This document contains a table of contents that lists various topics related to building structures, plumbing systems, water treatment processes, wastewater treatment, sanitary landfills, and engineering drawings. Specifically, it outlines sections on symbols, structural profiles, projections, water intake structures, processes for water treatment plants (layouts, hydrolic profiles, coagulation units, etc.), wastewater treatment (IPAL and IPLT layouts), drainage systems, water distribution networks, bathrooms, and landfill site plans. Engineering drawings listed include floor plans, sections, isometrics, and 3D models.