Re: Radon Flux Monitoring Methods

["J. Andrew Tompkins" <jatalbq@mindspring.com>]

The Yucca Mountain Project has measured environmental levels of radon with
electrets for many years.  Contact Kevin Shenk 702-295-5030 to see what
data has been published.


Andy Tompkins
Woodstock, GA

jatalbq@mindspring.com

At 02:00 PM 5/5/99 -0500, you wrote:
>Hey, all you UMTRA veterans:
>
>We are preparing to perform radon flux measurements atop a large waste
pile with
>radon barrier in accordance with 40 CFR 61, App. B, Method 115, to
demonstrate
>compliance with the 20 pCi/m2-s flux limit.  My question is: Has anyone ever
>used a measuring device OTHER THAN the large-area activated charcoal
collector
>for this purpose? In 40 CFR 192 it says "This monitoring shall be conducted
>using the procedures described in [the above reg], or any other measurement
>method proposed by a licensee that the NRC or agreement state approves as
being
>at least as effective as EPA Method 115 ...". 
>
>We have previously used the LAACC to measure flux on a temporary storage pile
>that has since been excavated and permanently disposed of. We found that the
>LAACC method was quite tedious (bake the charcoal, let it cool, load it
into the
>collectors, embed the collectors in the ground with at least one inch of soil
>covering the lip of the collector, go out and get them the next day,
unload the
>charcoal, can the charcoal with a canner, and hurry and ship it off to the
lab
>within 24 hours). Has anyone ever used electrets for this purpose?  
>
>One potential monkey wrench in this situation: We are not an NRC licensee;
>rather we are a DOE environmental restoration site with 40 CFR 61 and 192 as
>ARARs under CERCLA.
>
>Your help is most appreciated.
>
>Elizabeth Algutifan,
>Health Physicist
>Weldon Spring Site Remedial Action Project
>St. Charles, Missouri
>Elizabeth_Algutifan@wssrap-host.wssrap.com
>
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information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html