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  • Wastewater Reclamation Conducts Largest PFAS Study Ever Undertaken

    Oct 30, 2020 | Read More News
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    PFAS Study Cover

    In January of 2020, Pima County Regional Wastewater Reclamation Department (RWRD) temporarily moved to suspend the process of land application and proceeded with disposing of biosolids in the landfill. In order to understand the effects of Per- and polyfluoroalkyl substances (PFAS) in land application of biosolids, RWRD partnered with the University of Arizona, Jacobs Engineers and the National Science Foundation and produced PFAS in Biosolids–A Southern Arizona Case Study, one of the largest studies of its kind ever undertaken.

    This study took a broad look at PFAS contamination, retention, and migration in farm soils where biosolids were historically land applied. The data presented demonstrate very low concentrations of PFAS compounds in soils receiving biosolids with migration attenuated in the first few feet of soil.

    RWRD’s highest priority is to protect the public health and we continue to be strong stewards of the environment. As PFAS contamination in the environment continues to garner nationwide scrutiny, RWRD is committed to address emerging contaminants.

    Please take some time to review the in-depth report.