Decades-long groundwater solvent cleanup completed at Building 5

A liquid solvent that is able to dissolve other substances can run, but it can’t hide from investigators, even 20 feet below ground.  A toxic cleaning solvent called trichloroethane (TCE) was used to degrease metal parts in industrial operations at the Navy’s aircraft repair facility.  When this solvent leaks into soil and groundwater, as it did in Building 5 at Alameda Point, the odorless vapors can cause cancer and other ill health effects to occupants of buildings above as it evaporates.

The actual process of cleaning up the contamination, while time-consuming, is not the real problem.  The real challenge is finding it, measuring it, and calculating what the safe cleanup level is for future use of the building, in this case commercial. Continue reading “Decades-long groundwater solvent cleanup completed at Building 5”