ML20004C700
| ML20004C700 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 04/22/1981 |
| From: | Daltroff S PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| Shared Package | |
| ML20004C697 | List: |
| References | |
| NUDOCS 8106040532 | |
| Download: ML20004C700 (3) | |
Text
-
g 4
PHILADELPHIA ELECTRIC COMPANY 2301 MARKET STREET P.O. BOX 8699 1881 1981 PHILADELPHIA. PA.19101 swestos t.o4Lisiorr stactnec 00 c tom April 22, 1981 Re: Docket !!cs. 50-277 50-278 Inspection flo. 50-277/80-18 50-278/90-10 Pr. ' Bo yce H. Gr ier, Director Of fice of Inspection & Enforcement Region I US ?!u-lear Regulator y Commission 631 Park Avenue King of Prussia, PA 19406
Dear Mr. Grier:
Yo ur letter of April 2, 1981, forwaraed combined Inspection Report 50-277 /80-18 and 50-278 /90-10.
Appendix A of your letter addressed "Significant Appraisal Findings" identified during review of our Health Physics program.
A response to the items identified in Appendix A was requested within twenty days of receipt of your letter, however, due to the scope of this request we did not feel we could adequately respond within the allotted t im e.
'd. J. Knapp, Philadelphia Electric Compan y, contacted G.
fl. Smith, ?!RC Region I, on April 7, 1981, at which time it was agreed to extend our submittal date for the items in Appendix A by forty-five days.
Therefore, we will' provide a complate response to the Appendix A findings by June 5, 1991.
Appendix B of your letter addresses two items which do not appear to be in full compliance with Nuclear Regulatory i
requirements.
These items, categorized as infractions, are i
restated below with our responses.
l l
t I
8106040 W
y -
+
t
[
- Pr. Doyce H. G6ier Page,2 e
10 CFR 20.201(b). " surveys," requ' ire that such surveys be conducted as.may be necessary to comply with the regulations
-contained in each section of 10 CFR 20.
A " survey," as defined -in paragraph 20.201( a), means' "an evaluation of-the hazards : incident to production, use, release, disposal, or presence of radioactive materials or other sources of' radiation: under a _ specific set of conditions.
When appropriate, such evaluation includes a physical survey of.
the' location of. materials and. equipment, and measurements of
' levels of radiation or concentrations of radioactive materials pr esent."
~ Contrary to the above:
.1.
As.o f June 27, 1980, an alpha survey program _had not
.been established to evaluate in-plant surface contamination levels or airborne concentrations ta) demonstrate compliance with 10 CFR 20.103. (See Section 3.3 of this report)
Response
Dcring initial plant _ operations, alpha surveys per formed-indicated that alpha activity. was not significant enough ta:
require control and_ surveys were discontinued.
following this inspection, alpha surveys by means of alpha analysis of air particulate filters-and loose. contamination smears were per fo rm ed.
The results verified the absence of'an alpha activity problem.
Periodic alpha sampling of air particulate filters and loose contamination smears is now being performed. - When deemed necessary to verify resulta, samples will be shipped to an offsite lab for analysis.
This analysis may include alpha spectroscopy for isotopic identification.
2.
As of June 27, 1980, the validity of the neutron survey results could not be established because the survey meters had not been calibrated to known neutron radiation levels.
Therefore, the dose information recorded on Form NRC-5 could not be substantiated to demonstrate compliance with 10 CFR 20.101..(See Section 3 3 or this report)
Response
As. stated. above, neutron survey meters have not been calibrated
-to known neutron radiation levels.
Calibration performed by the
. vendor involves an electronic check of the count rate circuit with a pulse generator.
The electronic response is checked at four output frequencies.
For gamma discrimination a high voltage
- adj us tm ent is made in a high gamma ex posure field, such as 10 -
m
r-3-
x.
c Mr. Bo yc e H. ' Cr ier Page.3 20 R/hr.
When the detectors tare returned ' to.the site they are response checked.-by exposure - to a neutron source.
~
Arrangements will be made to periodically 1 calibrate our neutron survey meters :to known neutron field : intensities throughout the range.of the ' survey meter.
Initial' calibrations will be
- completed by September 30, 1981.
~
Should.you --have any questions, please don't hesitate to-
. contact us.
Ver y truly yours,
.f i-
/
/ r s
au.
- n, L
r s
,.