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DESCRIPTION:

Latitude 40°20'16.5",   Longitude 90°02'35.4"   NAD83

Mason County, Illinois, Hydrologic Unit 07130003

Datum of gage: 431 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Field/Lab water-quality samples	2023-04-03	2023-07-17	2
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