FRS Facility Detail Report


DUFFIE, RALPH J.

EPA Registry Id: 110001852683
1717 ELTON ROAD
SILVER SPRING, MD 20903-1703


The facility locations displayed
come from the FRS Spatial
Coordinates tables. They are the
best representative locations for
the displayed facilities based on
the accuracy of the collection
method and quality assurance
checks performed against each
location. The North American
Datum of 1983 is used to display
all coordinates.

Environmental Interests

Information System System Facility Name Information System Id/Report Link Environmental Interest Type Data Source Last Updated Date Supplemental Environmental Interests:
ICIS-AIR (AIR)
DUFFIE, RALPH J. MD0000002403101386 AIR MINOR ICIS 10/19/2014
AIR FACILITY SYSTEM
DUFFIE, RALPH J. 2403101386 AIR MINOR (OPERATING) AIRS/AFS 11/07/2013
MARYLAND - PERMANENT (AIR) EMISSION
DUFFIE, RALPH J. 031-1386 STATE MASTER MD-PEMIS
-
AIR MINOR

Additional EPA Reports:  

MyEnvironment  Enforcement and Compliance  Facility Coordinates Viewer  Watershed Report

Standard Industrial Classification Codes (SIC)

Data Source SIC Code Description Primary
MD-PEMIS
1541
GENERAL CONTRACTORS-INDUSTRIAL BUILDINGS AND WAREHOUSES

AIRS/AFS
1541
GENERAL CONTRACTORS-INDUSTRIAL BUILDINGS AND WAREHOUSES

AIR
1541
GENERAL CONTRACTORS-INDUSTRIAL BUILDINGS AND WAREHOUSES

Facility Codes and Flags

EPA Region: 03
Duns Number:
Congressional District Number: 03
Legislative District Number:
HUC Code/Watershed: 02070010 / MIDDLE POTOMAC-ANACOSTIA-OCCOQUAN
US Mexico Border Indicator:
Federal Facility: NO
Tribal Land: NO

Alternative Names

No Alternative Names returned.

Organizations

No Organizations returned.

National Industry Classification System Codes (NAICS)

Data Source NAICS Code Description Primary
AIRS/AFS 236210 INDUSTRIAL BUILDING CONSTRUCTION.
AIR 236210 INDUSTRIAL BUILDING CONSTRUCTION.

Facility Mailing Addresses

Affiliation Type Delivery Point City Name State Postal Code Information System
FACILITY MAILING ADDRESS 1717 ELTON ROAD SILVER SPRING MD 20903 AIR
FACILITY MAILING ADDRESS 1717 ELTON ROAD SILVER SPRING MD 20903 AIRS/AFS

Contacts

Affiliation Type Full Name Office Phone Information System Mailing Address
OWNER
DUFFIE, RALPH J.


MD-PEMIS


Query executed on: OCT-15-2025