Portland Water District Continues to Tackle PFAS Contamination in Biosolids; Advanced Study Makes Recommendations
Portland Water District (PWD) is finding innovative and cost-effective ways to meet the mounting challenges and limitations of biosolids management. Per State of Maine law, biosolids, the solids product of wastewater treatment, can no longer be applied to fields or composted as was the practice for many decades. It must be landfilled due to concerns…