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Ruling in First CWA Case to Rely on EPA’s Interpretive Statement on Groundwater Releases

On November 26, a federal district court judge in Massachusetts held that releases of pollutants reaching surface waters through groundwater do not require permits under the Clean Water Act (CWA), “irrespective of any hydrological connection to navigable waters.” Conservation Law Foundation Inc. v. Longwood Venues and Destinations Inc. et al., 1:18-cv-11821. The decision comes less than three weeks after the U.S. Supreme Court heard oral argument in County of Maui v. Hawaii Wildlife Fund, No. 18-260, in which the justices have been asked to decide whether the CWA’s National Pollutant Discharge Elimination System (NPDES) permitting requirement applies to releases that traverse nonpoint sources—like groundwater—before entering navigable waters.

In 2018, a citizen suit was filed against the owners of the Wychmere Beach Club claiming that the Beach Club’s wastewater treatment facility (in particular, the facility’s 22 leach pits located near the shoreline) discharged nitrogen into the groundwater and subsequently into Wychmere Harbor, a navigable water located off Cape Cod. The complaint accused the Beach Club of violating the CWA by discharging pollutants into the harbor and failing to obtain a federal permit for these releases. The Beach Club argued that it was not liable under the CWA because it released nitrogen into groundwater, rather than directly into the harbor, and that such a release is not covered by the CWA.

Unlike the decisions from the Fourth, Sixth, and Ninth Circuits that have addressed this issue, Longwood is the first case to rely on the April 2019 Interpretive Statement in which EPA concluded that releases traversing groundwater are categorically excluded from the requirement to obtain an NPDES permit. The court concluded that the CWA is ambiguous on the question of whether the statute requires permits for releases that reach surface waters via groundwater. The court then deferred to EPA’s Interpretive Statement under Chevron Step Two after concluding that EPA reasonably decided to exclude releases through groundwater from the NPDES program.

Citing the resultant ambiguity from dueling CWA directives; namely, that the federal government has jurisdiction over the waters of the United States while the states are primarily tasked with groundwater regulation, the court turned to EPA’s April 2019 interpretation of the statute to answer the question of whether – and to what extent – the CWA applies to releases into groundwater that carries pollutants into navigable waters. Finding the agency’s analysis reasonable, the court deferred to EPA’s conclusion that releases of pollutants into groundwater do not constitute point source discharges subject to the NPDES program or permitting requirements.

Until the Supreme Court issues a decision in Maui (expected before the end of June 2020), courts and regulated entities will continue to search for guidance on how the CWA applies to mediated releases of pollutants to surface waters. The Longwood decision’s approach—relying on EPA’s recent guidance—applies only to groundwater and offers no comfort to litigants in the Fourth and Ninth Circuits.

© 2020 Beveridge & Diamond PC National Law Review, Volume IX, Number 338

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Richard S. Davis Clean Water Act Attorney Beveridge & Diamond Washington, DC
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Richard uses his 40 years of Clean Water Act experience to find cost-effective solutions for the complex regulatory challenges that his business clients face.

Since joining Beveridge & Diamond in 1981, Richard has practiced almost exclusively under the federal Clean Water Act and its state analogues, chairing or co-chairing the firm’s Clean Water Practice Group for more than 15 years, and helping direct one of the nation’s most innovative and dynamic clean water practices.

Richard has represented individual industrial dischargers and industry groups, as well as local...

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Eric L. Klein Environmental Litigation Attorney Beveridge & Diamond Boston, MA
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Eric makes complex subjects simpler.

He is an environmental litigator in the Boston office of Beveridge & Diamond, with a national practice representing major companies and municipalities in a wide variety of matters including environmental and mass torts, class actions, and federal citizen suits under environmental statutes including the Clean Water Act, the Safe Drinking Water Act, and the Clean Air Act. He has handled cases in state and federal courts throughout the United States, litigating complex civil and commercial matters before juries, trial and appellate courts, arbitrators and administrative tribunals. He specializes in challenging and defending technical experts in complex environmental litigation.

Eric’s litigation practice encompasses a broad range of environmental matters, including the prosecution and defense of groundwater and site contamination cases, PCB cost allocations, environmental white-collar defense and internal investigations, and data compensation under FIFRA, the federal pesticide statute. In particular, Eric has defended some of the most significant environmental citizen suits filed in recent times, including the successful resolution of a $4 trillion Clean Water Act citizen suit filed against a major U.S. transportation company.

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Eric’s core professional belief spans his careers in education and law: success lies in making complex subjects simpler.

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Timothy M. Sullivan Environmental & Natural Resources Litigation Attorney Beveridge & Diamond Baltimore, MD
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Tim Sullivan’s practice focuses primarily on environmental and natural resources litigation before federal and state courts and adjudicatory bodies.

He represents and advises public and private clients in regulatory, litigation, and other matters involving many federal and state environmental and natural resources laws, with a particular emphasis on Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), the Endangered Species Act (ESA), and the Clean Water Act. Tim is the Managing Principal of Beveridge & Diamond's Baltimore office. 

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