General Information Party ID Party Name Party Classification Mailing Address Work Phone Email/Website 641040 Blake Brown null 5019 Imhoff Place Martinez, CA 94553 925-229-7237 bbrown@centralsan.org Related Places Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date Related Parties Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification 220151 Central Contra Costa Sanitary District Organization Legally Responsible Official 08/30/2023 null Special District Regulatory Measures(non-enforcement) Reg. Measure ID Regulatory Measure Type Region WDID Title Status Program Order No. RM Effective Date RM Termination Date Relationship Relationship Start Date Relationship End Date Violations within the past calendar year Violation ID Occurrence Date Violation Type Violation Description Violation Status Priority Source Facility Name Violated Reg. Meas. ID Violated Reg. Meas. Order No. Linked To Enf. Enforcement Actions Enforcement ID Enforcement Type Enf. Order No. Title Program Effective Date Status Regulatory Measures linked to Related Parties Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status 141633 Central Contra Costa Sanitary District NPDES Permit NPDMUNILRG 11/15/1989 Historical 142049 Central Contra Costa Sanitary District WDR WDRMUNIOTH 01/15/1992 Historical 142146 Central Contra Costa Sanitary District NPDES Permit NPDMUNILRG 05/24/1995 Historical 142596 Central Contra Costa Sanitary District Reclamation Requirements REC 09/18/1991 Historical 145234 Central Contra Costa Sanitary District Reclamation Requirements REC 03/20/1979 Historical 145724 Central Contra Costa Sanitary District WDR WDRMUNIOTH 11/17/1966 Historical 146024 Central Contra Costa Sanitary District NPDES Permit NPDMUNILRG 10/17/1984 Historical 148418 Central Contra Costa Sanitary District NPDES Permit NPDMUNILRG 06/19/2001 Historical 299822 Central Contra Costa Sanitary District Enrollee SSOMUNILRG 10/25/2006 Active 319679 Central Contra Costa Sanitary District NPDES Permit NPDMUNILRG 04/01/2007 Historical 360491 Central Contra Costa Sanitary District Co-Permitee NPDMUNILRG 03/01/2008 Historical 368741 Central Contra Costa Sanitary District Enrollee - WRR REC 05/09/1997 Historical 378704 Central Contra Costa Sanitary District Co-Permitee NPDMUNILRG 04/01/2011 Historical 383409 Central Contra Costa Sanitary District NPDES Permit NPDMUNILRG 04/01/2012 Historical 383483 Central Contra Costa Sanitary District 401 Certification CERFILLEXC 04/28/2010 Historical 389079 Central Contra Costa Sanitary District Co-Permitee NPDMUNILRG 01/01/2013 Active 390531 Central Contra Costa Sanitary District 401 Certification CERFILLEXC 07/12/2012 Historical 412711 Central Contra Costa Sanitary District NPDES Permit NPDMUNILRG 06/01/2017 Historical 430610 Central Contra Costa Sanitary District Co-Permitee NPDMUNILRG 07/01/2019 Active 436289 Central Contra Costa Sanitary District 401 Certification CERFILLEXC 06/24/2020 Historical 438963 Central Contra Costa Sanitary District Enrollee - 401 Certification CERFILLEXC 01/07/2021 Active 445274 Central Contra Costa Sanitary District Enrollee - WRR REC 04/08/2020 Active 445536 Central Contra Costa Sanitary District 401 Certification CERFILLEXC 02/09/2022 Historical 448059 Central Contra Costa Sanitary District NPDES Permit NPDMUNILRG 08/01/2022 Active 459587 Central Contra Costa Sanitary District 401 Certification CERFILLEXC 05/28/2025 Active