Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)
Paper format. National Exams, May 2019 — 16-Civ-A3 Elementary Environmental Engineering. Closed book (one 8.5″×11″ double-sided aid-sheet), 3 hours. Seven problems; any five constitute a complete paper (each 20 marks). All seven are solved here as a study resource.
Reference texts. Davis & Cornwell, Introduction to Environmental Engineering (5th ed.); Mihelcic & Zimmerman, Environmental Engineering: Fundamentals, Sustainability, Design (3rd ed.); Metcalf & Eddy, Wastewater Engineering: Treatment and Resource Recovery (5th ed.); MWH (Crittenden et al.), Water Treatment: Principles and Design (3rd ed.); CCME Canadian Environmental Quality Guidelines; Health Canada Guidelines for Canadian Drinking Water Quality; Impact Assessment Act (Canada, 2019).