Environmental Investigations in Dry Cleaning Operations
Contaminant Source Areas – Where to Sample II
Service Door
Historically, solvents have been delivered to the facility and wastes have been stored and discharged outside the service door of the drycleaning facility.
If the drycleaning solvent was delivered to the facility by tank truck, find out where the solvent delivery truck parks or parked during deliveries.
If solvents were delivered by tank truck there were likely incidental spills or discharges associated with the solvent transfer. If the delivery area is paved with asphalt, sample in areas where the asphalt is deteriorated or dissolved.
The area outside the service door has also been a favorite discharge area for contact water and a storage area for spent cartridge filters. The area outside the service door on the side to which the door opens is a prime sampling area. If there are several doors at the facility, the door located nearest the dry cleaning machine/distillation unit was the most likely waste disposal point.
Stressed vegetation or unpaved areas with no vegetation may be indicators of waste disposal areas.
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