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Call Before Clearing Your Sewer Line

Know what’s inside — a clogged sewer could be a bigger problem.

A blocked sewer line may be the result of another utility line (gas, electric, and telecommunications) accidentally cross boring through a sewer line. A cross bore is an unsafe intersection of two different utility lines. Do not try to clear a blockage, as it could result in a serious accident.

If you cannot see the cause of the sewer blockage, call DigSafe® at 811 and request an “emergency locate” to get utility lines in the area marked. If utility markings cross the known path of a sewer line, it may be a cross bore blockage. If so, DO NOT attempt to clear the blockage. Contact Unitil at 1-888-301-7700 for assistance.


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