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8 3.3 Cathodic Protection System (C. P.) 3.3.1 There are remnants of a submerged C. P. system which at some point has been removed. See photo 21. While most of the components have been removed, some remain and should be removed in conjunction with the next reconditioning. While C. P. is considered an inexpensive form of interior corrosion protection, it is not be required if the coating is applied and maintained properly. 3.4 Interior Dry Structural 3.4.1 Remove and replace the inoperable pipe -style ladder safety climb device on the ladder in the drywell tube with a new OSHA compliant cable - style ladder safety climb device, which accept more universally available grabs. See photos 25 through 27 and KLM Drawing No. 21. Similarly, install a cable -style ladder safety climb device on the ladder to the bowl manway. See photo 33. The owner may wish to consider installing safety climb devices on each of the other ladders in the pedestal as well, although this is not included in the Engineer's Cost Estimate. 3.4.2 Install ports in the center of the drywell tube floor and the condensate ceiling, to facilitate containment during the next reconditioning. See photos 28, 29 and 36 and KLM Drawing No. 52. 3.4.3 Install a new 24 -inch diameter, pressure style manway in the upper bowl. This will improve the ventilation during reconditioning and bring the tank into compliance with OSHA Confined Space Entry requirements. This manway should include a ladder from the top platform to the bowl for safe access. See KLM Drawing No. 26. 3.4.4 Additional structural items are included in Section 3.9, Telecommunications Considerations, as they relate to the telecommunications installations on the tower. 3.5 Interior Dry Coating 3.5.1 The tower was built and the interior dry area was last coated in 1992. The interior dry coating is in good to excellent condition, with coating failures limited to areas susceptible to condensation or standing water, such as the drywell tube, bowl, the platform floors, and the piping in the valve pit. These areas should be repaired in conjunction with interior wet coating replacement. The remainder of the coating is in excellent condition and requires no repairs. See photos 25 through 40.