Dig carefully, Fairfax. Area of asbestos-containing rock is expanding

By Michael Neibauer, http://www.bizjournals.com

fairfaxcountyWhen most people hear asbestos, they probably think of the toxic, fibrous mineral once commonly found in construction, insulation and fireproofing materials.

When Fairfax County builders hear asbestos, they may think deeper — as in two to three feet beneath their feet.

Roughly 10.5 square miles of the county, 2.5 percent of its total size, contain “problem soils” that may include naturally occurring asbestos, specifically actinolite and tremolite minerals. It is found along the Piney Branch Complex, a vein of bedrock locally known as greenstone for its green or blue-green hue.

And the area of problem soils is getting larger.

The Fairfax County Board of Supervisors has scheduled an Oct. 15 public hearing to consider an amendment to the 2011 county soils map that will increase the potential area of naturally occurring asbestos from 10.53 to 10.67 miles. It is a slight increase, based on field work by the Northern Virginia Soil and Water Conservation District, but it is one that all developers must be aware of, as it will affect how they proceed with construction projects. Read more

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Posted on November 30, 2015, in Asbestos, Environmental and tagged , , . Bookmark the permalink. Leave a comment.

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