Mathematics Manual for Water and Wastewater Treatment Plant Operators: Water Treatment Operations: Math Concepts and Calculations, Edition 3

Piping and Valves

Spellman's Standard Handbook for Wastewater Operators: Volume III, Advanced Level, Second Edition, Edition 2

Spellman's Standard Handbook for Wastewater Operators: Volume I, Fundamental Level, Second Edition, Edition 2

Hydraulic Fracturing Wastewater: Treatment, Reuse, and Disposal

The Drinking Water Handbook: Edition 4

Environmental Impacts of Hydraulic Fracturing: Edition 2

Food Supply Protection and Homeland Security

Geography for Nongeographers

Electricity: Fundamentals for the Water and Wastewater Maintenance Operator

Water Hydraulics: Fundamentals for the Water and Wastewater Maintenance Operator

Wastewater Stabilization Ponds

Environmental Science and Technology: Concepts and Applications, Edition 2

Handbook of Mathematics and Statistics for the Environment

Chemical Infrastructure Protection and Homeland Security

Occupational Safety and Health Simplified for the Chemical Industry

Occupational Safety and Health Simplified for the Food Manufacturing Industry