The U.S. Environmental Protection Agency proposes to modify institutional controls currently in place at the Avtex Fibers Superfund Site, located in Front Royal, Virginia. This proposed Explanation of Significant Difference, or “ESD,” specifically targets Operable Units (OUs) 7, 8 and 10 of the site to ensure continued protection of public health and the environment, while also facilitating future reuse. The EPA is required to announce this modification and invites public comment on it during a 30-day public comment period which begins on September 14, 2011 and ends on October 14, 2011.

Proposed Modifications
• For OU 7, EPA proposes to modify the Ecologically Protective Backfill Values and include a performance
standard for the pH of the upper six inches of soil to be no less than 5.5 prior to seeding.
• For OU 7 and OU 8 and OU 10 , EPA proposes to separate the existing conservation easement at this
site into three separate easements to better account for changing uses and stewardship of the properties
comprising this site. This is proposed to help facilitate the specificity of future development. The new
easements will provide the same restrictions on future use to maintain long term protectiveness of the remedy.

EPA welcomes your input! Send comments electronically:
lose.kate@epa.gov
Or send in writing to:
Kate Lose, Remedial Project Manager
1650 Arch Street (3HS23)
Philadelphia, PA 19103
(215) 814-3240
For more information visit
http://www.epa.gov/reg3hscd/npl/VAD070358684.