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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
42506 Sunnyvale City City Agency Po Box 3707 Sunnyvale, CA 94088-3707 None None
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
226861 GC Maint. Yard Santa Clara 2 Facility Owner 09/27/1991 None
259507 Sunnyvale WPCP Santa Clara 2 Wastewater Treatment Facility Owner 12/22/1997 None
259506 Sunnyvale Landfill Santa Clara 2 Land fill Owner 01/17/1978 None
809824 Sunnyvale Water Pollution Control Plant Primary Treatment Facility Project Santa Clara 2 Dredge/Fill Site Owner 10/09/2014 None
889838 Emergency Mockingbird Lane Outfall Repair at Stevens Creek Santa Clara 2 Dredge/Fill Site Owner 08/10/2023 None
631044 Sunnyvale CS Santa Clara 2 Collection_System Owner 04/03/2006 None
259508 Sunnyvale Recycled Water Program Santa Clara 2 Wastewater Treatment Facility Owner 03/20/1991 None
Total Related Places: 7
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
647874 Xin Xu Person Data Submitter 10/29/2024 None None
632275 Winola Cheong Person Employee 08/10/2023 None None
632275 Winola Cheong Person Legally Responsible Official 04/05/2022 None None
373697 Tony Pineda Person Legally Responsible Official 04/12/2007 06/04/2019 None
527512 Steven Schmidt Person Legally Responsible Official 06/24/2011 01/15/2013 None
597192 Stephen Hogg Person Legally Responsible Official 04/26/2019 None None
303225 Sophie James Person Employee 03/08/2006 None None
633317 Rohan WIKRAMANAYAKE Person Legally Responsible Official 06/07/2022 None None
559260 Robert Wilson Person Legally Responsible Official 09/13/2016 None None
527477 Regina Galicki Person Data Submitter 06/23/2011 None None
641001 Ramana Chinnakotla Person Legally Responsible Official 08/10/2023 None None
547912 Nelson Schlater Person Data Submitter 08/01/2014 11/23/2015 None
526401 Melody Tovar Person Legally Responsible Official 02/09/2012 03/29/2012 None
547918 Mary Jeyaprakash Person Data Submitter 08/04/2014 None None
224560 Marvin Rose Person Facility Contact 12/22/1997 None None
224560 Marvin Rose Person Enforcement Contact 03/01/2005 None None
544208 Mario Bautista Person Data Submitter 11/18/2013 None None
537641 Mansour Nasser Person Legally Responsible Official 11/16/2012 None None
74430 Lorrie Gervin Person Legally Responsible Official 04/03/2006 01/15/2013 None
527476 Kristin Kerr Person Data Submitter 06/23/2011 None None
643844 JULIE CHOUN Person Data Submitter 02/23/2024 None None
526403 John Stufflebean Person Legally Responsible Official 11/16/2012 06/04/2019 None
348787 John Addeo Person Employee 10/27/2006 None None
549242 Jerry Barajas Person Data Submitter 01/19/2017 None None
532007 Jerardo Barajas Person Data Submitter 02/22/2012 None None
372064 James Craig Person Legally Responsible Official 04/02/2007 06/04/2019 None
639813 Jaime Hernandez Person Data Submitter 06/01/2023 None None
373701 Eric Tokutomi Person Data Submitter 04/12/2007 None None
606560 Emma Hinojosa Person Data Submitter 02/14/2020 None None
520377 Dan Stevenson Person Legally Responsible Official 11/02/2009 11/04/2014 None
548740 Craig Mobeck Person Legally Responsible Official 10/09/2014 06/04/2019 None
547819 Cameron Kostigen Mumper Person Data Submitter 07/28/2014 None None
531785 Bryan Berdeen Person Legally Responsible Official 02/09/2012 None None
471992 Brendan McCarthy Person Data Submitter 06/05/2008 None None
538979 Bhavani Yerrapotu Person Legally Responsible Official 06/18/2012 03/04/2019 None
639766 Anjelene Manzanares Person Data Submitter 06/01/2023 09/03/2024 None
538309 Alo Kauravlla Person Data Submitter 01/16/2013 None None
527475 Allen Wan Person Data Submitter 06/23/2011 None None
Total Related Parties: 38
  
  
  
  
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?
453886 Enrollee - WDR 2 2 CW453886 Historical CERFILLEXC 2023-0058-DWQ 09/06/2023 12/05/2023 Discharger 08/10/2023 None N
436744 NPDES Permit 2 2 438018001 Active NPDMUNILRG R2-2020-0002 04/01/2020 None Discharger 02/12/2020 None Y
430644 Co-Permitee 2 2 438018001 Active NPDMUNILRG R2-2024-0013 07/01/2019 None Discharger 05/20/2019 None N
398438 401 Certification 2 2 CW398438 Historical CERFILLEXC None 12/09/2015 05/06/2024 Discharger 10/09/2014 None N
398068 NPDES Permit 2 2 438018001 Historical NPDMUNILRG R2-2014-0035 11/01/2014 03/31/2020 Discharger 09/10/2014 None N
389157 Co-Permitee 2 2 438018001 Active NPDMUNILRG R2-2017-0041 01/01/2013 None Discharger 03/01/2008 None Y
378833 Co-Permitee 2 2 438018001 Historical NPDMUNILRG R2-2011-0012 04/01/2011 12/31/2012 Discharger 03/01/2008 None N
369896 NPDES Permit 2 2 438018001 Historical NPDMUNILRG R2-2009-0061 10/01/2009 10/31/2014 Discharger 08/20/2003 None Y
360539 Co-Permitee 2 2 438018001 Historical NPDMUNILRG R2-2007-0077 03/01/2008 12/31/2012 Discharger 03/01/2008 None N
300366 Enrollee 2 2SSO10200 Active SSOMUNILRG 2022-0103-DWQ 08/21/2006 None Discharger 04/11/2006 None N
132939 WDR 2 2 438071001 Active LFNONOPER R2-2004-0030 05/19/2004 None Discharger 05/19/2004 None N
132145 NPDES Permit 2 2 438018001 Historical NPDMUNILRG R2-2003-0079 08/20/2003 None Discharger 08/20/2003 None N
142258 NPDES Permit 2 2 438018001 Historical NPDMUNILRG 98-053 06/17/1998 08/19/2003 Discharger 06/17/1998 None Y
143309 Reclamation Requirements 2 2 438382001 Active REC R2-1994-0069 06/15/1994 None Discharger 06/15/1994 None N
142748 NPDES Permit 2 2 438018001 Historical NPDMUNILRG 93-086 07/21/1993 None Discharger 07/21/1993 None Y
183102 Enrollee 2 2 438404001 Historical NPDNONMUNIPRCS 96-078 09/27/1991 03/22/1999 Discharger 09/01/2005 None N
141906 Reclamation Requirements 2 2 438382001 Historical REC 91-043 03/20/1991 06/15/1994 Discharger 03/20/1991 None N
141599 WDR 2 2 438071001 Historical LNDISP 89-105 06/21/1989 05/18/2004 Discharger 06/21/1989 None Y
142207 NPDES Permit 2 2 438018001 Historical NPDMUNILRG 88-176 12/21/1988 None Discharger 12/21/1988 None Y
145568 NPDES Permit 2 2 438018001 Historical NPDMUNILRG 82-037 06/16/1982 None Discharger 06/16/1982 None Y
146344 WDR 2 2 438071001 Historical LNDISP 78-003 01/17/1978 06/21/1989 Discharger 01/17/1978 None Y
Total Regulatory Measures: 21
  
  
  
  
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.
1145811 06/01/2025 Unauthorized Discharge ?On June 1, 2025, an incident occurred in which float material from the Dissolve Violation None Report Sunnyvale WPCP 436744 R2-2020-0002 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: 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
222961 Clean-up and Abatement Order 94-092 Enforcement - 2 438300N01 UNREGS 08/17/1994 Historical
221703 Clean-up and Abatement Order R2-1999-0007 Enforcement - 2 438300N01 UNREGS 03/16/1999 Historical
221953 Admin Civil Liability R2-2001-0085 Enforcement - 2 438018001 NPDMUNILRG 08/20/2001 Historical
442885 Admin Civil Liability R2-2021-1002 ACL R2-2021-1002 for Sunnyvale City NPDMUNILRG 04/05/2021 Historical
392537 Admin Civil Liability R2-2013-1032 ACL 10/25/2013 for SUNNYVALE CITY NPDMUNILRG 10/25/2013 Historical
355059 Admin Civil Liability SWB-2008-2-0030 Expedited Payment Letter for SUNNYVALE CITY NPDMUNILRG 11/19/2008 Historical
392528 Oral Communication None Oral Com 08/23/2012 for SUNNYVALE CITY NPDMUNILRG 08/23/2012 Historical
392527 Oral Communication None Oral Com 06/14/2013 for SUNNYVALE CITY NPDMUNILRG 06/14/2013 Historical
242599 Admin Civil Liability R2-2003-0025 ACL R2-2003-0025 for SUNNYVALE CITY NPDMUNILRG 07/02/2003 Historical
392564 Oral Communication None Oral Com 01/15/2012 for SUNNYVALE CITY NPDMUNILRG 01/15/2012 Historical
256147 Admin Civil Liability R2-2004-0091 Enforcement - 2 438018001 NPDESWW 03/01/2005 Historical
377471 Admin Civil Liability R2-2011-0096 ACL for Sunnyvale NPDESWW 02/04/2011 Historical
Total Enforcement Actions: 12
  
  
  
  
Expand/Contract Enforcement Actions
Regulatory Measures linked to Related Parties
Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status
132145 John Addeo NPDES Permit NPDMUNILRG 08/20/2003 Historical
453886 Winola Cheong Enrollee - WDR CERFILLEXC 09/06/2023 Historical
453886 Winola Cheong Enrollee - WDR CERFILLEXC 09/06/2023 Historical
369896 John Addeo NPDES Permit NPDMUNILRG 10/01/2009 Historical
Total Regulatory Measures linked to Related Parties: 4
  
  
The current report was generated with data as of: 10/30/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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