General Information Party ID Party Name Party Classification Mailing Address Work Phone Email/Website 599267 UPRR Dunsmuir Railyard Privately-Owned Business 5750 Sacramento Avenue Dunsmuir, CA 96025 null null Related Places Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date 881660 North Fueling Facility Dunsmuir Railyard 2022 Response Action Project Siskiyou 5R Dredge/Fill Site Owner 06/08/2022 null 859264 UPRR Dunsmuir Railyard North Fueling Facility Siskiyou 5R Groundwater Cleanup Site Owner and Operator 06/24/2019 null 220849 Dunsmuir Railyard Siskiyou 5R Service/Commercial Site, NEC Owner and Operator 11/02/2020 null Related Parties Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification 547654 Lauren Mancuso Person Legally Responsible Official 11/02/2020 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 449118 Individual Monitoring Requirem 5R 5A45UT00006 Ind MRP R5-2019-0713-R04 for UPRR Dunsmuir Railyard Active SLIC R5-2019-0713-R04 04/26/2022 null Discharger 09/02/2022 null 448338 Enrollee - NPDES 5R 5A471001002 Enrollee - NPDES R5-2022-0006-011 for UPRR Dunsmuir Railyard Dewatering Project Active NPDNONMUNIPRCS R5-2022-0006-02 04/03/2023 null Discharger 06/28/2022 null 448058 Enrollee - 401 Certification 5R 5A47CR00058 Enrollee - 401 Certification for UPRR Dunsmuir Railyard Historical CERFILLEXC SB20031GN 06/28/2022 01/02/2024 Discharger 06/08/2022 null 441128 Enrollee - NPDES 5R 5A471001002 Enrollee - NPDES R5-2022-0006-02 for UPRR Dunsmuir Railyard Active NPDINDSML R5-2022-0006-02 10/30/2020 null Discharger 11/02/2020 null 416877 Enrollee - NPDES 5R 5A471001002 Enrollee under NPDES Limited Threat GO R5-2016-0076-030 for Union Pacific Railroad Company Dunsmuir Railyard Historical NPDNONMUNIPRCS R5-2016-0076-01 12/11/2017 10/29/2020 Discharger 04/06/2020 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. 1127076 01/31/2024 CAT2 Indeno (1,2,3-cd) Pyrene Monthly Average limit is 0.0044 ug/L and reported value was 0.011 ug/L. Violation N Report Dunsmuir Railyard 448338 R5-2022-0006-02 N 1127075 01/03/2024 CAT2 Indeno (1,2,3-cd) Pyrene Maximum Daily (MDEL) limit is 0.0088 ug/L and reported value was 0.011 ug/L. Violation N Report Dunsmuir Railyard 448338 R5-2022-0006-02 N 1127074 01/31/2024 CAT2 Dibenzo(a,h)anthracene Monthly Average limit is 0.0044 ug/L and reported value was 0.011 ug/L. Violation N Report Dunsmuir Railyard 448338 R5-2022-0006-02 N 1127071 01/03/2024 CAT2 Dibenzo(a,h)anthracene Maximum Daily (MDEL) limit is 0.0088 ug/L and reported value was 0.011 ug/L. Violation N Report Dunsmuir Railyard 448338 R5-2022-0006-02 N 1127070 01/31/2024 CAT2 Chrysene Monthly Average limit is 0.0044 ug/L and reported value was 0.0058 ug/L. Violation N Report Dunsmuir Railyard 448338 R5-2022-0006-02 N 1127069 01/31/2024 CAT2 Benzo(a)pyrene Monthly Average limit is 0.0044 ug/L and reported value was 0.0083 ug/L. Violation N Report Dunsmuir Railyard 448338 R5-2022-0006-02 N 1126996 02/29/2024 CAT2 Lead, Total Monthly Average limit is 1 ug/L and reported value was 2.9 ug/L. Violation N Report Dunsmuir Railyard 441128 R5-2022-0006-02 N 1126988 02/29/2024 CAT2 Lead, Total Maximum Daily (MDEL) limit is 2 ug/L and reported value was 3.1 ug/L. Violation N Report Dunsmuir Railyard 441128 R5-2022-0006-02 N 1126987 02/20/2024 CAT2 Lead, Total Maximum Daily (MDEL) limit is 2.0 ug/L and reported value was 4.1 ug/L. Violation N Report Dunsmuir Railyard 441128 R5-2022-0006-02 N 1126976 01/23/2024 CAT2 Lead, Total Maximum Daily (MDEL) limit is 2 ug/L and reported value was 2.25 ug/L. Violation N Report Dunsmuir Railyard 441128 R5-2022-0006-02 N 1125011 12/31/2023 Deficient Monitoring The Discharger did not meet the minimum reporting level to access compliance with the lead effluent limits. Violation null Report Dunsmuir Railyard 441128 R5-2022-0006-02 Y 1124326 11/30/2023 CAT2 Lead, Total Recoverable Monthly Average (Mean) limit is 1 ug/L and reported value was 8.4 ug/L. Violation null Report Dunsmuir Railyard 441128 R5-2022-0006-02 Y 1124303 12/12/2023 CAT2 Lead, Total Recoverable Maximum Daily (MDEL) limit is 2 ug/L and reported value was 6.55 ug/L. Violation null Report Dunsmuir Railyard 441128 R5-2022-0006-02 Y 1124288 11/28/2023 CAT2 Lead, Total Recoverable Maximum Daily (MDEL) limit is 2.0 ug/L and reported value was 2.65 ug/L. Violation null Report Dunsmuir Railyard 441128 R5-2022-0006-02 Y 1124287 11/20/2023 CAT2 Lead, Total Recoverable Maximum Daily (MDEL) limit is 2 ug/L and reported value was 14.1 ug/L. Violation null Report Dunsmuir Railyard 441128 R5-2022-0006-02 Y Enforcement Actions Enforcement ID Enforcement Type Enf. Order No. Title Program Effective Date Status 456494 Notice of Violation null NOV 03/21/2024 for UPRR Dunsmuir Railyard NPDINDSML 03/21/2024 Historical 453614 Admin Civil Liability R5-2023-0508 ACL R5-2023-0508 for UPRR Dunsmuir Railyard NPDINDSML 08/30/2023 Historical 452032 Notice of Violation null NOV 03/23/2023 for UPRR Dunsmuir Railyard NPDINDSML 03/23/2023 Historical 448945 Notice of Violation null NOV 05/23/2022 for UPRR Dunsmuir Railyard NPDINDSML 05/23/2022 Historical 440609 Admin Civil Liability R5-2020-0532 ACL R5-2020-0532 for UPRR Dunsmuir Railyard NPDNONMUNIPRCS 09/23/2020 Historical 431769 Clean-up and Abatement Order R5-2019-0713 CAO R5-2019-0713 for UPRR Dunsmuir Railyard SLIC 06/11/2019 Active Regulatory Measures linked to Related Parties Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status