LOCATION.-- Lat 40°40'03", long 89°30'15" (NAD of 1927), in SE1/4NE1/4 sec.36, T.26 N., R.4 W., Tazewell County, Hydrologic Unit 07130001, on right bank at upstream side of bridge, 0.2 mi east of Farmdale, 0.3 mi upstream from Norfolk & Western Railway bridge, 0.3 mi downstream from Toledo, Peoria & Western Railroad bridge, and at mile 5.8. |
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DRAINAGE AREA.-- 27.4 mi2. |
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PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE |
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DISCHARGE: October 1948 to October 1985. Seven-month period (March to September), March 1986 to current. |
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STAGE: Water years 1994-2002. |
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PARTIAL RECORD: Miscellaneous discharge measurements, water years 1986-99. |
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REVISED RECORDS.-- WDR IL-75-1: Drainage area. |
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GAGE.-- Water-stage recorder, crest-stage gage, and concrete control. Datum of gage is 530.12 ft above NGVD of 1929. Prior to Mar. 5, 2002, water-stage recorder and concrete control at site 400 ft. downstream at same datum. |
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REMARKS.-- High flow regulated by Farmdale Dam, 1 mi upstream effective Aug. 16, 1951. |
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EXTREMES FOR PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Prior to Mar. 5, 2002, maximum gage height, 7.58 ft, Apr. 24, 1950, discharge not determined; maximum discharge prior to Mar. 5, 2002 and after Farmdale Dam (Aug. 16, 1951) 1,050 ft3/s, June 2, 1980, gage height, 4.43 ft; maximum gage height, 6.55 ft, Feb. 20, 1982, ice jam; after Mar. 5, 2002, maximum gage height, 9.37 ft, May 12, 2002, discharge 598 ft3/s; no flow for several days in most years. |
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REMARKS FOR CURRENT YEAR.-- Records fair except those for estimated daily discharges, which are poor. |
DISCHARGE, in CFS, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002 DAILY MEAN VALUES |
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DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
1 | --- | --- | --- | --- | --- | --- | 21 | 73 | 22 | 7.8 | 2.4 | 2.2 |
2 | --- | --- | --- | --- | --- | --- | 25 | 84 | 20 | 7.3 | 2.1 | 2.2 |
3 | --- | --- | --- | --- | --- | --- | 21 | 55 | 19 | 6.7 | 2.0 | 2.0 |
4 | --- | --- | --- | --- | --- | --- | 19 | 46 | 25 | 6.2 | 1.9 | 1.9 |
5 | --- | --- | --- | --- | --- | e22 | 18 | 40 | 25 | 5.6 | 1.9 | 1.9 |
6 | --- | --- | --- | --- | --- | 51 | 17 | 41 | 19 | 5.3 | 1.7 | 1.9 |
7 | --- | --- | --- | --- | --- | 86 | 24 | 33 | 17 | 5.1 | 1.6 | 1.8 |
8 | --- | --- | --- | --- | --- | 99 | 119 | 31 | 15 | 4.8 | 1.5 | 1.8 |
9 | --- | --- | --- | --- | --- | 157 | 117 | 140 | 14 | 4.4 | 1.6 | 1.9 |
10 | --- | --- | --- | --- | --- | 78 | 68 | 52 | 14 | 4.1 | 1.5 | 1.7 |
11 | --- | --- | --- | --- | --- | 58 | 53 | 284 | 31 | 4.2 | 1.6 | 1.6 |
12 | --- | --- | --- | --- | --- | 49 | 39 | 569 | 24 | 4.1 | 1.5 | 1.7 |
13 | --- | --- | --- | --- | --- | 45 | 37 | 562 | 96 | 3.5 | 1.9 | 1.6 |
14 | --- | --- | --- | --- | --- | 41 | 35 | 506 | 45 | 3.2 | 1.7 | 1.7 |
15 | --- | --- | --- | --- | --- | 34 | 32 | 182 | 30 | 2.8 | 1.6 | 2.1 |
16 | --- | --- | --- | --- | --- | 28 | e28 | 87 | 22 | 2.7 | 2.3 | 2.1 |
17 | --- | --- | --- | --- | --- | 27 | e25 | 86 | 18 | 2.5 | 2.3 | 1.8 |
18 | --- | --- | --- | --- | --- | 25 | e23 | 77 | 16 | 3.0 | 1.6 | 1.9 |
19 | --- | --- | --- | --- | --- | 24 | e21 | 61 | 15 | 3.5 | 35 | 1.8 |
20 | --- | --- | --- | --- | --- | 24 | e20 | 52 | 14 | 2.9 | 5.0 | 4.5 |
21 | --- | --- | --- | --- | --- | 20 | e60 | 46 | 13 | 2.9 | 2.7 | 2.6 |
22 | --- | --- | --- | --- | --- | 19 | e37 | 42 | 12 | 2.8 | 2.4 | 2.0 |
23 | --- | --- | --- | --- | --- | 19 | e22 | 39 | 12 | 2.6 | 79 | 2.1 |
24 | --- | --- | --- | --- | --- | 19 | e70 | 64 | 11 | 2.4 | 10 | 1.7 |
25 | --- | --- | --- | --- | --- | 18 | 56 | 41 | 11 | 2.1 | 4.6 | 1.7 |
26 | --- | --- | --- | --- | --- | 18 | 39 | 35 | 15 | 4.7 | 3.6 | 1.7 |
27 | --- | --- | --- | --- | --- | 18 | 204 | 32 | 12 | 17 | 3.0 | 1.7 |
28 | --- | --- | --- | --- | --- | 23 | 241 | 29 | 10 | 9.9 | 2.7 | 1.6 |
29 | --- | --- | --- | --- | --- | 28 | 92 | 27 | 9.0 | 11 | 2.5 | 1.8 |
30 | --- | --- | --- | --- | --- | 26 | 66 | 26 | 8.6 | 4.5 | 2.4 | 1.6 |
31 | --- | --- | --- | --- | --- | 22 | --- | 24 | --- | 2.7 | 2.2 | --- |
TOTAL | --- | --- | --- | --- | --- | --- | 1649 | 3466 | 614.6 | 152.3 | 187.8 | 58.6 |
MEAN | --- | --- | --- | --- | --- | --- | 54.97 | 111.8 | 20.49 | 4.913 | 6.058 | 1.953 |
MAX | --- | --- | --- | --- | --- | --- | 241 | 569 | 96 | 17 | 79 | 4.5 |
MIN | --- | --- | --- | --- | --- | --- | 17 | 24 | 8.6 | 2.1 | 1.5 | 1.6 |
CFSM | --- | --- | --- | --- | --- | --- | 2.01 | 4.08 | 0.75 | 0.18 | 0.22 | 0.07 |
IN. | --- | --- | --- | --- | --- | --- | 2.24 | 4.71 | 0.83 | 0.21 | 0.25 | 0.08 |
e Estimated |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |