Florida & Maryland Biosolids Mandates

The legislative dust has settled for the spring 2026 sessions, and the outcome is clear: the regulatory walls surrounding U.S. biosolids management have officially tightened. While the federal government continues to debate drinking water standards, state-level mandates in Maryland and Florida have forged ahead, establishing a strict new “compliance floor” that all facility managers must navigate.

If you are currently managing biosolids disposal in these states, the “business as usual” approach is no longer a viable long-term strategy. Below is your roadmap for compliance and the strategic path forward.

Maryland’s New Law: The October 2028 Horizon

Signed by Governor Moore on April 28, 2026, Maryland’s landmark legislation (Senate Bill 719 / House Bill 925) marks the most significant overhaul of state biosolids policy in a decade.

• The 50 ppb Threshold: Starting October 1, 2028, land application of sewage sludge with a total concentration of regulated PFAS (PFOA and PFOS) at or above 50 ppb is strictly prohibited on agricultural or marginal land.
• The 25 ppb Warning Zone: For concentrations between 25 ppb and 50 ppb, the mandate is already active in practice. Operators must provide a 14-day advance notice to local jurisdictions and landowners before any application.
• The Mitigation Requirement: If monitoring reveals levels at or above 25 ppb, you are legally required to develop and implement a state-approved mitigation plan. This requires demonstrating a clear path toward reduction, potentially utilizing “commingling” (mixing) to lower concentrations—though this temporary bridge expires after two years.

Florida’s July 1 Sampling Mandate

Florida’s 2026 regulatory focus centers on data transparency and environmental containment, driven by the final passage of the state’s latest biosolids and PFAS bills.

• The July 1 Deadline: Effective July 1, 2026, public entities disposing of domestic wastewater biosolids (with a design flow of 25,000+ GPD) must begin quarterly PFAS sampling.
• Informational Status: Crucially, current legislative language notes that this sampling is for “informational purposes” until federal standards are finalized. However, facility managers should treat this as a “pre-enforcement” window. Data collected starting this July will likely form the baseline for future state-level regulatory limits.
• Site Recordkeeping: New recordkeeping rules are now active. Operators must maintain five years of data on the characteristics, quantity, and site-specific locations of all biosolids applications.

Why “Disposal” is the Wrong Long-Term Budget Line

We have moved from a period of “if” to “how.” Whether through mandatory sampling in Florida or strict ppb caps in Maryland, the cost of disposing of biosolids is skyrocketing. The smart money is moving toward on-site conversion.

By transforming a waste stream into a compliant, energy-dense product, you don’t just meet new state requirements—you turn a multi-million-dollar disposal cost into a revenue-generating asset that qualifies for federal clean fuel tax incentives.