LANL News:
New documents have been added to the Los Alamos Legacy Cleanup Contract Electronic Public Reading Room.
All legacy cleanup documents required to be posted after April 30, 2018, are available on the site linked above.
For legacy cleanup documents that were posted prior to April 30, 2018, please visit the LANL electronic public reading room.
- Notification of Update to Signatory Officials and Authorized Representatives for the Los Alamos National Laboratory Hazardous Waste Facility Permit and Hazardous Waste Management Regulations 20.4.1, 20.4.2, and 20.4.3 New Mexico Administrative Code
https://ext.em-la.doe.gov/GovFTPFiles/api/GetFiles/GetFile?fileName=EMID-704405_N3B-2026-0216_HWFP_Updated_Delegations_063026.pdf - Monthly Notification of Groundwater Data Reviewed in June 2026
https://ext.em-la.doe.gov/GovFTPFiles/api/GetFiles/GetFile?fileName=EMID-704402_EMLA-26-BF333-2-1_Monthly_GW_June_062626.pdf - Investigation Report for Starmer/Upper Pajarito Canyon Aggregate Area (Part I [Sites at Technical Areas 08, 22, and 40]), Revision 1
https://ext.em-la.doe.gov/GovFTPFiles/api/GetFiles/GetFile?fileName=EMID-704403_EMLA-26-BF337-2-1_Starmer_Upper_PJ_CAA_IR_R1_Parts_I_wComm_Resp_062226.pdf - Investigation Report for Starmer/Upper Pajarito Canyon Aggregate Area (Part II [Sites at Technical Area 09]), Revision 1
https://ext.em-la.doe.gov/GovFTPFiles/api/GetFiles/GetFile?fileName=EMID-704404_EMLA-26-BF337-2-1_SUPCAA_Part_II_IR_Rev1_062926.pdf - 2026 Annual Periodic Monitoring Report for the Chromium Investigation Monitoring Group, Mortandad Canyon and Sandia Canyon Watersheds
https://ext.em-la.doe.gov/GovFTPFiles/api/GetFiles/GetFile?fileName=EMID-704406_EMLA-26-BF267-2-1_2026_Ann_Cr_Inv_PMR_063026.pdf - 2026 Annual Periodic Monitoring Report for the Material Disposal Area C Monitoring Group, Mortandad Canyon Watershed
https://ext.em-la.doe.gov/GovFTPFiles/api/GetFiles/GetFile?fileName=EMID-704407_EMLA-26-BF267-2-1_2026_Ann_MDA_C_PMR_063026.pdf - Submittal of the Periodic Monitoring Report for 2025 Vapor-Sampling Activities at Material Disposal Area C, Solid Waste Management Unit 50-009, at Technical Area 50
https://ext.em-la.doe.gov/GovFTPFiles/api/GetFiles/GetFile?fileName=EMID-704410_EMLA-2026-BF237-2-1_2025_MDA_C_Vapor_PMR_070126.pdf - Notification of Official Contacts for Newport News Nuclear BWXT-Los Alamos, LLC, and the U.S. Department of Energy Environmental Management Los Alamos Field Office to the New Mexico Environment Department Groundwater Quality Bureau
https://ext.em-la.doe.gov/GovFTPFiles/api/GetFiles/GetFile?fileName=EMID-704412_N3B-2026-0218_GWQB_N3B_EM-LA_Contacts_070826.pdf
