FRS Facility Detail Report


FRONTIER CALIFORNIA INC WALNUT CO

EPA Registry Id: 110055748259
20747 VALLEY BLVD
WALNUT, CA 91789


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:
EMISSION INVENTORY SYSTEM (EIS)
FRONTIER CALIFORNIA INC WALNUT CO 22629811 AIR EMISSIONS CLASSIFICATION UNKNOWN EIS 03/28/2025
CALIFORNIA - ENVIROVIEW
VERIZON CALIFORNIA: WALNUT CO 80823 STATE MASTER CA-ENVIROVIEW
CERS-10141969
RMP REPORTER
CERS-10141969
UNDERGROUND STORAGE TANK PROGRAM
CA-CALIFORNIA ENVIRONMENTAL REPORTING SYSTEM
VERIZON CALIFORNIA: WALNUT CO 10141969 STATE MASTER CA-CERS
CERS2-10141969-02
EPCRA

Additional EPA Reports:  

MyEnvironment  Facility Coordinates Viewer  Watershed Report

Standard Industrial Classification Codes (SIC)

Data Source SIC Code Description Primary
CA-CERS
4813
TELEPHONE COMMUNICATIONS, EXCEPT RADIOTELEPHONE

CA-ENVIROVIEW
4813
TELEPHONE COMMUNICATIONS, EXCEPT RADIOTELEPHONE

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

Alternative Name Source of Data
VERIZON CALIFORNIA: WALNUT CO CA-CERS

Organizations

Affiliation Type Name DUNS Number Information System Mailing Address
OPERATOR
VERIZON CALIFORNIA INC
CA-ENVIROVIEW
View
OWNER
VERIZON CALIFORNIA INC
CA-ENVIROVIEW
View

National Industry Classification System Codes (NAICS)

Data Source NAICS Code Description Primary
CA-CERS 517110 WIRED TELECOMMUNICATIONS CARRIERS.
CA-ENVIROVIEW 517110 WIRED TELECOMMUNICATIONS CARRIERS.
EIS 813110 RELIGIOUS ORGANIZATIONS.

Facility Mailing Addresses

Affiliation Type Delivery Point City Name State Postal Code Information System
FACILITY MAILING ADDRESS 20747 VALLEY BLVD WALNUT CA 91789 CA-CERS
OWNER 280 S. LOCUST STREET POMONA 91766 CA-ENVIROVIEW
OPERATOR 280 S. LOCUST STREET POMONA 91766 CA-ENVIROVIEW
OWNER 2400 N. GLENVILLE DR. RICHARDSON TX 75082 CA-CERS
ENVIRONMENTAL CONTACT 280 S. LOCUST STREET POMONA 91766 CA-ENVIROVIEW
ENVIRONMENTAL CONTACT 2400 N. GLENVILLE DR. RICHARDSON TX 75082 CA-CERS
FACILITY MAILING ADDRESS 280 S. LOCUST STREET POMONA CA 91766 CA-ENVIROVIEW
OPERATOR 2400 N. GLENVILLE DR RICHARDSON TX 75082 CA-CERS
PO NAME 280 S. LOCUST STREET POMONA 91766 CA-ENVIROVIEW

Contacts

Affiliation Type Full Name Office Phone Information System Mailing Address
OPERATOR
VERIZON CALIFORNIA, INC.
9727295143
CA-CERS
View
ENVIRONMENTAL CONTACT
JASON WELLER
9727295143
CA-CERS
View
UNKNOWN CONTACT
KEN AMMERMAN
8003869639
CA-CERS


PO NAME
VERIZON CALIFORNIA INC.
(909) 620-5962
CA-ENVIROVIEW
View
ENVIRONMENTAL CONTACT
MASOOD CHOUDHURY
909-620-5962
CA-ENVIROVIEW
View
OWNER
VERIZON CALIFORNIA, INC.
9727295143
CA-CERS
View
UNKNOWN CONTACT
MASOOD CHOUDHURY
8003869639
CA-CERS


Query executed on: OCT-15-2025