1. Nevada National Security Site (NNSS) Nevada Field Office (NFO) FY 2015 Status Report Milinka Watson-Garrett Analytical Services Manager U.S. Department of Energy (DOE) ASP Workshop – Charleston, SC September 14-17, 2015

2. Page 2 Page 2Title ID 1094 - 09/14/2015 – Page 2 Log No. 2015-114 NNSS Located ~65 miles northwest of Las Vegas, NV Approximately 1,360 square miles of DOE controlled land –Only 10% of NNSS lands disturbed by historic and current program activities Historic mission: Research and development of nuclear weapons –Currently undergoing characterization and clean up –98% of investigations and corrective actions at surface contamination sites completed

3. Page 3 Page 3Title ID 1094 - 09/14/2015 – Page 3 Log No. 2015-114 NFO Missions Defense experimentation and stockpile stewardship Global security Environmental management The NNSS is the nation’s only site for high-explosive-driven subcritical plutonium experiments – essential for safe, effective stewardship of the enduring nuclear stockpile

4. Page 4 Page 4Title ID 1094 - 09/14/2015 – Page 4 Log No. 2015-114 NNSS Assets Device Assembly Facility Big Explosives Experimental Facility Joint Actinide Shock Physics Experimental Research U1a Underground Experimental Complex Nonproliferation Test and Evaluation Complex Nuclear Criticality Experiments Research Center Radiological/Nuclear Countermeasures Test and Evaluation Center Radiological/Nuclear Weapons of Mass Destruction Incident Exercise Site

5. Page 5 Page 5Title ID 1094 - 09/14/2015 – Page 5 Log No. 2015-114 Contractors National Security Technologies, LLC (NSTec) –Remediation, restoration –Laboratory data validation –Waste management –National security/defense –Renewable energy, conservation and infrastructure for National Nuclear Security Administration (NNSA) Navarro –Corrective action investigations –Remediation, restoration –Groundwater modeling –Laboratory data validation –Waste management

6. Page 6 Page 6Title ID 1094 - 09/14/2015 – Page 6 Log No. 2015-114 Industrial Sites Land and facilities used in direct support of nuclear testing –1,970 sites listed –12 sites remain

7. Page 7 Page 7Title ID 1094 - 09/14/2015 – Page 7 Log No. 2015-114 Soils Soil sites contaminated by atmospheric nuclear testing are being characterized, remediated, restored and/or use restricted –250 samples collected in FY 2015 –1,545 analyses performed in FY 2015 –142 sites listed –23 sites remain

8. Page 8 Page 8Title ID 1094 - 09/14/2015 – Page 8 Log No. 2015-114 Underground Test Area Five Corrective Action Units (CAUs) with multiple well locations –Scheduled for closure, model evaluation and/or investigation by data gathering activities –150 samples collected in FY 2015 –700 analyses performed in FY 2015 Sampling and analysis required for all CAUs Groundwater Characterization

9. Page 9 Page 9Title ID 1094 - 09/14/2015 – Page 9 Log No. 2015-114 ~2,500 environmental/waste samples collected in FY 2015 Waste Management: ~550 analyses National Security/Defense: ~20 analyses Conservation: ~80 analyses Infrastructure: ~3,000 analyses

10. Page 10 Page 10Title ID 1094 - 09/14/2015 – Page 10 Log No. 2015-114 Commercial Laboratory Use (FY 2015) Environmental: $500,000 –NSTec: $140,000 –Navarro: $360,000 NSTec Industrial Hygiene: $26,000 NSTec Bioassay: $24,500

11. Page 11 Page 11Title ID 1094 - 09/14/2015 – Page 11 Log No. 2015-114 Planned Commercial Laboratory Use (FY 2016) Environmental: $340,000 –NSTec: $140,000 –Navarro: $200,000 NSTec Industrial Hygiene: $6,000 NSTec Bioassay: $18,500

12. Page 12 Page 12Title ID 1094 - 09/14/2015 – Page 12 Log No. 2015-114 Waste Treatment, Storage, and Disposal Facilities FY 2015: $23,000 FY 2016 anticipated: To be determined

13. Page 13 Page 13Title ID 1094 - 09/14/2015 – Page 13 Log No. 2015-114 Auditors Quality Assurance Radiochemistry Organic Inorganic Waste Operations Environmental Compliance Transportation Hazardous and Radiological Materials Management

14. Page 14 Page 14Title ID 1094 - 09/14/2015 – Page 14 Log No. 2015-114 Audit Participation FY 2015 audits –Four (4) labs –Four (4) treatment, storage, and disposal facilities (TSDFs) FY 2016 anticipated –Five (5) labs –Three (3) TSDFs

15. Page 15 Page 15Title ID 1094 - 09/14/2015 – Page 15 Log No. 2015-114 EQUESTRIANS?