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Groundwater levels for Illinois

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! Important: Next Generation Monitoring Location Page

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USGS 383741090081701 2N 9W-18.4g

St. Clair County, Illinois
Hydrologic Unit Code 07140101
Latitude  38°37'41", Longitude  90°08'17" NAD27
Land-surface elevation 415 feet above NAVD88
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Graph of groundwater level data at USGS 383741090081701 2N 9W-18.4g
Breaks in the plot represent a gap of at least one year between field measurements.
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