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Biennial Reviews of Sewage Sludge Standards

Clean Water Act (CWA) Section 405(d)(2)(C) requires EPA to review federal sewage sludge (biosolids) standards every two years to identify additional toxic pollutants that occur in biosolids and set regulations for those pollutants if sufficient scientific evidence shows they may harm human health or the environment. The biennial review process is intended to fulfill the CWA requirement to identify additional pollutants that occur in biosolids.

Biennial Reviews: