G-Logics was retained by a commercial property
owner in 2000 to review site data describing
contamination at a former dry cleaning facility in
Parkland, Washington. Detectable concentrations
of tetrachloroethene (PCE) remained in the
shallow soil and groundwater in spite of several
years of active remediation efforts. The
Washington State Department of Ecology (Ecology) had
requested that additional remedial measures be
performed to further reduce the PCE
concentrations. However, these requested
remedial actions represented a great cost to the
client without a thorough understanding of the
actual site risks, the actual need for these
additional actions, or their effectiveness.

G-Logics reviewed the site information and
identified several possible administrative solutions
to the remaining shallow PCE concentrations that

would be satisfactory to Ecology, without significant additional costs for our client. These included institutional controls, land-use restrictions, capping, significant and disproportionate analyses, and a review of site risks.

Ecology has agreed to allow groundwater monitoring to be used at this site until results of deeper aquifer explorations and remedial studies are completed. Ecology's acceptance of
G-logics' risk-based cleanup approach has allowed this client to save approximately $50,000 in unnecessary remedial efforts.