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DESCRIPTION:

Latitude 40°14'46",   Longitude 89°51'40"   NAD27

Mason County, Illinois, Hydrologic Unit 07130008

Drainage area: 26.5 square miles

Datum of gage: 486.78 feet above   NGVD29.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Daily Data
Discharge, cubic feet per second	1949-10-01	1975-09-30	9496
Daily Statistics
Discharge, cubic feet per second	1949-10-01	1975-09-30	9496
Monthly Statistics
Discharge, cubic feet per second	1949-10	1975-09
Annual Statistics
Discharge, cubic feet per second	1950	1975
Peak streamflow	1949-12-21	1981-06-25	32
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	1961-10-10	1996-08-26	147
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