DSHW-2024-004275

[Date]
Amanda Burton
Chief, Environmental Branch
75 CEG/CEIE
7290 Weiner Street, Building 383
Hill Air Force Base UT 84056-5003RE:UTTR Soil Vapor Extraction Cessation and System CappingUT0570090001
Dear Ms. Burton:
The Division of Waste Management and Radiation Control (Division) has reviewed your request to deviate from the Corrective Action Plan Landfill 5 Waste and Soil Vapor Removal and Operation
and Maintenance Landfill 5 Passive Soil Vapor Extraction System (Request). Hill Air Force Base (Hill AFB) requests cessation of passive soil vapor extraction (SVE) system operation at
the Utah Test and Training Range (UTTR) Landfill 5 by capping the SVE wells but preserving the SVE wells in place in the event operation of the SVE system is needed in the future.
Hill AFB completed removal of Landfill 5 waste materials in 2020 and will continue post-remediation long-term groundwater monitoring and groundwater data assessment per the UTTR Resource
Conservation and Recovery Act (RCRA) Operating Permit. Hill AFB may resume operation of the SVE system if statistically significant increases in groundwater constituent concentrations
are observed.
Based on the removal of Landfill 5 waste materials and continued assessment of groundwater, the Division approves your Request to cease SVE system operation.
If you have any questions, please call Karen Wallner at [phone].
Sincerely,
Douglas J. Hansen,Director
Division of Waste Management and Radiation Control
DJH/KHW/[???]
c:Jordan Mathis, Health Officer, Bear River Health Department
Grant Koford, Environmental Director, Bear River Health Department
Jeff Coombs, Health Officer, Tooele County Health Department
Bryan Slade, Environmental Director, Tooele County Health Department
Elizabeth Tevault, Remedial Project Manager, HAFB[[e-mail]]
Karl Nieman, HW/SW/QRP Program Manager, HAFB
[[e-mail]]
Gabrielle Marinick, DWMRC
[[e-mail]]