Re: [CPEO-MEF] indoor air sampling

[christinebettencourt@earthlink.net]

     I can't answer your question on why the vapor tests are so low, but I
can tell you a crooked strategy at Fort Ord to get their numbers down on
toxic testing and here's an example.  The beach firing ranges, first they
raised the allowable contaminant level for lead to 1860 ppb, up from 400.
Then when they couldn't get the numbers to fit their cleanup they calculated
in the parking lot and walkways.  Bingo! they got it down, at least on
paper.
     When the state went to receive it so they could make it a state park
their tests deemed it too toxic, so it sits alone after killing all those
National Marine Sanctuary animals for nothing, not to mention wasting tax
payer dollars and the health injuries to those driving by on the freeway or
living next to the pile on base they hauled it to where they sifted it for
the lead and copper.  The sifted metal for sold for $7,000,000.

----- Original Message -----
From: CPEO Moderator <cpeo@cpeo.org>
To: <cpeo-military@igc.topica.com>
Sent: Thursday, February 27, 2003 7:21 AM
Subject: [CPEO-MEF] indoor air sampling


> The following was posted by Anne Callison <Awbarbour@aol.com>
> ____________________________________________________
> Lenny,
>
> Thanks so much for your comment on the new EPA model.  A couple of
> questions - post to the listserve if beneficial.  The Colorado
> Department of Public Health and Environment is going
> along with the Air Force and our privatized contractor saying that the
> levels of TCE are testing so low that further indoor air testing will
> not be required. There are approximately 200 homes known to be over the
> plume coming off Lowry AFB - 13 homes were tested.
>
> Does anyone know how soil gas vapor concentrations relate to TCE levels
> at bedrock or simply the source below for the vapors?  For instance, if
> the measurement at the wellhead is 120 ppb are the soil gas vapors
> greater or less than they would be if the measurement at the wellhead is
> 25 ppb?
> What effect does time have on the soil gas vapor as it rises even if its
> source is being diluted down below?
>
> Call me unscientific, but these 200 homes have been over a plume which
> began some 60 years ago, and this level of testing seems ridiculously
> low. And we know from previous studies that monitored natural
> attenuation (MNA) is not occurring.  I believe the plume's levels are
> dropping through dilution and simple spread of the plume over a wider
> area.
>
> Your comments and those of others would be greatly appreciated.
>
> Anne Callison
> Lowry AFB RAB
>
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