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(KSL News) Investigators have found more contaminated soil in housing areas at Hill Air Force Base, and administrators have started on a plan to cleanup the chemical PCB.
At high concentrations, polychlorinated biphenyls can cause health problems, including cancer, if people are exposed for a long time.
Hill officials say they will start cleaning six areas this summer, and take the contaminated soil to a disposal facility.
People who live on the base can give their input before the cleanup.