ML19269E754
| ML19269E754 | |
| Person / Time | |
|---|---|
| Site: | Zimmer |
| Issue date: | 06/01/1979 |
| From: | Wetterhahn M CONNER, MOORE & CORBER |
| To: | Bechhoefer C, Bright G, Hooper G Atomic Safety and Licensing Board Panel |
| References | |
| NUDOCS 7906290575 | |
| Download: ML19269E754 (8) | |
Text
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1.AW OFFICES CONNER. MOORE & CORBER 1747 PENNSYI.VANIA AVENUE N. W.
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MARE J. WETTEREAXN DONA LD J. BALS LET, JR.
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CABLE ADDRES S: ATON LAW Char *es Bechhoefer, Esq.
Dr. Frank F. Hooper, Member Chairman, Atomic Safety Atomic Safety and Licensing and Licensing Board Board U.S. Nuclear Regulatory School of Natural Resources Commission University of Michigan Washington, D.C.
20555 Ann Arbor, Michigan 48109 Mr. Glenn O. Bright, Member Atomic Safety and Licensing
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In the Matter of Q,.,
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The Cincinnati Gas & Electric Company, et al \\fQ, *,~g; s '
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Zimmer Nuclear Power Station)
Teh Docket No. 50-358 Gentlemen:
In accordance with the schedule established by the Licensing Board, enclosed is testimony relating to Contention 6 as requested by the Licensing Board (Tr. 457-9), and the Professional Qualifications of Earl A.
Borgmann, the Appli-cants' lead witness in this proceeding.
The Professional Qualifications of Kevin Rooney and Jamee 5chott have already been transmitted to the Board and parti.es as attachments to Applicants' Motion for Summary Disposition.
To the extent it relates to Contention 6, Mr. Rooney's affidavit of April 5, which was also attached to the Motion for Summary Disposition, will be introduced into evidence.
Sincerely, Mark J. Wetterhahn Counsel for Applicant cc:
Per Service List 2142 297 790629057 f '
TESTIMONY RELATING TO CONTENTION 6 CALCULATIONS OF POTENTIAL DOSES AT THE MOSCOW ELEMENTARY SCHOOL RESULTING FROM RELEASES FROM THE ZIMMER NUCLEAR POWER STATION In response to a request of the Atcmic Safety and Licensing Board (Tr. 457-9), this testimony sets forth in greater detail the assumptions and methodology utilized in calculating doses due to release of effluents from the Zimmer Nuclear Power Station at the Moscow Elementary School pursuant to the requirements of 10 C.F.R. Part 50, Appendix I.
In response to Contention 6, doses have been calculated to children at the Moscow Elementary School applying the methodology which is used to demonstrate Station compliance with the design objectives of Appendix I to 10 C.F.R. Part 50.
This methodology is also utilized in NUREG-0265, " Final Environmental Statement related to operation of William H.
Zimmer Nuclear Power Station."
The Moscow Elementary School is located 845 meters in the south and southeast sectors from the Station.
Because of the distance and direction of the School from the Station, the annual average doses determined for the School are only a fraction of the doses to the individuals who are calculated to have the highest exposure due to various pathways as listed in Table 5.12 of the FES.
2142 298 Two parameters determine the potential dose received by individuals as a result of emissions of radioactive material from a nuclear power plant, (1) the material released and (2) the dispersion of such material in the atmosphere.
The measure of atmospheric dispersion is referred to as X/Q, and is a function of Station meteorology.
Th'e quantity X/Q, which is a function of direction and distance downwind, is calculated using the meteorological data observations
[ Summary Wind Rose] in accord with the formulae given in Regulatory Guide 1.111.
The release of radioactive materials has been determined for the Wm.
H. Zimmer Nuclear Power Station in accord with Regulatory Guide 1.11.
This document references NUREG-0016,
" Calculation of releases of Radioactive Materials in Gaseous and Liquid Effluents from Boiling Water Reactors (BWRGALE Code)."
This computer code (BWR-GALE) was developed to reflect the industry experience with respect to releases of radioactive materials from BWRs and to reflect the effectiveness of design features employed to reduce emissions of radioactive materials.
This code was used to calculate annual gaseous releases to the environment.
Dose conversion formulae and dose conversion factors from Regulatory Guide 1.109 were utilized.
2142 299 Because the distance to the school had been stated to be 1/2 mile in the record, the potential dose calculations were conservativelf made for that distance (805 meters),
while the actual distance from the vent to the school was 845 meters.
To provide a conservative estimate of the calculated doses to children at the Moscow Elementary School, the following assumptions were made:
(1) The station was assumed to operate at 100% power 80% of the time; (2) The school was considered to be located 805 meters from the Station; (3) Another conservatism was that the X/Q associated with the SSE sector from the Station was used to determine estimated doses.
(It is a factor of about 1.5 higher than the south sector in which the school is actually located];
(4) Further conservatism in the calculation is that the school is assumed to be occupied by children 2200 hours0.0255 days <br />0.611 hours <br />0.00364 weeks <br />8.371e-4 months <br /> per year.
Under Ohio law, public schools are required to be in session for 175 days per year and 6 1/3 hours per day.
On this basis, the actual total occupancy of the school would be about only 1140 hours0.0132 days <br />0.317 hours <br />0.00188 weeks <br />4.3377e-4 months <br /> per year; (5) No credit is taken for the shielding afforded by the school.
The school children are assumed to be outdoors.
The gamma ray producing the whole body dose are soft, so that significant shielding would be realized by the school 2142 300 shelter.
[For comparison, an expected additional dose to the children from a 1000 hour0.0116 days <br />0.278 hours <br />0.00165 weeks <br />3.805e-4 months <br /> exposure to the brick school structure itself is approximately 6.8 mrem /yr.];
(6) No credit is taken for the disturbance from outdoor concentrations by being indoors, in calcelating inhalation and skin doses; (7) As stated in the Affidavit of Kevin Rooney dated April 5, 1979, the annual doses at the Moscow Elementary School that result from the release of effluents from the Zimmer Station were calculated to be 0.035 mrem /yr. whole body, 0.058 mrem /yr. skin and 0.009 mrem /yr. thyroid in-halation due to the airborne effluents.
These are well within the design objectives contained in Section II A-C of 10 C.F.R. Part 50.
2142 301
QUALIFICATIONS EARL A.
BORGMANN SENIOR VICE PRESIDENT THE CINCINNATI GAS & ELECTRIC COMPANY My name is Earl A.
Borgmann.
My business address is 4th & Main Streets, Cincinnati, Ohio.
I am Senior Vice President for The Cincinnati Gas & E'ectric Company.
In this position, I am responsible for design, construction management, operation, and maintenance of the Wm. H.
Zimmer Nuclear Power Station.
I graduated from Purdue University in 1948 with a Bachelor of Science in Mechanical Engineering degree.
I joined the CG&E Co. in September of 1948 as a Cadet Engineer and spent two years in a company-wide training program covering all phases of the utility's operation.
After this, I was assigned to the Mechanical Section of the General Engineering Department where I was given various assignments involving the installation or modification of mechanical equipment in our electrical generating stations.
During the period 1950-1953, I served as one of the mechanical engineer-inspectors during the erection of the first two generating units at the Walter C.
Beckjord Generating Static..
From 1954-1957, I was involved in the procurement of mechanical equipment for Units 3 and 4 at Walter C.
Beckjord Station as well as being directly responsible for various mechanical engineering projects during this period.
2142 302 In 1957, I was made mechanical project engineer during the latter engineering and construction phases of Unit 4 at Walter C.
Beckjord Station and served as mechanical project engineer for Units 5 and 6 at Walter C. Beckjord Station during the period 1959 through 1968.
In July, 1969, I was appointed Principal Mechanical Engineer of the General Engineering Department where I was responsible for all mechanical engineering work assigned to that department.
Primarily, this involved the mechanical design of generating stations, but engineering assignments for other company operations were involved, as well.
In May of 1974, I was named Manager of the General Engineering Department and was responsible for the engineering and construction of generating stations, major substations, and other engineering projects assigned to the General Engineering Department.
In July of 1975, I was named Vice President - Engineering and was responsible for all activities of the General Engineering Department as well as for all company licensing and environmental matters.
In September, 1978, I was named Vice President -
Engineering Services and Electric Production and in April of 1979, I assumed the responsibilities of my present position as Senior Vice President.
In 1970, I participated in a Gulf General Atomic nuclear familiarization course and in 1971 completed the 2142 303 36 week NUS course, Introduction to Nuclear Power.
I have actively participated in the licensing activities to date for the Wm.
H.
Zimmer Nuclear Pover Station.
I am a registered professional engineer in the State of Ohio, a member of the American Society of Mechanical Engineers, and a member of the American Nuclear Society.
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