PA DEP Compliance Report Highlights Major Spills, Pipeline Ruptures, and Widespread Well Abandonment

The Pennsylvania Department of Environmental Protection (DEP) has released its weekly compliance dashboard for late June 2026, detailing significant environmental violations across both conventional and shale gas operations. Key incidents include a 42,000-gallon freshwater pipeline rupture by Coterra Energy and a large contaminated groundwater release at a conventional well site in Warren County. These findings underscore ongoing regulatory challenges regarding infrastructure integrity, wastewater management, and the mounting backlog of abandoned wells in the Appalachian Basin.

Significant water-related incidents dominated the DEP’s recent inspections, most notably a major failure of Coterra Energy’s Busik Freshwater Pipeline in Dimock Township. The aboveground lay-flat pipe reportedly overpressurized and ruptured at a coupling point on June 9, discharging approximately 42,000 gallons of water into a nearby stream and causing substantial erosion. This follows a similar rupture in the same section just weeks prior. Meanwhile, in Warren County, a routine inspection at the John E. McCool Lot 740 15 conventional well site revealed a large release of production fluid and crude oil from storage tanks, which saturated the ground within secondary containment and flowed beyond it. Additionally, Seneca Resources’ Taft shale gas well pad in Tioga County continues to show elevated levels of chlorides, strontium, and heavy metals in water samples, indicating persistent wastewater releases.

The report highlights a systemic issue with well abandonment, with the DEP issuing or continuing 310 notices of violation (NOVs) for conventional well abandonment so far in 2026. Recent inspections identified multiple abandoned wells owned by EQT ARO LLC, Lazy Oil, and Lakeport Realty that have not been plugged or properly reported. Lazy Oil, in particular, was cited for six abandoned wells in Marion Township, adding to a history of dozens of similar violations in Butler and Venango counties. Shale operations are not exempt; the Fetchen Mon197 H16 well was also cited for abandonment. Regulatory friction was further evidenced at the Cowden 16 shale gas well pad, where DEP inspectors were locked out by a gate, preventing them from verifying the cleanup of spills that have remained unaddressed since January 2025.

Long-term infrastructure failures and unusual operational hazards were also documented. At the Jack Wyo shale gas well pad, the DEP confirmed that casing and cement failures first identified in 2015 remain unresolved, with the operator continuing to vent leaking gas from well annuli as a permanent safe measure. In a more idiosyncratic incident, a conventional well in Burnside Township suffered a 126-gallon brine release after a porcupine chewed through the bottom of a storage tank, leading to new violations. Furthermore, Keystone Clearwater Solutions faced continued citations for erosion and sedimentation violations during the decommissioning of the Clark to Westholme pipeline. These collective incidents reflect the diverse range of environmental and maintenance risks currently facing Pennsylvania’s oil and gas sector.