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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
31208 National Cement Company Privately-Owned Business 15821 Ventera Boulevard 435 Encino, CA 91436 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
236769 Lebec Cement Plant Kern 6B Sand and Gravel Mining Operator 10/26/2000 None
243901 National Cement Old Ind LF Kern 6B Facility Owner 05/13/1993 None
248645 Plant GW Treatment System - National Cement Kern 6B Concrete Manufacturing Owner 10/26/2000 None
Total Related Places: 3
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
108325 Jerry Stefanik Person Facility Contact 10/26/2000 None None
109433 John Heiser Person Facility Contact 10/26/2000 None None
Total Related Parties: 2
  
  
  
  
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?
374383 Enrollee 6V 6B150009004 Historical NPDNONMUNIPRCS R6T-2010-0024 08/12/2011 01/07/2021 Discharger 06/16/2004 None N
203938 Enrollee 6V 6B159007001 Historical LNDISPOTH R6T-2004-0025 03/14/1991 06/10/2003 Discharger 09/01/2005 None N
203936 Enrollee 6V 6B150009004 Historical NPDNONMUNIPRCS 98-075 12/26/2001 11/06/2003 Discharger 09/01/2005 None N
445491 Enrollee - NPDES 6V 6B150009004 Active NPDNONMUNIPRCS R6T-2016-0011 01/07/2021 None Discharger 01/07/2021 None N
146154 NPDES Permit 6V 6B159301001 Historical NPDESWW 93-041 05/13/1993 03/09/2000 Discharger 05/13/1993 None N
147798 NPDES Permit 6V 6B159301001 Historical NPDESWW 00-011 03/09/2000 03/09/2005 Discharger 03/09/2000 None N
147557 WDR 6V 6B159007001 Historical LNDISPOTH 00-035 05/10/2000 06/11/2003 Discharger 05/10/2000 None N
147646 WDR 6V 6B159007001 Historical LNDISPOTH 6-00-37 05/10/2000 05/10/2000 Discharger 05/10/2000 None N
145890 WDR 6V 6B159007001 Historical LNDISPOTH 91-019A1 04/20/1995 10/09/1997 Discharger 04/20/1995 None N
147597 WDR 6V 6B159007001 Historical LNDISPOTH 97-098 10/09/1997 05/10/2000 Discharger 10/09/1997 None N
132807 WDR 6V 6B159007001 Active LNDISPOTH 03-025 06/11/2003 None Discharger 06/11/2003 None N
145889 WDR 6V 6B159007001 Historical LNDISPOTH 91-019 03/14/1991 10/09/1997 Discharger 03/14/1991 None N
Total Regulatory Measures: 12
  
  
  
  
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
459751 Notice of Violation None NOV 01/17/2025 for Tejon Ranchcorp NPDNONMUNIPRCS 01/17/2025 Active
383964 Oral Communication None Oral Com 03/21/2012 for Lafarge North America Inc NPDNONMUNIPRCS 03/21/2012 Historical
375805 Staff Enforcement Letter None SEL 09/08/2010 for NATIONAL CEMENT CO NPDNONMUNIPRCS 09/08/2010 Historical
254772 Oral Communication UNKNOWN Enforcement - 6B150009004 NPDNONMUNIPRCS 03/03/2004 Historical
253017 Staff Enforcement Letter UNKNOWN Enforcement - 6B159007001 LNDISPOTH 06/16/2004 Historical
252974 Staff Enforcement Letter UNKNOWN Enforcement - 6B150009004 NPDNONMUNIPRCS 06/16/2004 Historical
244340 Clean-up and Abatement Order 6-90-059A4 Enforcement - 6B159007001 LNDISPOTH 09/01/2000 Historical
223378 Clean-up and Abatement Order 90-059A1 Enforcement - 6B159007N01 UNREGS 12/30/1996 Historical
223167 Clean-up and Abatement Order 97-099 Enforcement - 6B159007001 LNDISPOTH 10/09/1997 Historical
223147 Cease and Desist Order 97-100 CDO 6-97-100 for National Cement Company Lebec Cement Plant LNDISPOTH 10/09/1997 Historical
223140 Clean-up and Abatement Order 90-059A2 Enforcement - 6B159007N01 UNREGS 11/04/1998 Historical
219475 Clean-up and Abatement Order 90-059 Enforcement - 6B159007N01 UNREGS 10/09/1990 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
Total Regulatory Measures linked to Related Parties: 0
  
  
The current report was generated with data as of: 04/23/2026
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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