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.
- Surface Water Data at Los Alamos National Laboratory, Water Year 2025
https://ext.em-la.doe.gov/GovFTPFiles/api/GetFiles/GetFile?fileName=EMID-704365_2025_LANL_SW_Data_060326.pdf - Submittal of the Periodic Monitoring Report for 2025 Vapor-Sampling and Soil-Vapor Extraction at Material Disposal Area L, Solid Waste Management Unit 54-006, at Technical Area 54
https://ext.em-la.doe.gov/GovFTPFiles/api/GetFiles/GetFile?fileName=EMID-704352_EMLA-26-BF187-2-1_MDA_L_Vapor_PMR_052826.pdf - Submittal of the Interim Facility-Wide Groundwater Monitoring Plan for the 2027 Monitoring Year, October 2026–September 2027
https://ext.em-la.doe.gov/GovFTPFiles/api/GetFiles/GetFile?fileName=EMID-704353_EMLA-26-BF183-2-1_MY2027_IFGMP_052926.pdf - Monthly Notification of Groundwater Data Reviewed in May 2026
https://ext.em-la.doe.gov/GovFTPFiles/api/GetFiles/GetFile?fileName=EMID-704354_EMLA-26-BF276-2-1_Monthly_GW_Apr-May_052926.pdf - Submittal of the Quarterly Report for the Discharge of Treated Groundwater to the Regional Aquifer under Discharge Permit 1835, Calendar Year 2026 Quarter 1, Class V Underground Injection Control Wells
https://ext.em-la.doe.gov/GovFTPFiles/api/GetFiles/GetFile?fileName=EMID-704356_N3B-2026-0159_DP-1835_1QCY26_052926.pdf - Review, 2025 Monitoring Report and 2026 Monitoring Plan for Los Alamos/Pueblo Watershed Sediment Transport Mitigation Project, Revision 1
https://ext.em-la.doe.gov/GovFTPFiles/api/GetFiles/GetFile?fileName=EMID-704359_NMED_Review_2026_SW_LA-P_Pln_060126.pdf - Review, 2025 Annual Periodic Monitoring Report for General Surveillance Monitoring Group: Los Alamos and Pueblo Canyon, Mortandad and Sandia Canyon, Water Canyon/Canon de Valle, Ancho Canyon, White Rock Canyon, and Pajarito Canyon Watersheds
https://ext.em-la.doe.gov/GovFTPFiles/api/GetFiles/GetFile?fileName=EMID-704360_NMED_Review_2025_Gen_Surv_Annual_PMR_060126.pdf - Response to the Environmental Agency Comments on Los Alamos National Laboratory Stormwater Individual Permit NPDES Permit No. NM0030759 – 2025 Sampling Implementation Plan, Dated April 21, 2026
https://ext.em-la.doe.gov/GovFTPFiles/api/GetFiles/GetFile?fileName=EMID-704357_N3B-2026-0168_2025_SIP_Cmmnt_Resp_052926.pdf - Submittal of the Site Treatment Plan, Fiscal Year 2025 Annual Update and Proposed Revision 36.1, Federal Facility Compliance Order, October 4, 1995, Los Alamos National Laboratory
https://ext.em-la.doe.gov/GovFTPFiles/api/GetFiles/GetFile?fileName=EMID-704351_N3B-2026-0160_FY25_STP_Annual_Update_Prop_Rev36.1_052826.pdf - Notice of Completion of Off-Site Waste Shipment for Final Disposal, Activity 4.0, Compliance Plan, Site Treatment Plan, Federal Facility Compliance Order, Los Alamos National Laboratory [March 24, 26, 31, and April 2, 2026 Shipments]
https://ext.em-la.doe.gov/GovFTPFiles/api/GetFiles/GetFile?fileName=EMID-704355_N3B-2026-0148_STP_Shipment_Mar+24+26+31+Apr+2_052726.pdf - Request for Information, Notification of Completion of Corrugated Metal Pipe Removal at Solid Waste Management Unit 54-015(k), and Termination of Area of Contamination Designation
https://ext.em-la.doe.gov/GovFTPFiles/api/GetFiles/GetFile?fileName=EMID-704358_NMED_RFI_AOC_TERM_CMP_060126.pdf - Review, Notice of Completion of Off-Site Waste Shipments for Final Disposal, Activity 4.0, Compliance Plan, Site Treatment Plan, Federal Facility Compliance Order, Los Alamos National Laboratory [March 10, 17, 19, 2026]
https://ext.em-la.doe.gov/GovFTPFiles/api/GetFiles/GetFile?fileName=EMID-704361_NMED_Review_STP_Ship_Mar10_17_19_060126.pdf - Response to the New Mexico Environment Department’s Review of the Phase II Investigation Work Plan for S-Site Aggregate Area, Revision 1, and Submittal of Revision 2
https://ext.em-la.doe.gov/GovFTPFiles/api/GetFiles/GetFile?fileName=EMID-704362_EMLA-26-BF189-2-1_S-Site_AA_WP_NOD_Resp_and_R2_060226.pdf - Response to the New Mexico Environment Department Review of the Work Plan for Aquifer Testing at Regional Aquifer Groundwater Monitoring Well R-80, and Submittal of Revision 1
https://ext.em-la.doe.gov/GovFTPFiles/api/GetFiles/GetFile?fileName=EMID-704363_EMLA-26-BF188-2-1_R-80_Test_Plan_R1_060226.pdf