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PCB and Gas Pipelines

Contact Information

Public Affairs Specialist
Rafael P. Gonzalez (gonzalez.rafaelp@epa.gov)
312-886-0269 or 800-621-8431, ext. 60269

PCB-Technical Information
Tony Martig(marting.anton@epa.gov)

Tony Restainorestaino.anthony@epa.gov


Nicor first learned of the problem and company officials informed EPA in June that contaminated liquid in its natural gas lines affected the Park Ridge homes. Nicor did work inside two homes and worked on the gas meters at the other two homes.

In response to requests for information from other gas companies serving Illinois, EPA learned that a school in Alton and at least 10 homes in East St. Louis were contaminated with PCB. The school and homes are served by Ameren. No PCBs were detected in the Alton school at a follow up inspection and no homes were found with detectable levels of PCBs in East St. Louis. EPA is working with Ameren for expanded inspections using a protocol similar to that used for the Nicor inspections.

Liquid in gas pipelines is rare. It can occur when gas passes through regulator stations in the pipeline, and some of the heavier hydrocarbon gases condense and become liquid, often causing a drop in gas pressure. Gas companies install special equipment in their systems to remove as much liquid as possible.

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