Station list
Available data
ILLINOIS RIVER BASIN
05533400 SAWMILL CREEK NEAR LEMONT, IL
LOCATION.--Lat 41°42'28", long 87°57'45", in NE1/4SW1/4 sec.10, T.37 N., R.11 E., Du Page County, Hydrologic Unit 07120004,
on concrete abutment on right bank, 50 ft upstream from bridge on Bluff Road at south edge of Argonne National Laboratory,
2.5 mi northeast of Lemont, and at mile 1.
DRAINAGE AREA.--13.0 mi2
PERIOD OF RECORD.--Annual maximum, water years 1961-79. December 1985 to current year
REVISED RECORDS.--WDR IL-77-1: 1961-76(M).
GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 630.00 ft above sea level. Oct. 11, 1961, to Sept. 30, 1976,
crest-stage gage on bridge 50 ft downstream at datum 11.22 ft higher.
REMARKS.--Records fair except those for estimated daily discharges, which are poor. Gage-height telemeter and recording rain
gage at station.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 3,070 ft3/s, July 18, 1996, gage height 17.53 ft.
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 | 5.3 | 4.6 | 5.0 | e1.9 | 17 | 6.2 | 3.5 | 19 | 37 | 20 | .67 | 2.6
|
| 2 | 11 | 3.9 | 3.8 | e1.8 | 43 | 6.5 | 3.2 | 13 | 104 | 5.9 | .34 | 1.5
|
| 3 | 15 | 3.4 | 3.4 | e2.1 | 28 | 6.8 | 3.0 | 9.8 | 30 | 3.9 | .21 | 1.4
|
| 4 | 5.4 | 3.3 | 3.2 | e2.6 | 19 | 5.2 | 5.9 | 8.4 | 14 | 3.7 | .13 | .44
|
| 5 | 8.7 | 3.2 | 2.9 | e2.4 | 11 | 5.5 | 3.4 | 8.0 | 10 | 3.3 | .11 | .16
|
|
|
| 6 | 10 | 2.9 | 43 | e2.3 | 12 | 11 | 3.9 | 15 | 8.4 | 2.5 | .10 | .16
|
| 7 | 6.1 | 2.5 | 48 | e2.2 | 8.7 | 9.3 | 3.2 | 11 | 8.7 | 2.0 | 2.0 | .19
|
| 8 | 3.8 | 2.8 | 17 | e2.1 | 6.7 | 7.6 | 14 | 8.1 | 5.6 | 1.7 | 2.3 | .18
|
| 9 | 2.8 | 2.9 | 9.6 | e2.0 | 6.5 | 7.4 | 226 | 6.7 | 7.3 | 1.2 | .34 | .11
|
| 10 | 2.3 | 95 | 6.7 | e2.0 | 6.0 | 9.1 | 57 | 6.0 | 5.5 | .87 | .38 | .10
|
|
|
| 11 | 1.8 | 28 | 5.6 | e1.9 | 10 | 9.3 | 56 | 19 | 14 | .36 | .19 | .09
|
| 12 | 1.5 | 13 | 4.9 | e1.9 | 9.4 | 10 | 25 | 138 | 13 | .28 | 4.6 | .36
|
| 13 | 1.3 | 9.3 | 4.6 | e1.8 | 5.5 | 9.8 | 14 | 45 | 56 | .17 | 4.3 | 3.8
|
| 14 | 1.2 | 7.1 | 4.1 | e1.8 | 4.7 | 9.2 | 11 | 20 | 25 | .20 | 3.3 | 1.0
|
| 15 | 1.0 | 5.5 | 3.8 | e1.9 | 4.8 | 13 | 74 | 13 | 9.2 | .22 | .78 | .26
|
|
|
| 16 | .95 | 4.9 | 3.6 | e2.1 | 4.9 | 29 | 176 | 10 | 7.2 | .20 | .22 | .13
|
| 17 | 106 | 4.2 | 3.4 | e7.0 | 5.1 | 39 | 71 | 81 | 6.0 | 23 | .14 | .74
|
| 18 | 162 | 3.7 | 3.2 | e26 | 4.2 | 22 | 40 | 34 | 4.8 | 8.6 | .13 | .30
|
| 19 | 43 | 3.6 | 3.0 | e16 | 3.9 | 12 | 26 | 15 | 4.2 | 10 | 15 | .15
|
| 20 | 19 | 3.3 | 2.9 | e9.4 | 4.0 | 7.9 | 21 | 9.8 | 2.9 | 5.0 | 3.8 | .72
|
|
|
| 21 | 11 | 3.1 | 2.9 | e12 | 3.4 | 7.0 | 20 | 75 | 2.6 | 8.4 | 2.2 | .38
|
| 22 | 7.0 | 3.0 | 2.5 | e140 | 3.4 | 5.8 | 98 | 196 | 3.4 | 9.7 | 1.4 | .28
|
| 23 | 5.2 | 2.8 | 2.4 | 225 | 3.2 | 5.5 | 175 | 73 | 3.8 | 3.7 | 1.9 | .19
|
| 24 | 4.3 | 2.7 | 2.2 | 90 | 2.9 | 4.8 | 56 | 43 | 16 | 3.3 | 15 | .14
|
| 25 | 4.1 | 2.8 | e2.1 | 48 | 3.7 | 4.5 | 30 | 24 | 4.2 | 2.1 | 38 | .11
|
|
|
| 26 | 3.2 | 2.7 | e2.0 | 31 | 4.8 | 4.2 | 18 | 14 | 3.2 | 1.1 | 9.0 | .12
|
| 27 | 11 | 2.5 | e1.9 | 44 | 13 | 3.9 | 151 | 10 | 2.8 | 1.2 | 4.6 | 6.3
|
| 28 | 8.8 | 2.9 | e1.8 | 39 | 8.3 | 3.8 | 134 | 8.4 | 3.8 | .80 | 2.9 | 78
|
| 29 | 8.9 | 3.0 | e1.7 | 24 | --- | 3.6 | 54 | 6.9 | 4.7 | .34 | 2.0 | 40
|
| 30 | 11 | 8.6 | e2.2 | 17 | --- | 3.5 | 29 | 6.3 | 2.4 | .75 | .84 | 6.9
|
|
|
| 31 | 5.6 | --- | e2.1 | 14 | --- | 3.8 | --- | 12 | --- | .70 | .40 | ---
|
| TOTAL | 488.25 | 241.2 | 205.5 | 775.2 | 257.1 | 286.2 | 1602.1 | 958.4 | 419.7 | 125.19 | 117.28 | 146.81
|
| MEAN | 15.8 | 8.04 | 6.63 | 25.0 | 9.18 | 9.23 | 53.4 | 30.9 | 14.0 | 4.04 | 3.78 | 4.89
|
| MAX | 162 | 95 | 48 | 225 | 43 | 39 | 226 | 196 | 104 | 23 | 38 | 78
|
| MIN | .95 | 2.5 | 1.7 | 1.8 | 2.9 | 3.5 | 3.0 | 6.0 | 2.4 | .17 | .10 | .09
|
| CFSM | 1.21 | .62 | .51 | 1.92 | .71 | .71 | 4.11 | 2.38 | 1.08 | .31 | .29 | .38
|
| IN. | 1.40 | .69 | .59 | 2.22 | .74 | .82 | 4.58 | 2.74 | 1.20 | .36 | .34 | .42
|
e Estimated
| STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1986 - 1999, BY WATER YEAR (WY)
|
|---|
| MEAN | 6.54 | 13.3 | 9.88 | 12.6 | 13.5 | 15.5 | 17.6 | 15.2 | 12.4 | 10.7 | 8.85 | 6.85
|
| MAX | 17.8 | 37.4 | 28.7 | 30.6 | 54.5 | 27.7 | 53.4 | 49.3 | 57.6 | 58.6 | 28.2 | 20.6
|
| (WY) | 1992 | 1991 | 1988 | 1993 | 1997 | 1990 | 1999 | 1990 | 1993 | 1996 | 1998 | 1989
|
| MIN | 1.11 | 2.94 | 1.03 | 2.78 | 2.08 | 3.83 | 5.30 | 1.25 | 1.02 | .14 | .50 | .095
|
| (WY) | 1993 | 1998 | 1996 | 1987 | 1993 | 1996 | 1989 | 1992 | 1992 | 1991 | 1991 | 1995
|
| SUMMARY STATISTICS | FOR 1998 CALENDAR YEAR | FOR 1999 WATER YEAR | WATER YEARS 1986 - 1999 |
|---|
| ANNUAL TOTAL | 6023.84 | | 5622.93 | | |
|
| ANNUAL MEAN | 16.5 | | 15.4 | | 11.7 |
|
| HIGHEST ANNUAL MEAN | | | | | 17.9 | 1993
|
| LOWEST ANNUAL MEAN | | | | | 7.58 | 1994
|
| HIGHEST DAILY MEAN | 481 | Aug 4 | 226 | Apr 9 | 1220 | Jul 18 1996
|
| LOWEST DAILY MEAN | .08 | Jul 31 | .09 | Sep 11 | .00 | A
|
| ANNUAL SEVEN-DAY MINIMUM | .39 | Jul 28 | .14 | Sep 5 | .00 | Jul 24 1991
|
| INSTANTANEOUS PEAK FLOW | | | 576 | Apr 9 | 3070 | Jul 18 1996
|
| INSTANTANEOUS PEAK STAGE | | | 12.61 | Apr 9 | 17.53 | Jul 18 1996
|
| INSTANTANEOUS LOW FLOW | | | .09 | Sep 9 - 12, 26 | |
|
| ANNUAL RUNOFF (CFSM) | 1.27 | | 1.19 | | .90 |
|
| ANNUAL RUNOFF (INCHES) | 17.24 | | 16.09 | | 12.23 |
|
| 10 PERCENT EXCEEDS | 39 | | 39 | | 25 |
|
| 50 PERCENT EXCEEDS | 5.8 | | 4.8 | | 4.1 |
|
| 90 PERCENT EXCEEDS | 2.0 | | .39 | | .41 |
|
A - At times in most years.