Dry Cleaner Site (Solvents/Bio) - Case Study

Aestus was asked to assist with a dry cleaners site which was operational from 1945 to 1977. The state led cleanup involved a soil excavation and series of bioremediation injectates. The existing monitoring well network showed PCE concentrations above regulatory standards following the remediation attempt. Aestus used our non-invasive ultra-high resolution subsurface scanning method to image the site and update the CSM

Aestus integrated historical and targeted confirmation drilling data onto our GeoTrax Survey™ 2D subsurface images as well as our 3D visualization model.Drilling and sampling data were used to determine how varying electrical resistivity levels correlated to contaminants, geology, and bioactivity

Purple zones show where injection work effectively stimulated biodegradation. Updated CSM shows undegraded/untreated PCE in orange zones requiring additional remediation.