Environmental Enlightenment #215
By Ami Adini - Reissued August 24, 2017

This is a SHORT, LIGHT and SIMPLE newsletter. Its purpose is to rekindle in the initiated terminology they have once learned, and enlighten the uninitiated on terms they may have heard but never knew the meaning of.

Power of Simplicity
The EPA’s Citizen’s Guide to Cleanup Technologies

Series 14: Monitored Natural Attenuation

See our Newsletter, Environmental Enlightenment #200, for introduction to one highly valuable, plainly written series of Citizen’s Guides published by the EPA at http://www.clu-in.org/products/citguide


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


Who or what that is monitored is being watched.

Photographer: D. Gordon E. Robertson; licensed under GNU Free Documentation License

And a thing that is attenuated is being reduced, becoming less in size, quality or amount.


For cases in which there is no immediate risk to public health or the environment, or in cases where removal (cleanup, remediation) of the contaminants is not practical for reasons of costs or lack of proper technologies—such cases may resort to leaving the contamination in place to “rot” under watchful eyes.

Free, Public Domain Image: Seaman Using the 'Big Eyes' Binoculars on an Aircraft Carrier Stock Photography

We call this Monitored Natural Attenuation or MNA for short.

In opting for MNA, one should look carefully into the planned time span and project the cost of monitoring along the way. MNA may stretch into decades with potential impediments on transactions with the land.

With careful consideration of all options and wise planning, MNA can be employed to enable transactions with and redevelopment of contaminated land.

Go to the EPA’s Citizen’s Guide to Monitored Natural Attenuation http://www.clu-in.org/download/Citizens/a_citizens_guide_to_monitored_natural_attenuation.pdf for the rest. It is simple and fun to read.


You can find past issues of "Environmental Enlightenment" at www.amiadini.com with wealth of information about issues concerning assessment and cleanup of contamination in the subsurface soil and groundwater.

Call me if you have any questions. There are no obligations.

Ami Adini Environmental Services, Inc.
Environmental Engineering Consultants & Contractors
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818-824-8102; mail@amiadini.com

Ami Adini is a mechanical engineer, California Registered Environmental Assessor, Level II (Exp.), and president of AMI ADINI ENVIRONMENTAL SERVICES, INC. (AAES), an environmental engineering consulting firm and general contractors specializing in all phases of environmental site assessments, rehabilitation of contaminated sites and upgrading of underground storage tank facilities. AAES provides practical solutions to environmental concerns using the highest standards of ethics and integrity while providing its clients with maximum return on their investments.