LOCATION.-- Lat 39°40'52", long 88°22'34", in NW1/4NW1/4 sec.12,T.14 N., R.7 E., hydrologic unit 07140201, on upstream side of highway bridge about 2 miles south of Chesterville and 3 1/2 miles west of Arcola, and at mile 251.7.

DRAINAGE AREA.-- 390 mi².

PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE

DISCHARGE: April 1908 to December 1912.

GAGE.-- Chain gage. Datum of gage is 626.4 ft above NGVD of 1929 (626.1 ft NAVD 1988).

REMARKS.-- Records generally good except those for periods of ice effect, which are poor.

EXTREMES FOR PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 3,980 ft³/s, May 7, 1908, gage height, 17.6 ft, from graph based on gage readings; no flow Sept. 13, 1908 to Jan. 24, 1909, and July 26, 1911.