ML20154P417

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Summary of 880408 Meeting W/Util & Arrowhead Industrial Water,Inc in Rockville,Md Re Very Low Level Radioactive Concentrations Observed in Reverse Osmosis Sys Used to Generate Makeup Water at Plant.Attendance List Encl
ML20154P417
Person / Time
Site: North Anna  Dominion icon.png
Issue date: 05/13/1988
From: Engle L
Office of Nuclear Reactor Regulation
To:
Office of Nuclear Reactor Regulation
References
NUDOCS 8806030331
Download: ML20154P417 (7)
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,' # o g UNITED STATES E[ o NUCLEAR REGULATORY COMMISSION

$,_  ;$ WASHINGTON, D. C. 20555 May 13, 1988

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Docket Hos. 50-338 and 50-339 LICENSEE: Virginia L .ectric and Power Company (VEPC0)

FACILITY: North Anna Power Station, Units No. 1 & No. 2 (hA-1&2)

SUBJECT:

SLEMARY OF MEETING WITH VEPC0 HELD ON APRIL 8,1988 REGARDING VERY LOW-LEVEL RADI0 ACTIVE CONCENTRATIONS OBSERVED IN THE REVERSE OSMOSIS SYSTEM USED TO GENERATE MAKEUP WATER AT NA-182 A meeting was held in Rockville, Maryland on April 8,1988 with representatives of VEPCO, Arrowhead Industrial Water, Incorporated (AIWI) and the NRC to discuss the subject as noted above. An attendance list is proviaed in Enclosure 1.

INTRODUCTION:

VEPC0 currently makes use of a reverse osmosis (RO) system to generate makeup water at NA-1&2. The R0 system is owned and operated by AlW1. Due to the total organic carbon and colloidal silica in Lake Anna water, purification and makeup is necessary to provide high quality water for use at NA-1&2.

DISCUSSION:

The R0 system (see Enclosure 2) makes use of a polymer which is added to water taken from Lake Anna and processed through a sand filter, cation bed, anion bed, activated carbon bed, and a mixed bed prior to reaching the R0 membrane.

Approximately 1.4 million gallons of Lake Anna water can be processed every three days before resins must be removed offsite in mobile trailers and regenerated by AIWI. A recent radioactive isotopic analysis by VEPC0 of samples obtained from thg4 catigg andi gxed bedsi gdicated very low-level radioactive conyentrations fog Hn , Co , Sb , and Cs ranging from approximately 1.00 x 10 to 8.0 x 10-microcuries per milliliter. The values, as analyzed, are provided in Enclosure 2.

The location of the RO system falls within the definition of an UNRESTRICTED AREA as specified in the NA-182 Technical Specifications 3.4.11. The RO system is within the site boundary, but in an unrestricted area used for industrial purposes. In addition, the R0 systems processes water, which is being taken f rom an unrestricted area, Lake Anna, which is not licensed material.

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CONCLUSION:

The staff notes that the R0 system is located in an unrestricted area of NA-1&2 and is owned and operated by AIWI. Also, the AIWI R0 system processes water  !

located in an unrestricted area. In addition, the probable source of the very J low-level radioactive material is NA-1&2 effluents released to unrestricted areas in accordance with 10 CFR 20.106 and NRC regulations do not require water processors, such as AIWI, to obtain a license for their waste products. Accordingly, the resins used in the AIWI R0 system do not require a NRC license. j l

Original signed by Leon B. Engle, Project Manager Projoct Directorate II-2 Division of Reactor Projects-I/II

Enclosures:

As stated cc w/ enclosures:

See next page DISTRIBUTION s Docket File .

NRC & Local PDRs PDII-2 Reading HBerkow LEngle DMiller OGC-WF Edordan JPartlow HRC Participants ACRS(10)

Gray File f

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LA:PDil-2 PM: -2 0:PDIi-2 DMiller LEngle:bd HBerkow  ;

05/13/88 05/11/88 05/ 88 A

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Mr. D. S. Cruden ,

North Anna Power Station Virginia Electric & Power Company Units 1 and 2 cc:

Mr. William C. Porter, Jr. James B. Kenley, M.D., Commissioner County Administrator Department of health Louisa County 109 Governor Street P.O. Box 160 Richmond, Virginia 23219 Louisa, Virginia 23093 Regional Administrator, Region 11 Michael W. Maupin, Esq. U.S. Nuclear Regulatory Commission Hunton and Williams 101 Marietta Street N.W., Suite 2900 P. C. Box 1535 Atlanta, Georgia 30323 Richmona, Virginia 23212 Mr. W. T. Lough Virginia Corporation Commission Mr. G. E. Kane Division of Energy Regulation P. O. Box 402 P. O. Box 1197 Mineral, Virginia 23117 Richmond, Virgin 1J 23209 '

Old Dominion Electric Cooperative Ellyn R. Weiss, Esq. c/o Executive Vice President Harmon, Weiss and Jordan Innsbrook Corporate Center 2001 S Street NW 4222 Cox Road, Suite 102 Washington, DL E0009 Glen Allen, Virginia 23060 Mr. W. L. Stewart Senior Vice President - Power Virginia Electric and Power Co.

Post Office Box 26666 Richmond, Virginia 23261 Mr. Patrick A. O' Hare Office of the Attorney General Supreme Court Building 101 North 8th Street Richmond, Virginia 23219 Resident inspector / North Anna ,

c/o U.S. NRC I Senior Resident Inspector Route 2, Box 78 i Mineral, Virginia 23117 I

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ACTIVITY FOR MOBILE DEMINERALIZER UNIT TOTAL 10CFR30 ACTIVITY ACTIVITY SCHEDULES UNIT VOLUME uCi/ml uCi A(uCi/ml) B(uCi)

Cation 110 cu ft Cs-137 1.28E-7 0.398

  • 10 Mn-54 3.6E-8 0.112 1E-3 10 Anion 140 cu ft Cs-137 1.47E-7 0.583
  • 10 Sb-125 7.19E-7 2.85 1E-3 10 Mixed Bed 60 cu ft <LLD ACTIVITY FOR MOBILE STATIONARY UNIT TOTAL 10CFR30 l ACTIVITY ACTIVITY SCHEDULES UNIT VOLUME uCi/ml uCi A(uCi/ml) B(uCi) l Sand Filters 180 cu ft Co-60 7.2E-8 0.367 1.07E-7 1 Cs-137 1.29E-7 0.658
  • 10 Charcoal Deox 70 cu ft <LLD Units l l

Mixed Bad Polishing 180 cu ft <LLD Domin.

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  • No exempt concentration listed in Schedule A.

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