Power Plants Get Extra Time to Cut Water Pollution
Published Date: 12/31/2025
Rule
Summary
The EPA is giving steam electric power plants more time to meet new water pollution rules and letting them switch how they comply based on their situation. These deadline extensions and flexible options help plants manage costs and paperwork better. The new rules kick in March 2, 2026, giving everyone a bit more breathing room to clean up their act.
Analyzed Economic Effects
5 provisions identified: 5 benefits, 0 costs, 0 mixed.
Zero-discharge Deadline Extended to 2034
The EPA delays the generally applicable BAT zero-discharge compliance deadline for BA transport water, FGD wastewater, and combustion residual leachate (CRL) from December 31, 2029 to December 31, 2034. This gives steam electric power plants five more years to meet the zero-discharge requirements.
NOPP Submission Date Pushed Back
The rule extends the deadline for submitting a Notice of Planned Participation (NOPP) for facilities seeking permanent cessation of coal combustion. The preamble states the NOPP submission date is extended to December 31, 2034 to give utilities more time for planning.
Tiered Pretreatment Standards Added
EPA establishes tiered pretreatment standards for existing sources (PSES). The rule creates a compliance pathway for indirect dischargers planning to become direct dischargers and aligns pretreatment compliance deadlines with BAT deadlines.
Facilities Can Switch Compliance Paths
EPA revises the transfer provisions at 40 CFR 423.13(o) so facilities may switch between compliance alternatives based on their situation. This lets plants change how they meet the rule instead of being locked into one path.
Site-Specific Dates for Applicability and Paperwork
The final rule adds authority in 40 CFR 423.18 to set alternative applicability dates and paperwork submission dates based on site-specific factors. Regulators can now set different deadlines for particular facilities when justified.
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Key Dates
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