| Nuclear Regulatory Commission

Issue 88: Earthquakes and Emergency Planning

This issue was initiated to address concerns raised by the Union of Concerned Scientists.

The HPCI steam supply line has two containment isolation valves in series: one inside and one outside of the containment. B

In March 1982, leaks were detected in the heat-affected zones of the safe-end-to-pipe welds in two of the 28 in.

In BWRs, SRVs are mounted on the main steam line inside the drywell.

This issue was raised by the ACRS in a memorandum[1]to the Commission in October 1983.

On August 18, 1982, the ACRS issued a letter[1]to the Commissio

The risks of beyond design basis accidents in the spent fuel storage pool were examined in WASH-1400

In October 1982, the Executive Director for Operations appointed the Committee to Review Safety Requirements at Power React

This issue was identified by the ACRS in 1978 during the operating license reviews of some BWRs.

On March 18, 1983, B&W expressed[1]concern for unanalyzed r