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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

USGS 415841091400301 083N07W21CDD 00331 1935

Linn County, Iowa
Latitude  41°58'41", Longitude  91°40'03" NAD27
Land-surface elevation 716 feet above NGVD29
The depth of the well is 430 feet below land surface.
The depth of the hole is 430 feet below land surface.
This well is completed in the Silurian-Devonian aquifers (N400SLRDVN) national aquifer.
This well is completed in the Niagaran Series (355NIGR) local aquifer.

Period of record
Begin Date End Date Levels
1936-04-23 1936-04-23 1

 
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