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STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ <br />ATTACHMENT F — REGIONAL WATER QUALITY CONTROL BOARD CONTACT <br />INFORMATION <br />This Attachment provides a map, list of counties, and contact information to assist the Enrollee <br />in identifying the corresponding Regional Water Quality Control Board office, for all Regional <br />Water Board notification requirements in this General Order. <br />Region 1 -- North Coast Regional Water Quality Control Board: <br />Del Norte, Glenn, Humboldt, Lake, Marin, Mendocino, Modoc, Siskiyou, Sonoma, and Trinity <br />counties. <br />RB1 Spill Reporting@waterboards.ca.gov or (707) 576-2220 <br />Region 2 -- San Francisco Bay Regional Water Quality Control Board: <br />Alameda, Contra Costa, San Francisco, Santa Clara (Northern most part of Morgan Hill), San <br />Mateo, Marin, Sonoma, Napa, Solano counties. <br />RB2SpillReports@waterboards.ca.gov or (510) 622-2369 <br />Region 3 -- Central Coast Regional Water Quality Control Board: <br />Santa Clara (most of Morgan Hill), San Mateo (Southern portion), Santa Cruz, San Benito, <br />Monterey, Kern (small portions), San Luis Obispo, Santa Barbara, Ventura (Northern portion) <br />counties. <br />CentralCoast@waterboards.ca.gov or (805) 549-3147 <br />Region 4 -- Los Angeles Regional Water Quality Control Board: <br />Los Angeles, Ventura counties (small portions of Kern and Santa Barbara counties). <br />rb4-ssswdr@waterboards.ca.gov or (213) 576-6600 <br />ATTACHMENT F — REGIONAL WATER QUALITY CONTROL December 6, 2022 <br />BOARD CONTACT INFORMATION <br />F - 1 <br />