[Parameters: Topic='TERRESTRIAL HYDROSPHERE', Term='GROUND WATER', Variable_Level_1='GROUNDWATER CHEMISTRY']
Environmental Display Manager (EDM)Entry ID: EPA0156
Abstract: The "Environmental Display Manager (EDM)" is a database which
ties together national on-line databases that contain spatial
and attribute information on industrial and municipal
dischargers, drinking water supplies, stream flow, water quality
monitoring stations, discharge permit compliance reports, and
hydrologic maps. EDM provides easy access to automated
environmental analyses, reports, and ... data, graphics, images,
texts, and documents that can be used by numerous output
devices, software packages, and computers. EDM can be used to
generate reports on multiple individual pollutant and water
quality measurements at specific locations. With maps, the user
can look at the rivers in any state, can zoom in on a small
pond, and can overlay and identify particular features. Maps
showing locations of discharge permitted facilities, surface
water supplies (including utilities, intakes, and sources), and
population centers can also be generated. Maps also display
roads, rivers, and lakes. The detail of the map is flexible.
The USEPA uses EDM for regulatory, monitoring, and research
purposes such as assessment of the nation's water quality,
environmental planning, developing and promoting environmental
laws, and environmental enforcement. Reports from EDM can be
used for education and public awareness.
The mapping component of EDM works with an electronic version of
the 54,000 base maps of the U.S. Geological Survey, also known
as the 7.5-minute quadrangle maps. These maps portray features
at the 1:100,000 scale. The hydrologic data from these maps are
stored separately as the River Reach file. This file includes
over 100 million records containing the latitude and longitude
coordinates of streams, lakes, reservoirs, estuaries, and
shorelines in the United States. Also included in the mapping
component of EDM are the latitude/longitude, stream reach cross
references, and population of cities in the United States.
Information on water comes from two sources: the Storage and
Retrieval of Water Quality File (STORET) and the Permit
Compliance System (PCS).
Data Center: U.S. Environmental Protection Agency (USEPA)
Dissemination Media: Online
EDM is available through any EPA National Computer Center. It
can also be accessed through federal, state, academic, and
private communications networks, including SNA Backbone, X.25
Backbone, and Tymnet. Contact the data center for further
To retrieve EDM data directly: Users must be registered to
access the IBM 3090S computer system at the EPA National
Computer Center and have an IBM 3270 computer terminal or
equivalent and a PC with a serial port or at least a 1,200-baud
modem (or preferably a 2,400- or 9,500-baud modem, a PC with an
IRMA board, or a PC compatible with a 9,600-baud controller). To
register, contact the data center.
Availability Status: On Request
HUMAN DIMENSIONS > ENVIRONMENTAL IMPACTS > CONTAMINANT LEVELS/SPILLS
TERRESTRIAL HYDROSPHERE > GROUND WATER > GROUNDWATER CHEMISTRY
TERRESTRIAL HYDROSPHERE > SURFACE WATER > RIVERS/STREAMS
TERRESTRIAL HYDROSPHERE > SURFACE WATER > WATERSHED CHARACTERISTICS
TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > CONTAMINANTS
Role: TECHNICAL CONTACT
U.S. Environmental Protection Agency (USEPA) Office of Water, Assessment, and Watershed Protection Division, WH553 401 M Street S.W.
Province or State: DC
Postal Code: 20460
U.S. Environmental Protection Agency (USEPA). May 1992.
Inventory of Exposure-related Data Systems Sponsored by Federal
Agencies. Washington, DC : USEPA.
Creation and Review Dates
Last DIF Revision Date: 2008-02-28