ML20058E537
| ML20058E537 | |
| Person / Time | |
|---|---|
| Site: | 07109079 |
| Issue date: | 06/22/1982 |
| From: | Waller W U.S. ECOLOGY, INC. (FORMERLY NUCLEAR ENGINEERING |
| To: | Macdonald C NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| Shared Package | |
| ML20058E540 | List: |
| References | |
| 20880, NUDOCS 8207300053 | |
| Download: ML20058E537 (3) | |
Text
i lh Road, Suita 526 200 S b P O. CO2 7946 Louisville, Kentucky 40207 502 426 7160 o
~
\\
S
's d %'
t *$ w s
y
%3g
_To USEcology f
gerim 5
.fe 3$ 0 B $N,
11 t/
9-4,
/,
je U.S W "
June 22, 1982
~ ~ ' -
- s
~
NII b
/
y gcS
'/
Yg ed**
a, g
.s
'ff
'J, Mr. Charles MacDonald Cu 'j
/
V Chief, Transportation Cer M
n Branch I,
fk
. - x 4
Division of Fuel Cycle and Materials Safety f
,yy b
N ',
US Nuclear Regulatory Commission
.p.#
/
\\g Washington, D.C.
20555
.Q ']
".. ~' hl Docket No. 71-9079 m
4 g,
0
Dear Mr. MacDonald:
This letter is in response toyours dated May 27, 1982 regarding the cask identified in Docket No. 71-9079.
All information submitted to you on February 18, 1982 regarding US Ecology's request to be added as an authorized user and the addition of US Ecology's "as built" drawings for the 9079 may be placed in the public document room.
Please find enclosed copies of the revised "as built" drawings for the cask identified in Certificate of Compliance No. 9079.
These drawings have been revised, since those submitted on February 18 contained several drawing options not utilized on US Ecology's casks and minor drawing errors.
As requested, the differences between US Ecology's "as built" drawings, SK-193 Sheets 1 and 2 Rev. A and those currently referenced in the Certificate of Compliance are as follows:
1.
The cask plate work is fabricated f rom ASTM-A-516, Grade 70 carbon steel.
2.
Items that were listed as " optional" in the C cf C and the referenced drawings which are included on our casks are as follows:
the orientation pins, stainless steel interior cavity.
and drain plug location.
3.
Options deleted were the security wires and the lanyards for liftina lug covers and ratchett binders.
FEEEXEW B207300053 gyogg2 0
DR ADOCK 07109079 d
C 2,0880
h Mr. Charles MacDonald June 22, 1982 Page 2 4.
The drain plug as originally designed has been changed to that currently shown on US Ecology's drawing No. SK-193.
The original drain plug configurations provided a drilled hole penetrating through one of the two inch plates and halfway through the second two inch plate. The loss of material through this hole represents a potential shielding problem in the area directly below the cask.
Secondly, the drain plug is positioned directly along the corner or edge of the cask bottom. This area is susceptible to damage during handling and accident conditions. Therefore, the drain plug configuration shown on SK-193 utilizes a hole only partially through che inner two inch plate, intercepting a lateral hole that penetrates through the 7/8 inch thick inner skin. As can be seen, the pipe penetrates through to the inner two inch steel plate.
This brings the penetration and plug to an area well protected by way of the two inch plate and the external skin.
Therefore, this provides superior shielding and an improved location for the drain plug.
Enclosed is a copy of Nuclear Packaging, Inc.'s letter of March 1, 1982, whereby the units have been certified as meeting all requirements of design and fabrication referenced in the Certificate of Compliance No. 9079.
If you should have any questions, please do not hesitate in contacting us.
Sincerely, hJWfW m
W. K. Waller Chief Radiological Control and Safety Of ficer WKW;db l
i NUCLEAR t FN PACKAGING, INC.
815 SO. 28TH STREET TACOMA, WASHINGTON 98409 - (206) 572-7775 838 1243 March 1, 1982 U.
S.
Ecology, Inc.
9200 Shelbyville Road Suite 526 Louisville, Kentucky 40207 ATTENTION:
W.
K.
Waller
REFERENCE:
1.
U.
S. Ecology, Inc.
P.O. #1301 dated 10/30/81 2.
NuPac WO#FA 3.
USA NRC C of C # USA /9079/A 4.
NuPac Dwg. #FA-20-100D CERTIFICATION Nuclear Packaging, Inc. certifies that all materials and processes and manufactured items provided to U.
S.
Ecology were controlled and tested in accordance with all require-ments of the contract.
Further, that all design and fabrication requirements of the referenced USA NRC C of C have been met.
All records pertaining to this contract are retained in the Nuclear Packaging, Inc. Quality Data File.
A complete quality data package has been forwarded under eeparate cover.
Very truly yours, NUCLEAR PACKAGING, INC.
(
Joe R.
Olivadoti l Quality Assurance Manager JRO/ pro 1