The PIOGA Press
(by Lisa Bruderly and Gary Steinbauer)
On April 23, the U.S. Environ – mental Protection Agency published a notice of availability of an interpretive statement concluding that releases of pollutants to ground – water should be categorically excluded from Clean Water Act (CWA) permitting requirements. 84 Fed. Reg. 16810. The notice opens a 45-day public comment period, ending on June 7. EPA is requesting comments on its analysis and rationale and is also soliciting input on additional actions that may be needed to provide further clarity and regulatory certainty on whether the National Pollutant Discharge Elimination System (NPDES) permit program regulates releases of pollutants to groundwater.
With the issuance of the interpretive statement, EPA has reinjected itself into the ongoing debate, federal circuit court split and pending U.S. Supreme Court case over whether the CWA’s NPDES permit program regulates point source discharges that travel through groundwater before reaching a jurisdictional surface water. The interpretive statement and the related, ongoing judicial decisions are of interest to the natural gas industry, among other industries, given the potential implications related to leaks/spills from pipelines, impoundments and other structures.
Interpretive statement content and reasoning
EPA describes the interpretive statement as the agency’s “most comprehensive analysis” of the CWA’s text, structure and legislative history in relation to whether the NPDES permit program regulates point source releases to groundwater. Most of the 63-page interpretive statement discusses EPA’s legal analysis of the statutory provisions that implement and enforce the NPDES permit program, the forward-looking, information-gathering statutory provisions that explicitly reference groundwater, and the relevant legislative history. Based on its analysis of this information, EPA concludes that Congress deliberately chose to exclude discharges of pollutants to groundwater from the NPDES permit program, even when those pollutants are conveyed to a jurisdictional surface water via groundwater. …