Interpreting Soil Test Results is a practical reference enabling soil scientists, environmental scientists, environmental engineers, land holders and land managers to understand and interpret soil results. In this new edition the entire acid sulfate soil section has been replaced with the most current information. The interpretation of some soil chemistry tests has been updated, such as soil phosphorus values based on phosphorus buffering capacity, the influence of sparingly soluble salts and chloride on interpreting salinity data and EC values, and some critical values for soil chloride levels added. The sodicity section has been revised to include the latest information and understanding of sodicity. The soil organic carbon section now includes the latest information and understanding on soil organic carbon. Intensive sampling in small areas and a new section on pipeline corrosion have been added. The soil contamination chapter has been revised, providing the latest understanding and critical values, and a new section on PFAS chemicals added. Interpreting Soil Test Results is an important reference for students of soil science and environmental science and environmental engineering, as well as for professional soil scientists, environmental scientists, engineers and consultants and for local government agencies. It also offers a reference for legal professionals in land and environment cases.