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benesch engineers. scientists . planners

09/30/2013

Jennifer L. Bishop Health Physicist 2443 Warrenville Road, Suite 210 Lisle, IL 60532-4352

Dear Jennifer,

Alfred Benesch & Company 222 N. Washington Square, Suite 200

Lansing, Ml 48933-1800 www.benesch.com

p 517-482-1682 F 517-482-7180

Alfred Benesch & Company needs to amend its current material license (21-35013-01) to remove the following address from our license 222 North Washington Square, Suite 200, Lansing, Michigan referencing Control Number 580628. All licensed materials have been removed from this location. Attached to this letter are the latest Leak Tests done on both our gauges.

If you need anything else don't hesitate to call at 517-482-1682 (Office) or 517-927-5482 (Cell).

Sincerely,

Brooks Kirschenbauer, RSO

RECEIVED OCT 0 7 2013

Troxler Electronic Laboratories, Inc. 3008 Cornwallis Rd., P.O. Box 12057

Research Triangle Park, NC 27709

Tel: (877) 876-9537 Fax: (866) 391-2759

License: NC 032-0182-1

BROOKS KIRSCHENBAUER BROOKS KIRSCHENBAUER 222 N. WASQ.

Cust ID: 12749

SUITE 200 LANSING, Ml 48906

LEAK TEST CERTIFICATE

DEVICE:

Model: MC1DRP SeriaiNo: 30101260

LEAK TEST ANALYSIS:

Sample collected on: 07/29/2013

Sample analyzed on:

Analyzed by: ~-

------~ .. -

r-c onversion factor (cpm/Bq)

R:: ackground measurement (cpm)

ample measurement (cpm)

r: ctivity (Bq)

r IM L

in. Detectable Activity (Bq)

08/06/2013 10:19:50 A

NL

ALPHA

1.25E+01

0

0

I <MDA

I

I 3.8E-01

This certifies that the leak test results are:

Position: 58

--BETA-GAMMA

1.97E+01

24

16

<MDA

1.3E+OO I

~ Less than 185 Bq (0.005 uCi) 0 Greater than 185 Bq (0.005 uCi)

Rev. 9/2006

-~'"'_....,.,_ ,_... ~-~~--··-

r·----··-;ECEIVED

AUG 12 20\3

r:... BENESCH f':~. CO.

I.-~!:~~N~, MICHIGAN

Troxler Electronic Laboratories, Inc. 3008 Cornwallis Rd., P.O. Box 12057

Research Triangle Park, NC 27709

Tel: (877) 876-9537 Fax: (866) 391-2759

License: NC 032-0182-1

BROOKS KIRSCHENBAVER ALFRED BENESCH & CO.

Cust ID: 12590

222 NORTH WASHINGTON SQ. SUITE 200 LANSING, Ml 48933

LEAK TEST CERTIFICATE

DEVICE:

Model: 3411 Serial No: 18376

SEALED SOURCES:

Serial No. 50-7882

47-13826

Measure Date 01/29/1990

01/18/1990

LEAK TEST ANALYSIS:

Nuclide Cs-137

Am-241:Be

Sample collected on: 06/15/2013

GBq 0.296

1.48

mCi 8

40

Sample analyzed on: 06/21/2013 2:07:26 PM Position: 21

Analyzed by:

I I Conversion factor (cpm/Bq) I

HEB

t I l~ackground measureme_n_t _<c_pm_l ___ ______,_

i Sample measuremeni (cpm)

ALPHA I 1.25E+01 I

0 I I

0 ! I

BETA-GAMMA

1.97E+01

24

19 I --~------- +------· r Activity (Bq) ---- I <MDA

I <MDA I I

--1--------f------------ ---1

4.2E-O·I 1.3E+OO I Min. Detectable Activity (Bq) I ~----------------------------- ---------·

This certifies that the leak test results are:

i;[l Less than 1'85 Bq (0.005 uCi) D Greater than 185 Bq (0.005 uCi)

Rev. 9/2006

----l I

Jennifer L. Bishop Health Physicist Nuclear Regulatory Commission 2443 Warrenville Road, Suite 210 Lisle, IL 60532-4352