Water Treatment Operations Made Easy: A Practical Guide for Licensure

Wastewater Treatment Plant Operations Made Easy: A Practical Guide for Licensure

Water and Wastewater Conveyance: Pumping, Hydraulics, Piping, and Valves

Blueprint Reading: Fundamentals for the Water and Wastewater Maintenance Operator

The Handbook of Meteorology

Mathematics Manual for Water and Wastewater Treatment Plant Operators: Wastewater Treatment Operations: Math Concepts and Calculations

Industrial Hygiene Simplified: A Guide to Anticipation, Recognition, Evaluation, and Control of Workplace Hazards

Mathematics Manual for Water and Wastewater Treatment Plant Operators: Water Treatment Operations: Math Concepts and Calculations

Safety Engineering: Principles and Practices

Mathematics Manual for Water and Wastewater Treatment Plant Operators: Basic Mathematics for Water and Wastewater Operators