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Contact EPA Pacific Southwest

Pacific Southwest, Region 9

Serving: Arizona, California, Hawaii, Nevada, Pacific Islands, Tribal Nations

Pretreatment Program

Pretreatment Quick Finder
NPDES Home Pretreatment Home Compliance & Enforcement Discharger Information Awards Local Limits Program Implementation Contacts


We welcome your inquiry about the pretreatment program.

Amelia Whitson (whitson.amelia@epa.gov)
(415) 972-3216

Jim Polek (polek.jim@epa.gov)
(415) 972-3185

NPDES Permits Office (WTR-5)
U.S. Environmental Protection Agency, Region 9
75 Hawthorne Street
San Francisco
California, 94105
Fax: (415) 947-3549

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