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California Integrated Water Quality System Project (CIWQS)
   Party At-A-Glance Report

  
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General Information
Party ID Party Name Party Classification Mailing Address Work Phone Email/Website
40367 Sebastopol Road Commingled Plume Privately-Owned Business None None
  
  
  
  
Expand/Contract Related Places
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 None
Total Related Places: 1
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
47722 Ultramar, Inc Hanford Organization In an Agreement With 05/08/2008 None Privately-Owned Business
458042 Redwood Oil Company Organization In an Agreement With (Passive) 07/30/2013 None Privately-Owned Business
37042 Redwood Coast Petroleum Inc. Organization In an Agreement With 05/08/2008 None Privately-Owned Business
Total Related Parties: 3
  
  
  
  
Expand/Contract Regulatory Measures
Regulatory Measures (non-enforcement)
Reg. Measure ID Regulatory Measure Type Region WDID Status Program Order No. RM Effective Date RM Termination Date Relationship Relationship Start Date Relationship End Date Amended?
384772 Enrollee - WDR 1 1B08137RSON Historical SLIC R1-2006-0107 07/26/2013 12/26/2016 Discharger 09/09/2008 None N
351945 Enrollee 1 1B08137RSON Historical WDRNONMUNIPRCS R1-2006-0107 09/26/2008 06/30/2011 Discharger 09/09/2008 None N
Total Regulatory Measures: 2
  
  
  
  
Expand/Contract Violations
Violations within the past 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.
Report defaults to display violations within the last year. Click here to see last five years of violations. Refer to the Interactive Violation Report for more data.
Total Violations: 0
*Click the "(+/-) Violation Description" link to expand and contract the violation description.
  
  
  
  
Expand/Contract Enforcement Actions
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
Total Enforcement Actions: 1
  
  
  
  
Expand/Contract Enforcement Actions
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 None 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
Total Regulatory Measures linked to Related Parties: 23
  
  
The current report was generated with data as of: 10/31/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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