ML20107C255
Text
'r
(
i
=
(-
~
Jersey Central Pkw j & Light Company
' A hN}
M ADISoN AVENUE AT PUNCH BOWL' Ro Ao e MORRiSToWN, N.J. 07660 e 539 6111 January ~11, 1973 kir. J. P. O'Reilly, Director Directorate of Regulatory Operations, Region 1 -
United States Atomic Energy Commission 970 Broad Street" Newark, New Jersey 07102 '
Dect Mr. O'Reilly:
Subject:
Oyster Creek Station Docket No. 50-219 Fuel Channel Study Program The purpose of this letter is to provide the information requested by your Mr. F. Cantrell of Mr. T. J. McCluskey, our Oyster Creek Station Superintendent, as a matter of interest, regarding our fuel channel study program.
During the last refueling outage (May 1972), a visual obser-vation of the outside surfaces of our fuel channels revealed whiteish-pale green deposits.
In some cases, the deposit was seen to have spalled off.. Samples of the scale deposit were retrieved and analyzed.
The results indicated that the deposits were a zirconium oxide.
A few similar deposits were also recovered from the control rod drive upper screens.
To further understand this observation, a program was in.tiated to retrieve samples of channels exhibiting the deposit /
spalling.- These samples will undergo detailed chemical and metallurgical analysis.
Currently, the samples have been cut from the channels and are stored in the Oyster Creek spent fuel 1
pool awaiting shipment to Vallecitos Nuclear Center.
The deposits observed on the channels do not pose a L
possible safety problem in regard to channel strength or the design use of the channels. The measured thickness of the chips range between 0.003 to 0.005 inches; and consequently, the loss
)
of this material would not be expected. _to have an effect on channel strength.
1 There has been no indication of any control rod drive l
problem caused by this flaking.
The control rod drive hou 'ngs n
9604170290 9602 0
\\
+
PDR DEKOK95-250.,
~ VLN" _
1
~.....
i.' sJ i '.
,g,.
f.-
j-
,g 9,
Mr.;J. P.'.0'Reilly Page II.,,
- January 11, 1973 t
i-
'did have radiation levels that were-higher than. that tormally
~
. encountered -during. control ; rod' drive maintenance. ~ Any. changes -
Lin observed ' control rod insertion times and' stall' flows which
- are verbally transmitted 'to Mr.' Cantrell on a' regul'ar basis
.are attributable.to normal seal wear.
'I trust' this letter is fully. responsive to your_
l interest : for.information oni our' fuel channcI study program.
i Very truly yours, T
/'
w/j-m
~
p I
- I.
Donald A.'Ross i-Manager, Nuclear Generating Stations il pk 2
f^
om s
b j'.
1j.
?
3 i
1 i
a 1
e i
e I
i I
i A
b i
^
)
\\
\\
w
+ 5
.v3 tHAnL11S B. WU; i, Ph.D., consulting Biologist n ia,,,un,,,,,i,.
e.G. ADO.MA "A.19 0 9 sis.e u.7 a i ll' January 1973 Mr. H. J. Williams-GPU.Scrvice Corporation-260 Cherry Hill' Road Parsippany, New Jersey 07054
Dear Mr. Williams:
-On January 9th Mr. Roy' Younger, of Res'ource Management, Inc.,_
and l visited:0yster Creek as requested to investigate the report-ed fish kill. -This letter.is a report on the results of our in-vestigation.
At the' Route 9 bridge downstream to the end of the parking lot the stream was open'with' stretches of rim ice along the shore.
~ Water temperature (at 1325) was 34 F. at both the surface and the
. bottom.
At 0900 three men were fishing, but they-left before No dead fish were seen.
noon.
Fdr the lowermost 200 yards at the mouth of Oyster Creek, and -
l alorig the boy shore for about one-half rat te south' frun, the nouth, no dead fish were seen.
Rim Ice was present along the shorelines.
In the short lagoon at the curve in Dock Ave. (where the news-paper photographs were taken last year) the surface was mostly ice covered.
No dead fish were seen.
I 1
Four lagoons extend southerly from Oyster Creek and terminate
)
at Bay Ave.
These lagoons are'bulkheaded and about 100 feet wide.
1 At tie butt end they were fully Ice covered with the ice about three' inches thick. We did see dead fish under (or in) the ice of'these lagoons and made counts in the last 50 feet of each lagoon.
Estimated numbers, based on our field counts, for each of these four lagoons from west to east follow.
Venice lagoon. An estimated 50 dead menhaden from four to eight inches' long were seen in the terminal 5,000 square feet of the lagoon, chovy were found dead and frozen into the ice.in addition, a cluster oj Sanabelle lagoon.
An estimated 400 dead menhaden were seen in l
the termir al 5,000 square f eet of this lagoon.
i inches.
The size range was two to ten J
6
F
.)
~ CHARLES B..WU.s2, Ph.D., Consulting Diologist s
y Bucconcer lagoon.
In the terminal 5,000 square feet of this lageon.An estimated 50 d were'all small, rangingin size from two to four inches.These fish Privateer lagoon.
in the terminal 5,000 square feet of this lagoon.An estimated 400 i
These fish 3
ranged in size from two to ten inches, 1
Although some gulls were seen on these laggons standing on 4
the lec, the population was apparently the normal resident popu-lation.
The many hundreds observed last year at the time of the
. fish kill were not seen this year.
January 1972.The fish kill appeared quite small compared to that of of those areas where dead menhaden were found.Only 900 me On January 8th, at lected a sample of nine dead menhaden from Privateer la
}
size'and weight of these fish follows.
The i
10.25 inches 7 oz.
9 75 4
8.5 3
7.75 3 "
s 7.75*
3 "
7.254 3 "
2.75 2.0
- Pecked by gulls.
These fish showed no scale loss, no cutaneous hemorrhages, no excer.sive accumulations of mucus, and no distension of the mouth, opercula or gills.
of a cold kill rather than mechanical damage orDeath can be assume
'some toxicant.
the effect of A further field observation was made at the Beach Clvd. bridge over South Branch Forked River.
' dead fish were seen.
Some shore ice was present.
No We also sampled in the mouth of the discharge pipe that carries water from the trash fiume of the travelling screens.
work crew was per forming maintenance on the screenc and some dis-A charge was coming through.
Atlantic silversides, two dcod Atlantic horring 2.5 and 3 25A 1 inches long, and ten dead menhaden.
Sizes of the latter were:
2 75, 2.75, 2.75, 3,3, 3, 3,3.25, 3.25, and 3.5 inches Of 4
e
+
.1-CHARLES D. WURT, Ph.D., consulting Biologist particular Interest is the fact that these menhaden were from'the.
Intake canal.
We presume death'was due to mechanical damage by Impingement en th travelling screens, in the intake canal any resident menhaden would be expected to have been acclimated to the natural amblent ~temperaturc.
Dr.. John.Reintjes telephoned me'this morning from Beaufort.
He had been asked to preparc comments on the fish kill by a director of the NMFS in Newark.
I summarized the above informa-tion for him over the telephone.
.I would., of course, appreciate being kept advised of de-velopments in this matter.
4 i.
Sincerely yours, i-
)
$tt
' ^
i Charles B. Wurtz cc7 R. R. Younger Resource Management, Inc.
4-
\\
4 l
a e
l 1
n 1
1
)
J 4
O i
1 a
,