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3271. Approval Notification of Withdrawal and Resubmission of a Class 1 Permit Modification to Attachment D; Contingency Plan; Los Alamos National Laboratory (LANL) Hazardous Waste Facility Permit EPA ID No. NM0890010515 HWB-LANL-17-029

3272. Approval and Determination of Administratively Complete Request for Class 1 Permit Modification with Prior Approval to Add a Treatment Process at Technical Area 50. Building 69 Los Alamos National Laboratory EPA ID#NM0890010515 HWB-LANL-23-039

3273. Approval Notification of a Class 1 Permit Modification to Update Contact Information and Emergency Equipment in the Los Alamos Hazardous Waste Facility Permit Los Alamos National Laboratory EPA ID#NM0890010515 HWB-LANL-22-093

3274. Approval Class 1 Permit Modification Request Requiring Prior Approval for Treatment in Containers at TA-54-0412 Los Alamos National Laboratory EPA# NM0890010515 HWB-LANL-21-002

3275. APPROVAL EXTENSION REQUEST LANL Notice of Violation with Proposed Penalties EPA ID #NM0890010515 HWB-LANL-22-019

3276. Approval Extension Request to Respond to Second Administratively Incomplete Determination Part A and General Part B of the Resource Conservation and Recovery Act (RCRA) Permit Renewal Application Los Alamos National Laboratory EPA ID #NM0890010515 HWB-LANL-20-001

3277. Approval Proposed Methodology for Sampling Polyfluoroalkyl and Perfluoroalkyl Compounds at Los Alamos National Laboratory for the Closure of the Area 16-399 Burn Tray Los Alamos National Laboratory EPA ID# NM0890010515 HWB-LANL-22-039

3278. Report for supplemental soil-vapor extraction pilot test at material disposal area G, technical area 54

3279. Multiple Activities Work Plan for the Treatment and Land Application of Groundwater From Mortandad and Sandia Canyons, DP-1793 WP#2

3280. NFA Status for PRSs 48-002(e), 48-007(b,c,f) and Addendum to the RFI Report for PRSs at TA-48