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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
S605498 Williams Homes Inc Privately-Owned Business 24911 Avenue Stanford Suite 101 Santa Clarita, CA 91355 661-222-9207 110 lwilliams@williamshomes.com
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
S878959 Tract 5984 Ventura 4 Facility Discharger 01/28/2020 None
S905474 Lancaster Apartments Los Angeles 6B Facility Discharger 06/22/2022 None
S913103 Point Happy Riverside 7 Facility Discharger 05/23/2023 None
S905099 Collins Drive Placer 5S Facility Discharger 06/08/2022 None
S901644 Magnolia Village Placer 5S Facility Discharger 01/26/2022 None
S934340 Creekside Ventura 4 Facility Discharger 08/06/2025 None
S901720 Campanile Riverside 7 Facility Discharger 01/28/2022 None
S893925 Tract 5683 Ventura 4 Facility Discharger 05/17/2021 None
S935482 Palo Verde San Bernardino 7 Facility Discharger 08/25/2025 None
S935841 Valley Villas Los Angeles 4 Facility Discharger 08/28/2025 None
S934167 Finch Ranch Ventura 4 Facility Discharger 08/04/2025 None
S835848 Tract 73418 Los Angeles 4 Facility Discharger 06/04/2015 None
S934586 Finch Ranch Ventura 4 Facility Discharger 08/12/2025 None
S606792 Solstice South Los Angeles 4 Facility Discharger 11/07/2005 None
S802544 Hidden Creek San Bernardino 8 Facility Discharger 03/25/2010 None
S935068 Magnolia Village Placer 5S Facility Discharger 08/19/2025 None
S900585 Tract 60259 Park Place Los Angeles 4 Facility Discharger 12/10/2021 None
S905696 Valley Villas Los Angeles 4 Facility Discharger 06/30/2022 None
S901625 Plaza Del Amo Los Angeles 4 Facility Discharger 01/26/2022 None
S744435 Monterey Heights Lots 1 17 Tract 51978 Los Angeles 4 Facility Discharger 09/09/2009 None
S851456 Foothill II Los Angeles 4 Facility Discharger 11/04/2016 None
S902838 Palo Verde Tract 32279 and 33336 Riverside 7 Facility Discharger 03/09/2022 None
S917096 Point Happy Riverside 7 Facility Discharger 10/20/2023 None
S802327 Tract 18677 Bella Terra San Bernardino 8 Facility Discharger 03/08/2010 None
S809845 Fairways Residential Los Angeles 4 Facility Discharger 05/12/2011 None
S817648 WH Fillmore 34 Ventura 4 Facility Discharger 06/20/2012 None
S890177 Fillmore Tract 5422 Creekside Ventura 4 Facility Discharger 01/27/2021 None
S863874 Williams Homes Office Building Los Angeles 4 Facility Discharger 05/04/2018 None
S887692 Tract 5655 Lots 2 through 4 Ventura 4 Facility Discharger 11/09/2020 None
S862779 Rosewood Ventura 4 Facility Discharger 03/29/2018 None
Total Related Places: 30
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
N/A Martin Mendoza Contact Owner Contact N/A N/A N/A
N/A Keith Herren Contact Owner Contact N/A N/A N/A
N/A Mike von Quilich Contact Owner Contact N/A N/A N/A
N/A Keith Herren Contact Owner Contact N/A N/A N/A
N/A Bob Barjam Contact Owner Contact N/A N/A N/A
N/A Kelly Brown Contact Owner Contact N/A N/A N/A
N/A Lance Williams Contact Owner Contact N/A N/A N/A
N/A Lance Williams Contact Owner Contact N/A N/A N/A
N/A Steven Gonzalez Contact Owner Contact N/A N/A N/A
Total Related Parties: 9
  
  
  
  
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?
S589263 Construction 5S 5S31C409686 Active CONSTW 2009-0009-DWQ 09/25/2025 None Discharger 08/19/2025 None None
S589730 Construction 7 7 36C408884 Active CONSTW 2009-0009-DWQ 08/29/2025 None Discharger 08/25/2025 None None
S588421 Construction 4 4 56C408523 Active CONSTW 2009-0009-DWQ 08/25/2025 None Discharger 08/06/2025 None None
S590141 Construction 4 4 19C409058 Active CONSTW 2009-0009-DWQ 09/03/2025 None Discharger 08/28/2025 None None
S588246 Construction 4 4 56C408563 Active CONSTW 2009-0009-DWQ 08/25/2025 None Discharger 08/04/2025 None None
Total Regulatory Measures: 5
  
  
  
  
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.
S895169 09/02/2025 SW - Failure to Obtain Permit Failure to obtain coverage under the 2022 CGP by 09/01/2025. Violation N Internal Report Collins Drive S550599 2009-0009-DWQ Y
S891637 06/23/2025 SW - Deficient BMP Implementation ? Sediment track-out was observed on adjacent streets. ? Stabilized entrance/exi Violation N Inspection Fillmore Tract 5422 Creekside S531393 2009-0009-DWQ Y
S894219 09/02/2025 SW - Failure to Obtain Permit Failure to obtain coverage under the 2022 CGP by 09/01/2025. Violation N Internal Report Tract 60259 Park Place S544607 2009-0009-DWQ Y
S896191 09/02/2025 SW - Failure to Obtain Permit Failure to obtain coverage under the 2022 CGP by 09/01/2025. Violation N Internal Report Palo Verde Tract 32279 and 33336 S547626 2009-0009-DWQ Y
S896264 09/02/2025 SW - Failure to Obtain Permit Failure to obtain coverage under the 2022 CGP by 09/01/2025. Violation N Internal Report Lancaster Apartments S551096 2009-0009-DWQ Y
S895186 09/02/2025 SW - Failure to Obtain Permit Failure to obtain coverage under the 2022 CGP by 09/01/2025. Violation N Internal Report Valley Villas S551374 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: 6
*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
S460018 Notice of Violation None 5S31C398066 CONSTW 09/05/2025 Active
S460035 Notice of Violation None 4 19C397942 CONSTW 09/05/2025 Active
S456537 Verbal Communication None 4 56C394287 CONSTW 06/23/2025 Active
S461113 Notice of Violation None 6B19C398078 CONSTW 09/05/2025 Active
S459068 Notice of Violation None 4 19C395981 CONSTW 09/05/2025 Active
S461040 Notice of Violation None 7 33C396928 CONSTW 09/05/2025 Active
S438427 Verbal Communication None 4 56C389406 CONSTW 10/29/2020 Historical
S446157 Notice of Violation None 4 56C389406 CONSTW 02/09/2022 Historical
S448679 2nd Annual Report Notice of Non-Compliance None 7 33C396761 CONSTW 12/15/2022 Historical
S448460 1st Annual Report Notice of Non-Compliance None 7 33C396761 CONSTW 11/03/2022 Historical
S435959 Notice to Comply None 4 56C383032 CONSTW 11/19/2019 Historical
S411859 1st Annual Report Notice of Non-Compliance None 8 36C357621 CONSTW 12/13/2012 Historical
S407377 Notice of Violation None 4 19C337633 CONSTW 12/07/2011 Historical
Total Enforcement Actions: 13
  
  
  
  
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: 10/31/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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