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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
32061 Newhall Land & Farming Company Valencia Privately-Owned Business 25124 Springfield Court 300 Valencia, CA 91355-2103 805-255-4026(+) None
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
877310 Southbound Interstate 5/ Rye Canyon Road Hook Ramps Relocation Project Los Angeles 4 Dredge/Fill Site Owner 11/01/2021 None
867310 Entrada South Project (Tract 53295) Los Angeles 4 Dredge/Fill Site Owner 06/10/2020 None
845301 Mission Village Project Off-site Debris Basin Los Angeles 4 Dredge/Fill Site Owner 03/02/2018 None
788780 Newhall Ranch Resource and Development Plan Los Angeles 4 Development Site, NEC Owner and Operator 12/05/2012 None
634130 Newhall Land Los Angeles 4 Facility Owner 06/07/2006 None
273701 West Creek Stabilization Proj Los Angeles 4 Facility Owner 08/07/2000 None
273580 Well #162 Los Angeles 4 Facility Owner 07/12/2001 None
272726 Wilson Slough Fish Screen Project Glenn 5R Dredge/Fill Site Owner 06/17/2005 None
261649 South River Dewatering Proj. Los Angeles 4 Facility Owner 12/15/1998 None
261510 Soledad Business Park Bank Pro Los Angeles 4 Facility Owner 05/09/2003 None
260015 Salt Creek Pipeline Crossing Ventura 4 Facility Owner 01/19/1999 None
244919 Natural River Management Plan Los Angeles 4 Waterway/Shoreline Site Owner 01/15/1999 None
231309 Hart/Pony Baseball & Auto Mall Los Angeles 4 Facility Owner 04/10/2003 None
223245 East Creek Channel Lining Proj Los Angeles 4 Facility Owner 05/25/2000 None
221176 Del Lago Dewatering Proj. Los Angeles 4 Facility Owner 10/19/1998 None
221142 Decoro Drive Bridge Los Angeles 4 Facility Owner 04/11/2000 None
218639 Creekside Bank Stabilization Los Angeles 4 Facility Owner 08/07/2000 None
208307 Avenue Scott Bridge Los Angeles 4 Facility Owner 02/19/1999 None
Total Related Places: 18
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
83365 Ross Pistone Person Enforcement Contact 01/27/2003 None None
83365 Ross Pistone Person Legally Responsible Official 10/19/1998 None None
83365 Ross Pistone Person Facility Contact 10/19/1998 None None
537832 Matt Carpenter Person Legally Responsible Official 12/05/2012 None None
537852 Samuel Rojas Person Data Submitter 12/06/2012 None None
537852 Samuel Rojas Person Legally Responsible Official 03/02/2018 None None
Total Related Parties: 6
  
  
  
  
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?
Total Regulatory Measures: 0
  
  
  
  
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
256874 Admin Civil Liability R4-2003-0005 MMPC R4-2003-0005 Newhall Land, Avenue Scott Bridge 01/27/03 NPDNONMUNIPRCS 01/27/2003 Historical
256873 Admin Civil Liability R4-2003-0004 MMPC R4-2003-0004 Newhall Land, South River Dewatering Proj (01/27/03) NPDNONMUNIPRCS 01/27/2003 Historical
238021 Notice of Violation NOV NOV - Newhall Land, South River Dewatering Proj. (06/20/05) NPDNONMUNIPRCS 09/25/2001 Historical
228384 Staff Enforcement Letter SEL Notice of Noncompliance sent 7/16/99 for effluent violations.- 4A196000455 NPDNONMUNIPRCS 07/16/1999 Historical
Total Enforcement Actions: 4
  
  
  
  
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: 11/03/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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