ML20039B845
| ML20039B845 | |
| Person / Time | |
|---|---|
| Issue date: | 11/16/1981 |
| From: | Pettengill H NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | Ramsey R ENERGY, DEPT. OF |
| References | |
| CON-FIN-B-2217, REF-WM-40 NUDOCS 8112240006 | |
| Download: ML20039B845 (2) | |
Text
~
f-4mt40 u)MOR Wol.ss
~
DISTRIBUTION IO1UR s/f 3426.3 FIN B2217 _
lOIUR w/f IOIUR r/f FIN B2217/WM-40/GGE/ME/81/11/6 IOI C/f N31SS r/f IE Reg IV GEadie HPettengill NOV l 6 m Rscarano WMUR:GGE BF1 sacr FIN B-2217 WM-40 JLinehan D>tartin Mr. Robert W. Ramsey RBrowning Program Manager, Remedial Action Programs J31artin Nuclear Waste Fbnagement Programs Of fice of Nuclear Energy, NE-301 U.S. Department of Ea=rgy Washington, D.C.
20545 Gentlemen:
As you are aware, Battelle Pacific Northwest Laboratories (PNL) is currently conducting extensive radiological surveys throughout Edgemont, South Dakota in order to determine the number of properties containing elevated levels of residual radioactivity. To date, about 50% of the residence units surveyed (i.e., over 358 structures), on the basis of exceeding 0.01 WL on a grab sample, raay require long-term radon progeny measurements to determine if the annual average Working Level for that structure would exceed 0.015 WL.
However, due to the lack of available equipment to perform long-term surveys in a reasonable time period, the NRC directed its contractor to develop alternate means to determine whether an area around or under a structure contains residual radioactivity.
An alternative termed a mini-engineering assessment, has been developed and implemented on a trial basis.
Pending peer review and acceptance, the mini-engineering assessment would measureably reduce the number of necessary long-term radon progeny measurements. This technique would, of course, have direct applicability to your remedial action progams and could result in large time and money savings.
Additionally, PNL has already in use a protocol for full-engineering assessments to evaluate the extent of residual radioactivity on a property, and the necessary remedial actions and costs.
In fact, with the exception of those residences requiring long-term radon progeny
(
measurements, full-engineering assessments have been completed on almost all of those structures which failed the Ra-226 or gamma radiation level i
criteria.
DIST :
TICKET NO:
8112240006 811116 0FC PDR WASTE WM-40 PDR --:
NAME :
DATE :81/11/09
\\
/
Bf
j-o.
FIN B2217/WM-40/GCE/ME/81/ll/6 N l 6 lggl Your timely review and comment on both these protocols would be greatly appreciated.
Sincerely, Harry J. Pettengill, Section Leader Operating FacilitiesSection II Uranium Recovery Licensing Branch Division of Waste Management
Enclosures:
Mini and Full Engineering Assessment Protocols - Sex id / nod i k S'I # # '"/#I cc: John Themelis, Grand Junction, C0 DIST:
TICKET NO:
OFC :
v
- @-f- ;- - :. M R _._ y / / W R 7
"AME -
/Y
..G E a d i ': Jt _.jlP_et_We ill [ RScarano DATE :81/11/
81/11/ /b 81/11/