Formerly Used Defense Sites


Tanapag Fuel Farm Removal (17 AST)

The U.S. Environmental Protection Agency ("EPA") and the CNMI Division of Environmental Quality ("DEQ"), with cooperation from the U.S. Army Corps of Engineers ("USACE") will remove some of the old military above-ground ("AST") oil storage tanks and associated contamination from Tanapag Village. In 2006, the U.S. EPA removed six AST as part of a response action, in Tanapag village.

As part of a response action, those six tanks are Tanks #4, #6, #10, #12, #13, and #14.

Currently, thirteen tanks in various states of deterioration remain at the Tanapag village, whereas, four tanks remain at the Sadog Tasi site.

Current Activities

A removal action is planned for the Former Tanapag Fuel Farm in 2016, for the remaining 17 tanks at Tanapag and Sadog Tasi. A Supplemental Remedial Investigation (RI) was done to further delineate the extent of contamination in the soil at the 17 tank locations. In addition, studies were done for the groundwater as well. According to the RI, it has identified that six tank sites (#5C, 17, 37, 38, 39, and 42) with chemicals of potential concern (COPCs) in soil at concentrations exceeding the Pacific Basin Environmental Screening Levels (PBESLs). However, COPCs were not identified in the groundwater. (Former Tanapag Fuel Farm, Contract No. W912DY-10-D-0013)
Based on the results of these previous investigations, seventeen tank locations with ASTs in various stages of deterioration have been identified for removal during this project. Specific goals for the project include the following:
  1. Remove and recycle or properly dispose  of steel tanks, tank remnants, piping, and appurtenances that remain at each tank site.
  2. Remove, crush, and dispose of concrete tank pads for use as haul road materials at Marpi Landfill.
  3. Remove and dispose of contaminated soil with COPC concentrations exceeding the project cleanup goals at the Marpi Landfill.

In 2016-2017, removal action for the remaining seventeen tanks at Tanapag and Sadog Tasi has begun. Removal and recycle or proper diposal of steel tanks, tank remnants, piping was done at the Sadog Tasi site for Tanks #37, 38, 39, and 42. In addition, the removal, crushing of concrete tank pads was conducted at the tank site.



Sadog Tasi Tanks (Tank #37)

Tanapag Fuel Farm (Ruak Property)






Photo: Crushing, and removal of AST tanks at the Ruak Property. Tanks are part of the Tanapag Fuel Farm (along with tanks in Sadog Tasi and Norita Property).


















Last Updated 8/17/2017 4:03:08 PM

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