PROJECT PROFILE Palo Verde Nuclear Generating Station Mechanical Draft Cooling Towers Condition Assessment | Tonapah, AZ CLIENT Arizona Public Service BACKGROUND There are nine precast concrete cooling towers of similar construction at the APS Palo Verde Nuclear Generating Station. The towers are configured into three groups of three cooling towers each, with each group corresponding to Unit Nos. 1, 2, and 3, respectively. These towers are Marley Class 700 round cross- flow, mechanical-draft, with the foundation and basin constructed by Bechtel. Each tower is approximately 303 feet in diameter and 46 feet in height. Several rehabilitation measures have been implemented over the years, including replacement of precast elements, surface repairs, and installation

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