FRS Facility Detail Report


CENTRAL DENVER IRON WORKS, INC

EPA Registry Id: 110009557568
4245 FOX STREET
DENVER, CO 80216-2640


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:
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
CENTRAL DENVER IRONWORKS INC COR900682 ICIS-NPDES NON-MAJOR ICIS
ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY
ICIS-AIR (AIR)
CENTRAL DENVER IRON WORKS INC CO0000000803101736 AIR MINOR ICIS 11/22/2018
RESOURCE CONSERVATION AND RECOVERY ACT INFORMATION SYSTEM
AMERICAN STEEL AND IRON WORKS INC COD007061518 UNSPECIFIED UNIVERSE (N) RCRAINFO

AIR FACILITY SYSTEM
CENTRAL DENVER IRON WORKS INC 0803101736 AIR MINOR (OPERATING) AIRS/AFS 08/26/2013
EMISSION INVENTORY SYSTEM (EIS)
CENTRAL DENVER IRON WORKS, INC 700011 AIR MINOR EIS 01/08/2024
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
CENTRAL DENVER IRONWORKS INC COR900682 STORM WATER INDUSTRIAL ICIS
ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY

Additional EPA Reports:  

MyEnvironment  Enforcement and Compliance  Facility Coordinates Viewer  Watershed Report

Standard Industrial Classification Codes (SIC)

Data Source SIC Code Description Primary
NPDES
3441
FABRICATED STRUCTURAL METAL

AIR
3441
FABRICATED STRUCTURAL METAL

AIRS/AFS
3441
FABRICATED STRUCTURAL METAL

Facility Codes and Flags

EPA Region: 08
Duns Number:
Congressional District Number: 01
Legislative District Number:
HUC Code/Watershed: 10190003 / MIDDLE SOUTH PLATTE-CHERRY CREEK
US Mexico Border Indicator:
Federal Facility: NO
Tribal Land: NO

Alternative Names

Alternative Name Source of Data
CENTRAL DENVER IRONWORKS INCORPORATED MANUAL ENTRY
AMERICAN STEEL AND IRON WORKS INC NOTIFICATION (RCRA)

Organizations

No Organizations returned.

National Industry Classification System Codes (NAICS)

Data Source NAICS Code Description Primary
AIRS/AFS 332312 FABRICATED STRUCTURAL METAL MANUFACTURING.
EIS 332312 FABRICATED STRUCTURAL METAL MANUFACTURING.
RCRAINFO 332312 FABRICATED STRUCTURAL METAL MANUFACTURING.
AIR 332312 FABRICATED STRUCTURAL METAL MANUFACTURING.

Facility Mailing Addresses

Affiliation Type Delivery Point City Name State Postal Code Information System
FACILITY MAILING ADDRESS 4245 FOX ST DENVER CO 80216 AIRS/AFS
FACILITY MAILING ADDRESS 4245 FOX ST DENVER CO 80216 AIR
REGULATORY CONTACT 4245 FOX ST DENVER CO 80216 RCRAINFO
FACILITY MAILING ADDRESS 4245 FOX ST DENVER CO 80216 RCRAINFO

Contacts

Affiliation Type Full Name Office Phone Information System Mailing Address
PERMITTEE
TIM DUFFICY
3034333180
NPDES


COMPLIANCE CONTACT
WILLIAM DUFFICY
3034333180
AIR


UNKNOWN CONTACT
WILLIAM DUFFICY
3034333180
AIR


UNKNOWN CONTACT
WILLIAM DUFFICY
3034333180
AIRS/AFS


FACILITY SITE CONTACT
TIM DUFFICY
3034333180
NPDES


COMPLIANCE CONTACT
WILLIAM DUFFICY
3034333180
AIRS/AFS


Query executed on: OCT-14-2025