Provost & Pritchard has been responsible for a PCE (dry cleaning solvent) soil and groundwater cleanup program involving two active and five inactive dry cleaning sites in downtown Merced. The program has focused on practical solutions to a large scale soil and groundwater impact from many historic and operating dry cleaners. The project was under the authority of the federal courts and involved representing the city during federal mediation hearing which required the ability to communicate technical approaches to non-technical stake holders. This project involves a complex hydrostatigraphical setting, and includes a network of over 100 groundwater monitoring wells and over 25 soil vapor extraction and sparge wells from the seven sites. A comprehensive groundwater report of the data collected from the seven sites is produce quarterly. Our reporting requires intensive QA/QC of all data gathered.