|Date:||Mon, 29 Nov 1999 11:48:44 -0800 (PST)|
|Subject:||Re: [CPEO-MEF] Natural Attenuation|
The responses to the message listing different types of natural attenuation, or even active bioremediation, as synonyms for no action focused on the theory of operation and have missed a major point - implementation. Generally a more detailed site characterization is required to properly implement a natural attenuation or in situ bioremediation alternative than a more active alternative such as pump and treat. Site characterization continues during more active alternatives such as pump and treat as the contaminants are continuously extracted and monitored while the system is operated. Such continuous characterization is generally not a part of natural attenuation alternatives and bioremediation alternatives. At many sites selected for natural attenuation, site characterization is actually less complete than would be the case for an active remedial alternative. In practice, many facilities fail to properly characterize the site before selecting natural attenuation or in situ bioremediation and include inadequate monitoring in their natural attenuation and bioremediation alternatives. Until the government and industry learn to police unscrupulous operators and properly implement natural attenuation and bioremediation alternatives, the public will continue to equate natural attenuation and bioremediation alternatives with no action. The petroleum industry abused land farms (plowing petroleum sludge into soil) for decades until the EPA effectively banned them. I hope that the future of natural attenuation and bioremediation alternatives will be different. Bill Smith Sierra Club San Francisco East Bay Military Conversion Task Force WJASmith@AOL.com Voice and Fax: (510)522-0390 You can find archived listserve messages on the CPEO website at http://www.cpeo.org/lists/index.html. If this email has been forwarded to you and you'd like to subscribe, please send a message to: email@example.com _____________________________________________________________ What's hot at Topica? Sign up for our "Best New Lists" newsletter and find out! http://www.topica.com/t/8
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