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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
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
464864 Greg Hedger Person Employee 04/01/2008 None None
643536 Rafael Velazquez Person Legally Responsible Official 02/02/2024 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?
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
397967 Enrollee - NPDES 2 2 438632002 Active NPDNONMUNIPRCS R2-2017-0048 08/25/2014 None Discharger 09/05/2014 None N
Total Regulatory Measures: 3
  
  
  
  
Expand/Contract Violations
Violations within the past five years
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.
1097380 10/28/2021 Deficient Monitoring During routine monthly monitoring sampling on October 28, 2021, the Discharger d Violation N Report Former 401 National Avenue, Middlefield-Ellis-Whisman (MEW) Study Area 397967 R2-2017-0048 N
1109549 05/31/2022 CAT2 Copper, Total Recoverable Monthly Average limit is 7 ug/L and reported value was Violation N Report Former 401 National Avenue, Middlefield-Ellis-Whisman (MEW) Study Area 397967 R2-2017-0048 Y
1109550 05/03/2022 CAT2 Copper, Total Recoverable Maximum Daily (MDEL) limit is 14 ug/L and reported val Violation None Report Former 401 National Avenue, Middlefield-Ellis-Whisman (MEW) Study Area 397967 R2-2017-0048 Y
1109551 05/16/2022 Deficient Reporting The discharger failed to report a copper effluent limit violation due to a trans Violation N Report Former 401 National Avenue, Middlefield-Ellis-Whisman (MEW) Study Area 397967 R2-2017-0048 N
1097381 10/28/2021 Failure to Notify During routine monthly monitoring sampling on October 28, 2021, the Discharger d Violation N Report Former 401 National Avenue, Middlefield-Ellis-Whisman (MEW) Study Area 397967 R2-2017-0048 N
Report currently showing last five years of violations. Click here to return to viewing one year of violations. Refer to the Interactive Violation Report for more data.
Total Violations: 5
*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
455219 Admin Civil Liability R2-2024-1013 ACL R2-2024-1013 for SUMCO Phoenix Corporation NPDNONMUNIPRCS 03/05/2024 Historical
442195 Admin Civil Liability R2-2021-1017 ACL R2-2021-1017 for SUMCO Phoenix Corporation NPDNONMUNIPRCS 06/03/2021 Historical
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: 07/17/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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