IR 05000334/1978018
| ML20244A462 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 08/17/1978 |
| From: | Deimig R, Raymond W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | |
| References | |
| 50-334-78-18, TAC-7655, NUDOCS 7809270160 | |
| Download: ML20244A462 (2) | |
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7.
Seismic Instrumentation The licensee submitted LER 78-28 on April 13, 1978, together with an updated report on June 29, 1978, to describe equip-ment problems and proposed corrective actions associated with the Accelerograph Recording portion of the Seismic Instrumentation System.
Information provided by the LERs attributed the system problems to an irreparable failure of the Magnetic Tape Cartridge Handler (Model MTS-100), which will require until December 31, 1978, to replace and to return the Seismic Instrumentation System to a fully operational status.
So as a result of discussions with licensee personnel, regarding the Seismic Instrumentation System operability, the inspector requested the licensee to submit to NRC a second update to the special report which addresses the following areas:
a.
the present status of the system using Technical Specifi-cation Table 3.3-7 as a basis to define the portions of the system affected; b.
an evaluation to demonstrate why it is acceptable for the system to remain in its present status until December 31, 1978; and, c.
what measures can or will be taken to improve the system operability during the interim period.
The inspector stated that the updated report would be due by August 15, 1978.
This item is unresolved pending receipt of the update report and subsequent review by the NRC of the Seismic Instrumentation System Operability (334/78-18-02).
8.
Controls Established in Regard to Mobil Oil Pipeline The inspector interviewed licensee personnel and walked down the marked location of the 8" Mobil Oil pipeline that traverses the-Units I and II sites to verify that controls had been established and actions were taken by the licensee in accordance with a July 17,1978 letter to NRC:NRR.
The following summarizes the inspector's findings.
a.
A DLC Construction Superintendent letter, BVPS:RJS:12241:313, was issued on June 19, 1978, providing instructions to the S&W Resident Manager to:
1) restrict all excavation activities within 25 feet on either side of the centerline of the pipe-line; and, 2) restrict stocking of material or movement of equipment in excess of 60 tons in a restricted area marked by d ?6J w
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y-stakes and signs along the pipeline's length.
The order was f
discussed verbally with the S&W Construction Superintendent on June 16, 1978, who was directed to conform with the re-strictions until notified otherwise.
DLC construction specialists were assigned to maintain daily cognizance of the job site and to ensure enforcement of the restrictions.
b.
The inspector walked down the path of the pipeline through the site with a construction specialist to verify that clearly marked stakes and flags, in addition to posted load 1,imit signs, were in place.
No excavations within the restricted area were observed.
In discussing various loads and equip-ment present on the jobsite, the inspector noted that two large cranes weighing 120 tons were present, but were dedicated to special jobs and mounted on immovable platforms located well away from the pipeline path.
The largest single load which traversed the pipeline path was a 45 ton crane.
No major loads (such as vessels, steam generators, etc.) were scheduled to be moved out of storage to the vicinity of the pipeline in the near future.
The inspector noted that no excavations within the restricted area existed.
Ground was excavated at the point along the pipeline where a check valve will be installed in the pipeline, but the excavation had been subsequently filled pending arrival of Mobil Oil Company representatives to perform the subject work.
c.
Agreements have been reached with the Mobil Oil Company and a line of communications has been established with Mobil Oil Control operators to effect rapid shutdown of the pipeline should the need arise.
BV Unit I control operators have been provided with a telephone number for the Mobil Oil Control Station, such that a Station Control Operator, providing the appropriate identification, can obtain an immediate shutdown of the line.
Mobil Oil regional representatives are reportedly able to arrive at the site within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> to conduct followup investigations.
The inspector noted that the controls established by the licensee appeared consistent and effective in complying with the conditions set forth in the July 17, 1978 letter.
The inspector had no further questions on this item at this time.
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