FRS Facility Detail Report


MASON WEST, INC

EPA Registry Id: 110041522288
1601 E MIRALOMA AVE
PLACENTIA, CA 92870


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:
RESOURCE CONSERVATION AND RECOVERY ACT INFORMATION SYSTEM
MASON WEST INC CAL000338712 OTHER HAZARDOUS WASTE ACTIVITIES (Y) RCRAINFO

EMISSION INVENTORY SYSTEM (EIS)
MASON WEST, INC 13500511 AIR EMISSIONS CLASSIFICATION UNKNOWN EIS 08/26/2021
CALIFORNIA - ENVIROVIEW
MASON WEST INC 354697 STATE MASTER CA-ENVIROVIEW
CERS-10564465
HAZARDOUS WASTE PROGRAM
CERS-10564465
RMP REPORTER

Additional EPA Reports:  

MyEnvironment  Enforcement and Compliance  Facility Coordinates Viewer  Watershed Report

Standard Industrial Classification Codes (SIC)

Data Source SIC Code Description Primary
CA-ENVIROVIEW
3441
FABRICATED STRUCTURAL METAL

Facility Codes and Flags

EPA Region: 09
Duns Number:
Congressional District Number: 39
Legislative District Number:
HUC Code/Watershed: 18070106 / SAN GABRIEL
US Mexico Border Indicator: NO
Federal Facility: NO
Tribal Land: NO

Alternative Names

No Alternative Names returned.

Organizations

Affiliation Type Name DUNS Number Information System Mailing Address
OWNER
MASON WEST INC
RCRAINFO
View
OWNER
MASON WESTNA INC.
CA-ENVIROVIEW
View
OPERATOR
ALFREDO MARTINEZ
RCRAINFO
View

National Industry Classification System Codes (NAICS)

Data Source NAICS Code Description Primary
RCRAINFO 332312 FABRICATED STRUCTURAL METAL MANUFACTURING.
CA-ENVIROVIEW 332312 FABRICATED STRUCTURAL METAL MANUFACTURING.
EIS 423830 INDUSTRIAL MACHINERY AND EQUIPMENT MERCHANT WHOLESALERS.

Facility Mailing Addresses

Affiliation Type Delivery Point City Name State Postal Code Information System
OPERATOR 1601 E MIRALOMA AVE PLACENTIA CA 92870-6623 RCRAINFO
PROPERTY OWNER 1601 MIRALOMA AV PLACENTIA 92870 CA-ENVIROVIEW
ENVIRONMENTAL CONTACT 1601 MIRALOMA AV PLACENTIA 92870 CA-ENVIROVIEW
OWNER 1601 MIRALOMA AV PLACENTIA 92870 CA-ENVIROVIEW
FACILITY MAILING ADDRESS 1601 MIRALOMA AV PLACENTIA CA 92870 CA-ENVIROVIEW
OWNER 1601 E MIRALOMA AVE PLACENTIA CA 92870-6623 RCRAINFO
FACILITY MAILING ADDRESS 1601 E MIRALOMA AVE PLACENTIA CA 92870-6623 RCRAINFO
REGULATORY CONTACT 1601 E MIRALOMA AVE PLACENTIA CA 92870-6623 RCRAINFO

Contacts

Affiliation Type Full Name Office Phone Information System Mailing Address
ENVIRONMENTAL CONTACT
RICHARD GRAY
(714) 630-0701
CA-ENVIROVIEW
View
PROPERTY OWNER
MIRALOMA INVESTORS
(714) 345-2522
CA-ENVIROVIEW
View
REGULATORY CONTACT
ALFREDO MARTINEZ
714-630-0701
RCRAINFO
View

Query executed on: OCT-15-2025