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USGS Groundwater Watch

USGS maintains a network of active wells to provide basic statistics about groundwater levels.

 [Image: USGS active water level wells location map.]

USGS in Your State

USGS Water Science Centers are located in each state.

 [Map: There is a USGS Water Science Center office in each State.] Washington Oregon California Idaho Nevada Montana Wyoming Utah Colorado Arizona New Mexico North Dakota South Dakota Nebraska Kansas Oklahoma Texas Minnesota Iowa Missouri Arkansas Louisiana Wisconsin Illinois Mississippi Michigan Indiana Ohio Kentucky Tennessee Alabama Pennsylvania West Virginia Georgia Florida Caribbean Alaska Hawaii and Pacific Islands New York Vermont New Hampshire Maine Massachusetts South Carolina North Carolina Rhode Island Virginia Connecticut New Jersey Maryland-Delaware-D.C.

Other USGS Water Science Areas

USGS Groundwater Information > Data > Aquifers > Ground Water Atlas

 [Map from Ground Water Atlas of the United States]

Aquifers: Ground Water Atlas of the United States

The Ground Water Atlas of the United States, USGS Hydrologic Atlas 730 (Miller, 2000), describes the location, hydrologic characteristics, and geologic characteristics of the principal aquifers throughout the 50 States, Puerto Rico, and the U.S. Virgin Islands. The groundwater information summarized in the Atlas was collected over many years by the USGS and other partner agencies and published in 2000. The Atlas provides key descriptive information in a regional and national context.


Download Chapters of the Ground Water Atlas of the United States as PDF

Please note: The Ground Water Atlas is an oversized document (18x23 inches).

Foreword, Preface, Contents, Conversion Factors, and Acknowledgments [4.3MB PDF]

HA 730-A Introduction and National Summary, Published 1999 [38MB PDF]

HA 730-B California, Nevada, Published 1995 [70MB PDF]

HA 730-C Arizona, Colorado, New Mexico, Utah, Published 1995 [87MB PDF]

HA 730-D Kansas, Missouri, Nebraska, Published 1997 [57MB PDF]

HA 730-E Oklahoma, Texas, Published 1996 [62MB PDF]

HA 730-F Arkansas, Louisiana, Mississippi, Published 1998 [63MB PDF]

HA 730-G Alabama, Florida, Georgia, South Carolina, Published 1990 [66MB PDF]

HA 730-H Idaho, Oregon, Washington, Published 1994 [68MB PDF]

HA 730-I Montana, North Dakota, South Dakota, Wyoming, Published 1996 [56MB PDF]

HA 730-J Iowa, Michigan, Minnesota, Wisconsin, Published 1992 [71MB PDF]

HA 730-K Illinois, Indiana, Kentucky, Ohio, Tennessee, Published 1995 [67MB PDF]

HA 730-L Delaware, Maryland, New Jersey, North Carolina, Pennsylvania, Virginia, West Virginia, Published 1997 [57MB PDF]

HA 730-M Connecticut, Maine, Massachusetts, New Hampshire, New York, Rhode Island, Vermont, Published 1995 [58MB PDF]

HA 730-N Alaska, Hawaii, Puerto Rico and the U.S. Virgin Islands, Published 1999 [91MB PDF]


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Atlas Figures and Maps: Frequently Asked Questions (FAQs)

Can I get GIS files for the Atlas figures?

No GIS files were published with the Atlas. No GIS files are available for the figures.

GIS files based on the Ground Water Atlas were released of the shallowest principal aquifers of the conterminous United States, Hawaii, Puerto Rico, and the U.S. Virgin Islands.

Refer to recent and ongoing regional groundwater availability studies for more recent geospatial data.

Where can I get the figures from the Atlas?

Figures can be downloaded from the Atlas web site or extracted from the PDF files linked to above.

Can I use the Atlas figures in my publication?

Unless otherwise specified, figures in the Atlas are in the public domain. Refer to USGS policies on copyrights and credits for more information.

Can I purchase a copy of the Atlas?

A bound copy of the Atlas can be purchased through the USGS Store. Please contact the USGS Store directly:
Phone: 1-888-ASK-USGS (1-888-275-8747), Select Option 1

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