"This standard presents criteria for determining: The availability of a surface water supply for plant operation with respect to both safety and nonsafety-related aspects. Water supply related effects of low flows and low levels on plant operation with respect to both safety and nonsafety-related systems.1 1This standard also covers portions of the material requested in Section 2.4@ Hydrologic Engineering@ of Regulatory Guide (RG) 1.70@ ""Standard Format and Content of Safety Analysis Reports for Nuclear Power Plants."""