General Information Party ID Party Name Party Classification Mailing Address Work Phone Email/Website 45453 Tejon Ranchcorp Privately-Owned Business 4436 Lebec Road Lebec, CA 93243 661-858-2161(+) amartin@tejonranch.com Related Places Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date 740731 Tejon Industrial Complex East WWTF Kern 5F Wastewater Treatment Facility Owner 05/20/2010 null 631641 Tejon Industrial Complex CS Kern 5F Collection_System Owner 04/05/2006 null 273156 Tejon Industrial Complex West WWTF Kern 5F Wastewater Treatment Facility Land Owner 09/30/1998 null 266620 I5 Eastside Wastewater Discharge Ponds Kern 5F Wastewater Treatment Facility Land Owner 04/26/2021 null 248645 Plant GW Treatment System - National Cement Kern 6B Concrete Manufacturing None null null Related Parties Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification 634242 David Mitchell Person Data Submitter 07/06/2022 null null 603838 Larry Johnson Person Legally Responsible Official 10/30/2019 null null 546472 James Anderson Person Legally Responsible Official 04/18/2023 null null 521988 Gary Valladao Person Legally Responsible Official 06/04/2015 null null 521988 Gary Valladao Person Data Submitter 03/25/2015 06/04/2015 null 381256 William Rosica Person Legally Responsible Official 05/30/2007 04/01/2014 null 299600 Dale Gonzales Person Data Submitter 10/27/2014 null null Regulatory Measures(non-enforcement) Reg. Measure ID Regulatory Measure Type Region WDID Title Status Program Order No. RM Effective Date RM Termination Date Relationship Relationship Start Date Relationship End Date 445491 Enrollee - NPDES 6V 6B150009004 Enrollee - NPDES for National Cement Company Active NPDNONMUNIPRCS R6T-2016-0011 01/07/2021 null Discharger 01/07/2021 null 368204 WDR 5F 5C15NC00128 WDR R5-2011-0066 for Tejon Castac Water District Active WDRMUNILRG R5-2011-0066 10/13/2011 null Discharger 05/20/2010 null 337300 WDR 5F 5D151014003 WDR R5-2008-0004 for Tejon Industrial Complex West WWTF Active WDRMUNILRG R5-2008-0004 01/25/2008 null Discharger 11/26/2007 null 300974 Enrollee - WDR 5F 5SSO10765 Enrollee of SB SSO WDR for Tejon Ranchcorp - Tejon Industrial Complex CS Active SSOMUNISML 2022-0103-DWQ 01/09/2007 null Discharger 04/14/2006 null 148789 WDR 5F 5D151054001 WDR 5-01-002 for Tejon Ranchcorp - Tejon Castac Water District Active WDRMUNIOTH 5-01-002 01/26/2001 null Discharger 04/26/2021 null 145964 WDR 5F 5D151014003 WDR 99-076 for Tejon Ranchcorp Tejon Ranch WWTF Historical WDRMUNILRG 99-076 06/11/1999 01/24/2008 Discharger 06/11/1999 null Violations within the past calendar 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. 1136465 11/21/2024 Late Report Report 2 30-day periods late Violation N Report Plant GW Treatment System - National Cement 445491 R6T-2016-0011 N 1136463 11/21/2024 Late Report Report 5 30-day period late Violation N Report Plant GW Treatment System - National Cement 445491 R6T-2016-0011 N 1136458 11/21/2024 Late Report Report 8 30-day period late Violation N Report Plant GW Treatment System - National Cement 445491 R6T-2016-0011 N 1136451 11/21/2024 Late Report Report 12 30-day periods late Violation N Report Plant GW Treatment System - National Cement 445491 R6T-2016-0011 N 1136447 11/21/2024 Late Report Report 15 30-day periods late Violation N Report Plant GW Treatment System - National Cement 445491 R6T-2016-0011 N 1136440 11/21/2024 Late Report Report 18 30-day periods late Violation N Report Plant GW Treatment System - National Cement 445491 R6T-2016-0011 N 1136437 11/21/2024 Late Report Report 22 30-day periods late as of 11/21/2024 Violation N Report Plant GW Treatment System - National Cement 445491 R6T-2016-0011 N 1136436 11/21/2024 Late Report Report 25 30-day periods late as of 11/21/2024 Violation N Report Plant GW Treatment System - National Cement 445491 R6T-2016-0011 N 1136435 11/21/2024 Late Report Report 28 30-day periods late as of 11/21/2024 Violation N Report Plant GW Treatment System - National Cement 445491 R6T-2016-0011 N 1136420 11/21/2024 Late Report Late for 31 30-day periods as of 11/21/2024 Violation N Report Plant GW Treatment System - National Cement 445491 R6T-2016-0011 N 1136180 09/30/2024 CAT2 Arsenic, Total Recoverable Monthly Maximum limit is 10.0 ug/L and reported value was 13 ug/L. Violation null Report Plant GW Treatment System - National Cement 445491 R6T-2016-0011 N 1136179 09/30/2024 CAT2 Arsenic, Total Recoverable Monthly Maximum limit is 10.0 ug/L and reported value was 12.0 ug/L. Violation null Report Plant GW Treatment System - National Cement 445491 R6T-2016-0011 N 1136178 06/30/2024 CAT2 Arsenic, Total Recoverable Monthly Maximum limit is 10.0 ug/L and reported value was 12.001 ug/L. Violation null Report Plant GW Treatment System - National Cement 445491 R6T-2016-0011 N 1136177 06/30/2024 CAT2 Arsenic, Total Recoverable Monthly Maximum limit is 10 ug/L and reported value was 12 ug/L. Violation null Report Plant GW Treatment System - National Cement 445491 R6T-2016-0011 N 1136176 03/31/2024 CAT2 Arsenic, Total Recoverable Monthly Maximum limit is 10 ug/L and reported value was 12 ug/L. Violation null Report Plant GW Treatment System - National Cement 445491 R6T-2016-0011 N 1136174 03/31/2024 CAT2 Tetrachloroethene Monthly Maximum limit is 0.5 ug/L and reported value was 1.41 ug/L. Violation null Report Plant GW Treatment System - National Cement 445491 R6T-2016-0011 N 1136173 03/31/2024 CAT2 Arsenic, Total Recoverable Monthly Maximum limit is 10 ug/L and reported value was 12 ug/L. Violation null Report Plant GW Treatment System - National Cement 445491 R6T-2016-0011 N 1136172 03/31/2024 CAT2 Tetrachloroethene Monthly Maximum limit is 0.5 ug/L and reported value was 1.4 ug/L. Violation null Report Plant GW Treatment System - National Cement 445491 R6T-2016-0011 N 1136171 12/31/2023 CAT2 Arsenic, Total Recoverable Monthly Maximum limit is 10.0 ug/L and reported value was 12.01 ug/L. Violation null Report Plant GW Treatment System - National Cement 445491 R6T-2016-0011 N 1136170 12/31/2023 CAT2 Arsenic, Total Recoverable Monthly Maximum limit is 10 ug/L and reported value was 12 ug/L. Violation null Report Plant GW Treatment System - National Cement 445491 R6T-2016-0011 N Enforcement Actions Enforcement ID Enforcement Type Enf. Order No. Title Program Effective Date Status 444825 Oral Communication null Oral Com 08/31/2021 for Tejon Castac Water District WDRMUNILRG 08/31/2021 Historical 404227 Notice of Violation null NOV 06/16/2015 for Tejon Ranchcorp WDRMUNILRG 06/16/2015 Active 373440 Oral Communication null Oral Com 03/15/2010 for Tejon Ranchcorp Tejon Industrial Complex WWTF WDRMUNILRG 03/15/2010 Historical 255076 Staff Enforcement Letter null SEL 03/22/2000 for Tejon Ranchcorp Tejon Ranch WWTF WDRMUNILRG 03/22/2000 Historical 230494 Notice of Violation null NOV 12/14/1999 for Tejon Ranchcorp Tejon Ranch WWTF WDRMUNILRG 12/14/1999 Historical 229974 Notice of Violation null NOV 08/25/2000 for Tejon Ranchcorp Tejon Ranch WWTF WDRMUNILRG 08/25/2000 Historical Regulatory Measures linked to Related Parties Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status