Editing Pittsfield, Massachusetts (section)

====Groundwater and long-term monitoring====
In the years since the settlement was reached, the EPA, state agencies, the City and GE accomplished one of the largest and most complex cleanups in the country. Cleanup work on the first previously PCB-laden half mile of the Housatonic River, adjacent to the GE facility, was completed in September 2002.<ref name=epasitehistory /> $90 million was spent cleaning up the {{convert|1.5|mi|adj=on}} reach between Lyman Street and Fred Garner Park, which was completed in June 2007. Biological and sediment samples showed reductions of approximately 99% of PCB concentrations compared to conditions before remediation.<ref name=epasitehistory /> GE removed contaminated soil and restored 27 residential properties abutting the river. As of 2006 more than {{convert|115000|cuyd|m3}} of PCB-contaminated sediment, bank, and floodplain soil have been removed from the river and residential property.<ref name=epavarney>{{cite web |url=http://www.epa.gov/ne/ra/column/archive/2006/pittsfield_cleanup_20060303.html |title=Step By Step, Clean Up Efforts Make Pittsfield Healthier |last=Varney |first=Robert W. |date=March 3, 2006 |publisher=United States Environmental Protection Agency |access-date=February 6, 2009}}</ref> As of 2019 GE has completed remediation and restoration of the 10 manufacturing plant areas within the city, and is conducting inspection, monitoring and maintenance activities.<ref>{{cite web |title=GE Plant Area of the GE-Pittsfield/Housatonic River Site |url=https://www.epa.gov/ge-housatonic/ge-plant-area-ge-pittsfieldhousatonic-river-site |date=August 15, 2019 |publisher=EPA}}</ref>