY WATER YEAR (WY)
MEAN 102 123 143 122 165 248 260 187 184 118 89.3 113
MAX 473 372 493 316 455 554 652 542 646 522 258 579
(WY) 1987 1986 1983 1974 1971 1979 1993 1974 2000 1993 1972 1972
MIN 30.7 36.3 29.9 28.7 35.8 62.2 83.8 55.0 34.6 26.0 25.3 21.1
(WY) 1989 1972 1990 1977 1978 1968 1989 1989 1988 1988 1988 1988

SUMMARY STATISTICS FOR 1999 CALENDAR YEAR FOR 2000 WATER YEAR WATER YEARS 1966 - 2000
ANNUAL TOTAL 67431      67926     
ANNUAL MEAN 185      186      155     
HIGHEST ANNUAL MEAN 288      1974
LOWEST ANNUAL MEAN 52.4   1977
HIGHEST DAILY MEAN 2660          Jun 15 2650          Jun 14 2660      Jun 15 1999
LOWEST DAILY MEAN 45          Sep 25 55          Nov 11 10      Aug 6 1988
ANNUAL SEVEN-DAY MINIMUM 49          Sep 19 59          Nov 11 14      Aug 2 1988
INSTANTANEOUS PEAK FLOW 2860          Jun 14 2910      Sep 26 1986
INSTANTANEOUS PEAK STAGE 13.71     Jun 14 14.26 Sep 26 1986
INSTANTANEOUS LOW FLOW 53          Nov 11,14,20,21 6.6   Aug 7 1988
ANNUAL RUNOFF (CFSM) .96 .97 .80
ANNUAL RUNOFF (INCHES) 13.06 13.16 10.94
10 PERCENT EXCEEDS 352      379      313     
50 PERCENT EXCEEDS 119      101      100     
90 PERCENT EXCEEDS 61      66      42     


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data