Lawrence Livermore National Laboratory’s (LLNL’s) Annual Site Environmental Report (ASER) presents environmental monitoring results, evaluates the impact of LLNL operations on the surrounding environment, records LLNL’s compliance with environmental standards and requirements, and describes LLNL’s environmental protection and remediation programs. The ASER is prepared by the LLNL Environmental Functional Area for the U.S. Department of Energy.
The full 2025 report can be accessed here.
Additionally, an archive of previous annual reports, dating back to 1994, is available for review at this link: Report Archive.
If you would like to be notified when the latest ASER is available for viewing and download, please contact the ASER team via email at wilson101 [at] llnl.gov (wilson101[at]llnl[dot]gov).
Report Sections
Chapter 3: Environmental Program Information
Chapter 4: Air Monitoring Programs
Chapter 5: Water Monitoring Programs
Chapter 6: Terrestrial Monitoring
Chapter 7: Groundwater Investigation and Remediation
- A.1. Air-Effluent_2025.xlsx
- A.2_Ambient Air_2025.xlsx
- A.3_LV Wastewater_2025.xlsx
- A.4_LV Stormwater_2025.xlsx
- A.5_LV Groundwater_2025.xlsx
- A.6_S300 Groundwater_2025.xlsx
- A.7_Other Water_2025.xlsx
- A.8_Soil_2025.xlsx
- A.9_Ambient Radiation and Vegetation_2025.xlsx
Appendix B: Wildlife Survey Results
- LLNL Fiscal Year 2026 Energy and Water Management Narrative
- LLNL Ground Water Project 2025 Annual Report
- LLNL NESHAPs 2025 Annual Report
- Site 300 2025 Compliance Monitoring Annual Report
- Site 300 Compliance Monitoring Program for the Closed Building 829 Facility Annual Report 2025
- Site 300 Compliance Monitoring Report for Waste Discharge Requirement Order No. R5-2008-0148 Annual/Second Semester Report 2025
- Supplementary Topics on Radiological Dose
Appendix E: Percentage of In-Control Duplicate Pairs for Field Collocated Samples
Appendix F: Number of Samples Collected with Valid Analytical Results versus Planned
