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Contact EPA’s Pacific Southwest (Region 9)

EPA’s Pacific Southwest (Region 9) implements and enforces federal environmental laws in Arizona, California, Hawaii, Nevada, the Pacific Islands, and 148 Tribal Nations.

Additional Resources
  • About the Pacific Southwest Region
  • Pacific Southwest Media Center
  • Press and Media Contacts
  • Visiting EPA Pacific Southwest
On this page:
  • Main Office
  • Other Office Locations
  • Contacts, Hotlines, Hours of Operation
  • Send Us a Comment or Question

Main Office

US EPA Pacific Southwest, Region 9
75 Hawthorne St.
San Francisco, CA 94105
Toll Free: (866)-EPA-WEST
Direct: (415) 947-8000

Other Pacific Southwest Offices

Southern California Field Office

600 Wilshire Blvd., Suite 940
Los Angeles, CA 90017
(213) 244-1800

San Diego Border Office

880 Front St., Suite 3210
San Diego, CA 92101
(619) 235-4765

Pacific Islands Office

300 Ala Moana Blvd., Room 5-152
Honolulu, HI 96850
(808) 541-2710

Flagstaff Field Office

2255 N Gemini Rd.
Flagstaff, AZ 86001
(866)-EPA-WEST

Contacts, Hotlines, Hours of Operation

EPA Pacific Southwest (Region 9) Contacts, Hotlines, Hours of Operation
Topic Contact
Obtain a RCRA Identification Number
  • RCRA Contacts in EPA's Pacific Southwest (Region 9)
  • State and Regional EPA Contacts
Environmental Information Center (EIC)
Responds to public inquiries on environmental issues or concerns.
Monday-Friday (except federal holidays)
9:00 a.m. - 4:00 p.m. PT

Toll Free: (866)-EPA-WEST
Direct: (415) 947-8000
r9.info@epa.gov

Library
Monday-Friday (except federal holidays)
9:00 a.m. - 4:00 p.m. PT
Library Reference Desk
(415) 947-4406
library-reg9@epa.gov
Job Information Line (recorded message) (415) 947-8017
Public Affairs /Media Relations Press Contacts
Freedom of Information Act (FOIA) Requests (415) 947-4251
Pacific Islands Contact Office (808) 541-2710
San Diego Border Office (619) 235-4765
Southern California Field Office (213) 244-1800
Flagstaff Field Office (415) 654-2512
24-Hour Environmental Emergencies (800) 300-2193
Non-Emergency Environmental Complaints Report Environmental Violations
Office of Criminal Investigation
...to report environmental crimes or suspicious activities
(415) 947-8713
Asbestos Questions (415) 947-8704
Questions About Lead (415) 947-4164
Lead-Based Paint Tips and Complaints (415) 972-3986
Superfund/RCRA Community Relations (800) 231-3075

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About EPA

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Contact EPA
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Last updated on May 28, 2025
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