Arsenic in ground water of the United States
Entry ID: USGS_ARSENIC_H2O

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Summary
Abstract: [From Arsenic in ground water of the United States,
http://water.usgs.gov/nawqa/trace/arsenic/

Arsenic is a naturally occurring element in the environment. Arsenic in ground
water is largely the result of minerals dissolving naturally from weathered
rocks and soils. Several types of cancer have been linked to arsenic in water.
The US Environmental Protection Agency is currently reviewing the maximum
contaminant level of arsenic permitted in drinking water, and will likely lower
it, as recommended last year by the National Research Council.

The USGS has developed a map that shows where and to what extent arsenic occurs
in ground water across the country. Highest concentrations were found
throughout the West and in parts of the Midwest and Northeast.
Related URL
Description: This is the location of the dataset.
Multimedia Sample
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Caption:  Arsenic concentrations for collected ground-water samples
Description:  This map illustrates the arsenic concentrations in 18,850
ground-water samples which were collected in 1973-97.

 
Geographic Coverage
Spatial coordinates   
  N: 50.0   S: 25.0   E: -67.0   W: -125.0

Data Set Citation
Dataset Originator/Creator: Focazio, M.J., Welch, A.H., Watkins, S.A., Helsel, D.R., and Horn, M.A.
Dataset Title: A retrospective analysis on the occurrence of arsenic in ground- water resources of the United States and limitations in drinking-water-supply characterizations
Dataset Series Name: U.S. Geological Survey Water-Resources Investigations Report
Dataset Release Date: 1999
Dataset Publisher: U.S. Geological Survey
Issue Identification: 99-4279
Data Presentation Form: TAB-delimited ASCII text
Online Resource: http://water.usgs.gov/nawqa/trace/data/arsenic_may2000.txt
Temporal Coverage
Start Date: 1973-01-01
Stop Date: 1997-01-01
Access Constraints None
Use Constraints Please cite data.
Ancillary Keywords
Data Set Progress
IN WORK
Originating Center
Data Center
National Analysis of Trace Elements, National Water Quality Assessment Program, Water Resources Discipline, U.S. Geological Survey, U.S. Department of the Interior Supplemental Info
Data Center URL: http://water.usgs.gov/nawqa/trace/
Dataset ID: arsenic_may2000.txt

Data Center Personnel
Name: DENNIS R. HELSEL
Phone: (303) 236-5340
Fax: (303) 236-1425
Email: dhelsel at usgs.gov
Contact Address:
National Water-Quality Assessment
U.S. Geological Survey
Box 25046, MS 415
Denver Federal Center
City: Denver
Province or State: CO
Postal Code: 80225-0046
Country: USA
Distribution
Distribution Media: Online Internet (HTTP)
Distribution Size: 1,130 Kbytes
Distribution Format: Tab-delimited text file
Fees: None
Personnel
Role: TECHNICAL CONTACT
Phone: (303) 236-5340
Fax: (303) 236-1425
Email: dhelsel at usgs.gov
Contact Address:
National Water-Quality Assessment
U.S. Geological Survey
Box 25046, MS 415
Denver Federal Center
City: Denver
Province or State: CO
Postal Code: 80225-0046
Country: USA
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Publications/References
Welch, A.H., Watkins, S.A., Helsel, D.R., and Focazio, M.F., 2000, Arsenic in
ground-water resources of the United States: U.S. Geological Survey Fact Sheet
063-00, 4p.
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2000-07-27
Last DIF Revision Date: 2008-05-30
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