General Information Party ID Party Name Party Classification Mailing Address Work Phone Email/Website 40367 Sebastopol Road Commingled Plume Privately-Owned Business null null Related Places Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date 256175 Sebastopol Road Commingled Plume Sonoma 1 Service/Commercial Site, NEC Owner 06/17/2005 null Related Parties Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification 458042 Redwood Oil Company Organization In an Agreement With (Passive) 07/30/2013 null Privately-Owned Business 47722 Ultramar, Inc Hanford Organization In an Agreement With 05/08/2008 null Privately-Owned Business 37042 Redwood Coast Petroleum Inc. Organization In an Agreement With 05/08/2008 null Privately-Owned Business 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 384772 Enrollee - WDR 1 1B08137RSON Enrollee under for Sebastopol Road Commingled Plume Historical SLIC R1-2006-0107 07/26/2013 12/26/2016 Discharger 09/09/2008 null 351945 Enrollee 1 1B08137RSON Redwood Oil Co/Sebastopol Rd Comingled Plume Historical WDRNONMUNIPRCS R1-2006-0107 09/26/2008 06/30/2011 Discharger 09/09/2008 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 243225 Clean-up and Abatement Order R1-2003-0010 Enforcement - 1B03141CNSO Sebastopol Road Commingled Plume UST 07/18/2003 Historical Regulatory Measures linked to Related Parties Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status 446306 Redwood Oil Company 401 Certification CERFILLEXC 04/07/2022 Active 434722 Redwood Oil Company 13267 Letter (Non-Enforcement) ENF13267 04/03/2019 Historical 385546 Redwood Coast Petroleum Inc. Individual Monitoring Requirem SLIC 06/14/2012 Historical 376094 Ultramar, Inc Hanford Enrollee WDRNONMUNIPRCS 06/25/2010 Historical 346857 Redwood Oil Company Enrollee NPDNONMUNIPRCS 12/17/2007 Historical 322300 Redwood Coast Petroleum Inc. Enrollee UST 07/23/2007 Historical 261258 Redwood Coast Petroleum Inc. Letter UST 12/30/1997 Historical 259530 Ultramar, Inc Hanford Letter NPDESWW null Historical 205927 Ultramar, Inc Hanford Enrollee NPDNONMUNIPRCS 03/10/1989 Historical 194560 Ultramar, Inc Hanford Enrollee NPDNONMUNIPRCS 11/01/1995 Historical 194468 Ultramar, Inc Hanford Enrollee NPDNONMUNIPRCS 02/18/1993 Historical 193862 Ultramar, Inc Hanford Enrollee NPDNONMUNIPRCS 06/06/2003 Historical 193540 Ultramar, Inc Hanford Enrollee NPDNONMUNIPRCS 10/24/2001 Historical 183148 Ultramar, Inc Hanford Enrollee NPDNONMUNIPRCS 11/30/1993 Historical 183138 Ultramar, Inc Hanford Enrollee NPDNONMUNIPRCS 09/18/1992 Historical 179944 Redwood Coast Petroleum Inc. Enrollee UST 12/22/1995 Historical 179188 Redwood Coast Petroleum Inc. Enrollee NPDNONMUNIPRCS 06/12/2002 Historical 138963 Ultramar, Inc Hanford NPDES Permit NPDESWW 03/10/1989 Historical 135056 Ultramar, Inc Hanford NPDES Permit NPDESWW 07/18/1994 Historical 134475 Ultramar, Inc Hanford NPDES Permit NPDESWW 01/29/1990 Historical 133984 Ultramar, Inc Hanford NPDES Permit NPDESWW 05/21/1984 Historical 131401 Ultramar, Inc Hanford Waiver WDRNONMUNIPRCS 12/18/2002 Historical 131351 Ultramar, Inc Hanford NPDES Permit NPDESWW 02/03/2002 Historical