General Information Party ID Party Name Party Classification Mailing Address Work Phone Email/Website 168540 Antioch City City Agency Po Box 5007 Antioch, CA 94531-5007 925-779-9035(+) null Related Places Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date 883186 West Antioch Creek Silt Removal Project Contra Costa 5S Dredge/Fill Site Owner 09/12/2022 null 859703 City of Antioch Brackish Water Desalination Project Contra Costa 5S Dredge/Fill Site Owner 07/11/2019 null 857472 Antioch Brackish Water Desalination Project - Geotechnical Borings Contra Costa 5S Dredge/Fill Site Owner 04/04/2019 null 769468 Antioch Marina Boat Launching Facility Contra Costa 5S Dredge/Fill Site Owner 08/04/2011 null 714636 Antioch City DPW - Aquatic Pesticides Contra Costa 5S Waterway/Shoreline Site Owner 09/16/2008 null 631493 City Of Antioch CS Contra Costa 5S Collection_System Owner 04/05/2006 null 261531 Somersville Road Over Crossing Contra Costa 5S Dredge/Fill Site None null null 205913 Antioch Contra Costa MS4 Contra Costa 5S MS4 Owner 06/16/2000 null Related Parties Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification 630147 Gonzalo Ramos Person Legally Responsible Official 01/10/2022 null null 621934 Christine Raposo Person Data Submitter 02/18/2021 null null 621933 Gage Dunwell Person Data Submitter 02/18/2021 11/29/2022 null 596494 Scott Buenting Person Legally Responsible Official 04/04/2019 null null 580820 Jon Blank Person Legally Responsible Official 07/18/2018 10/22/2019 null 569410 Kurt DeJanvier Person Data Submitter 11/07/2017 null null 559253 Tyler Bartholomew Person Data Submitter 09/12/2016 null null 559246 Toby Beach Person Legally Responsible Official 05/23/2024 null null 559246 Toby Beach Person Data Submitter 09/12/2016 null null 554042 Alexander Ortega Person Data Submitter 12/22/2015 01/04/2023 null 541698 Sonja Johnsen Person Data Submitter 07/09/2013 null null 533321 Mike Bechtholdt Person Legally Responsible Official 04/23/2012 11/10/2020 null 533320 Tim Coley Person Legally Responsible Official 04/23/2012 04/05/2017 null 528802 Brandon Chalk Person Legally Responsible Official 11/03/2011 02/26/2016 null 528313 Ahmed Abu-Aly Person Legally Responsible Official 08/04/2011 null null 526142 Cleveland Porter Person Legally Responsible Official 03/04/2011 04/05/2017 null 501353 Ron Bernal Person Legally Responsible Official 02/01/2016 04/05/2017 null 440571 Tanya Erck Person Data Submitter 10/10/2007 null null 395717 Michelle Walker Person Data Submitter 08/24/2007 null null 395503 Roger Clarke Person Legally Responsible Official 08/23/2007 09/30/2011 null 370379 Tom Sains Person Legally Responsible Official 03/22/2007 null null 369848 Karen Rios Person Data Submitter 03/20/2007 08/02/2012 null 369301 Phil Barlow Person Data Submitter 03/15/2007 04/23/2012 null 368799 Pat Scott Person Legally Responsible Official 03/12/2007 03/09/2009 null 144019 Phil Hoffmeister Person Enforcement Contact 04/01/2004 null null 144019 Phil Hoffmeister Person Facility Contact 06/16/2000 null null 123248 Phillip Harrington Person Facility Contact 04/23/1992 null null 123248 Phillip Harrington Person Legally Responsible Official 04/05/2006 null null 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 449163 401 Certification 5S 5B07CR00249 401 Cert for Antioch City - West Antioch Creek Silt Removal Project Active CERFILLEXC null 11/18/2022 null Discharger 09/12/2022 null 432962 401 Certification 5S 5B07CR00214 401 Cert for Antioch City - City of Antioch Brackish Water Desalination Project Active CERFILLEXC null 03/27/2020 null Discharger 07/11/2019 null 429795 Enrollee - 401 Certification 5S 5B07CR00212 Enrollee - 401 Certification for Antioch City - Antioch Brackish Water Desalination Project - Geotechnical Borings Historical CERFILLEXC SB17001GN 05/03/2019 09/17/2019 Discharger 04/04/2019 null 411369 Letter 5S null Staff Letter for Antioch City, Antioch Contra Costa MS4 Historical MNSTW1 null 01/06/2017 01/06/2017 Discharger 01/12/2017 null 380696 401 Certification 5S 5B07CR00090 401 Cert 11/04/2009 for Antioch City;Antioch Marina Boat Launching Facility Proj Historical CERFILLEXC null 11/04/2009 11/04/2014 Discharger 08/04/2011 null 340987 Enrollee - NPDES 5S 5B07NP00017 Enrollee under 2013-0002-DWQ for CITY OF ANTIOCH-AQ PESTICIDES (Region 5S) Active NPDNONMUNIPRCS 2013-0002-DWQ 05/05/2014 null Discharger 05/05/2014 null 301611 Enrollee - WDR 5S 5SSO10890 Enrollee of SB SSO WDR for City of Antioch Active SSOMUNILRG 2022-0103-DWQ 03/12/2007 null Discharger 04/20/2006 null 178181 401 Certification 5S 5B07CR00056 WQC 07/21/2005 for Antioch City, Somersville Road Over Crossing Historical CERFILLEXC null 07/21/2005 11/01/2016 Discharger 07/21/2011 null 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 316729 Clean-up and Abatement Order R5-2002-0736-R1 Revised CAO R5-2002-0736-R1 for Antioch City, Antioch Landfill LNDISP 06/20/2006 Historical 306719 Admin Civil Liability R5-2006-0512 ACLC R5-2006-0512 for Antioch City, Antioch Lf LNDISP 07/19/2006 Historical 252417 13267 Letter null 13267 4/1/2004 for City of Antioch Contra Costa MS4 MNSTW1 04/01/2004 Historical 249490 Staff Enforcement Letter null Enforcement - 5B070101N01 LNDISP 05/16/2003 Historical 248712 Staff Enforcement Letter null Enforcement - 5B070101N01 LNDISP 02/01/2002 Historical 248684 Staff Enforcement Letter null Enforcement - 5B070101N01 LNDISP 04/02/2002 Historical 248657 13267 Letter null 13267 Letter 6/17/2002 for Antioch City, Antioch Landfill LNDISP 06/17/2002 Historical 243885 Clean-up and Abatement Order R5-2002-0736 CAO R5-2002-0736 01/02/2003 for Antioch Landfill LNDISP 01/02/2003 Historical 243877 Staff Enforcement Letter null Enforcement - 5B070101N01 LNDISP 03/18/2003 Historical Regulatory Measures linked to Related Parties Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status