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Progress of Sandia’s Environmental Restoration Operations

Progress of Sandia’s Environmental Restoration Operations. John R. Cochran Environmental Restoration Operations Project Manager Sandia National Laboratories October 23, 2012.

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Progress of Sandia’s Environmental Restoration Operations

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  1. Progress of Sandia’s Environmental Restoration Operations John R. Cochran Environmental Restoration Operations Project Manager Sandia National Laboratories October 23, 2012 SAND2012--8710C.Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-AC04-94AL85000 1

  2. Overview of Sandia’s Environmental Restoration Project • Mission – Identify, Characterize & Remediate sites where hazardous &/or radioactive materials have been released • Scope: 314 Environmental Restoration (ER) sites • All activities regulated by New Mexico Environment Department (NMED) under the 2004 Compliance Order on Consent (COoC) • Very successful, completely closed 275 of 314 ER sites through the NMED regulatory process • 39 sites in corrective action process 2

  3. Remaining 39 Sites 26 Sites in “Corrective Action Complete” regulatory process • Soil sites undergoing groundwater investigations • “Active mission” sites with deferred corrective action 1 Cable Debris site – Long-Term Stewardship 1 Mixed Waste Landfill 3 Groundwater Areas of Concern (AOCs) • Burn Site • Tijeras Arroyo • Technical Area V 3

  4. Remaining 39 Sites 26 Sites in “Corrective Action Complete” regulatory process • Soil sites undergoing groundwater investigations 3 “Active mission” sites with deferred corrective action 1 Cable Debris site – Long-Term Stewardship 1 Mixed Waste Landfill 3 Groundwater Areas of Concern (AOCs) • Burn Site • Tijeras Arroyo • Technical Area V 4

  5. Remaining 35 ER Sites 26 Sites in “Corrective Action Complete” regulatory process • Soil sites undergoing groundwater investigations 1 Mixed Waste Landfill 3 Groundwater Areas of Concern (AOCs) • Burn Site • Tijeras Arroyo • Technical Area V 5

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  7. Remaining 35 ER Sites 26 Sites in “Corrective Action Complete” regulatory process • Soil sites undergoing groundwater investigations 1 Mixed Waste Landfill 3 Groundwater Areas of Concern (AOCs) • Burn Site • Tijeras Arroyo • Technical Area V 7

  8. 26 ER Sites in Corrective Action Complete Process • Former septic systems or surface testing areas • Completed characterization & where necessary removed contaminated soils • Petitioned NMED for Correction Action Complete (CAC) status 8

  9. 26 ER Sites in Corrective Action Complete Process • NMED solicited public comments on these sites on December 10, 2007 • NMED guidance letter July 27, 2012 • 3 sites granted CAC status • 23 sites continue in CAC process • NMED Public Notice of September 17, 2012 • Requesting comments on granting of CAC Status for most, but not all, of the sites addressed by the December 10, 2007 public notice • Comments due November 16, 2012 • Same notice requesting comment on Hazardous Waste Permit 9

  10. Remaining 35 ER Sites 26 Sites in “Corrective Action Complete” regulatory process • Soil sites undergoing groundwater investigations 1 Mixed Waste Landfill 3 Groundwater Areas of Concern (AOCs) • Burn Site • Tijeras Arroyo • Technical Area V 10

  11. 5 Sites Requiring Groundwater Investigations • Background: NMED April 8, 2010 guidance letter: • Sites 149 & 154 – use existing wells to characterize GW • Sites 8/58 – install 2 GW characterization wells • Sites 68 – install 3 GW characterization wells • Wells installed late summer 2011 • Conducting 8 quarters of characterization 11

  12. Installing New Monitoring Well Site 68 12

  13. Remaining 35 ER Sites 26 Sites in “Corrective Action Complete” regulatory process • Soil sites undergoing groundwater investigations 1 Mixed Waste Landfill 3 Groundwater Areas of Concern (AOCs) • Burn Site • Tijeras Arroyo • Technical Area V 13

  14. Mixed Waste Landfill - Background • 2.6 acre landfill • Operational 1959 to 1988 • GW monitoring & other field investigations began 1990 • Public Hearing on remedy in 2004 • NMED issued Final Order in 2005: Selecting evapotranspirative cover w/ bio-intrusion barrier as remedy • Evapotranspirative cover built in 2009 14

  15. Mixed Waste Landfill Cover 2011 15

  16. Mixed Waste Landfill • Submitted revised Long-Term Monitoring and Maintenance Plan (LTMMP) for the cover to NMED (March 2012) • Plan describes required long-term monitoring of air, soil, biota (animal burrows/soil and vegetation), groundwater and cover maintenance • NMED Public Notice of September 14, 2012 • Requesting public comments on LTMMP by November 13, 2012 • Announcing information meeting LTMMP October 16th 16

  17. Remaining 35 ER Sites 26 Sites in “Corrective Action Complete” regulatory process • Soil sites undergoing groundwater investigations 1 Mixed Waste Landfill 3 Groundwater Areas of Concern (AOCs) • Burn Site • Tijeras Arroyo • Technical Area V 17

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  19. Burn Site GW AOC

  20. Burn Site GW AOC • Contaminated with nitrate (most wells) and perchlorate (1 well) • Nitrate: 0 to 37 parts per million (ppm) (regulatory standard is 10 ppm) • Perchlorate: 0 to 9 parts per billion (ppb) (no drinking water standard established) • Submitted Report to NMED: Results of characterization 10 soil borings and 4 new GW monitoring wells (January 2012) • Ongoing quarterly monitoring of GW • Corrective Measures Evaluation (CME) Report due September 9, 2013 20

  21. Tijeras Arroyo GW AOC

  22. Tijeras Arroyo GW AOC • Contaminated with nitrate (5 wells) and TCE (1 well) • Nitrate: 0 to 33 ppm (regulatory standard is 10 ppm) • TCE: 0 to 9 ppb (regulatory standard is 5 ppb) • DOE/Sandia responsible for < 2 square miles & limited to perched aquifer • NMED approved Groundwater Investigation Report (February 2010) • NMED reviewing CME Report from 2005 • Ongoing monitoring of GW 22

  23. Technical Area V GW AOC

  24. Technical Area V GW AOC • Contaminated with nitrate and TCE • Nitrate: 0 to 14 ppm (regulatory standard is 10 ppm) • TCE: 0 to 19 ppb (regulatory standard is 5 ppb) • Submitted to NMED Well Installation Report for 4 new monitoring wells and 3 deep vapor wells (June 30, 2011) • Ongoing quarterly monitoring of GW 24

  25. SummarySandia’s ER Project • Addressing remaining 35 ER sites • 26 sites in CAC regulatory process: • 3 granted CAC status in July 2012 • NMED requested comments on remaining sites by November 16, 2012 • 5 Soil sites: GW being characterization • MWL: NMED requested public comments on LTMMP, due November 13, 2012 & monitoring GW • Burn Site: Submitted characterization report, CME Report due to NMED Sept 2013 & monitoring GW • Tijeras Arroyo GW: NMED reviewing CME Report, & monitoring GW • Tech Area V GW: NMED reviewing Report on installation of 4 GW wells & 3 deep vapor wells, & monitoring GW. 25

  26. April 2013Remaining 39 32 Sites 23 26 Sites in “Corrective Action Complete” regulatory process • Soil sites undergoing groundwater investigations 3 “Active mission” sites with deferred corrective action 1 Cable Debris site – Long-Term Stewardship 1 Mixed Waste Landfill 3 Groundwater Areas of Concern (AOCs) • Burn Site • Tijeras Arroyo • Technical Area V 26

  27. Questions & More Information • NMED SNL/NM information - http://www.nmenv.state.nm.us/HWB/snlperm.html • UNM Zimmerman LibraryLobo Vault SNL/NM collection - http://repository.unm.edu/handle/1928/10963 • Annual Groundwater Monitoring Report -http://www.sandia.gov/news/publications/environmental_reports/index.html • Sandia National Laboratories Community Involvement - 284-5200 27

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