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Washington Enacts PFAS Biosolids Sampling Requirements Under SB 5033
Chapter 70A.226 RCWWashington State Department of EcologyUS - Washington
Announced
May 19, 2025
Implementation
Jan 1, 2027
Description
Washington enacted Senate Bill 5033 (Chapter 70A.226 RCW) establishing mandatory PFAS sampling requirements for biosolids. Facilities permitted under the Statewide General Permit for Biosolids Management must conduct temporary sampling for PFAS from January 1, 2027 through June 30, 2028. The law mandates testing to determine the extent of PFAS contamination in biosolids widely used in farming, without imposing an outright ban on biosolids use.
Key Findings
Washington Enacts PFAS Biosolids Sampling Requirements Under SB 5033
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