Key Environmental, Inc.
Aerial Map
Natural Gas Compressor Station - PA Act 2 Program
Investigation, Characterization, Assessment
Aerial Map
Project Activities
  • Photogrammetric Investigation
  • Subsurface Investigation
  • Fate and Transport Modeling
The site is an active natural gas compressor station where petroleum liquid and water were historically removed from the natural gas stream as a condensate or “drip”. The condensate was managed from 1950 to 1969 by igniting the drip in a burn pit, to destroy the petroleum product portions of the drip. A nearby former cooling pond, which was used as a source of water to cool the compressed natural gas, was closed in 1986. The pond footprint subsequently received backfill from various off-site pipeline excavation activities, and a natural spring and stormwater continued to pass through the area, en route to a nearby stream. An investigation was required to determine the possible impacts of these former site features on groundwater and / or the adjacent stream. Because the location of the burn pit was unknown, historical digital aerial photographic images were consulted as the low cost, first step in an attempt to locate the pit. Review of the photographs provided a suspected location of the former burn pit. Subsequent field investigative activities with direct-push drilling equipment were used to confirm the suspected location of the former burn pit. Upon location of the former burn pit, KEY evaluated the potential impacts to the nearby stream in accordance with Pennsylvania’s Land Recycling Program (Act 2) protocols. A two-phase field investigation was conducted, including the collection and analysis of subsurface soil, groundwater and surface water samples. The results of the investigation indicated that no impacts from the site to the stream were occurring and no further action was required.
The location of the former burn pit was successfully identified.
Acquisition and computer enhancement of remotely sensed data resulted in a cost-effective and focused subsurface investigation, thereby minimizing drilling.