Trudy Johnston

Trudy is a partner with Material Matters, and has over 39 years in the municipal and industrial wastewater processing and solids treatment and management field, with 36 years as a consultant. Her primary interests include developing innovative uses and strategies for residuals, optimizing solids processing, conducting solids master studies, assessing compliance with biosolids regulatory standards, data/sample collection and validation, evaluating and resolving odors from residuals, and water quality nutrient trading. She participated in the WERF study with UMASS to assess biosolids stability standards and authored the protocol for the AVSR testing. Trudy has a BS degree in Earth Science from Penn State and is a certified wastewater treatment operator.