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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
297266 David LaCaro 1000 Spring Street Paso Robles, CA 93446 None dlacaro@prcity.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
536526 City of Paso Robles Organization Legally Responsible Official 05/19/2021 None City Agency
137759 Central Coast Regional Water Quality Control Board Organization Employee 01/30/2006 10/03/2019 Waterboard
Total Related Parties: 2
  
  
  
  
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.
1145891 03/27/2025 CAT1 Total Dissolved Solids (TDS) Instantaneous Maximum limit is 900.0 mg/L and reported value was 3800.0 mg/L. Violation None Report Edna Valley Vineyard Winery 141453 00-066 N
1145884 03/27/2025 CAT1 Chloride Instantaneous Maximum limit is 100.0 mg/L and reported value was 270.0 mg/L. Violation None Report Edna Valley Vineyard Winery 141453 00-066 N
1145876 03/27/2025 CAT1 Sulfate, Total (as SO4) Instantaneous Maximum limit is 100.0 mg/L and reported value was 850.0 mg/L. Violation None Report Edna Valley Vineyard Winery 141453 00-066 N
1145892 05/01/2025 CAT1 Total Dissolved Solids (TDS) Instantaneous Maximum limit is 900.0 mg/L and reported value was 4100.0 mg/L. Violation None Report Edna Valley Vineyard Winery 141453 00-066 N
1145887 05/01/2025 CAT1 Chloride Instantaneous Maximum limit is 100.0 mg/L and reported value was 280.0 mg/L. Violation None Report Edna Valley Vineyard Winery 141453 00-066 N
1145890 05/01/2025 CAT1 Sodium, Total Instantaneous Maximum limit is 50.0 mg/L and reported value was 130.0 mg/L. Violation None Report Edna Valley Vineyard Winery 141453 00-066 N
1145872 03/27/2025 CAT1 Boron, Total Instantaneous Maximum limit is 0.2 mg/L and reported value was 0.34 mg/L. Violation None Report Edna Valley Vineyard Winery 141453 00-066 N
1145889 03/27/2025 CAT1 Sodium, Total Instantaneous Maximum limit is 50.0 mg/L and reported value was 440.0 mg/L. Violation None Report Edna Valley Vineyard Winery 141453 00-066 N
1145880 05/01/2025 CAT1 Sulfate, Total (as SO4) Instantaneous Maximum limit is 100.0 mg/L and reported value was 940.0 mg/L. Violation None Report Edna Valley Vineyard Winery 141453 00-066 N
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: 9
*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
459813 City of Paso Robles 401 Certification CERFILLEXC 07/17/2025 Active
456862 City of Paso Robles 401 Certification CERFILLEXC 05/07/2025 Active
456576 City of Paso Robles Enrollee - 401 Certification CERREST 04/21/2025 Active
458343 City of Paso Robles 401 Certification CERFILLEXC 01/29/2025 Active
454642 City of Paso Robles Enrollee - 401 Certification CERFILLEXC 10/10/2023 Historical
450691 City of Paso Robles Enrollee - 401 Certification CERFILLEXC 12/20/2022 Historical
443371 City of Paso Robles WDR CERFILLEXC 04/16/2021 Active
431450 City of Paso Robles 401 Certification CERFILLEXC 01/25/2021 Active
423338 City of Paso Robles 401 Certification CERFILLEXC 09/28/2018 Historical
421610 City of Paso Robles Enrollee - 401 Certification CERFILLEXC 06/28/2018 Historical
410471 City of Paso Robles Enrollee - 401 Certification CERFILLEXC 11/28/2016 Historical
412338 City of Paso Robles Enrollee - NPDES NPDNONMUNIPRCS 07/01/2016 Active
387256 City of Paso Robles 401 Certification CERFILLEXC 11/13/2012 Historical
Total Regulatory Measures linked to Related Parties: 13
  
  
The current report was generated with data as of: 10/10/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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