ML19309H175
| ML19309H175 | |
| Person / Time | |
|---|---|
| Site: | Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png |
| Issue date: | 04/18/1980 |
| From: | Ziemann D Office of Nuclear Reactor Regulation |
| To: | Counsil W NORTHEAST NUCLEAR ENERGY CO. |
| References | |
| TASK-15-16, TASK-RR NUDOCS 8005090300 | |
| Download: ML19309H175 (3) | |
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- E is NUCLEAR REGULATORY COMMISSION y
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t April 18, 1980 s
Occket :!c. 50-213 I
fir. W. G. Counsil, Vice President Nuclear Engineering and Operations i
Hortheast Muclear Energy Company l
Post Office Box 270 j
Hartford, Connecticut 05101
Dear "r. Counsil:
S' BJECT:
SEP TOPIC X"-16, " Radiological Consequences of Small Lines Carrying J
4 Primary Coolant Outside. Containment"-
We are continuing cur review of SEP Topic XV-16, " Radiological Consequences i
of Small Lines Carrying Primary Coolant Outside Centain,ent" for Haddam Neck and I
have found that the additicnal information described'in the enclosure to this ietter is needed.
We request your response within 60 days after your receiot of this letter.
i Sincerely, 9Y
/ffY W
i 6 Dennis L. Ziemann, Chief j
/
Operating Reactors Branch #2~
' Division of Operating Reactors
Enclosure:
Request for Additional Information cc'w/ enclosure:
See next page s
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Mr.
'd. G. Council April 18, 1980 CC Day, Berry & Howard U. S. Environmental Protection Counselors at Law Agency One Constitution Plaza Region 1 Office Hartford, Connecticut 06103 ATTN:
EIS COORDINATOR JFK Federal Building Superintendent Boston, Massachusetts 02203-Haddam Neck Plant RFD =1 Post Office Sox 127E East Hampton, Connecticut 06424 Mr. Jares R. Himmelwright Nortneast Utilities Service Company P. O. Box 270 Hartford, Connecticut 06101 Russell Library 119 Ercat Street Middletown, Connecticut 05'57 Soard of Selectmen Tcwn hall Haddam, Connecticut 06103 Connecticut Energy Agency ATIN:
Assistant Director Research and Policy Development Departnent of Planning and Energy Policy-20 Grand Street Hartford, Connecticut 06106 Director,: Technical Assess ent' Division Of.fice of Radiation Prograts (AW ?59)
U. S. Environmental Protection :
Agency Crystal Mall =2 Arlington, Virginia 20460 a
SEP Topic XV-16, " Radiological Consequences of Scall Lines Carrying Primary Ceclant Outside Centainment" is intenced to censider the rupture and subsequent radioactive release from lines carrying prirary coolant outside containment.
To evaluate the radiological consequences of postulated failure of such lines, the following is requested:
- 1. Identification of all lines penetrating the containment which contain primary coolant.
- 2. The line size for each line identified in item 1, above.
- 3. The flow rate for a ru;ture in such lines and the assumptions used to determine the flew rate (e.g., the existence of ficw restrictors, their location, etc.).
- 4. The plant locations where the lines traverse and/or terminate.
- 5. The detecticn and isolatien capabilities cf each line break (~ ss'uming the a
postulated break occurs cutside containment).
- 6. The time required to isciate such postulated breaks and the assumptions used in arriving at the tire requi, red.
- 7. The plant areas (where breaks might occur) which are served by ventilation systems utilizing charc:al filters.
- 5. Whether the filters ice.tifiec in item 7, above, are used when the plant is at power.
- 9. Information concerning the charcoal filters, if usec (e.g., thickness, etc.).
- 10. Are any of the plant areas where breaks might occur corpletely sealed (i.e., no ventilation)?
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