ML19343C412

Advises That License R-60 May Be Terminated When Independent Surveys Confirm That Residue Radioactivity Levels Meet NRC Criteria for Facility Release to Unrestricted Access.W/O Encl Criteria & Reg Guide 1.86

ML19343C412
Person / Time
Site:	05000141
Issue date:	03/17/1981
From:	Stolz J Office of Nuclear Reactor Regulation
To:	Finston R STANFORD UNIV., STANFORD, CA
References
NUDOCS 8103240102
Download: ML19343C412 (2)

Text

_

fG W94

' 9'o,%

- p

[F UNITED STATES 8

NUCLEAR REGULATORY COMMISSION W ASHINGTON, D. C. 20S$5 t,,

8 March 17,1981

. %, +... f YbE U '-

- Docket No. 50-141 O

\\ \\\\

'; %g"?'.US j g ISSf r

-G Dr. Roland A. Finston Director, Health Physics and Biosafety Id *%gg jd y

Stanford University 67 Encina Hall

'N p

Stanford, California 94305 9

Dear Dr. Finston:

By letters dated December 9,1977 and June 3,1980 you provided data on the residual activity at the dismantled Stanford Research Reactor. You further requested temination of reactor License No. R-60.

As discussed with you, we have now determined the levels of radiation that would be acceptable for release of the Stanford reactor facility to unrestricted access.

Enclosure No.1 provides that criteria.

Enclosure No. 2 (Regulatory Guide 1.86) is also provided for your information.

Therefore, wel can terminate 1 License No. R-60 when our independent surveys confirm that you have removed sufficient residual radioactivity to meet the criteria of Enclosure No.1.

~ By copy of this letter to the NRC Region V Orfice, we request that they complete a confirmatory survey when you notify the NRC that your facility is in compliance with Enclosure No.1 criteria.

incerely, I

n Jo n F. Stolz, Chief )

0 rating Reactors Branch #4 vision.of Licensing o.

Enclosures:

1.-

Radiation Levels for Release te Unrestricted Access 2.

Regulatory Guide 1.86 _ _

cc w/ enclosure 1 only:

See next page B108240 \\O

of Dr. Roland A.' Finston

e cc.w/ enclosure 1 only

'Mr. F. A. Wens 1'awski

~

U. ~S. Nuclear Regulatory Commission, Region V -

Office of Inspection and Enforement 1990 N. California Boulevard, Suite 202 Walnut Creek, California.. 94596,

~

Attorney General 555 Capitol Mall Sacramento, California 95814 "

California Department of Health ATTH:

Chief,. Environmental Radiation Control Unit-Radiologic Health:Section h m.v -

714 P Street,1 Room 498 T.w.

Sacramento, Cali omia f 95814 Sacramento. County..

Egg,,

Board of. Supervisors ': n Jr 827 7th Street, Room 4247 2~~

Sacramento,: California 95814,

- /-

.,h--

"gi: l}

, p,y.

",4. ~ ".< 3 - -f

[ o.N

-*7 F

G"-

~_

~ ;-Q.;

'e

-; ;. g' ^

-+

g+.,,D.e. m.,

s

., = -

u

..?

} -

i.gu1%.

i

. r g.

~v

.s..

. ;1:mk w :.

A*

~~

4

$e n-i

.m.s

?-?]Q;_ _:j:-W ~ -

~

- ~

c =:. ::. s v

• Ey.-.{ _, -,,-.

3.,..,.7.

,3,_

C@,{

y,,

.A

~ ~.

~$ik?$$

l

~

4*

. w w:.

e.

' +, -

u ~.

• Q '.

--[_$ - +

~

"li",*.*

s

-y gm.

L m

. c RADIATION LEVELS FOR RELEASE OF REACTOR

~

FACILITY TO UNRESTRICTED my

"- ~

ACCESS

~

Surface Contamination Surfaces must be decontaminated to levels consistent with Table 1 of Reg. Guide 1.86.

Radioactive Material Other Than Surface Contamination (Co 60, Eu 152, Cs 137)

Co 60, Eu 152 and Cs 137 that may exist in concrete, components, structures, and soil must be removed such that the radiation leval I

from these isotopes is less than SaR/hr above natural background l as measured at one meter.from surface.

Generg Site survey procedures acc ptable to the NRC must be used.

A

.y I) Radiation.from naturally o curring radioisotopes as measured at a comparable l uncontaminated structure:or exterior soil surface.

1 *. *i.

,h"i.)4 -

=-.

v i...'

-y 9 %.;

e

$ &