The design and construction process -- General water supply design considerations -- Coagulation and flocculation -- Lime-soda softening -- Ion exchange -- Reverse osmosis and nanofiltration -- Sedimentation -- Granular filtration -- Membration filtrarion -- Disinfection and flouridation -- Water plant residuals management -- General wastewater collection and treatment design considerations -- Headworks and preliminary treatment -- Primary treatment -- Wastewater microbiology -- Secondary tretment by suspended growth biological processes -- Secondary treatment by attached growth and hybrid biological process -- Secondary setting, disinfection, and postaeration -- Tertiary treatment -- Wastewater plant residuals management.