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Headquarters County of Los Angeles Department of Public Works Environmental Programs Division 900 S. Fremont Avenue Annex Building, 3rd Floor Alhambra, CA 91803-1331 Click here for map to DPW Public Counter: (626) 458-3517 Fax: (626) 458-3569 TDD: (626) 282-7829 Public Counter hours are 7 a.m. to 5 p.m., Monday through Thursday Field Facilities Inspectors are available from 8 a.m. to 9:30 a.m., Monday through Friday, unless otherwise noted

Antelope Valley 335-A East Avenue K-6 Lancaster, CA 93535-4645 (661) 723-4337 1st Wednesday of every month, 8 a.m. to 12 p.m. All other times refer inquiries to Santa Clarita Area Office Lomita Area 24320 S. Narbonne Avenue Lomita, CA 90717-1194 (310) 534-4862 City of Commerce 2535 Commerce Way Commerce, CA 90040-1487 (323) 887-4456 Santa Clarita Area 23757 W. Valencia Boulevard Santa Clarita, CA 91355-2192 (661) 222-2953 San Gabriel Valley 125 S. Baldwin Avenue Arcadia, CA 91007-2652 (626) 574-0962 Whittier Area 13523 E. Telegraph Road Whittier, CA 90605-3437 (562) 906-8426 East Los Angeles Area 4801 E. 3rd Street Los Angeles, CA 90022-1601 (323) 881-7031 Take Customer Service Survey