ML19249B674
| ML19249B674 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 08/15/1979 |
| From: | Eisenhut D Office of Nuclear Reactor Regulation |
| To: | Westerman M AFFILIATION NOT ASSIGNED |
| Shared Package | |
| ML19249B675 | List: |
| References | |
| NUDOCS 7909040658 | |
| Download: ML19249B674 (3) | |
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UNITED STATES yh,(3 NUCLEAR REGULATORY COMMISSION
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%.~...ff Docket No. 50-10 AUG 15 E3 Ms. Marty Westerman Rt. #1, Box 279 St. Anne, Illinois 60964
Dear Ms. Westerman:
This is in response to your letter dated July 12, 1979, to the NRC which requested that an Environmental Impact Statement (EIS) be pre-pared prior to the chemical decontamination of Dresden Nuclear Power Station Unit No. 1.
We are currently reviewing the need for such an impact statement for the decontamination as a result of a petition by Mrs. Kay Drey dated March 10, 1979.
A copy of our esponse to Mrs. Drey and the related Fede al Register notice are enclosed for your infornation.
Please_ be assured that the Dresden decontanination will not go forth until the need for an Environmental Impact Statement is resolved.
We will provide you with copies of our decision on this natter when we have completed our review.
With respect to the specific questions posed in your letter, the following answers are provided:
Ql. Will the people participating in the Dresden decontamination experiment suffer from exposure to the combination of the solvent and the radioactive materials that will be suspanded in the solvent?
A.
The occupational exposure to the workers at Dresden 1 is being minimized by carefully planning the decontamination program and training the workers to carry out their tasks as quickly and efficiently as possible.
Commonwealth Edison has estimated the radiation exposure that is expected to be received during each discrete task involved in the cleaning precedure. The high exposure tasks have been evaluated to minimize crera:cr ex osure by shielding and preplanning. Energency :-ccetures have been developed to minin1:e personnel exposure ir. t.e event Of a malfunction.
<e have reviewed the 1icensee's submittal s regarci g c:L:ational ex:osure and have concluded that Ccrnenwealth Ed's:n nas :2 en n1" ' ~ "'m O
a::ropriate measures 'o assure *"at occupational ex::su es.c'l
- e maintained as icw as reasonably achievable curi ; :ne de:cr.-
ta" nation and waste treatment cperations at Dresde-Ur't 1.
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Ms. Marty Westeman Q2.
Will the radioactive wastes migrate faster than normal once the Dow chemical solvent reacts with the wastes?
A.
The migration of radionuclides will be prevented by solidifying the waste and disposing of it at dry western desert sites where there will be no interaction with ground water because of the extremely deep water tcble.
Q3.
Will any of this waste remain on site, possibly coming in contact with the soil and then rapidly beir.g leached into the ground water?
A.
No, the radioactive wastes that are flushed from the system will be evaporated to reduce its volume in the radioactive waste facility.
After evaporation the concentrated liquid waste will be solidified using Dow Chemical's Solidification Process for Low Level Radioactive Wastes.
After solidification the waste will be transported by a commercial radioactive waste disposal carrier in approximately 1200 55 gallon drums.
The waste will be packaged and shielded to meet all applicable transportation requirements. The solidified radioactive waste will be transported to a commercial low level waste burial site, such as Beaty, Nevada or Hanford, Washington.
Q4.
Will the operation of Dresden 1 become more hazardous in the future due to the process? According to one study, stainless steel, which is used in the reactor vessel, is somewhat porous. After cleaning, steel is found to deteriorate. What impact will this have on the operation and safety of the plant?
A.
Before returning Dresden I to service following decontamination of the prinary cooling system, a comprehensive pre-service inspection will be performed to assure the integrity of the primary coolant system and assess the effect of the chemical cleaning en safety-related components that have been in contact with the cleaning solvent.
Facility Operating License No. DPR-2, issued to Dresden Unit 1, requires that Commonwealth Edison operate the facility in accordance with detailed cperating standards called Technical Specifications.
The specifications establish 1imits on operating parameters related to safety and establish the minimum complenent of safety-related equipment needed to assure that these limits are not violated.
comonwealth Edison must comoly with all the requirerents of the
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facility Technical Specifications before returning the facility to service, inclucing all the normal inspections and tests required
- e"re returning the reactcr to service follchg eacn efueling cutage.
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Ms. Marty Westerman I hope that this information is responsive to your request.
If we can be of further assistance, please let us know.
Sincerely,
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,,. tarrell G. Eisenhut, Acting Director
- 'I}'1/ Division of Operating Reactors Encl osures:
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et No. 50-10
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APR S GH
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Ms. Kay Drey 515 Fest Point Avenue University City, Missouri 63130 l
Decr 'Is. Drey:
This letter is sent to acknowledge r~eceipt of your petition dited ~ ""
!' arch 19.1979. askin'.: that cn Environmental Inpact Statenent be prepared on the prosesed decontanination experiner.ts at Dresden
uclear ?cuer Statico. Unit 1. designed to flush radicactive cor esica products frcn portions of the facility's pi,9ing.
Your request is being treated under the procedures specified in 10 CFR 2.2P6 cf the Comission's reculations and accordingly. vie will inic-ynu of our decision on your recuest within a raasnnable tine.
Enclosed #cr your infor~ation is a ccpy of the notice recarding your recu-st that will be filed for publication with the Offica of the rederal Register.
S i n'cerely.
Original Signed By q
Rcger S. Ecyd
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1:arold R. Dentan Directer Cffice of N'uclear Peactor Reculation Enclosure h* Ct W'.!
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".r. Cordell Peed Assistant Vice Presi' tent Ccmem:calth Edison Conpany P. O. Cox 757 Chica o Illinois CC90 v.... -i :.
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UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION COPF.ONWEALTH EDISON COMPANY
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I (Drvden Nuclear Power Station, )
Docket No. 50-10 i
Unit 1) t REQUEST FOR PREPARATION 0F ENVIRONMENTAL IMPACT STATEMENT Notice is hereby given that by petition of March 19, 1979, addressed to the Chairman of the Nuclear Regulatory Commission, among others, Kay Drey cf University City, Missouri, requested that an Environ-mentil Impact Statement be prepared on the proposed dec:ntanination experiments at the Dresden Nuclear Power Station,1:cated in Grundy C o u nty, Illinois'. which are designed to flush radicactive ccrrosion products from portions of the facility's piping.
Tne petition is being treated as a request for action under.10 CFR.2.206 of the C: mission's regulations, and accordingly, action will be taken on the petition within a reasonable time.
A c:py of the request is available for inspection in the Commission's Public Document Roca,1717 H Street, N. W., Washington, D. C.
20555, and at the local public document room for the Dresden Nuclear ower Station, o
located at Morris Public Library, 604 Liberty Street, Morris, Illinois 50251.
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