PQAO Liaisons Quality AssuranceAboutResources Data Corrective Action ProcessPQAO LiaisonsPerformance AuditsQM Document RepositoryQuality Assurance ManualStandards LaboratoryTechnical System AuditsTraining Resources Subscribe Contact Quality Assurance Program Email Email qa@arb.ca.gov Phone (916) 445-3742 Aman Bains (279) 208-7162 Antelope Valley AQMDMendocino County AQMDNorth Coast Unified AQMD San Joaquin Valley APCDShasta County AQMDVentura County APCDYolo/Solano AQMDGrace Tuazon (279) 208-7464CARBGreat Basin Unified APCDLake County AQMDMojave Desert AQMDNorthern Sonoma County APCDPlacer County APCDSanta Barbara County APCDTehama County APCDKyle Vagadori (279) 208-7814Eastern Kern APCDImperial County APCDMonterey Bay ARDNorthern Sierra AQMDSacramento Metro AQMDSan Luis Obispo County APCDSiskiyou County APCD