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SB 719

Sewage Sludge - Per- and Polyfluoroalkyl Substances - Regulation

2026 Regular Session Introduced by Katie Hester and 1 co-sponsor

SB 719 establishes PFAS contamination limits in sewage sludge to prevent "forever chemicals" from entering Maryland's agricultural soils and groundwater through biosolids application.

Approved by the Governor - Chapter 329
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Bill Summary · SB 719

Legislative bill overview

SB 719 addresses the regulation of per- and polyfluoroalkyl substances (PFAS) in sewage sludge in Maryland. The bill establishes standards and restrictions for PFAS contamination in biosolids—the nutrient-rich byproduct of wastewater treatment that is often land-applied as fertilizer. This represents an attempt to prevent "forever chemicals" from entering agricultural soils and groundwater through routine waste management practices.

Why is this important

PFAS are synthetic chemicals that accumulate in the environment and human bodies, linked to serious health effects including kidney disease, thyroid problems, and reduced vaccine effectiveness. When contaminated sewage sludge is applied to farmland, PFAS can migrate into soil, groundwater, and food crops, creating a persistent contamination pathway. This bill directly addresses a known but largely unregulated vector for PFAS exposure affecting Maryland's agricultural regions and water supplies.

Potential points of contention

  • Cost burden on wastewater utilities: Stricter PFAS limits may require expensive treatment upgrades, potentially increasing fees for residents and businesses
  • Standards clarity: PFAS regulation remains inconsistent across states; Maryland's standards could differ from federal EPA guidance, creating compliance confusion
  • Biosolids disposal alternatives: Restricting land application may force costly incineration or landfilling of treated sewage sludge, impacting waste management infrastructure
  • Agricultural impact: Farmers currently using biosolids may face restrictions on a cost-effective soil amendment, affecting farming economics and fertilizer prices

Compiled from official sources — confirm details with the bill’s official record.

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