ML19257A457
| ML19257A457 | |
| Person / Time | |
|---|---|
| Site: | Limerick  |
| Issue date: | 12/14/1979 |
| From: | Harold Denton Office of Nuclear Reactor Regulation |
| To: | Chilk S NRC OFFICE OF THE SECRETARY (SECY) |
| Shared Package | |
| ML19257A458 | List: |
| References | |
| SECY-A-79-83, NUDOCS 8001040341 | |
| Download: ML19257A457 (2) | |
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MEMDRANDUM FOR: Samuel J. Chilk, Secretary, Office of the Secretary of the Comission THRU:
Lee V. Gossick, Executive Director for Operaticns FROM:
Harold R. Denton, Director, Office of Nuclear Peactor Regulation
SUBJECT:
REQUEST FOR SCHEDULE OF ONG0ING STAFF REVIEW DISCUSSED IN THE DIRECTOR 'S PARTI AL DEMI AL OF 2.2061 0R LIMERICK (SECY-A-79-83 )
By memorandum dated November 30, 1979 you requested the schedule for the r.taff review of three subjects identified in the Director's Decision t'nder 2.206 for the Limerick f acility. The three subjects were (1) investigatien of the effects of nearby blasting on the Limerick facility, (2) review of Philadelphia E'ectric Company's (PECO) response to IE Bulletin 79-14 and (3) review of PEC0's analysis and corrective actions concerning the separation gaps between seismic Cat ! gory I structures. The status and schedule of each of these subjects is ciscussed below.
Regarding the first item, the technical review is being conducted by the ieo-sciences Branch, DSS and the U. S. Geological Survey (USGS). Since the teginning of this special review, a number of reports discussing the geology at th(
Limerick site have been reviewed. Also, the staff Fas contacted the oper itors of the Pottstown Trap Rock Quarry (the quarry where the blasting is beint done) and discussed its blasting methods. The staff and the USGS will visit the quarry and the Limerick site on December 18, 1979 and also meet with PECl' and its consultants. If the site visit and meeting confirm our current understanding of the situation, the USGS's report resolving the matter can be expected by February 1, 1980.
If as a result of the meeting, we find that additional infor-mation on the effects of the blasting must be acquired by PECO, then the end of the review will be determined by the time required for PECO's response and our review of PEC0's response.
Regarding the second item, PEC0 submitted its response to IE Bulletin 79-14 ci October 30, 1979.
In suniary, PEC0 stated that "he inspections requirtd by IE Bulletin 79-14 were impractical at this time because safety-related piping systems are still being designed ano constructed. Based on projections pre-sented to the Caseload Forecast Panel in August 1979, it appears that 75L or less of the linear feet of large pipe (greater than 2.5 inches in diameter) have been installed and 27% or less of the linear feet of small pipe (le;s than 2.5 inches in diameter) have been installed. TEC0 went on to say that after the safety-related piping systems are completed, the as-built configura-tion will be inspected by stress analysts to ensure that the seismic ana;ysis applies to the actual configuration of the piping. PEC0's response is te be 1685 343 80 01040 b N/
Samuel J. Chilk reviewed by IE - Region I.
The schedule for the review of compliance with IE Bulletin 79-14 has not been establishea at this time since it is dependent on PECO's schedule for canpletion of piping design and construction, PEC0's schedule for the inspection of the as-built configuration, and the availability of appropriately qualified individuals at Region I who are currently conducting inspections relative to IE Bulletin 79-14 at operating plants. However, resol u-tion of this matter will be canpleted prior to fuel load for the Limerick facility which is at least two years away.
With regard to the third" item, PEC0's report was submitted to IE - Region I on June 13, 1978. Because of the technical content of the report, it was sub-sequently forwarded to IE - Headquarters. The review of the report had been preempted by items of higher priority, but has now been initiated. Both IE and NRR personnel will be involved in the review. The review is scheduled fcr corH pletion by the end of February 1980.
Harold R. Denton, Director Office of Nuclear Reactor Regulation 1685 544