File:Glacial Aquifer System (16456871663).jpg

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The glacial aquifer system in the Midwest, near Canton, IL. Here we see Bill Morrow, USGS, getting to the field early. The glacial aquifer system includes all unconsolidated aquifers above bedrock north of the line of continental glaciation throughout the country.

The glacial aquifer system is the largest aquifer in areal extent used for drinking water and public supply in the U.S. and is present in parts of 25 states. Groundwater availability in the system may be constrained by climatic conditions (limited recharge), poor water quality from natural or man-made constituents, hydrogeology (limited storage or low hydraulic conductivity), concerns of conflicts with current groundwater users, or the desire to maintain or restore environmental streamflows.

Learn more at on.doi.gov/GlacialAquifer
Date
Source Glacial Aquifer System
Author U.S. Geological Survey from Reston, VA, USA

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Creative Commons CC-Zero This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.

This image was originally posted to Flickr by U.S. Geological Survey at https://flickr.com/photos/27784370@N05/16456871663 (archive). It was reviewed on 19 January 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-zero.

19 January 2018

Public domain
This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.

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current20:36, 19 January 2018Thumbnail for version as of 20:36, 19 January 20182,272 × 1,704 (2.16 MB)Artix Kreiger 2 (talk | contribs)Transferred from Flickr via Flickr2Commons

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