PFAS Treatment: A Major Capital Investment Challenge
Water utilities facing PFAS MCL compliance must finance substantial capital investments in treatment infrastructure. The American Water Works Association estimates aggregate utility PFAS compliance costs at $400M–$1.5B annually once MCLs take full effect.
Treatment Technology Capital Costs
Granular activated carbon systems for medium-sized utilities typically cost $5M–$20M in capital, with $500K–$2M annual operating costs. Ion exchange systems have similar capital requirements but lower operating costs for low-PFAS source waters.
Rate Structures and Affordability
Utilities in low-income service areas face rate affordability constraints when recovering PFAS treatment costs. Tiered rate structures, low-income assistance programs, and state revolving fund low-interest loans help manage rate impact for affordability-constrained customers.
Pursuing Responsible Party Cost Recovery
Many utilities are pursuing litigation or settlement negotiations with PFAS manufacturers including 3M and DuPont to recover infrastructure costs. Successful settlements—including 3M’s $10.3B settlement—provide funds that reduce the rate impact on customers.