Welcome to California
California Home
Welcome to California - images of Golden Gate Bridge, ocean sunset, waterfall, flowers, and city skyline California Home Welcome to the California Environmental Protection Agency
California Integrated Water Quality System Project (CIWQS)
   Party At-A-Glance Report

  
   [VIEW PRINTER FRIENDLY VERSION] [EXPORT THIS REPORT TO EXCEL]

  
  
  
  
  
General Information
Party ID Party Name Party Classification Mailing Address Work Phone Email/Website
S443708 Gonsalves & Santucci Inc Privately-Owned Business 5141 Commercial Cl Concord, CA 94520 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
S916920 Nut Tree Business Park Warehouse Solano 5S Facility Discharger 10/17/2023 None
S935710 Lands of Conco Properties Phase I and II Site Improvements Contra Costa 2 Facility Discharger 08/27/2025 None
S878327 Reliable Trucking Yolo 5S Facility Discharger 01/09/2020 None
S718429 2510 Dean Lesher Dr Contra Costa 2 Facility Discharger 05/30/2008 None
S825680 Reliable Trucking Monterey 5S Facility Discharger 09/10/2013 None
S852635 5129 Commercial Circle Contra Costa 2 Facility Discharger 01/23/2017 None
S721244 Conco Building G Contra Costa 2 Facility Discharger 07/02/2008 None
S911117 2500A Bates Ave Contra Costa 2 Facility Discharger 02/17/2023 None
S901159 Eubanks Drive Warehouse Solano 5S Facility Discharger 01/07/2022 None
S901217 Eubanks Drive Warehouse Solano 5S Facility Discharger 01/11/2022 None
S875767 Conco Interim Stockpile Project Contra Costa 2 Facility Discharger 09/12/2019 None
Total Related Places: 11
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
N/A David Koffman Contact Owner Contact N/A N/A N/A
N/A Darren Ratekin Contact Owner Contact N/A N/A N/A
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?
S567027 Construction 5S 5S48C402571 Active CONSTW 2009-0009-DWQ 11/20/2023 None Discharger 10/17/2023 None None
S589977 Construction 2 2 07C409090 Active CONSTW 2009-0009-DWQ 09/03/2025 None Discharger 08/27/2025 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.
S893884 09/02/2025 SW - Failure to Obtain Permit Failure to obtain coverage under the 2022 CGP by 09/01/2025. Violation N Internal Report Conco Interim Stockpile Project S512860 2009-0009-DWQ Y
S897876 09/01/2025 SW - Late Report Failure to submit the 2024-2025 Annual Report by 09/01/2025 Violation N Report Nut Tree Business Park Warehouse S567027 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: 2
*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
S468910 1st Annual Report Notice of Non-Compliance None 5S48C402571 CONSTW 02/10/2026 Active
S462725 Notice of Violation None 5S48C402571 CONSTW 09/05/2025 Active
S458733 Notice of Violation None 2 07C388497 CONSTW 09/05/2025 Active
S415345 1st Annual Report Notice of Non-Compliance None 2 07C352505 CONSTW 01/29/2014 Historical
S415343 1st Annual Report Notice of Non-Compliance None 2 07C352111 CONSTW 01/29/2014 Historical
Total Enforcement Actions: 5
  
  
  
  
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: 05/11/2026
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
Back to Main Page  |  Back to Top of Page

Conditions of Use | Privacy Policy
Copyright © 2024 State of California

The Board is one of six boards, departments, and offices under
the umbrella of the California Environmental Protection Agency.
Cal/EPA | ARB | DPR | DTSC | OEHHA | SWRCB