General Information Party ID Party Name Party Classification Mailing Address Work Phone Email/Website 633160 Los Angeles County Metropolitan Transportation Authority County Agency 1 Gateway Plaza Los Angeles, CA 90012-2952 213-418-3370 kefalast@metro.net Related Places Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date 896211 LA Metro Southeast Gateway Line Geotechnical Investigation: Rio Hondo Los Angeles 4 Dredge/Fill Site Owner 08/27/2024 null 895934 LACMTA I-5 HOV CAPACITY ENHANCEMENT PROJECT #2 Los Angeles 4 Development Site, NEC Owner 08/06/2024 null 881731 Westside Subway Purple Line Extension Section 2 Crosspassage Dewatering sites Los Angeles 4 Service/Commercial Site, NEC Owner 06/13/2022 null 881387 UCLA Station Los Angeles 4 Development Site, NEC Owner 05/26/2022 null 881248 Veteran Affairs (VA) Station Los Angeles 4 Development Site, NEC Owner 05/17/2022 null Related Parties Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification 294938 Tom Kefalas Person Legally Responsible Official 05/17/2022 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 458197 Enrollee - 401 Certification 4 4WQC40124107 Enrollee - 401 Certification under USACE NWP Certification for Los Angeles County Metropolitan Transportation Authority Active CERFILLEXC NWP-2012 12/03/2024 null Discharger 08/27/2024 null 447822 Enrollee - NPDES 4 4B198903131 NPDES R4-2018-0125 for Los Angeles County Metropolitan Transportation Authority Active NPDMUNILRG R4-2018-0125 07/15/2022 null Discharger 05/26/2022 null 447733 Enrollee - NPDES 4 4B198903129 Enrollee - NPDES under NPDES Gen Permit for GW Const & Proj Dewat for Los Angeles County Metropolitan Transportation Authority Active NPDMUNIOTH R4-2018-0125 07/28/2022 null Discharger 05/17/2022 null 457960 Enrollee - NPDES 4 4A198906014 Enrollee - NPDES for Los Angeles County Metropolitan Transportation Authority Historical NPDNONMUNIPRCS R4-2023-0429 08/14/2024 02/21/2025 Discharger 08/06/2024 null 448115 Enrollee - NPDES 4 448115 Enrollee - NPDES under NPDES Gen Permit for GW Const & Proj Dewat for Los Angeles County Metropolitan Transportation Authority Historical NPDNONMUNIPRCS R4-2018-0125 07/15/2022 02/21/2025 Discharger 06/13/2022 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. 1140004 02/12/2025 Late Report Late 3Q24 SMR, due 11/14/24, received 2/12/25, 90 days late. Violation N Report UCLA Station 447822 R4-2018-0125 Y 1143437 02/07/2025 CAT2 Tetrachloroethene Daily Maximum limit is 5.0 ug/L and reported value was 6.57 ug/L. Violation N Report Veteran Affairs (VA) Station 447733 R4-2018-0125 Y 1141679 02/14/2025 Late Report submitted 3/6/25, due 2/14/25, 18 days late Violation N Report Westside Subway Purple Line Extension Section 2 Crosspassage Dewatering sites 448115 R4-2018-0125 N 1146092 08/19/2025 Late Report 2Q25 SDMR due 8/14/2025, received 8/15/2025, 1 day late. Violation N Report UCLA Station 447822 R4-2018-0125 N 1146356 06/20/2025 CAT2 Dioxane Maximum Daily (MDEL) limit is 3 ug/L and reported value was 5.9 ug/L. Violation N Report Veteran Affairs (VA) Station 447733 R4-2018-0125 Y 1143441 03/31/2025 Deficient Reporting Acute Toxicity not reported correctly, reported as LC50 instead of percent survival as required by permit Violation N Report Veteran Affairs (VA) Station 447733 R4-2018-0125 N 1146351 08/15/2025 Late Report 2Q25 report submitted 1 day late Violation N Report Veteran Affairs (VA) Station 447733 R4-2018-0125 N 1143442 03/31/2025 Deficient Reporting 4,4 DDT and 1,4 dioxane not reported monthly Violation N Report Veteran Affairs (VA) Station 447733 R4-2018-0125 N 1146354 04/30/2025 Deficient Monitoring 1,4 dioxane and 4,4 DDT not monitored in April, required monthly Violation N Report Veteran Affairs (VA) Station 447733 R4-2018-0125 N 1146355 05/28/2025 CAT2 Dioxane Maximum Daily (MDEL) limit is 3 ug/L and reported value was 5.7 ug/L. Violation N Report Veteran Affairs (VA) Station 447733 R4-2018-0125 Y 1141917 03/14/2025 Late Report 4Q24 report submitted 28 days late Violation N Report Veteran Affairs (VA) Station 447733 R4-2018-0125 N 1143436 01/08/2025 CAT2 Tetrachloroethene Daily Maximum limit is 5.0 ug/L and reported value was 7.69 ug/L. Violation N Report Veteran Affairs (VA) Station 447733 R4-2018-0125 Y 1143438 01/31/2025 CAT2 Copper, Total Recoverable Monthly Average limit is 7 ug/L and reported value was 8.99 ug/L. Violation N Report Veteran Affairs (VA) Station 447733 R4-2018-0125 Y 1143439 03/31/2025 CAT2 Copper, Total Recoverable Monthly Average limit is 7 ug/L and reported value was 8.29 ug/L. Violation N Report Veteran Affairs (VA) Station 447733 R4-2018-0125 Y 1141766 03/14/2025 Late Report 4Q24 SMR due 2/14/25, received 3/14/23 - 28 days late. Violation N Report UCLA Station 447822 R4-2018-0125 N Enforcement Actions Enforcement ID Enforcement Type Enf. Order No. Title Program Effective Date Status 457383 Admin Civil Liability R4-2024-0195 ACL R4-2024-0195 for Los Angeles County Metropolitan Transportation Authority NPDNONMUNIPRCS 09/25/2024 Historical 457915 Admin Civil Liability R4-2024-0314 ACL R4-2024-0314 for Los Angeles County Metropolitan Transportation Authority NPDMUNIOTH 10/09/2024 Historical 459322 Admin Civil Liability R4-2024-0384 ACL R4-2024-0384 for Los Angeles County Metropolitan Transportation Authority NPDMUNIOTH 02/20/2025 Historical 460618 Admin Civil Liability R4-2025-0145 ACL R4-2025-0145 for Los Angeles County Metropolitan Transportation Authority NPDNONMUNIPRCS 10/02/2025 Historical 461968 Admin Civil Liability R4-2025-0168 ACL R4-2025-0168 for Los Angeles County Metropolitan Transportation Authority NPDMUNILRG 11/13/2025 Active 463115 Expedited Payment Letter R4-2025-0229 EPL R4-2025-0229 for Los Angeles County Metropolitan Transportation Authority NPDMUNIOTH 10/30/2025 Active Regulatory Measures linked to Related Parties Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status