Individual Permit

The Individual Permit authorizes the discharge of storm water associated with historical industrial activities at Los Alamos National Laboratory from specified solid waste management units and areas of concern, collectively referred to as Sites.

Coronavirus and the Individual Permit

Documents related to the impact of Coronavirus pandemic on the Individual Permit will be posted here

Legacy Cleanup

Among other legacy cleanup operations, the work performed under the National Pollutant Discharge Elimination System (NPDES) Individual Permit is managed by N3B for the Department of Energy’s Environmental Management Los Alamos Field Office , as of April 30, 2018

What's New

Documents recently submitted to the EPRR

May 17, 2022 Surface Water Data at Los Alamos National Laboratory, Water Year 2021

April 25, 2022 Notice of Public Comment on Alternative Compliance Requests for Two Site Monitoring Area/Site Combinations Under the National Pollutant Discharge Elimination System (NPDES) Permit NM0030759

April 21, 2022 2021 Sandia Wetland Performance Report

April 21, 2022 2021 Sandia Wetland Performance Report Appendices

April 19, 2022 NPDES Permit No. NM0030759 – Alternative Compliance Requests for Two Site Monitoring Area/Site Combinations Exceeding Target Action Levels from Nonpoint Sources

April 15, 2022 2021 Monitoring Report and 2022 Monitoring Plan for Los Alamos/Pueblo Watershed Sediment Transport Mitigation Project

April 15, 2022 2021 Monitoring Report and 2022 Monitoring Plan for Los Alamos/Pueblo Watershed Sediment Transport Mitigation Project Appendices

April 14, 2022 2021 Update to the Site Discharge Pollution Prevention Plan, Revision 1, NPDES Permit No. NM0030759. Overview

April 14, 2022 2021 Update to the Site Discharge Pollution Prevention Plan, Revision 1, NPDES Permit No. NM0030759. Volume 1

April 14, 2022 2021 Update to the Site Discharge Pollution Prevention Plan, Revision 1, NPDES Permit No. NM0030759. Volume 2

April 14, 2022 2021 Update to the Site Discharge Pollution Prevention Plan, Revision 1, NPDES Permit No. NM0030759. Volume 3

April 14, 2022 2021 Update to the Site Discharge Pollution Prevention Plan, Revision 1, NPDES Permit No. NM0030759. Volume 4

April 14, 2022 2021 Update to the Site Discharge Pollution Prevention Plan, Revision 1, NPDES Permit No. NM0030759. Volume 5

March 16, 2022 NPDES Permit No. NM0030759 – Certification of Installation of Enhanced Control Measures for A-SMA-2

February 23, 2022 Storm Water Individual Permit Annual Report, Reporting Period: January 1–December 31, 2021

February 16, 2022 NPDES Permit No. NM0030759 – Resubmittal of Certification Package for Sites in P-SMA-2 following Certification of Completion by the New Mexico Environment Department

December 16, 2021 NPDES Permit No. NM0030759 – Completion of Corrective Action at Site 05-001(c) in M-SMA-13 Following Certification of Completion by the New Mexico Environment Department

December 7, 2021 NPDES Permit No. NM0030759 – Certification of Installation of Enhanced Control Measures at A-SMA-1.1 and A-SMA-3

November 30, 2021 Analytical Results for Sites 54-013(b), 54-017, and 54-020 in Site Monitoring Area PJ-SMA-19 and Site 50-009 in Site Monitoring Area T-SMA-1 after Certification of a No Exposure Condition

November 17, 2021 Draft Agenda for November 30, 2021 IP Public Meeting

November 4, 2021 NPDES Permit No. NM0030759 – Analytical Results for Site Monitoring Areas CDV-SMA-7, CDV-SMA-9.05, F-SMA-2, PJ-SMA-11.1, PT-SMA-2, and S-SMA-6 from the First Measurable Storm Event Following Certification of Enhanced Control Measures

October 12, 2021, NPDES Permit No. NM0030759 – Certification of Installation of Enhanced Control Measures for CHQ-SMA-4

October 8, 2021, NPDES Permit No. NM0030759 – Analytical Results for Site Monitoring Areas CDB-SMA-1 and CHQ-SMA-0.5 from the First Measurable Storm Event Following Certification of Enhanced Control Measures

IP 24-hour Oral Reporting for Exceedances of Maximum TALs to EPA per IP Part II.B. Notice for MTAL Exceedance in Validated Data for PJ-SMA-11.1, PJ-SMA-11, S-SMA-6, PT-SMA-2, F-SMA-2, M-SMA-13, T-SMA-1, and W-SMA-11.7 on October 5, 2021

September 29, 2021 NPDES Permit No. NM0030759 - Analytical Results for Site Monitoring Areas PJ-SMA-9 and STRM-SMA-4.2 from the First Measurable Storm Event Following Certification of Enhanced Control Measures

IP 24-Hour Oral Exceedance MTAL Report for PJ-SMA-3.05, PJ-SMA-9, and STRM-SMA-4.2 on August 31, 2021 (pdf)

August 27, 2021 NPDES Permit No. NM0030759 – Analytical Results for Site Monitoring Area PJ-SMA-11 from the First Measurable Storm Event Following Certification of Enhanced Control Measures

IP 24-Hour Oral Exceedance MTAL Report for CHQ-SMA-6 on August 26, 2021 (pdf)

August 6, 2021 NPDES Permit No. NM0030759 – Analytical Results for Site Monitoring Areas CHQ-SMA-1.02, CHQ-SMA-6, and PJ-SMA-5 from the First Measurable Storm Event Following Certification of Enhanced Control Measures

IP 24-Hour Oral Exceedance MTAL Report for PJ-SMA-11 on July 28, 2021

IP 24-Hour Oral Exceedance MTAL Report for CHQ-SMA-1.02 on July 9, 2021

IP 24-Hour Oral Exceedance MTAL Report for CHQ-SMA-6 and PJ-SMA-5 on July 7, 2021

What Is the Individual Permit for Storm Water?

The Permit - NPDES No. NM0030759 - - was issued by the U.S. Environmental Protection Agency, Region 6, on September 30, 2010 to Los Alamos National Security, LLC (LANS) and the U.S. Department of Energy. The Individual Permit became effective on November 1, 2010. On April 30, 2018, responsibilities, coverage, and liability transferred from LANS to Newport News Nuclear BWXT-Los Alamos, LLC (N3B). N3B and the U.S. Department of Energy are collectively referred to as the Permittees.

The Permit contains nonnumeric technology-based effluent limitations, coupled with a comprehensive, coordinated inspection and monitoring program, to minimize pollutants in the Permittees’ storm water discharges associated with historical industrial activities from specified SWMUs and AOCs. The Permittees are required to implement site-specific control measures (including best management practices [BMPs]) to address the nonnumeric technology-based effluent limits, as necessary, to minimize pollutants in their storm water discharges.

The Permit establishes target action levels (TALs) that are equivalent to New Mexico State water-quality criteria. These TALs are used as benchmarks to determine the effectiveness of control measures implemented under the Permit. That is, confirmation monitoring sample results for an SMA are compared with applicable TALs. If one or more confirmation monitoring result exceeds a TAL, the Permittees must take corrective action. The Permit requires that the Permittees either certify to EPA completion of corrective action at each Site by a specific deadline or seek to place individual Sites into alternative compliance, whereby completion of corrective action will be accomplished on a case-by-case basis pursuant to an individually tailored compliance schedule determined by EPA.