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   Party At-A-Glance Report

  
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General Information
Party ID Party Name Party Classification Mailing Address Work Phone Email/Website
400476 SUMCO Phoenix Corporation Privately-Owned Business 19801 North Tatum Boulevard Phoenix, AZ 85050 480-473-6503(+) jeff.bradshaw@sumcousa.com
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
658012 Former 401 National Avenue, Middlefield-Ellis-Whisman (MEW) Study Area Santa Clara 2 Service/Commercial Site, NEC Owner 10/19/2016 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
643536 Rafael Velazquez Person Legally Responsible Official 02/02/2024 None None
464864 Greg Hedger Person Employee 04/01/2008 None None
464856 Geomatrix Consultants (Oakland) Organization Contracted With 04/09/2008 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?
397967 Enrollee - NPDES 2 2 438632002 Historical NPDNONMUNIPRCS R2-2025-0029 08/25/2014 01/12/2026 Discharger 09/05/2014 None N
372729 Enrollee 2 2 438632001 Historical NPDNONMUNIPRCS R2-2009-0059 11/17/2009 08/24/2014 Discharger 09/25/2007 None N
332662 Enrollee 2 2 438632001 Historical NPDNONMUNIPRCS R2-2004-0055 11/29/2004 11/16/2009 Discharger 09/25/2007 None N
Total Regulatory Measures: 3
  
  
  
  
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
463599 Admin Civil Liability R2-2026-1008 EPL for SUMCO Phoenix Corporation NPDNONMUNIPRCS 01/15/2026 Historical
442195 Admin Civil Liability R2-2021-1017 ACL R2-2021-1017 for SUMCO Phoenix Corporation NPDNONMUNIPRCS 06/03/2021 Historical
455219 Admin Civil Liability R2-2024-1013 ACL R2-2024-1013 for SUMCO Phoenix Corporation NPDNONMUNIPRCS 03/05/2024 Historical
Total Enforcement Actions: 3
  
  
  
  
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: 09/24/2026
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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