LOCATION.-- Lat 41°31'19", long 87°41'04" (NAD of 1927), at SE¼ SE¼ NW¼ sec.13, T.35N., R.13E., Cook County, Hydrologic Unit 07120003, 624 feet upstream of concrete bridge on Country Club Road.

DRAINAGE AREA.-- 18.7 mi².

PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE

PARTIAL RECORD: Miscellaneous discharge measurements, water year 2000.

SURFACE-WATER QUALITY

MISCELLANEOUS: Water year 2000; contaminants in streambed sediments, water year 2000.

BIOLOGICAL

ALGAE: Pigment and biomass, Water year 2000.

BENTHIC MACROINVERTEBRATES: Water year 2000.

HABITAT: Water year 2000.