ML18003A710
| ML18003A710 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 10/17/1979 |
| From: | Parr O Office of Nuclear Reactor Regulation |
| To: | Jackie Jones CAROLINA POWER & LIGHT CO. |
| References | |
| NUDOCS 7910260147 | |
| Download: ML18003A710 (9) | |
Text
--
tr.'~',"
Ii ji't'00T l7 1979 Docket Nos.:
50-400/401/402/40$
Nr. J. A. =Jones Executive Vice President - Engineering Construction and Operations Carolina Power and Light Company 336 Fayetteville Street Raleigh, North Carolina 27602 r
Dear ter. Jones:
DISTRIBUTION:
NRC PDR Local PDR Docket File LWR 83 File
'Vassallo DRoss SVarga FWilliams OParr SNiner NRushbrook
)w/e RMattson SHanauer JKnight RTedesco RDeYoung VMoore 11Ernst RDenise ELD IE (3)
RJackson bcc:
JBuchanan, NSIC TAbernathy, TIC ACRS (16) xtra copies)
SUBJECT:
RESULTS OF TEST PROGRAM TO'CONFIRM PROPERTIES OF MATERIALS IN ROCK ENBANQ1ENTS AND GEOLOGIC MAPS TO CONFIRM SHEAR STRENGTH FOR WEATHERED ROCK In Supplement'o.
1 to the Shearon Harris Safety Evaluation Report (SER),
Section 2.7,. we concluded that your design criteria for seismic Category I earthen dams and dikes are acceptable, subject to confirmation of assumed strength properties of weathered rock prior to the start of construction.
In Supplement No.
2 to the SER Section 2.7, we concluded that certain modi-fications to the design of the seismic Category I earthen dams and dikes were satisfactory and that your revised criteria were acceptable subject to confirmation of the rock-fill embankment materials prior to the star t of construction.
In Supplement No.
3 to the SER Section 2.7, we stated that these confirmations were still required.
We have reviewed the information, submitted by you, subsequent to the issuance of Supplement No.
3 to the SER, regarding the random rockfill for the auxiliary dam and dike.
Submittal No. 1,(Enclosure
- 1) reports the
- results of tests made on random rockfill materials using for laboratory
- tests, gradations which were anticipated for placed fill. In Submittals No.
2 and No.
3 (Enclosure 1), the test fill results show that the grada-tions used in the laboratory tests were representative of the in place gradations.
In Submittal No. 4 (Enclosure 1), the construction specifica-tions have been revised to reflect the field conditions needed to validate the design assumption.
Based on our review of the above information we conclude that you have m t the requirements of Supplement No.
3 to the SER with respect to thy rando'~./
Pro] q7
~ W 4
r r
'i I
Y Hr. J.
A. Jones
~
Y1 I I,t i ls'JS rockfill shells of the auxiliary dam and dike.
We also find that the revised construction specifications of Submittal No. 4 are consistent with the 'test results and are thus acceptable<,
With regard to the rockfill for the main dam,. we and our consultant, the U. S.
Army Corps of Engineers, have reviewed the information submitted by you (Submittal No. 5, Enclosure 1).
We fin'd that you havd'et the require-ments of Supplement No.'
to the SER.
The following conditions are required to be met during construction to assure fulfillment of design objectives.'
Your acceptable commitment to the following conditions was provided in your letter dated August 28. 1979.
1.
The seco'nd largest particle dimension (or intermediate particle, dimension) of the rock fill must be less than 22 inches.
This controlling particle dimension corresponds to the screeg> size in the jradation test.
The rock fill in the lowest three (3) lifts on.the downstream side between dam station 4 + 22 and 7 + 82 must contain less than 5 percent fines (minus 0200 sieve size).
3.
The plasiticity index of the fine material in the rock fill must be tested and reported so as to verify your statement that the fines are essentially non-plastic.
6.
The coefficients of permeability of the rock fill must not be less than 10"~ cm/sec.
The shear strength of the placed rock fill must be confirmed by at least 2 additional, large size triaxial tests to be performed on rock samples taken from the dam shell.
Field permeability tests. must be performed at the locations of the required density and gradation tests.
In addition, at least three (3) field permeability tests must be performed in the zone described in item (2);aabove.
Me have also reviewed the information submitted by you, Submittal No. ',6 of Enclosure 1, regarding the revisions to the construction specifications to cover in-situ residual soil foundations.
Your revised specifications require:
I'a)
'a minimum dry density of 98 lb/cu ft. f'r in-situ residual soil
= foundations
I U
Hr. J.
A. Jones lp 3
OCT 17 1979 (b)'roof rolling of in-situ residual soil foundations and removal of unsuitable material (c) mapping and c'lassification of soils to verify that'the actual
'oundation conditions are represented by the boring and laboratory
,data used in -design.
He find that the provisiohs of your revised specifications meet our requirements as stated in the SER.,
Me will require that the results of the inspections and testing of the in-situ residual soil foundations under dams be. presented in the FSAR.
He have completed opr review of the information submitted by you (Enclosure 1) regarding the results of the test program to confirm the properties of the materials in,the rockfill embankments and regarding your plans for geologic mapping of the exposed foundation materials to confirm the assumed shear strengths for the-weathered rock.
He conclude that the information submitted (Enclosure
- 1) fulfills the requirements of Supple-ment No.
3 to the SER (Section 2.7).
Sincerely,
Enclosure:
As Stated Olan D. Parr, Chief Light Hater Reactors, Branch No..3 Division of Prospect management
, OFFICC~
OUANAMC+
10/ y~79
~4. W%RLf %10 lO 'V4% ~~ A18A
...RE. <<..a...........ANP.ar........
10/'79 10M'79 OILS OOVSSNMRNt ~IIINTINOOftICEf ~ ~ 7 ~
NO 70 ~
~\\I ~ 0
\\
~ ~
.4
/
V l
pi a,
~ )
I
) ~ )
%g ~
t1r. J.
A. Jones Executive Vice President - Engineering Construction and Operations
'Carolina Power
& Light Company 336 Fe'otteville Street RalQ)$ 4~ NOrth Carolina 27602 CC:
George F. Trowbridge, Es q.
Shaw, Pittman, Potts, Trovhridge 8 idden 1800 N Street, N.
W.
Washington, D.
C.
,20036 Richard E. Jones, Esq.
Associate General Counsel Carolina Power 8 Light Company 336. Fayettevil le Street Raleigh, North Carolina
- 27602, Thomas S. Erwin, Esq 115 W, Morgan Street Raleigh, North Carolina 27602 Jesse C. Brake, Esq.
Associate Attorney General State of North'arolina P. 0.
Box 629 Raleigh, North Carolina 27602 Alan S. Rosenthal, Esq.,
Chairman Atomic Safety and Licensing Appeal Hoard U. S.
Nuclear Regulatory Comnission Washington, 0.
C.
20555 Michael C. Farrar, Esq.
Atomic Safety and Licensing Appeal Board U. S.
Nuclear Regulatory Comnission Washington, D.
C.
20555 Dr. John M. Buck Atomic Safety and Licensing Appeal Board U. S.
Nuclear Regulatory Comnission Washington, D.
C.
20555 Yir. Glenn 0. Bright Atomic Safety and Licensing Board Panel U. S.
Nuclear Regulatory Comnission Washington, D.
C.
20555 Dr. J.
V. Leeds, Jr.
10807 Atwell Drive
- Houston, Texas 77096 Wake County Public Library 104 Fayettevi1 le Street
- Raleigh, North Carolina 27601 Dennis P.
Nyers Attorney Genera 1 '
Offi ce State of North Carolina P.
0.
Hox 629
- Raleigh, North Carolina 2?602 Ivan W. Smith, Chairman Atomic Safety and Licensing Board Panel U. S.
Nuclear Regulatory Comoission Washington, D.
C.
20555
ENCLOSURE 1
SUBMITTAL OF RESULTS OF, TEST PROGRAMS WHICH CONFIRM THE DESIGN PQP4QI,ES, QF'OCK MATERIALS IN THE EMBANKMENTS AND FIELD MAPPING QNQ TESTING NEEDED TO CONFIRM SHEAR STRENGTH FOR FOUNDATIONS 1.
Large Scale Triaxial Shear and Permeability Tests, Shearon Harris Nuclear Power Plant, Carolina Power arid Light Company, by U. S.
Army Engineer Division Laboratory, South Atlanta, Requisition No. H-02022, Work Order No. 9051, dated April 1975.
2.
Test Report, Random Rockfill Material, Shearon Harris Nuclear Power Plant, Carolina Power and Light Company, Test.VR-24-4-1, prepared by Power Plant Construction Department.
3.
Test Report, Random Rockfill Material, Test VR-24-2, Shearon Harris Nuclear Power Plant, prepared by Power Plant, Construction Department.
4.
Carolina Power and Light Company, Field Change Request No.
FCR/C-616, dated April 12, 1979.
5.
Report on Rockfill Test Sections, Maiii Dam, Shearon Harris Nuclear Power Plant, Carolina Power and Light Company, July 1979.
6.
Letter dated April 9, 1979 from M. A. McDuffie, CP8L, to H.
R.
Denton
0 I
'll