The Pennsylvania Department of Environmental Protection reached agreements this month with two leading shale producers in the state to resolve erosion and air quality violations.

The agency said Tuesday an affiliate of Range Resources Corp. has agreed to pay $198,920 to resolve violations of the state’s Air Pollution Control Act for transgressions at the Costanzo 1H and 2H and Cross Creek County Park 6H and 8H well pads in Washington County.

The pads contain storage tanks and associated equipment that surpassed emissions thresholds in 2013, 2014 and 2015 in a way that would have required special permitting, DEP said. Range installed air cleaning devices to reduce volatile organic compounds (VOC) without applying for DEP authorization as required.

The agency said, however, the air cleaning devices reduced the VOC emissions to levels below the special permitting thresholds. Range is required to pay emissions fees for the years when VOCs exceeded the threshold in addition to a civil penalty. The funds are to go toward the Pennsylvania Clean Air Fund and communities in Washington County where the violations occurred.

DEP also reached an agreement with an affiliate of CNX Resources Corp. to address violations of erosion and sediment control authorizations at well sites in Washington and Greene counties.

The agency said CNX failed to implement measures to prevent offsite sediment discharges, including failing to stabilize sites and install post-construction stormwater control. The violations have since been corrected, DEP said. Instead of a civil penalty, the agency accepted CNX’s proposal for streambank stabilization work and the installation of fish habitat structures in Washington County at a cost of at least $180,000.