Share on LinkedInShare on LinkedIn

ARTICLE · 19 AUGUST 2026

There Is "Reasonable Potential" To See PFAS In Your Next NPDES Permit

K&L Gates
K&L Gates
Contributor
K&L Gates

K&L Gates

The Firm K&L Gates is an integrated, international law firm. As a single global law firm, truly...

View firm profile
Explore more from K&L Gates

The EPA's Environmental Appeals Board has ruled that permitting authorities must evaluate PFAS discharges against narrative water quality standards even when numeric criteria have not been approved...

United StatesEnvironment
Christine A. Jochim
Christine A. Jochim
David L Rieser
David L Rieser
Maureen O'Dea Brill
Maureen O'Dea Brill
Michael S. Heard Snow
Michael S. Heard Snow

On 12 August 2026, the US Environmental Protection Agency’s (EPA) Environmental Appeals Board (EAB)1 remanded EPA Region 1’s (the Region) renewal of a National Pollutant Discharge Elimination System (NPDES) permit under the Clean Water Act for the City of Manchester, New Hampshire (the City) for discharges from a wastewater treatment facility, holding that the Region committed clear error in refusing to evaluate per- and polyfluoroalkyl substances (PFAS) discharges against applicable narrative water quality standards.2 The Region had taken the position that it could not conduct a “reasonable potential” analysis for PFAS because EPA had not approved New Hampshire’s proposed numeric PFAS criteria. The EAB rejected that rationale as inconsistent with EPA’s own regulations and precedent, and remanded the permit to the Region. This decision has implications for NPDES permittees nationwide facing similar PFAS (or other emerging contaminant) issues where numeric standards are not yet adopted.

We operate a free-to-view policy, asking only that you register in order to read all of our content. Please login or register to view the rest of this article.

Register for freeORLog in

The content of this article is intended to provide a general guide to the subject matter. Specialist advice should be sought about your specific circumstances.

View source

Related Articles

Legal Intelligence Newsletters: sign up for the latest legal and regulatory news on your chosen topics

Read more about

Related Comparative Guides

See more popular content from

Article

Texas Governor Abbott Directs TCEQ To Freeze All Data Center Permits In A Whole-of-Government Action

Governor Greg Abbott has ordered the Texas Commission on Environmental Quality to immediately halt all environmental permits for data center projects, expanding a statewide regulatory freeze that now encompasses power, water, and environmental approvals. This directive establishes strict operational mandates requiring data centers to fully fund infrastructure costs, report all resource consumption...
United StatesEnvironment
Foley & Lardner LLP
Foley & Lardner LLP
Article

Governor Abbott Orders TCEQ To Pause All Permit Issuance For Data Center Projects

Governor Abbott has ordered Texas environmental regulators to halt all data center permit issuance until grid operators complete a comprehensive audit in mid-December 2026. The sweeping directive affects not only grid-connected facilities but also fully islanded data centers relying on behind-the-meter generation, creating uncertainty for developers and their contractual obligations.
United StatesEnvironment
Bracewell LLP
Bracewell LLP
Article

Texas Governor Directs A Halt On Data Center Permitting With State Agency Audits

Texas Governor Greg Abbott has directed state agencies to halt all data center permits until comprehensive audits assess the projects' impacts on electric infrastructure, residential ratepayers, and water resources. The directive requires data centers to fully fund necessary electric infrastructure and comply with enhanced reporting requirements, while the governor signals potential legislative action to codify new protections and phase out certain tax incentives.
United StatesEnvironment
Greenberg Traurig
Greenberg Traurig
Article

Governor Signs Seven Data Center Bills Addressing Energy And Noise Reporting, Water Use, Labor Standards, Electricity Rates, And CEQA Review

California has enacted seven unprecedented bills targeting data center development, imposing sweeping new requirements for energy reporting, water consumption assessments, labor standards, and electricity rate structures. These laws fundamentally reshape the regulatory landscape for data centers, requiring detailed disclosures at multiple project stages while prohibiting categorical CEQA exemptions and establishing new interconnection rules that shift infrastructure costs directly to developers.
United StatesEnvironment
Cox, Castle & Nicholson
Cox, Castle & Nicholson
Article

District Court Enjoins EPA From Reclassifying California’s Clean Air Act Waivers

A federal district court has preliminarily enjoined the EPA from reclassifying California's Clean Air Act preemption waiver orders as "rules" subject to the Congressional Review Act. The court found that EPA's reclassification likely violated the Administrative Procedure Act and exceeded the agency's authority, though the order does not prevent Congress from proceeding with pending disapproval resolutions.
United StatesEnvironment
Arnold & Porter
Arnold & Porter
Article

California Links Data Center Permitting And Licensing To New Water Use Disclosure And Drought Planning Obligations

California has enacted comprehensive legislation requiring data center developers to disclose water usage and demonstrate supply adequacy before obtaining permits. These new laws impose water supply assessments, efficiency reporting, and drought contingency planning obligations that fundamentally reshape the regulatory landscape for data center development in the state.
United StatesEnvironment
Allen Matkins Leck Gamble Mallory & Natsis LLP
Allen Matkins Leck Gamble Mallory & Natsis LLP
Article

EPA Issues Decisions On Small Refinery Exemptions

The EPA has released decisions on 34 small refinery exemption petitions from 2025, granting full or partial exemptions that total 1.76 million RINs - significantly more than initially estimated. This discrepancy has prompted the agency to announce a new rulemaking that will reallocate 100 percent of exempted volumes to 2026 and 2027 renewable volume obligations, potentially increasing compliance burdens for nonexempt obligated parties.
United StatesEnvironment
Holland & Knight
Holland & Knight
Article

Text-Message Marketing In Texas, One Year After SB 140

Texas Senate Bill 140 (SB 140) took effect 1 September 2025, and applies to conduct occurring on or after that date. The bill amended Section 302 of the Texas Business and Commerce Code to extend registration and disclosure requirements to text messages by expanding the definition of “Telephone solicitation,” which previously applied only to a “telephone call,” to include certain transmissions of text or graphic messages and images. In addition, SB 140 added a definition of “Telephone call” that incorporates the definition found in Section 304, which includes certain text or graphic messages and images, but excludes certain agreed-to transmissions.
United StatesMedia, Telecoms, IT, Entertainment
K&L Gates
K&L Gates
Article

SEC And CFTC Open Door To Tokenized Markets After Clarity Fails To Advance

The SEC and CFTC have issued coordinated regulatory relief measures that significantly advance crypto-based trading infrastructure in US markets, bypassing Congressional gridlock on the CLARITY Act. These orders establish new frameworks for tokenized securities venues and passive software providers, potentially reshaping how digital assets are traded and accessed in regulated markets.
United StatesFinance and Banking
K&L Gates
K&L Gates
Article

EU AI Act: Final Guidelines On Transparency Obligations Under Article 50

The European Commission has issued guidelines on transparency obligations under Article 50 of the EU AI Act, clarifying how providers and deployers must inform individuals when they interact with AI systems or are exposed to AI-generated content. These non-binding guidelines address a wide range of AI applications, from chatbots to deepfake technologies, and establish four main transparency scenarios with specific disclosure requirements that businesses must now prepare to implement.
European UnionGovernment, Public Sector
K&L Gates
K&L Gates
Article

Venezuela's Reopening: Investment, Infrastructure, And Technology Opportunities In A Rebuilding Latin America

Venezuela's post-Maduro reopening is creating unprecedented opportunities for foreign investors across energy, mining, telecommunications, and infrastructure sectors. With expanding OFAC sanctions relief, landmark legislative reforms, and major US companies nearing multibillion-dollar deals, the country presents investment prospects not seen in a generation—though success requires disciplined navigation of corruption, security, and regulatory risks.
United StatesInternational Law
K&L Gates
K&L Gates
Article

New EU Withdrawal Button Requirement: Practical Implications And Recommendations For US And Global Online Sellers

The European Union's new Consumer Rights Directive amendment introduces a mandatory "withdrawal button" for online merchants, fundamentally changing how consumers exercise their 14-day right of withdrawal from distance contracts. This requirement, effective June 19, 2026, applies to any trader—including US-based companies—actively selling to EU consumers, creating new compliance obligations around button placement, design standards, data collection, and confirmation processes. Understanding whic
European UnionConsumer Protection
K&L Gates
K&L Gates
Article

United States Opens A New Chapter In Civil Nuclear Cooperation With The Kingdom Of Saudi Arabia

The United States and Saudi Arabia have signed a landmark nuclear cooperation agreement under Section 123 of the Atomic Energy Act, establishing the legal framework for decades of civilian nuclear partnership. This agreement resolves years of debate over nonproliferation conditions and positions US companies to participate in Saudi Arabia's ambitious civil nuclear program. The deal carries significant implications for US engagement in the Middle East, international nuclear commerce, and the global competiti
GlobalGovernment, Public Sector
K&L Gates
K&L Gates
Article

China’s A-Share Market Expands Closing-Price Trading: Implications For Funds And Institutional Investors

China's stock exchanges have implemented three major trading rule changes effective July 6, 2026, designed to enhance market quality and align practices with international standards. The reforms expand after-hours trading, modify public fund pricing mechanisms, and adjust price limits for risk-warning stocks. How will these structural changes impact institutional investors, ETF efficiency, and overall market participation in China's evolving capital markets?
ChinaFinance and Banking
K&L Gates
K&L Gates