2016-02-19 – EPA – Pb210 by Gamma LEPS Data- Enformable Latty Ave sample- Eberline 16-01135

2016-02-19 - EPA - Pb210 by Gamma LEPS Data- Enformable Latty Ave sample- Eberline 16-01135

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To:
From:
Safadi, Amer[[email protected]]; Vann, Bradley[[email protected]]
Juett, Lynn
Sent: Fri 2/19/2016 5:14:16 PM
Subject: RE: Pb210 by Gamma LEPS Data – Enformable Latty Ave sample – Eberline 16-01135
From: Safadi, Amer
Sent: Friday, February 19, 2016 10:52 AM
To: Vann, Bradley
Cc: Juett, Lynn
Subject: RE: Pb210 by Gamma LEPS Data – Enformable Latty Ave sample – Eberline 16-01135
From: Vann, Bradley
Sent: Friday, February 19, 2016 10:36 AM
To: Safadi, Amer
Cc: Juett, Lynn
Subject: FW: Pb210 by Gamma LEPS Data – Enformable Latty Ave sample – Eberline 16-
01135
WLLFOIA4312 – 001 – 0015820
From: Doster, Branden•=.:==~=~==”‘-‘=~~=”-“-•
Sent: Friday, February 19, 2016 10:32 AM
To: Evans, Erin ‘[email protected]
Garoutte, Jonathan
Mahler, Tom
Cc: Vann, Bradley Schmidt, Aaron
Juett, Lynn
Subject: RE: Pb210 by Gamma LEPS Data – Enformable Latty Ave sample – Eberline 16-01135
WLLFOIA4312 – 001 – 0015821
From: Marco Kaltofen t:..==~====~==-‘-”
Sent: Thursday, February 18, 2016 3:39 PM
To: Taylor, Shantell
Cc: lhixson; Robert Alvarez
Subject: Latty Avenue Site – New data from Eberline Laboratory
Dear Ms. Taylor,
You may recall that a couple of weeks ago we spoke about a particularly high activity sample we
collected in our study of radioactive materials related to the West lake Landfill in the St. Louis
area. We have accumulated further data on this sample. It is our believe that it would be more
protective of the public health to provide your office with these data immediately, rather than
wait months for scientific publication.
I have attached the interim data report from Eberline Laboratory of Oak Ridge, TN. Eberline is
performing an analysis of this material on our behalf. (See attached Excel file number 06-01135)
This work is part of our follow-up to our recent study published in the Journal Environmental
Radioactivity (attached).
The sample was collected in the railroad spur area adjacent to Coldwater Creek at Latty Avenue
in Hazelwood, MO. As you can see from the attachment prepared by the laboratory, 230-Th
activity is 10,923 pCi/g. Total Uranium activity in this sample is 854 pCi/g, with an enrichment
level for 235-U of 4.1 %, which is about average for civilian grade nuclear fuel materials. The
total sample activity is 320 KBq/kg (320,500 Bq/kg). These numbers are very significantly
elevated above all pertinent environmental standards.
We also have a great deal of back up data for this sample. In particular, the microscopic analysis
shows that the material contains respirable particles with 10 to 46 % by weight pure uranium.
Three of the files labelled Latty, particle 4, show examples of this microscopic analysis.
Given the elevated activity of the sample in this location, we would like to get a copy of this data
to the Corps of Engineers office in St. Louis. If you prefer that the COE get any notice directly
WLLFOIA4312 – 001 – 0015822
from the MO AGO, that is more than acceptable to us. If not, if you have a preferred contact at
the COE, we would be happy to send the information directly.
Please let me know if you have any questions about these data.
Very truly yours,
Marco Kaltofen, PhD, PE (Civil, MA), C. NSE
Boston Chemical Data Corp.
2 Summer Street, Suite 14
Natick, MA 01760
Affiliate Research Engineer
Nuclear Science and Engineering Program
Dept. of Physics
Worcester Polytechnic Institute
cell. (508) 259-6717
office ( 508) 314-9334
cc: L Hixson, R. Alvarez
WLLFOIA4312 – 001 – 0015823
This email message, including the attachments, is from the Missouri Attorney General’s Office.
It is for the sole use of the intended recipient( s) and may contain confidential and privileged
information, including that covered by§ 32.057, RSMo. Any unauthorized review, use,
disclosure or distribution is prohibited. If you are not the intended recipient, please contact the
sender by reply email and destroy all copies of the original message. Thank you.
WLLFOIA4312 – 001 – 0015824