Background/Objectives. An aerospace business in the Midwest with operations dating back to the 1930s knew they had a chlorinated VOC (CVOC) source beneath their facility that would require remediation. However, its exact location was unknown as they had no record of releases and had discontinued CVOC use some years ago. It was feared that the source lie beneath a business-critical operational area that would require the facility to close. Chlorinated VOC sources are commonly located under large commercial/industrial buildings resulting from “back door” releases that typically pre-date the establishment of strict environmental regulations. Many times, these back door areas lie beneath the current, expanded footprint of the facility. Finding someone having firsthand knowledge of the pre-regulatory disposal practices and areas is becoming harder as the population ages.
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