ML20030A551
| ML20030A551 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point File:Consumers Energy icon.png |
| Issue date: | 10/02/1973 |
| From: | Sewell R CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | Oleary J US ATOMIC ENERGY COMMISSION (AEC) |
| References | |
| NUDOCS 8101090997 | |
| Download: ML20030A551 (3) | |
Text
i i
Regt. coy File Cy,
((g[W COnSum8tS Lp Q
POW 8f
- j gg
'q
^
Company F
...w '
s 7
s.L,:l y
g[5' g General off.ces: 212 West MicNgan Avenue, Jacmson. Mict.. gen 49201. Area Code S17 788 0550 e
v.1
(~
October 2, 1973 Q'b
' '~
e s
- cy '
DfEEfiD'
~
M
'p'bNII.
},Re:
1 Docket 50-155 Mr. John F. O' Leary, Director lhId D 4
License DPR-6 Directorate of Licensing
~i US Atomic Energy Commission suggy Washington, DC 205h5 N
E'n
%s g
Dear Mr. O' Leary:
,.w s-During a recent Big Rock Point Plant site inspection performed by a representative of the Directorate of Regulation, Region III, it was noted that we occasionally raise the set points of the two criticality monitors on the refueling deck to levels above the limits specified by 10 CFR 70.2h(a)(1).
It is specified in 10 CFR 70.2h(a)(1) that criticality monitor-ing devices shall be installed in areas where special nuclear material is handled, stored or used and shall have a preset alarm point of not less than five millirem per hour or not greater than 20 millirem per hour. Occasionally, the background levels exceed the maximum set point 4
allowed by the regulation. This occurs when moving' hot loads to and
..from the fuel pool, when hot material is temporarily stored on the reactor deck and during periods when suspended crud in the fuel poo2 causes a high 1
background until cleanup of the water can be achieved.
In the past, we have raised temporarily the alarm set point during the aforementioned periods of high background radiation levels in the reactor deck area to avoid spurious false alarms. We are in the process of implementing tighter administrative control of these set point changes. These tighter controls will:
1.
Allow increasing the alam set points to levels above those expected during the transfer of loads near the monitors which are expected to produce gamma fields greater than or equal to 20 millirem per hour.
2.
Allow increasing the alam set points to levels of 10 milli-Rem per hour greater than background for periods of time when the fuel l
pool or other temporarily stored material causes background levels to be greater than or equal to 20 millirem per hour.
/
WSg 6*t-n 190/07097
I I
Mr. John F. O Leary, Dirsetor 2
.0stob r 2, 1973 Subparagraph (d) of 10 CFR 70.2h states, "Any licensee who believes that good cause exists why he should be granted an exemption in whole or in part from the requirements of this section may apply to the Commission for such exemption. Such application shall specify his reasons for the relief requested."
We believe that good cause exists to be exempted from this regulation as described above and hereby request exemption. Normal fuel
. handling activities, except for occasionally causing crud deposition in the fuel pool thus higher than normsl background radiation levels, do not cause background levels to exceed the alarm set points. In addition, the physical configuration of the refueling deck is such that alarms cannot be relocated such that their Lackground radiation levels are sur-ficiently low during the occasions described above without defeating _the purpose of their original installation.
Yours very truly, 4Y BBS/ds Ralph B. Sewell Nuclear Licensing Administrator CC: JGKeppler, USAEC i
I e
~.
~
AEC i 'TRIBUTION FO't PART 50 DOCKET }#
3 RIAL (TDIPORARY FORM)
CONTROL NO:
7402
\\'
t FILE:
PROM:
DATE OF DOC DATE REC'D LTR MEMO RPT OTIER C:nsumers Power Company J ckson, Michigan 49201 Ralph B. Sewell 10-2-73 10-4-73 X
TO ORIG CC OTHER SENT AEC PDR X
Mr. O'Learv 1 siened CLASS UNCLASS PROP INFO INPUT NO CiS REC'D DOCKET NO:
XXX XX 40 50-155 DESCRIPTION:
ENCLOSURES:
Ltr requesting change to Tech Specs to allow tha occasionally raising of set points of two
{ !{ '
}"
criticality monitors........
10 PLANT NAME: Big Rock Point Plant FOR ACTION /IhTORMATION 10-4-73 AB BUTLER (L)
SCIMENCER(L)
MIC4 ANN (L)
REGAN(E)
W/ Copies W/ Copies W/ 9 Copies W/ Copies CLARK (L)
STOL?(L)
DICKER (E)
W/ Copies W/ Copies W/ Copies W/ Copies COLLER(L)
VASSALLO(L)
KNIGHION(E)
W/ Copies W/ Copies W/ Copies W/ Copies KNIEL(L)
SCPF?.EL(L)
YOUNGBLOOD(E)
W/ Copies W/ Copies W/ Copies W/ Copies
~
~N INTERNAL DISTRIBUTION REG FILE TECH REVIEW DENTON A/T IND LIC ASST y
lENDRIE GRIMES BRAIIMAN P OGC, ROOM P-506A SCHROEDER GAMMILL y DIGGS (L)
SAL 7ZMAN
/ MUNIZING/ STAFF MACCARY KASTNER GEARIN (L)
CASE KNIGHT BALLARD GOULBOURNE (L)
PLANS GIAMBUSSO PAWLICKI SPANGLER LEE (L)
MCDONALD MAIGRET (L)
V DUBE BOYD SHA0 MOORZ (L)(BWR)
STELLO ENVIRO SERVICE (L)
DEYOUNG(L)(PWR)
HOUSTON MULLER SIEPPARD (E)
IhTO
/ SKOVHOLT (L)
NOVAK DICKER SMITH (L)
C. MILES P. COLLINS ROSS KNIGHTON TEETS (L) r ALLEN CABELL IPPOLITO YOUNGBLOOD WADE (E)
RFC OPR TEDESCO REGAN WILLIAMS (E)
WILSON (L)
V FILE & REGION (3)
LONG PROJECT LDR MORRIS LAINAS STEELE BENAROYA HARLESS VOLTRER EXTERNAL DISTRIBUTION GD 1 - DCAL PDR v 1 - DTIE(ABERNATHY)
(1)(2)(10)-NATIONAL LAB'S 1-PDR-SAN /LA/NY
/ 1 - NSIC(BUCHANAN) 1-R.Schoonraker,0C,GT, D-323 1-GERALD LELLOUCHE 7
1 - ASLB(YORE /SAYRE/
'l-W. PENNINGTON, Rm E-201 GT BROOKHAVEN NAT. LAB WOODARD/"H" ST.
1-CONSULTANT'S 1-AGMED(WALTER K0 ESTER p d6 - CYS ACRS W N *MkSENT TO LIC ASST.
NEWMARK/BLUME/AGBABIAN EM-C-427-GT R. DIGGS 1-GERALD ULRIKSON...ORNL l-RD.. MULLER..F-309 GT
_.r