Station list
Available data
ILLINOIS RIVER BASIN
05540275 SPRING BROOK AT 87TH STREET NEAR NAPERVILLE, IL
LOCATION.--Lat 41°43'33", long 88°09'46", in SW1/4SW1/4 sec.36, T.38 N., R.9 E., Du Page County, Hydrologic Unit
07120004, on right bank at upstream side of bridge on 87th Street, 3.0 mi south of Naperville, and at mile 2.9.
DRAINAGE AREA.--9.90 mi2.
PERIOD OF RECORD.--October 1987 to current year.
GAGE.--Water-stage recorder. Datum of gage is 647.00 ft above sea level.
REMARKS.--Records good except those for February 26-27 and March 17-25, which are fair; and those for estimated daily discharges, which are poor. Gage-height telemeter at station.
DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999
DAILY MEAN VALUES
|
|---|
| DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP
|
|---|
|
|
| 1 | 5.0 | 8.2 | e9.0 | e2.6 | 28 | e15 | 5.0 | 27 | 8.5 | 7.8 | 2.3 | 2.5
|
| 2 | 4.8 | 7.0 | e7.0 | e2.9 | 30 | e13 | 4.9 | 19 | 54 | 7.7 | 1.8 | 1.9
|
| 3 | 8.9 | 5.7 | e6.2 | e2.8 | 27 | e17 | 4.6 | 16 | 37 | 6.5 | 1.6 | 1.4
|
| 4 | 10 | 5.3 | e5.8 | e2.7 | 21 | e15 | 4.5 | 15 | 25 | 5.6 | 1.5 | 1.0
|
| 5 | 17 | 5.7 | e5.6 | e2.7 | 17 | e14 | 4.3 | 14 | 16 | 4.4 | 1.2 | .83
|
|
|
| 6 | 18 | 5.5 | 15 | e2.8 | 15 | e12 | 4.1 | 16 | 11 | 3.3 | 1.2 | .72
|
| 7 | 16 | 5.8 | 42 | e2.8 | 12 | e16 | 3.7 | 16 | 8.8 | 2.3 | 1.3 | .71
|
| 8 | 12 | 6.0 | 23 | e2.7 | 9.5 | e15 | 4.2 | 13 | 7.3 | 2.1 | 1.4 | .68
|
| 9 | 10 | 6.6 | 15 | e2.6 | 8.6 | e13 | 18 | 9.4 | 5.9 | 2.1 | 1.2 | .63
|
| 10 | 8.3 | 57 | 9.5 | e2.5 | 7.6 | e15 | 13 | 7.6 | 5.0 | 2.4 | 1.2 | .61
|
|
|
| 11 | 6.5 | 44 | 7.3 | e2.4 | 11 | e13 | 13 | 8.1 | 9.3 | 1.6 | 1.1 | .59
|
| 12 | 5.5 | 30 | 6.4 | e2.3 | 20 | e14 | 11 | 43 | 33 | 1.3 | 1.8 | .71
|
| 13 | 5.0 | 18 | 5.5 | e2.2 | 14 | e15 | 11 | 35 | 51 | 1.2 | 2.8 | .87
|
| 14 | 4.6 | 12 | 4.7 | e2.2 | 13 | e13 | 12 | 24 | 55 | 1.1 | 2.6 | .57
|
| 15 | 4.4 | e12 | e4.2 | e2.3 | 11 | e12 | 15 | 17 | 36 | .90 | 2.2 | .52
|
|
|
| 16 | 3.8 | e10 | e3.5 | e3.0 | 10 | e19 | 54 | 14 | 23 | .83 | 1.8 | .48
|
| 17 | 30 | e8.4 | e3.2 | e3.5 | 9.3 | 34 | 45 | 36 | 16 | 1.1 | 1.5 | .40
|
| 18 | 126 | e7.6 | e3.0 | e8.6 | 8.4 | 29 | 34 | 39 | 14 | 1.6 | 1.3 | .34
|
| 19 | 74 | e6.8 | e2.9 | e6.2 | 8.0 | 22 | 29 | 27 | 8.3 | 2.6 | 4.8 | .32
|
| 20 | 41 | e6.0 | e2.7 | 8.1 | 7.9 | 15 | 19 | 18 | 6.3 | 5.6 | 4.8 | .62
|
|
|
| 21 | 27 | e5.6 | e2.6 | 8.9 | 8.8 | 8.8 | 18 | 17 | 5.2 | 13 | 3.8 | .37
|
| 22 | 20 | e5.8 | e2.5 | 93 | 8.6 | 9.5 | 21 | 50 | 6.2 | 8.0 | 3.1 | .40
|
| 23 | 16 | e5.4 | e2.4 | 160 | 9.0 | 7.3 | 56 | 35 | 9.0 | 7.8 | 2.7 | .42
|
| 24 | 13 | e5.0 | e2.4 | 137 | 9.0 | 7.8 | 36 | 29 | 27 | 34 | 4.9 | .40
|
| 25 | 11 | e4.8 | e2.3 | 79 | 8.4 | 9.2 | 30 | 19 | 21 | 24 | 42 | .26
|
|
|
| 26 | 8.8 | e4.8 | e2.4 | 51 | 9.7 | 8.1 | 22 | 13 | 14 | 14 | 37 | .28
|
| 27 | 9.5 | e4.7 | e2.4 | 45 | 20 | 6.9 | 74 | 11 | 10 | 11 | 20 | 1.0
|
| 28 | 15 | e4.5 | e2.5 | 43 | e18 | 6.6 | 112 | 9.7 | 6.5 | 9.1 | 12 | 23
|
| 29 | 9.8 | e4.6 | e2.6 | 36 | --- | 6.2 | 60 | 8.3 | 4.8 | 4.4 | 9.9 | 26
|
| 30 | 13 | e10 | e2.7 | 33 | --- | 5.8 | 37 | 7.0 | 3.6 | 3.1 | 8.0 | 20
|
|
|
| 31 | 10 | --- | e2.5 | 30 | --- | 5.6 | --- | 6.2 | --- | 2.5 | 4.1 | ---
|
| TOTAL | 563.9 | 322.8 | 208.8 | 783.8 | 379.8 | 412.8 | 775.3 | 619.3 | 537.7 | 192.93 | 186.9 | 88.53
|
| MEAN | 18.2 | 10.8 | 6.74 | 25.3 | 13.6 | 13.3 | 25.8 | 20.0 | 17.9 | 6.22 | 6.03 | 2.95
|
| MAX | 126 | 57 | 42 | 160 | 30 | 34 | 112 | 50 | 55 | 34 | 42 | 26
|
| MIN | 3.8 | 4.5 | 2.3 | 2.2 | 7.6 | 5.6 | 3.7 | 6.2 | 3.6 | .83 | 1.1 | .26
|
| CFSM | 1.84 | 1.09 | .68 | 2.55 | 1.37 | 1.35 | 2.61 | 2.02 | 1.81 | .63 | .61 | .30
|
| IN. | 2.12 | 1.21 | .78 | 2.95 | 1.43 | 1.55 | 2.91 | 2.33 | 2.02 | .72 | .70 | .33
|
e Estimated
| STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1988 - 1999, BY WATER YEAR (WY)
|
|---|
| MEAN | 4.85 | 11.0 | 9.08 | 12.6 | 12.1 | 13.9 | 16.8 | 15.0 | 12.0 | 11.9 | 6.34 | 4.91
|
| MAX | 18.2 | 20.1 | 22.6 | 30.7 | 44.3 | 26.1 | 34.0 | 46.3 | 31.3 | 78.1 | 27.6 | 13.6
|
| (WY) | 1999 | 1993 | 1988 | 1993 | 1997 | 1990 | 1993 | 1990 | 1993 | 1996 | 1998 | 1989
|
| MIN | .70 | 1.25 | .69 | 4.40 | 3.22 | 4.07 | 4.03 | 1.57 | .78 | .39 | .22 | .36
|
| (WY) | 1993 | 1990 | 1990 | 1994 | 1996 | 1996 | 1989 | 1989 | 1988 | 1988 | 1991 | 1988
|
| SUMMARY STATISTICS | FOR 1998 CALENDAR YEAR | FOR 1999 WATER YEAR | WATER YEARS 1988 - 1999 |
|---|
| ANNUAL TOTAL | 5737.2 | | 5072.56 | | |
|
| ANNUAL MEAN | 15.7 | | 13.9 | | 10.9 |
|
| HIGHEST ANNUAL MEAN | | | | | 15.7 | 1993
|
| LOWEST ANNUAL MEAN | | | | | 6.40 | 1994
|
| HIGHEST DAILY MEAN | 230 | Aug 4,5 | 160 | Jan 23 | 1370 | Jul 18 1996
|
| LOWEST DAILY MEAN | 1.4 | Sep 24,25,27 | .26 | Sep 25 | .00 | Oct 11 1988
|
| ANNUAL SEVEN-DAY MINIMUM | 1.5 | Sep 22 | .39 | Sep 20 | .05 | Oct 9 1988
|
| INSTANTANEOUS PEAK FLOW | | | 218 | Jan 23 | 1750 | Jul 18 1996
|
| INSTANTANEOUS PEAK STAGE | | | 6.28 | Jan 23 | 10.77 | Jul 18 1996
|
| INSTANTANEOUS LOW FLOW | | | .21 | Sep 25 | |
|
| ANNUAL RUNOFF (CFSM) | 1.59 | | 1.40 | | 1.10 |
|
| ANNUAL RUNOFF (INCHES) | 21.56 | | 19.06 | | 14.91 |
|
| 10 PERCENT EXCEEDS | 34 | | 34 | | 27 |
|
| 50 PERCENT EXCEEDS | 8.5 | | 8.2 | | 5.3 |
|
| 90 PERCENT EXCEEDS | 2.5 | | 1.3 | | .74 |
|