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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
562591 Erika Guerra 925-365-0004 erika.guerra@marinmarietta.com
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
Total Related Places: 0
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
650394 Martin Marietta Marine Operations Organization Legally Responsible Official 07/22/2025 None Privately-Owned Business
23863 Lehigh Southwest Cement Company, Permanente Facility Organization Legally Responsible Official 08/01/2019 01/18/2022 Privately-Owned Business
147815 Hanson Aggregates Mid Pacific Organization Legally Responsible Official 07/28/2022 None Privately-Owned Business
23863 Lehigh Southwest Cement Company, Permanente Facility Organization Data Submitter 02/22/2017 01/18/2022 Privately-Owned Business
650394 Martin Marietta Marine Operations Organization Legally Responsible Official 04/14/2025 None Privately-Owned Business
600699 Lehigh Hanson, Inc. Organization Legally Responsible Official 05/29/2020 01/18/2022 Privately-Owned Business
Total Related Parties: 6
  
  
  
  
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?
Total Regulatory Measures: 0
  
  
  
  
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
Total Enforcement Actions: 0
  
  
  
  
Expand/Contract Enforcement Actions
Regulatory Measures linked to Related Parties
Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status
141866 Hanson Aggregates Mid Pacific NPDES Permit NPDMINING 11/14/1990 Historical
147630 Hanson Aggregates Mid Pacific NPDES Permit NPDMINING 07/18/1997 Historical
179983 Hanson Aggregates Mid Pacific Enrollee NPDNONMUNIPRCS 10/17/2006 Historical
148693 Hanson Aggregates Mid Pacific NPDES Permit NPDMINING 10/16/2001 Historical
145932 Hanson Aggregates Mid Pacific NPDES Permit NPDMINING 01/18/1984 Historical
350123 Hanson Aggregates Mid Pacific Enrollee NPDNONMUNIPRCS 07/01/2008 Historical
412426 Hanson Aggregates Mid Pacific Enrollee - NPDES NPDINDSML 03/22/2017 Historical
308658 Hanson Aggregates Mid Pacific Enrollee NPDNONMUNIPRCS 06/19/2002 Historical
402858 Hanson Aggregates Mid Pacific Enrollee - NPDES NPDNONMUNIPRCS 09/15/2015 Active
184906 Hanson Aggregates Mid Pacific Enrollee - WDR CERDREDGE 10/03/1995 Historical
402859 Hanson Aggregates Mid Pacific Enrollee - NPDES NPDNONMUNIPRCS 09/15/2015 Active
259535 Hanson Aggregates Mid Pacific Letter NPDMINING None Historical
461879 Martin Marietta Marine Operations 401 Certification CERDREDGE 08/21/2025 Active
461414 Martin Marietta Marine Operations 401 Certification CERFILLEXC 08/20/2025 Active
461879 Martin Marietta Marine Operations 401 Certification CERDREDGE 08/21/2025 Active
461414 Martin Marietta Marine Operations 401 Certification CERFILLEXC 08/20/2025 Active
Total Regulatory Measures linked to Related Parties: 16
  
  
The current report was generated with data as of: 10/24/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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