LOCATION.-- Lat 42°21'00", long 88°05'18" (NAD of 1927), in SW1/4NE1/4 sec.29, T.45 N., R.10 E., Lake County, Hydrologic Unit 07120006, on left bank at upstream side of bridge on MacGillis Road at Round Lake, and at mile 7.5. | |
DRAINAGE AREA.-- 17.2 mi2. | |
PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE | |
DISCHARGE: October 1989 to current year. | |
STAGE: Water years 1994 to current year. | |
GAGE.-- Water-stage recorder, phone telemeter, and crest-stage gage. Datum of gage is 764.94 ft above NGVD of 1929. | |
EXTREMES FOR PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 312 ft3/s, July 18, 1993, from rating curve extended above 120 ft3/s on basis of slope-area measurement of peak flow, gage height, 6.42 ft; no flow at times in 1991, 1994 and 1998. | |
REMARKS FOR CURRENT YEAR.-- Records good except those for estimated daily discharges, which are poor. | |
| Discharge, cubic feet per second, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003
DAILY MEAN VALUES | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
| 1 | 3.3 | 1.1 | 0.83 | e1.0 | e0.55 | e0.37 | 3.3 | 33 | 19 | 1.9 | 2.6 | 0.27 |
| 2 | 6.8 | 1.3 | 0.87 | e1.1 | e0.56 | e0.36 | 3.1 | 41 | 14 | 2.6 | 2.2 | 0.22 |
| 3 | 4.9 | 1.4 | 0.76 | e1.1 | e0.56 | e0.36 | 3.0 | 29 | 10 | 3.0 | 2.1 | 0.20 |
| 4 | 5.3 | 1.0 | 0.71 | 1.1 | e0.57 | e0.36 | 10 | 23 | 8.5 | 2.7 | 2.1 | 0.17 |
| 5 | 5.7 | 0.76 | 0.70 | e1.1 | e0.56 | e0.37 | 25 | 71 | 7.0 | 4.9 | 1.9 | 0.16 |
| 6 | 4.8 | 0.86 | 0.67 | e1.1 | e0.55 | e0.39 | 23 | 61 | 6.4 | 11 | 1.9 | 0.12 |
| 7 | 4.0 | 0.70 | 0.75 | e1.1 | e0.53 | e0.40 | 18 | 50 | 6.2 | 22 | 1.8 | 0.15 |
| 8 | 3.5 | 0.66 | 0.72 | e1.0 | e0.50 | e0.42 | 14 | 45 | 7.3 | 26 | 1.8 | 0.14 |
| 9 | 3.3 | 0.58 | 0.67 | e1.0 | e0.49 | e0.43 | 13 | 77 | 7.3 | 26 | 1.8 | 0.11 |
| 10 | 3.1 | 0.67 | 0.75 | e0.98 | e0.43 | e0.45 | 17 | 69 | 6.6 | 19 | 1.7 | 0.18 |
| 11 | 3.0 | 0.69 | 0.73 | e0.92 | e0.40 | e0.50 | 13 | 57 | 5.4 | 15 | 1.6 | 0.15 |
| 12 | 1.6 | 0.69 | 0.69 | e0.85 | e0.38 | e0.62 | 10 | 50 | 5.0 | 11 | 1.6 | 0.67 |
| 13 | 1.1 | 0.70 | 0.85 | e0.79 | e0.36 | e0.82 | 8.9 | 39 | 4.6 | 8.4 | 1.6 | 0.50 |
| 14 | 0.86 | 0.56 | 0.76 | e0.72 | e0.35 | e1.5 | 7.5 | 34 | 4.0 | 6.8 | 1.8 | 0.76 |
| 15 | 0.71 | 0.58 | 0.72 | e0.69 | e0.35 | e2.9 | 6.5 | 30 | 3.3 | 34 | 1.7 | 0.34 |
| 16 | 0.62 | 0.70 | 0.71 | e0.67 | e0.35 | e3.1 | 5.8 | 25 | 3.0 | 30 | 1.6 | 0.23 |
| 17 | 0.54 | 0.71 | 0.70 | e0.64 | e0.35 | e3.2 | 5.1 | 20 | 2.5 | 24 | 1.5 | 0.22 |
| 18 | 0.52 | 0.82 | 2.6 | e0.62 | e0.35 | e3.2 | 4.8 | 16 | 9.2 | 34 | 1.5 | 0.18 |
| 19 | 0.54 | 0.84 | 3.0 | e0.59 | e0.36 | e2.9 | 4.5 | 13 | 25 | 20 | 1.3 | 0.29 |
| 20 | 0.51 | 0.75 | 2.7 | e0.56 | e0.37 | e3.2 | 4.6 | 24 | 16 | 12 | 1.3 | 0.29 |
| 21 | 0.49 | 1.9 | 2.1 | e0.51 | e0.39 | e3.9 | 4.3 | 25 | 11 | 12 | 1.3 | 0.27 |
| 22 | 0.48 | 1.2 | 1.8 | e0.48 | e0.43 | 3.8 | 4.0 | 16 | 8.3 | 9.0 | 1.3 | 0.94 |
| 23 | 0.45 | 0.81 | 1.5 | e0.47 | e0.47 | 3.0 | 3.9 | 11 | 6.7 | 7.1 | 1.4 | 0.48 |
| 24 | 0.67 | 1.0 | 1.3 | e0.46 | e0.49 | 2.7 | 3.4 | 9.0 | 5.6 | 5.7 | 1.1 | 0.33 |
| 25 | 1.3 | 1.2 | 1.3 | e0.45 | e0.49 | 3.3 | 3.3 | 7.6 | 4.6 | 4.8 | 1.3 | 0.29 |
| 26 | 1.1 | 1.1 | 1.2 | e0.45 | e0.48 | 3.3 | 2.9 | 6.6 | 4.0 | 4.0 | 1.3 | 0.86 |
| 27 | 1.1 | 1.1 | 1.1 | e0.45 | e0.44 | 3.2 | 2.8 | 5.5 | 3.3 | 3.5 | 0.29 | 0.57 |
| 28 | 0.90 | 1.0 | 1.1 | e0.48 | e0.38 | 3.9 | 2.6 | 6.8 | 2.6 | 3.2 | 0.15 | 0.43 |
| 29 | 0.98 | 1.1 | 1.0 | e0.50 | --- | 4.9 | 2.2 | 11 | 2.4 | 2.9 | 0.16 | 0.37 |
| 30 | 0.90 | 1.1 | e0.98 | e0.53 | --- | 4.2 | 3.2 | 11 | 2.1 | 2.7 | 0.12 | 0.32 |
| 31 | 0.80 | --- | e0.99 | e0.54 | --- | 3.6 | --- | 22 | --- | 2.7 | 0.18 | --- |
| TOTAL | 63.87 | 27.58 | 35.26 | 22.95 | 12.49 | 65.65 | 232.7 | 938.5 | 220.9 | 371.9 | 44.00 | 10.21 |
| MEAN | 2.06 | 0.92 | 1.14 | 0.74 | 0.45 | 2.12 | 7.76 | 30.3 | 7.36 | 12.0 | 1.42 | 0.34 |
| MAX | 6.8 | 1.9 | 3.0 | 1.1 | 0.57 | 4.9 | 25 | 77 | 25 | 34 | 2.6 | 0.94 |
| MIN | 0.45 | 0.56 | 0.67 | 0.45 | 0.35 | 0.36 | 2.2 | 5.5 | 2.1 | 1.9 | 0.12 | 0.11 |
| CFSM | 0.12 | 0.05 | 0.07 | 0.04 | 0.03 | 0.12 | 0.46 | 1.78 | 0.43 | 0.71 | 0.08 | 0.02 |
| IN. | 0.14 | 0.06 | 0.08 | 0.05 | 0.03 | 0.14 | 0.51 | 2.05 | 0.48 | 0.81 | 0.10 | 0.02 |
| e Estimated |
| STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1990 - 2003, BY WATER YEAR (WY) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MEAN | 6.67 | 11.9 | 10.2 | 13.0 | 23.1 | 24.4 | 30.5 | 26.8 | 18.3 | 10.2 | 2.60 | 3.22 |
| MAX | 52.5 | 33.6 | 26.6 | 40.2 | 55.4 | 45.8 | 79.4 | 99.6 | 74.4 | 54.0 | 7.60 | 12.9 |
| (WY) | 2002 | 1993 | 1992 | 1999 | 2001 | 1990 | 1993 | 1996 | 1996 | 1993 | 1990 | 1992 |
| MIN | 0.40 | 0.92 | 0.98 | 0.74 | 0.45 | 2.12 | 7.76 | 3.36 | 0.76 | 0.44 | 0.19 | 0.11 |
| (WY) | 1995 | 2003 | 1990 | 2003 | 2003 | 2003 | 2003 | 1994 | 1992 | 1991 | 1991 | 1994 |
| SUMMARY STATISTICS | FOR 2002 CALENDAR YEAR | FOR 2003 WATER YEAR | WATER YEARS 1990 - 2003 | |||
|---|---|---|---|---|---|---|
| ANNUAL TOTAL | 3095.46 | 2046.01 | ||||
| ANNUAL MEAN | 8.48 | 5.61 | 15.0 | |||
| HIGHEST ANNUAL MEAN | 27.6 | 1993 | ||||
| LOWEST ANNUAL MEAN | 5.61 | 2003 | ||||
| HIGHEST DAILY MEAN | 157 | Jun 7 | 77 | May 9 | 284 | May 21 1996 |
| LOWEST DAILY MEAN | 0.45 | Oct 23 | 0.11 | Sep 9 | 0.00 | A |
| ANNUAL SEVEN-DAY MINIMUM | 0.50 | Oct 17 | 0.14 | Sep 5 | 0.00 | Sep 10 1994 |
| MAXIMUM PEAK FLOW | 86 | May 9 | 312 B | Jul 18 1993 | ||
| MAXIMUM PEAK STAGE | 3.69 | May 9 | 6.42 | Jul 18 1993 | ||
| INSTANTANEOUS LOW FLOW | 0.04 | Aug 29,30 | ||||
| ANNUAL RUNOFF (CFSM) | 0.50 | 0.33 | 0.88 | |||
| ANNUAL RUNOFF (INCHES) | 6.77 | 4.48 | 11.99 | |||
| 10 PERCENT EXCEEDS | 20 | 16 | 37 | |||
| 50 PERCENT EXCEEDS | 3.5 | 1.3 | 6.0 | |||
| 90 PERCENT EXCEEDS | 0.70 | 0.37 | 0.57 | |||
B - From rating curve extended above 120 ft3/s on basis of slope-area measurement of peak flow. |