A former manufacturing facility in Western Michigan was redeveloped into an active golf course. The USEPA took over responsibility for cleanup of the chlorinated solvents that remained. Regenesis Remediation Services (RRS) was contracted by a leading consulting firm to implement a remediation design to address the chlorinated VOC plume with concentrations as high as 3,000 ppb. PersulfOx was selected over other persulfate activation methods such as hydrogen peroxide or alkaline activation because the built-in catalyst minimized hazardous materials handling allowing for a safer and easier application.Despite persistent freezing temperatures, RRS was able to finish this project ahead of the projected schedule.