The inspector field screened and took samples from puddles of water on the pad, at a water outfall from the pad, from liquid flowing into the southeast corner of the sediment basin and from liquid flowing from the sediment basin, past the last filter sock and off the permit area for the pad.
"DEP recommends that Seneca continues to monitor the conditions on the pad surface and the sediment basin and remove elevated conductance fluids and soils as discovered. Prevent elevated conductance fluids from leaving the facility and causing pollution to the waters of the Commonwealth."
Violations originally issued for wastewater releases on October 23, 2024 were continued.
These conditions have now continued for 545 days without abatement.
DEP did not request a written follow-up from Seneca in the inspection report.
DEP found similar conditions-- spills, crews trying to clean up the pad while drilling new shale gas wells-- starting October 23, 2024, then on July 11, 2025, August 21, 2025, October 2, 2025, October 31, 2025, December 23, 2025 and January 21, 2026.
Criminal Charges
On October 31, 2025, Attorney General Dave Sunday announced criminal charges against Seneca Resources, LLC, following multiple violations of Pennsylvania’s environmental protection laws in several counties, as recommended by the 48th and 51st Statewide Investigating Grand Juries.
Three separate criminal complaints were filed regarding the natural gas company’s violations related to improper waste management practices and policies.
Prominent in the Attorney General’s announcement of the charges was the fact that DEP repeatedly warned Seneca that their practices were not in line with Pennsylvania law, but those warnings were ignored or disputed. Read more here.
In all, Seneca is charged with 64 counts of violations of the Solid Waste Management Act and 36 counts of violations of the Clean Streams Law in Cameron, Clearfield, Elk, Jefferson, Lycoming, McKean, Potter, Tioga Counties. Read more here.
Report Violations
To report oil and gas violations or any environmental emergency or complaint, visit DEP’s Environmental Complaint webpage.
Text photos and the location of abandoned wells to 717-788-8990.
Check These Resources
Visit DEP’s Compliance Reporting Database and Inspection Reports Viewer webpages to search their compliance records by date and owner.
Sign up for DEP’s eNOTICE service which sends you information on oil and gas and other permits submitted to DEP for review in your community.
Use DEP’s Oil and Gas Mapping Tool to find if there are oil and gas wells near or on your property and to find wells using latitude and longitude on well inspection reports.
(Photos: Row 1-- Pool of liquid above center outfall; sediment basin with standing water; Row 2-- Field testing liquid in the pond; Sample collected at overflow outfall; Field testing liquid flowing off the LOD permit area.)
[Note: If you believe your company was listed in error, contact DEP’s Oil and Gas Program.]
[Note: These may not be all the NOVs issued to oil and gas companies during this time period. Additional inspection reports may be added to DEP’s Oil and Gas Compliance Database.]
Resource Links - Seneca Resources:
-- Attorney General Sunday: Criminal Charges Filed Against Seneca Resources For 64 Counts Of Illegal Dumping Of Shale Gas Waste In Cameron, Clearfield, Elk, Jefferson, Lycoming, McKean, Potter, Tioga Counties [PaEN]
-- No One Warned A Cameron County Family Their Water Well Was Contaminated By A Seneca Resources Shale Gas Wastewater Pipeline Rupture [PaEN]
-- DEP: Spills, Releases Continue At Seneca Resources Taft Shale Gas Well Pad In Middlebury Twp., Tioga County For 373 Days And Counting [PaEN]
-- DEP Day 239: Seneca Resources Wastewater Cleanup, Monitoring Efforts Continue At Vandergrift Shale Gas Well Pad In Charleston Twp., Tioga County [PaEN]
[Posted: April 24, 2026] PA Environment Digest
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