The EPA’s Citizen’s Guide to Cleanup Technologies Series 12: Capping

Aug 11, 2017

Environmental Enlightenment #216

See our Newsletter, Environmental Enlightenment #200, for introduction to one highly valuable, plainly written series of Citizen’s Guides published by the EPA at

With this issue we introduce the EPA’s Citizen’s Guide to Phytoremediation. You can reach it through the hyperlink under the blue header below.

We have the baseball cap.

And we have the sanitary landfill cap.

Caps block an entry or prevent an exit; depends on where the protected receptor is relative to the injurious factors.

The goal of environmental protection is practical defense of public health and the ecosystem.

In many cases, encapsulation of contaminated substances in place will provide better and safer protection than disturbing them in attempts at removal.

Capping can be integrated into a commercial, even residential, redevelopment of the site.

It can be a parking lot pavement.

Or a solid-floored, bottom-sealed structure.


Submit a Comment

Your email address will not be published. Required fields are marked *

Related Articles

Phase I Environmental Site Assessment—Probabilities and Possibilities

Phase I Environmental Site Assessment—Probabilities and Possibilities

Environmental Enlightenment #245Probability is the extent to which something is probable; the likelihood of something happening or being the case. (Google) Probability is a scale of certainty: How certain is it that an undeveloped piece of land will be contaminated...

Environmental Base Line

Environmental Base Line

Environmental Enlightenment #175 In dealing with physical matters, absolutes do not exist. One establishes value only by comparison. A “base line” is any precisely determined line forming a side of a triangle so that when the adjacent angles are measured, the relative...



Environmental Enlightenment #313 If you dip into environmental reports, you will likely run into the term basin.   The essential concept of basin is water container (derives from Latin bacinus, bacca) A natural depression on the earth's surface, typically containing...