LOCATION.-- Lat 39°37'31", long 90°47'38" (NAD of 1927), in NE1/4SW1/4 sec.18, T.5 S., R.3 W., Pike County, Hydrologic Unit 07110004, on right bank at downstream side of bridge on abandoned county road, 50 ft downstream from Panther Creek, 0.1 mi downstream from U.S. Highway 54, 1.4 mi northeast of Pittsfield, and at mile 33.6. | |
DRAINAGE AREA.-- 39.4 mi2. | |
PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE | |
DISCHARGE: October 1939 to current year. | |
STAGE: Water years 1994-2002. | |
REVISED RECORDS.-- WSP 1175: 1940(P), 1941, 1949. WSP 1508: 1942. WDR IL-75-1: Drainage area. | |
GAGE.-- Water-stage recorder, phone telemeter, and crest-stage gage. Datum of gage is 638.48 ft above NGVD of 1929 (levels by U.S. Army Corps of Engineers). Prior to Dec. 7, 1939, nonrecording gage at same site and datum. | |
REMARKS.-- Effluent from sewage-treatment plant upstream at Pittsfield. | |
EXTREMES FOR PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 13,700 ft3/s, Sept. 14, 1993, gage height, 14.92 ft, from rating curve extended above 4,400 ft3/s; no flow during many periods. | |
EXTREMES OUTSIDE PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE: Flood of Sept. 8, 1926, reached a stage of 18.4 ft, from floodmark, discharge not determined. | |
REMARKS FOR CURRENT YEAR.-- Records fair except those for estimated daily discharge, which are poor. Effluent from sewage-treatment plant upstream at Pittsfield averaged 1.65 ft3/s. | |
| DISCHARGE, in CFS, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
| 1 | 1.7 | 2.6 | 6.9 | e2.5 | 280 | 13 | 10 | 311 | 25 | 3.5 | 1.1 | 0.88 |
| 2 | 1.7 | 3.7 | 5.3 | e2.2 | 113 | e40 | 9.6 | 132 | 22 | 3.2 | 1.2 | 0.76 |
| 3 | 1.7 | 2.7 | 5.2 | e2.4 | 73 | e30 | 6.9 | 81 | 18 | 2.9 | 1.1 | 0.62 |
| 4 | 1.9 | 2.5 | 4.7 | 2.7 | 41 | 21 | 6.2 | 65 | 19 | 2.6 | 0.78 | 0.55 |
| 5 | 25 | 2.0 | 4.7 | 3.4 | 29 | 51 | 6.4 | 56 | 19 | 2.5 | 0.87 | 0.54 |
| 6 | 11 | 1.9 | 5.2 | 4.0 | 28 | 117 | 6.2 | 1150 | 15 | 2.4 | 0.72 | 0.57 |
| 7 | 2.5 | 2.3 | 4.8 | 3.4 | 25 | 64 | 9.3 | 994 | 14 | 2.2 | 0.71 | 0.68 |
| 8 | 1.7 | 1.8 | 4.0 | 3.6 | 22 | 42 | 196 | 226 | 12 | 2.1 | 0.80 | 0.74 |
| 9 | 3.4 | 1.5 | 3.5 | 4.7 | 22 | 152 | 128 | 626 | 11 | 2.0 | 1.2 | 0.80 |
| 10 | 7.2 | 1.3 | 3.2 | 5.6 | 30 | 44 | 43 | 113 | 11 | 2.6 | 0.92 | 18 |
| 11 | 37 | 1.1 | 3.3 | 4.5 | 19 | 36 | 27 | 993 | 222 | 53 | 0.76 | 5.1 |
| 12 | 261 | 1.1 | 9.3 | 4.4 | 18 | 34 | 21 | 875 | 685 | 3.4 | 0.74 | 0.92 |
| 13 | 129 | 1.6 | 47 | 4.3 | 13 | 28 | 18 | 396 | 626 | 2.5 | 0.70 | 0.62 |
| 14 | 39 | 2.3 | 8.3 | 4.5 | 14 | 24 | 17 | 120 | 98 | 2.1 | 0.73 | 0.57 |
| 15 | 10 | 1.5 | 6.0 | 3.2 | 13 | 20 | 14 | 91 | 58 | 1.8 | 0.88 | 2.4 |
| 16 | 28 | 1.5 | 16 | 3.2 | 12 | 17 | 11 | 201 | 43 | 1.9 | 6.4 | 0.83 |
| 17 | 9.0 | 1.7 | 56 | 2.9 | 11 | 16 | 9.1 | 286 | 30 | 1.7 | 0.83 | 0.64 |
| 18 | 6.8 | 1.4 | 24 | 2.6 | 11 | 15 | 8.4 | 144 | 25 | 1.7 | 1.7 | 0.63 |
| 19 | 3.5 | 1.6 | 16 | 3.3 | 19 | 17 | 9.8 | 82 | 20 | 2.5 | 353 | 0.79 |
| 20 | 3.5 | 1.3 | 14 | 3.4 | 78 | 24 | 12 | 66 | 15 | 1.6 | 14 | 11 |
| 21 | 2.6 | 1.4 | 15 | 3.5 | 36 | 16 | 542 | 58 | 11 | 1.3 | 3.4 | 1.5 |
| 22 | 2.5 | 1.2 | 20 | 3.3 | 23 | 11 | 96 | 54 | 10 | 1.3 | 1.5 | 0.90 |
| 23 | 14 | 1.4 | 18 | 5.0 | 22 | 12 | 52 | 48 | 8.5 | 1.6 | 522 | 0.72 |
| 24 | 7.3 | 87 | 9.5 | 5.2 | 20 | 13 | 720 | 45 | 7.3 | 1.5 | 30 | 0.65 |
| 25 | 4.1 | 16 | 7.0 | 3.2 | 16 | 17 | 193 | 40 | 9.3 | 1.2 | 12 | 0.65 |
| 26 | 3.0 | 11 | e6.6 | 3.1 | 14 | 14 | 91 | 32 | 26 | 11 | 9.4 | 0.78 |
| 27 | 3.0 | 9.6 | e6.3 | 3.0 | 12 | 14 | 1820 | 31 | 6.9 | 3.4 | 7.3 | 1.2 |
| 28 | 2.7 | 5.5 | e6.0 | 3.0 | 12 | 14 | 266 | 30 | 5.1 | 1.4 | 3.9 | 1.2 |
| 29 | 2.6 | 6.0 | e5.0 | 2.9 | --- | 14 | 128 | 55 | 4.4 | 0.93 | 2.4 | 1.3 |
| 30 | 1.9 | 8.4 | e3.5 | 132 | --- | 13 | 92 | 38 | 4.0 | 0.88 | 1.6 | 1.3 |
| 31 | 1.9 | --- | e2.8 | 1270 | --- | 10 | --- | 28 | --- | 0.84 | 1.1 | --- |
| TOTAL | 630.2 | 184.9 | 347.1 | 1505.0 | 1026 | 953 | 4568.9 | 7467 | 2080.5 | 123.55 | 983.74 | 57.84 |
| MEAN | 20.33 | 6.163 | 11.20 | 48.55 | 36.64 | 30.74 | 152.3 | 240.9 | 69.35 | 3.985 | 31.73 | 1.928 |
| MAX | 261 | 87 | 56 | 1270 | 280 | 152 | 1820 | 1150 | 685 | 53 | 522 | 18 |
| MIN | 1.7 | 1.1 | 2.8 | 2.2 | 11 | 10 | 6.2 | 28 | 4.0 | 0.84 | 0.70 | 0.54 |
| CFSM | 0.52 | 0.16 | 0.28 | 1.23 | 0.93 | 0.78 | 3.87 | 6.11 | 1.76 | 0.10 | 0.81 | 0.05 |
| IN. | 0.60 | 0.17 | 0.33 | 1.42 | 0.97 | 0.90 | 4.31 | 7.05 | 1.96 | 0.12 | 0.93 | 0.05 |
| e Estimated |
| STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 2002, BY WATER YEAR (WY) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MEAN | 12.41 | 16.70 | 17.12 | 18.45 | 31.70 | 39.82 | 50.95 | 52.79 | 33.79 | 26.23 | 13.33 | 19.35 |
| MAX | 140 | 201 | 142 | 114 | 126 | 132 | 207 | 283 | 243 | 417 | 103 | 359 |
| (WY) | 1942 | 1986 | 1983 | 1974 | 1942 | 1973 | 1973 | 1970 | 1945 | 1981 | 1961 | 1993 |
| MIN | 0.20 | 0.19 | 0.081 | 0.057 | 0.27 | 0.45 | 3.61 | 1.23 | 0.94 | 0.10 | 0.074 | 0.057 |
| (WY) | 1951 | 1951 | 1951 | 1940 | 1954 | 1956 | 1963 | 1954 | 1977 | 1940 | 1941 | 1940 |
| SUMMARY STATISTICS | FOR 2001 CALENDAR YEAR | FOR 2002 WATER YEAR | WATER YEARS 1940 - 2002 | |||
|---|---|---|---|---|---|---|
| ANNUAL TOTAL | 15070.07 | 19927.73 | ||||
| ANNUAL MEAN | 41.29 | 54.60 | 27.66 | |||
| HIGHEST ANNUAL MEAN | 94.8 | 1993 | ||||
| LOWEST ANNUAL MEAN | 2.76 | 1940 | ||||
| HIGHEST DAILY MEAN | 3280 | Jun 6 | 1820 | Apr 27 | 5660 | Jul 26 1981 |
| LOWEST DAILY MEAN | 0.40 | Aug 6 | 0.54 | Sep 5 | 0.00 | A |
| ANNUAL SEVEN-DAY MINIMUM | 0.49 | Aug 14 | 0.64 | Sep 2 | 0.00 | Aug 19 1941 |
| MAXIMUM PEAK FLOW | 5270 | May 6 | 13700 B | Sep 14 1993 | ||
| MAXIMUM PEAK STAGE | 12.22 | May 6 | 14.92 | Sep 14 1993 | ||
| INSTANTANEOUS LOW FLOW | 0.39 | Sep 5,6 | ||||
| ANNUAL RUNOFF (CFSM) | 1.05 | 1.39 | 0.70 | |||
| ANNUAL RUNOFF (INCHES) | 14.23 | 18.82 | 9.54 | |||
| 10 PERCENT EXCEEDS | 56 | 97 | 39 | |||
| 50 PERCENT EXCEEDS | 7.3 | 7.3 | 3.7 | |||
| 90 PERCENT EXCEEDS | 0.89 | 1.0 | 0.30 | |||