This publication provides introductory technical guidance for civil engineers, environmental engineers and other professional engineers and construction managers interested in design and construction of water treatment systems using precipitation, coagulation and flocculation methods. Here is what is discussed: 1. EQUIPMENT REQUIREMENTS, 2. SYSTEM COSTS, 3. PRE-STARTUP CHECKOUTS, 4. PRE-STARTUP TESTING, 5. STARTUP, 6. FIELD TRAINING, 7. SHUTDOWNS, 8. OPERATION AND MAINTENANCE MANUAL UPDATES, 9. OPERATION