ML17296A389

Ack Receipt of Transmitting Design Groundwater Levels for Facility.Finds Levels Acceptable.Const of Water Storage Reservoir & Evaporation Ponds Can Proceed

ML17296A389
Person / Time
Site:	Palo Verde
Issue date:	06/11/1979
From:	Boyd R Office of Nuclear Reactor Regulation
To:	Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
References
NUDOCS 7907110724
Download: ML17296A389 (18)

Text

Distributio Docket Fil NRC PDR Local PDR LWR 83 File D. Vassallo F. Williams

0. Parr E. Licitra tl. Rushbrook

'OELD IE (3)

L. Hulman

. Jackson, DSE D.

Ross R.

Boyd BCC:

JBuchanan TAbernathy ACRS (16)

Docket Nos.

STN 50-5

/529/530 JUN 11 1979 Hr. E.

E.

Van Brunt, Jr.

Vice President

-- Construction Projects Arizona Public Service Company P. 0.

Box 21666 Phoenix, Arizona 85036

SUBJECT:

DESIGN GROUNDWATER LEVELS - PALO VERDE NUCLEAR GENERATING STATION, UNITS 1, 2 AND 3 In each of the construction permits (CPPR-141, CPPR-142 and CPPR-143),

dated tray 25, 1976, for the Palo Verde Nuclear Generating Station, Units 1, 2 and 3, we had included a condition which stated that neither construction of the water storage reservoir nor construction of the evaporation ponds shall be started.,

until a specific analysis, which is defined in Condition.3.F.(1) of the construction permits, had been submitted and approved by the Commission's staff.

.The condition permitted either of two alternate approaches to the analysis which are also defined in the condition.

By letter, dated April 18, 1979, you state that the design groun'dwater levels'or Units 1, 2 and 3 have been established at 927, 924 and 921 feet above mean sea level, respectively, which are 30 feet below the plant grade for each unit.

You also state that the supporting analyses to satisfy alternate (b) of Condition 3.F'(1) of the construction permits were provided in Amendment No. 19, dated December 18, 1978, to the PSAR for Palo Verde, Units 1,

2 and 3.

In your letter, you request that we notify you of the acceptability of the information submitted in satisfying this construction permit condition.

We have reviewed the design groundwater levels for Units 1, 2 and 3 as stated in your April 18, 1979 letter and the. supporting analyses submitted in Amendment No.

19 to the PSAR and conclude that these groundwater levels of

927, 924 and 921 feet above mean sea level are acceptable.

This conclusion is based on the following considerations:

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The results of the seepage analysis demonstrate that the actual groundwater levels wi'll'- remain below the design groundwater levels.

(2)

The results of the liquefaction analysis demonstrate that soil liquefaction effects will not pose a hazard to the facility in the event that a safe shutdown earthquake should'occur at the site in conjunction with the design groundwater levels.

(3)

All other effects of the design groundwater levels, such as the effects of hydrostatic groundwater pressure on structures, will be properly accounted for in the design of the facility.

Therefore, we conclude that Condition 3.F.(l) of the construction permits for Palo Ye&de, Units 1, 2 and 3 has been met and that construction of the water storage reservoir and the evaporation ponds for these units can'roceed.

Please advise us if you have any questions regarding this letter.

Sincerely, Original signed by D.B. Vassals ~

Roger S.

Boyd, Director Division of Pr'oject Management Office of Nuclear Reactor Regulation cc:

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Arthur C. Gehr, Esq.

Snell 8 Wilmer 3100 Valley Center Phoenix, Arizona 85073 Charles S.

Pierson Assistant Attorney General 200 State Capitol 1700 West Washington

Phoenix, Arizona 85007 David N; Barry, Esq., Senior Counsel Charles R. Kocher, Esq., -Assistant Counsel Southern California Edison Company P. O.,Box 800

Rosemead, California

.91770 Dr. Stanely L. Dolins Assistant Director Energy. Programs (OEPAD)

Office of the Governor 1700 West Washington Executive Tower, - Rn.

507 Phoenix, Arizona 85007

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Distribut'ocket File tlRC PDR Local PDR L!iR f3 File D. Vassallo F. !lilliams

0. Parr E. Licitra H. Rushbrook GELD IE (3)

Hulman

. Jackson, DSE Ross R.

Boyd BCC:

JBuchanan TAbernathy ACRS (16)

Docket los.

STtl 50-528/ 29/530 JUN 11 1979 Mr. E.

E.

Van Brunt, Jr.

Vice President - Construction Projects Arizona Public Service Company P. 0.

Box 21666 Phoenix, Arizona 85036

SUBJECT:

DESIGN GROUNDMATER LEVELS - P<LO VERDE tlUCLEAR GEtlERATIllG STATIOtl, UtlITS 1, 2 Al<D 3 In each of'he construction permits (CPPR-141, CPPR-142 and CPPR-143),

dated

!lay 25, 1976, for the Palo Verde 'luclear Generating Station, Units 1, 2 and 3, we had included a condition which stated that neither construction of the water s.orage reservoir nor construction of the evaporation ponds shall be started until a specific analysis, which is defined in Condition.3.F.(l) of the construction permits, had been submitted and approved by the Coamission's staff.

The condition permitted either of two alternate approaches to the analysis which are also defined in the condition.

By letter, dated April 18, 1979, you state that the design groundwater levels for Units 1, 2 and 3 have been established at 927, 924 and 921 feet above mean sea level, respectively, which are 30 feet below the plant grade

,or each unit.

You also state that the supporting analyses to satisfy alternate (b) of Condition 3.F.(1) of the construction permits were provided in Amendment tlo. 19, dated December 18, 1978, to the PSAR for Palo Verde, Units 1,

2 and 3.

In your letter, you request that we notify you of the acceptability of the information submitted in satisfying this construction permit condition.

~le have reviewed the design groundwater levels for Units 1, 2 and 3 as stated in your April 18, 1979 letter and the, supporting analyses submitted in Amendment Ho.

19 to the PSAR and conclude that these groundwater 1'vels of

927, 924 and 921 feet above.mean sea level are acceptable.

This conclusion is based on the following considerations:

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The results of the seepage analysis demonstrate that the actual groundwater levels will remain below the design groundwater levels.

(2)

The results of the liquefaction analysis demonstrate that soil

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liquefaction effects will not pose a hazard to the facility in the event that a safe shutdown earthquake should occur at the site in conjunction with the design groundwater levels.

(3)

A11 other effects of the design groundwater levels, such as the effects of hydrostatic groundwater oressure on structures, will be properly accounted for in the design of the facility.

Ther efore, we conclude that Condition 3:F.(1) of the construction permits for Palo Verde, Units 1, 2 and 3 has been met and that construction of the water storage reservoir and.the evaporation ponds for these units can proceed.

Please advise us if you have any questions regarding this letter.

Sincerely, 0;iginal sigoedby-D. B. Vassalla ~

- w~'oger S.

Boyd, Oirector Oivision of Project management Office of,'luclear Reactor Regulation cc:

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Arthur C. Gehr, Esq.

Snel1 6 Wilmer 3100 Va1 1 ey Center Phoenix, Arizona 85073 Charles S. Pierson Assistant Attorney General 200 State Capitol 1700 West Washington

Phoenix, Arizona 85007 David H. Barry, Esq., Senior Counsel Charles R. Kocher, Esq.,

Assistant Counsel Southern California Edison Company P. 0.

Box 800

Rosemead, California 91770 Or. Stanely L. Oolins Assistant Director Energy Programs (OEPAO

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Office of the Governor 1700 West Washington Executive Tower -

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507 Phoenix, Arizona 85007

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Oi stribution:

Docket Fi 1 NRC POR Local PDR LHR

-,".'3 File O. Vassallo F. !(illiams

0. Parr E. Licitra H. Rushbrook OELD IE (3)

L. Hulman R. Jac DSE O.

Ros

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BCC:

JBuchanan TAbernathy ACRS (16)

Docket

)os.

ST"( 50-523/529/53 JUN 11 1979 t1r.. E.

E.

Van Brunt, Jr.

Vice President - Construction Projects Arizona Public Service Company P. 0.

Box 21666 Phoenix, Arizona S5036

SUBJECT:

DESIGN GROUNOMATER LEVELS -

PALO VERDE t/UCLEAR GE /ERATIllG STATIOll, UNITS 1, 2 AI(D 3 In each of the construction permits (CPPR-141, CPPR-142 and CPPR-143),

da.ed

!/ay 25, 1976, for the Palo Verde 'nuclear Generating Station, Units 1, 2 and 3, we had included a condition which stated that neither construction of the water storage reservoir nor construction of the evaporation ponds shall be started until a specific analysis, which is defined in Condition. 3.F.(1) of the construction permits, had been submitted and approved by the Coamission's staff.

The condition permitted either of two alternate approaches to the analysis which are also defined in the condition.

By letter, dated April 1S1 1979, you state that the design groundwater levels for Units 1, 2 and 3 have been established at 927, 924 and 921 feet above mean sea level, respectively, which are 30 feet below the plant grade,or each unit.

You also state that the suoporting analyses to satisfy aIternate (b) of Condition 3.F.(l) of the construction permits were provided in Amendment i'to. 19, dated December 18, 1973, to the PSAR for. Palo Verde, Units 1,

2 and 3.

In your letter, you request that we notify you of the acceptability of the information submitted in satisfying this construction oermit condition.

'1!e have reviewed the design groundwater levels for Units 1, 2 and 3 as stated in your April 18, 1979 letter and the. supporting analyses submitted in Amendment f/o.

19 to the PSAR and conclude that these groundwater levels of

927, 924 and 921 feet above mean sea level are acceptable.

This conclusion is based on the following considerations:

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The results of the seepage analysis demonstrate that the actual groundwater levels will remain below the design groundwater levels.

(2)

The results of the liquefaction analysis demonstrate that soil liquefaction effects will not pose a hazard to the facility in the event that a safe shutdown earthquake should occur at the site in conjunction with the design groundwater levels.

(3)

A11 other effects of the design groundwater levels, such as tHe effects of hydrostatic groundwater oressure on structures, will be properly accounted for in the design of the facility.

Therefore, we conclude that Condition 3.'F.(l) of the construction permits for Palo Verde, Units 1, 2 and 3 has been met and that construction of the water storage reservoir and the evaporation ponds for these units can proceed.

Please advise us if you have any questions reoarding this letter.

Sincerely, 0 irirral sigMd by D. B. Vassalla ~

-wz.'oger S.

Boyd, Director Division of Project Management Office of '(uclear Reactor Regulation cc:

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Arthur C. Gehr, Esq.

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6 Milmer 3100 Valley Center Phoenix, Arizona 85073 Charles S. Pierson Assistant Attorney General 200 State Capitol 1700 West Washington

Phoenix, Arizona 85007 David N. Barry, Esq., Senior Counsel Charles R. Kocher, Esq.,

Assistant Counsel Southern California Edison Company P. 0.

Box 800

Rosemead, California 91770 Dr. Stanely L. Dolins Assistant Director Energy Programs (OEPAD)

Office of the Governor 1700 West Washington Executive Tower - Rn.

507 Phoenix, Arizona 85007

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