Are buried utilities affected?
Generally no. If the utility is a plastic pipe and located in the heated depth interval it will need to be relocated or replaced with a temperature-resistant material such as steel. Most of the sites where ERH has been applied have buried utilities near or in the heated region. It is the rare occasion when relocation of buried utilities is required. Otherwise, there is no effect from ERH on buried utilities. By far the most common temperature-sensitive component found in our treatment regions is PVC monitoring wells.
