Survey of PCP and Other Chemicals in Utility Poles and Soil

Under the research program for the Electric Power Research Institute (EPRI), GEI studied the distribution of PCP and total petroleum hydrocarbons (TPH) around in-service utility poles. This multi-year effort was designed to provide EPRI and its members with an empirically structured, statistical database on the concentrations of PCP and TPH in soils around both transmission and distribution poles.

An intensive field sampling effort was completed covering most states and soil types across the United States. A radial sampling grid with three depth intervals, which typically included 48 sample points, was used at up to 180 wood pole sites.

GEI worked with other EPRI contractors to scout sites, conduct the sampling, and perform the analyses. EPRI was provided with chemical and physical site-specific data for each pole under GEI’s direction. Attenuation and biodegradation tests (40CFR 796.2750 and 40CFR 796.3400, respectively) were conducted by the Utah Water Research Laboratory using soil samples from the vicinity of each pole.

Results of the program are reported through EPRI journals and technical reports. As EPRI’s prime contractor for this project, GEI is knowledgeable about existing and proposed regulations for PCP and the general nature and extent of PCP in soils surrounding utility poles.