Acidic Surface Waters of the Conterminous United States GIS Data for the EPA Clean Air Mapping and Analysis Program (C-MAP)
Entry ID: A_Water_EPA

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Summary
Abstract: This coverage contains information about estimates of current
acid-base status of surface waters in National Surface Water Survey
regions in the conterminous U.S., as reported in the National Acid
Precipitation Assessment Program's 1990 Integrated Assessment Report
(NAPAP, 1991). It was created by the Environmental Protection Agency's
Clean Air Markets Division (CAMD) for use with their GIS in ... View entire text
Related URL
Description: GCMD metadata on "National Acid Precipitation Assessment Program".

Description: Homepage of the Clean Air Mapping and Analysis Program (C-Map).
Geographic Coverage
Spatial coordinates   
  N: 48.25   S: 22.87   E: -65.35   W: -127.88

Data Set Citation
Dataset Originator/Creator: EPA/CAMD > Clean Air Markets Division, EPA
Dataset Title: National Acid Precipitation Assessment Program's 1990 Integrated Assessment Report
Dataset Release Date: 1990-01-01
Dataset Publisher: EPA/CAMD
Data Presentation Form: Map
Online Resource: http://camddataandmaps.epa.gov/gdm/
Quality Some of these boundaries may not precisely match the acidic surface
water locations, but they are adequate for national-level
analyses. Use of this dataset in smaller scale analyses is not
advised.

This coverage was created using information from Figure 2.2-4 in the
National Acid Precipitation Assessment Program's 1990 Integrated
Assessment Report by digitizing the boundary areas for the Acidic
Surface Waters. The information was incorporated into a .dbf file,
converted to a coverage and projected using ArcInfo 8.0.2.
Access Constraints None
Use Constraints Not all of the acidic surface water areas may precisely match the
actual locations due to the fact that the data was digitized from a
scanned image, but they are adequate for national-level analyses. Use
of this dataset in smaller scale analyses is not advised.
Data Set Progress
COMPLETE
Originating Center
Data Center
Clean Air Markets Division, U.S. Environmental Protection Agency Supplemental Info
Data Center URL: http://www.epa.gov/airmarkets/

Data Center Personnel
Name: EPA CLEAN AIR MARKETS DIVISION
Phone: 202-564-9180
Email: camdgis at epa.gov
Contact Address:
US EPA
Clean Air Markets Division
1200 Pennsylvania Avenue, NW
Mail Code 6204J
City: Washington
Province or State: DC
Postal Code: 20460
Country: USA
Distribution
Distribution Media: electronic
Distribution Size: 191 KB
Fees: No fees
Personnel
Role: DIF AUTHOR
Phone: (301) 614-6898
Fax: 301-614-5268
Email: Tyler.B.Stevens at nasa.gov
Contact Address:
NASA Goddard Space Flight Center
Global Change Master Directory
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA
Creation and Review Dates
DIF Creation Date: 2002-11-21
Last DIF Revision Date: 2008-09-23
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