NUREG-1537, Part 2 - NRC

CHAPTER 3
Evaluation Findings
This section of the SAR should contain sufficient information to support the
following type of conclusion, which will be included in the staffs safety evaluation
report:
The design to protect against meteorological damage provides reasonable
assurance that the facility structures, systems, and components will perform
the safety functions discussed in the SAR, including the capability to
maintain safe reactor operation, to effect and maintain safe reactor
shutdown conditions, and to protect the health and safety of the public
from radioactive materials and radiation exposure.
3.3 Water Damage
Areas of Review
Areas of review should include the design and design bases for all structures,
systems, and components that could be affected by predicted hydrological
conditions at the site. This should include (1) the impact on structures resulting
from the force or submergence of flooding, (2) the impact on systems resulting
from instrumentation and control electrical or mechanical malfunction due to
water, and (3) the impact on equipment, such as fans, motors, and valves, resulting
from degradation of the electromechanical function due to water.
Acceptance Criteria
The acceptance criteria for the information on water damage include the following:
* The design criteria and designs should provide reasonable assurance that
structures, systems, and components would continue to perform required
safety functions under water damage conditions.
* For the design the applicant should use local building codes, as applicable,
to help ensure that water damage to structures, systems, and components
at the facility site would not cause unsafe reactor operation, would not
prevent safe reactor shutdown, and would not cause or allow uncontrolled
release of radioactive material.
Review Procedures
The reviewer should examine the site description to ensure that all safety-related
structures, systems, and components with the potential for hydrological (water)
damage are considered in this SAR section. The review should include
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