Environmental Investigations in Dry Cleaning Operations
Contaminant Source Areas - Where to Sample IV
(The information in this newsletter has been gleaned from an EPA sponsored site http://www.drycleancoalition.org and enhanced with images.)
This info-letter is on drycleaning operations, their historical impact on the environment and hurdles they may pose in today’s real estate transactions. Search here for more.
Sampling should also be conducted near floor drains.
solvent wastes are discharged down floor drains plumbed with PVC
piping, PCE can soften and even dissolve the PVC. The elbow joints of
drain lines are particularly susceptible to dissolution.
Floor drains are commonly located in the boiler room at drycleaning
facilities. Since PCE vapors are denser than air, the vapors tend to
settle to the floor, particularly after the drycleaning plant has been
shut down for the day. These vapors will migrate to low spots along the
facility floor and floor drains.
Floor expansion joints and cracks in the floor slab are prime entry point for these vapors.