ML20093P145
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RECORD OF TELEPHONE CONVERSATION j'
DATE: March 12,1982 9:45 a.m.
PROJECT: Midland 4
RECORDED BY: Joseph Kane CLIENT:
TALKED WITH: James Meisenheimer 0F Consumers Power Co.
2' ROUTE TO:
INFORMATION ACTION G. Lear L. Heller D. Hood M. Hartzman h
H. Singh P. Hadala J. Kane MAIN SUBJECT OF CALL: CPC future submittal of information on results of i
liquefaction studies l
ITEMS DISCUSSED:
l-4 J. Meisenheimer indicated that CPC has mailed the results of Dr. Afifi's evaluation of liquefaction to Dr. Hadala and that he will have this same information for me to review during next week's design audit. This information was identified as being required for Staff review at the i
March 3,1982 meeting in Bethesda on permanent dewatering. The results of Bechtel's study on liquefaction do show loose sands in the plant fill j
above elev. 610 at locations other than the Diesel Generator Building i
and Railroad Bay.
l J. Meisenheimer indicated the loose sands located in the plant fill north 1
of the Service Water Structure and Circulating Water Intake Structure within l
the foundation area of the 26"-diameter service water lines will be removed i
and replaced with either lean concrete or stabilized soils. This is the first notification to NRC of this intended replacement work and involves approximately a 500 foot length of Cat. I pipe (26"9) and will extend i$epth to El 610. The replacement option has been selected by CPC in this area rather than relying on the pennanent dewatering system to maintain the water level at elevation 595.
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Jenses W Cook Vice Presadent - Projects, Engum med Conserversom Y
oeneral Offloas: 194s West Parnest 14easl. Jankeen, att 42201 + (517) 7864483 a1
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March 10, 1982 oil Harold R Denton, Director M
Office of Nucle:ar Reacts.r Regulation d
US Nuclear Regzlatory Commis:~.on Washington, 3C
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20555 MIDLAND PROJECT MIDLAND DOCKET NO 50-329, 50-330 3
SETTLEMENT OF UNDERGROUND DIESEL FUEL TANKS DUE TO SEISMIC SHAKEDOWN
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FILE: 0485.16 SERIAL: 16243 i
REFERENCES:
(1) M SILVER AND H B SEED, " BEHAVIOR OF SANDS UNDER i
SEISMIC LOADING CONDITIONS," FROM REPORT NUMBER 69-16 s
(DECEMBER 1969), COLLEGE OF ENGINEERING OF THE I
UNIVERSITY OF CALIFORNIA AT BERKLEY j
(2) R PIKE, H B SEED AND C K CHAN, "SETILEMENT OF SANDS i
UNDER HULTIDIRECTIONAL SHAKING," JOURNAL OF GEOTECHNICAL ENGINEERING DIVISION, PROCEEDINGS OF THE AMERICAN SOCIETY OF CIVIL ENGINEERS, VOLUME 101, GT 4, PP 379-401, APRIL 1975 During the May 5, 6 and 7, 1981 meeting with the NRC Staff, a concern raised by the Corps of Engineers was discussed with the Staff relating to the
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potential for the seismic shakedown of the uaderground diesel fuel oil tanks
'j and connected piping. This concern pertains to the four or five feet of sand i
layer in the vicinity of the tanks and the effect of seismic shakedown on connected piping.
1 In accordance with the agreement reached in this meeting, an estimate of
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settlement was made for the loose sand layer indicated in Boring DF-5.
For Boring DF-5, refer to Figure 33-1 from Question 33,10 CFR 50.54(f), Responses to NRC Requests Regarding Plant Fill. The estimate we have made below is L"
based on the procedures suggested by M Silver and E B Seed in their publication identified in Reference 1 and the further modified procedure of R Pike, H B Seed and C K Chan in the publication of Reference 2.
The procedures involve using the relative density of sand as determined from
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standard penetration tests (SFr) and the relationships between shearing strain T
and vertical strain published by Silver and Seed in Reference 1.
In this calculation, a ground surface acceleration of 0.12g was used. The vertical d
displacement calculated from this procedure is then multiplied by three to account for multidirectional earthquake ground shaking as proposed by R Pike, H B Seed and C K Chan in-Reference 2.
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-l Based on this method of evaluation, the estimated shakedown settlement of the layer of loose sand, as indicated in the Boring DF-5, is on the order of O.04 inch. This small a settlement is insignificant and we have concluded j
that the small settlement is well within the design capability of the system.
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dj CC Atomic Safety and Licensing Appeal Board i
CBechhoefer, ASLB MMCherry, Esq
.l FPCowan, ASLB
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RJCook, Midland Resident Inspector RSDecker, ASLB
-l SGadler JHarbour, ASLB GHarstead, Harstead Engineering DSHood, NRC, (2)
DFJudd, B&W JDKana, NRC FJKelley, Esq RBLandsman, NRC Region III WHMarshall, Esq JPMatra, Naval Surface Weapons Center W0tto, Ariuy Corps of Engineers WDPaton, Esq s
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SJPoulos, Geotechnical Engineers
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' l ing, ray orps of Engineers BStamiris i
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RECORD OF TELEPHONE CONVERSATION wt
- .[
DATE: March 12,1982 9:45 a.m.
PROJECT: Midland RECORDED BY: Joseph Kane CLIENT:
\\\\
i TALKED WITH: James Meisenheimer OF Consumers Power Co.
a ROUTE T0:
INFORMATION ACTION
^2 G. Lear j
L. Heller D. Hood q::
M. Hartzman 9
H. Singh
- .1 P. Hadala
,j J. Kane MAIN SUBJECT OF CALL: CPC future submittal of information on results of j
liquefaction studies i
1 i
ITEMS DISCUSSED:
J. Meisenheimer indicated that CPC has mailed the results of Dr. Afifi's
.j evaluation of liquefaction to Dr. Hadala and that he will have this same
- J information for me to review during next week's design audit. This information was identified as being required for Staff review at the D
.j March 3,1982 meeting in Bethesda on permanent dewatering. The results of
'1 Bechtel's study on liquefaction do show loose sands in the plant fill j
above elev. 610 at locations other than the Diesel Generator Building
.{
and' Railroad Bay.
J. Meisenheimer indicated the loose sands located in the plant fill north of the Service Water Structure and Circulating Water Intake Structure within
{q the foundation area of the 26"-diameter service water lines will be removed t
1 and replaced with either lean concrete or stabilized soils. This is the L
first notification to NRC of this intended replacement work and involves approximately a 500 foot length of Cat. I pipe (26"p) and will extend irpepth to El 610. The replacement option has been selected by CPC in this area j
rather than relying on the permanent dewatering system to maintain the water level at elevation 595.
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RECORD OF TELEPHONE CONVERSATION DATE: March 12, 1982 9:45 a.m.
PROJECT: Midland RECORDED BY: Joseph Kane CLIENT:
hi TALKED WITH: James Meisenheimer 0F Consumers Power Co.
}
ROUTE TO:
INFORMATION ACTION G. Lear 1
L. Heller u
D. Hood c
M. Hartzman
}-
H. Singh 7
P. Hadala J. Kane MAIN SUBJECT OF CALL: CPC future submittal of information on results of j
liquefaction studies j
ITEMS DISCUSSED.:
l J. Meirenheimer indicated that CPC has mailed the results of Dr. Afifi's j
evaluation of liquefaction to Dr. Hadala and that he will have this same j
infomation for me to review during next week's design audit. This g
information was identified as being required for Staff review at the s.
March 3, 1982 meeting in Bethesda on permanent dewatering. The results of Bechtel's study on liquefaction do show loose sands in the plant fill i
above elev. 610 at locations other than the Diesel Generator Building i
and Railroad Bay.
J. Meisenheimer indicated the loose sands located in the plant fill north of the Service Water Structure and Circulating Water Intake Structure within i
the foundation area of the 26"~ diameter service water lines will be removed
~
and replaced with either lean concrete or stabilized soils. This is the first notification to NRC of this intended replacement work and involves b.:
approximately a 500 foot length of Cat. I pipe (26"9) and will extend i$epth to El 610. The replacement option has been selected by CPC in this area rather than relying on the pemanent dewatering system to maintain the water level at elevation 595.
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