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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
447720 KB Home Privately-Owned Business 25125 Springfield Court 180 Valencia, CA 91355 661-219-6880 None
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
629232 Segment D of Townhomes at the River Ventura 4 Facility Owner 05/01/2006 None
845304 Dockweiler Residential Project Los Angeles 4 Dredge/Fill Site None None None
633246 Segment E of Townhomes at the River Ventura 4 Facility Owner 05/01/2006 None
267724 Townhomes at the River, Tract No 5353 Ventura 4 Residence, NEC Owner 05/01/2006 None
629180 Segment C of Townhomes at the River Ventura 4 Facility Owner 05/01/2006 None
630266 Segment B of Townhomes at the River Ventura 4 Facility Owner 05/01/2006 None
Total Related Places: 6
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
554575 Thomas DiPrima Person Legally Responsible Official 08/15/2013 None None
649938 Ron Mertzel Person Board member 10/09/2020 None None
447721 Larry Siegal Person Employee 11/20/2007 None None
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?
193133 Enrollee - NPDES 4 4A567500058 Historical NPDNONMUNIPRCS R4-2013-0095 03/04/2005 06/26/2019 Discharger 05/01/2006 None N
299029 Enrollee 4 4A567500186 Historical NPDNONMUNIPRCS R4-2003-0111 12/20/2005 07/30/2008 Discharger 05/01/2006 None N
302802 Enrollee 4 4A567500134 Historical NPDNONMUNIPRCS R4-2003-0111 12/09/2005 07/01/2008 Discharger 05/01/2006 None N
297515 Enrollee 4 4A567500100 Historical NPDNONMUNIPRCS R4-2003-0111 12/13/2005 07/29/2008 Discharger 05/01/2006 None N
297577 Enrollee 4 4A567500097 Historical NPDNONMUNIPRCS R4-2003-0111 12/13/2005 07/02/2008 Discharger 05/01/2006 None N
419800 401 Certification 4 4WQC40118021 Active CERFILLEXC None 03/25/2020 None Discharger 10/09/2020 None N
Total Regulatory Measures: 6
  
  
  
  
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
343031 Notice of Violation NOV NOV sent 3/3/08 for 5 overdue monitoring reports (4Q06-4Q07). NPDNONMUNIPRCS 03/03/2008 Historical
Total Enforcement Actions: 1
  
  
  
  
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: 05/12/2026
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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