Yards, workshops, and fueling areas carry a history of fuels and lubricating oils. Older practices, such as preserving railroad ties with creosote and using herbicides for vegetation control, may also call for attention in specific stretches.

Investigation prioritizes facilities and points with the greatest potential for impact, characterizes soil and groundwater, and delineates areas that require intervention. Where needed, remediation is integrated with monitoring to track how treated areas evolve.
Hydrocarbons can often be addressed with conventional systems or chemical oxidation, while more persistent compounds associated with creosote require detailed characterization before a technology is selected.
Identify which yards and stretches truly need attention and direct resources based on evidence.
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