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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
S619907 City of Rohnert Park City Agency 130 Avram Rohnert Park, CA 94928 N/A N/A
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
S935230 Trail to Crane Creek Regional Park Sonoma 1 Facility Discharger 08/21/2025 None
S922697 Dowdell Ave Extension Sonoma 1 Facility Discharger 06/12/2024 None
S914668 Trail to Crane Creek Regional Park Sonoma 1 Facility Discharger 07/26/2023 None
S906320 Labath Landing Sonoma 1 Facility Discharger 07/27/2022 None
S899970 Southwest & Commerce Roundabout Sonoma 1 Facility Discharger 11/15/2021 None
S891186 State Farm Dr Commerce Blvd Water Line Replacement Project Sonoma 1 Facility Discharger 02/25/2021 None
S885413 State Farm Drive Rehabilitation Sonoma 1 Facility Discharger 08/28/2020 None
S866010 Sunrise Park Sonoma 1 Facility Discharger 07/31/2018 None
S856062 Water Tank #8 Sonoma 1 Facility Discharger 06/07/2017 None
S905498 Water Tank 9 Sonoma 1 Facility Discharger 06/30/2014 None
S829102 Eastside Trunk Sewer Phase II Sonoma 1 Facility Discharger 04/25/2014 None
S821391 Wilfred Avenue Improvements Sonoma 1 Facility Discharger 02/06/2013 None
S817901 Copeland Creek Bike Path Sonoma 1 Facility Discharger 07/05/2012 None
Total Related Places: 13
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
N/A Mark Hendersen Contact Owner Contact N/A N/A N/A
N/A Mary Grace Pawson Contact Owner Contact N/A N/A N/A
N/A Jason Sampietro Contact Owner Contact N/A N/A N/A
N/A Art da Rosa Contact Owner Contact N/A N/A N/A
N/A Patrick Barnes Contact Owner Contact N/A N/A N/A
N/A Vanessa Garrett Contact Owner Contact N/A N/A N/A
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?
S589442 Construction 1 1 49C409381 Active CONSTW 2009-0009-DWQ 09/10/2025 None Discharger 08/21/2025 None None
S574249 Construction 1 1 49C404557 Active CONSTW 2009-0009-DWQ 07/31/2024 None Discharger 06/12/2024 None None
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.
S894517 09/02/2025 SW - Failure to Obtain Permit Failure to obtain coverage under the 2022 CGP by 09/01/2025. Violation N Internal Report Trail to Crane Creek Regional Park S563882 2009-0009-DWQ Y
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: 1
*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
S459366 Notice of Violation None 1 49C401470 CONSTW 09/05/2025 Active
S416400 1st Annual Report Notice of Non-Compliance None 1 49C366342 CONSTW 09/19/2014 Active
Total Enforcement Actions: 2
  
  
  
  
Expand/Contract Enforcement Actions
Regulatory Measures linked to Related Parties
Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status
Total Regulatory Measures linked to Related Parties: 0
  
  
The current report was generated with data as of: 05/06/2026
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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