65B-WD_4808_5_1_-_-.pdf

This is a set of technical engineering drawings for the secondary drainage system of the USCG Cutter SANGAMON (WLR-65506), prepared by U.S. Coast Guard Naval Engineering. The drawings detail the hold plan, inboard profile, discharge piping isometric views, and retention tank specifications.

The drawings provide comprehensive technical specifications for the ship's drainage infrastructure, including galley drains, grease traps, pipe hangers, bulkhead penetrations, and discharge points. A detailed bill of materials lists required components such as valves, flanges, couplings, and piping specifications. The retention tank drawing shows a multi-compartment design with baffles and specific dimensions. The documents appear to be part of the technical package supporting maintenance work on the vessel's sewage and gray water systems, providing contractors with necessary engineering details to perform cleaning, flushing and inspection services.