Sewer clearing safety tips for professionals

When a customer calls

  • Always call PSE at 1-888-225-5773 45-60 minutes before arriving on site. We will promptly meet you at your work site to locate and mark our natural gas pipeline free of charge.
  • Use an in-line video inspection device to determine the source of the obstruction, if possible.
  • Never use a drain rooter to clear a line until the obstruction has been identified.
  • If possible, clear the sewer line from a cleanout located outside the structure.
  • If you find a cross bore, call PSE at 1-888-225-5773.

Suspect a gas leak?

Leave the area immediately and call PSE or 911. Do not use phones near the leak.


If you have questions about PSE's cross bore safety program, please email

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