Congressional District # 07
NEW CARLISLE LANDFILLEPA ID# OHN000509238
Last Updated: May, 2015
The New Carlisle Landfill (the Site), located at 715 North Dayton-Lakeview Road, is approximately 1.5 miles south of the City of New Carlisle in Clark County, Ohio. The population of New Carlisle in 2007 was approximately 5,577. The Site is bordered immediately on the west, northwest and north by the Scarff's Nursery & Landscape (the Nursery) property; on the south by a parcel known as the Gastineau property, reported to be swampy and vacant; and on the east by North Dayton-Lakeview Road. The surrounding area of the Site is generally rural, with a few nearby residences, and an additional nursery, Meadow View Growers, northeast of the site.
From the mid-1950s until the early 1970s, the site served as a general refuse and solid waste landfill. During its operation, it received industrial, commercial and residential waste. The landfill was officially closed in 1977, after several years of inactivity, and has remained unused and udeveloped since closure. The landfill occupies approximately 21.7 acres. The total depth of waste at the landfill is reported to be 15 feet. The landfill is now covered with two to four feet of clay with a vegetative cover, but the cover was not designed with a protective liner in the manner of modern landfills.
This site is being addressed through federal action, with state support.
Threats and Contaminants
Groundwater at the Site is contaminated with VOCs. Trichloroethene (TCE), tetrachloroethene (PCE) and vinyl chloride have been detected beneath the landfill and in a plume migrating southward from the landfill. The vinyl chloride groundwater contamination could potentially migrate and affect approximately 15 residential wells within one-half mile radius of the landfill. All wellls along the migration path from the landfill, to a distance of approximately 3,000 feet south, have been sampled during the Site Investigation and Expanded Site Investigation. The landfill currently poses no public health hazard to workers and residents at the Nursery property. All immediate threats have been addressed. The remedial investigation to fully characterize the landfill cover and groundwater plume are ongoing.
Since 1993, Ohio Environmental Protection Agency (Ohio EPA) has been sampling a nearby public well which serves the Nursery. In 1997, Ohio EPA data indicated that water from two public wells and two residential wells at the Nursery contained vinyl chloride above the safe drinking water level of 2 parts per billion (ppb). In 2002, Ohio EPA required the Nursery to cease potable use of the contaminated wells and limited future use to irrigation. In 2003, the Nursery installed a new public well and two new residential wells.
In August 2003, Ohio EPA completed a Site Inspection (SI). The purpose of the SI was to identify the source of vinyl chloride contamination affecting the former public well and to evaluate whether the landfill could be added to the National Priorities List. The SI found no contaminants above the safe drinking water standard in any of the residential wells surrounding the landfill and any currently used public wells. However, vinyl chloride was found in the former public well, located on the Nursery property, at above the safe drinking water standard.
In late 2003 and early 2004, Ohio EPA completed an Expanded Site Investigation (ESI) at the Site. The purpose of the ESI was to delineate the source of vinyl chloride contamination affecting public water supply wells at the Nursery. The ESI concluded that the inactive landfill is the source of elevated vinyl chloride in the four former potable wells at the Nursery.
In 2005, the United States Environmental Protection Agency (EPA) completed an emergency cleanup action to provide alternate potable water to the Nursery and the residences with affected private wells. The emergency cleanup consisted of the extension of the water line from the New Carlisle public water system to two homes and a nursery business. Following the installation of the alternate water source, the new public well was pumped for irrigation. Both affected nursery residential wells were disconnected during the emergency cleanup and are no longer used.
EPA placed the site on the Superfund National Priorities List (NPL) in April 2008, because of continued EPA concerns about the potential migration of the vinyl chloride toward residential wells within one-half mile of the landfill. EPA started Remedial Investigation (RI) field work in 2013. The RI field work will include landfill cap assessment, a landfill gas investigation, groundwater sampling, residential and irrigation well sampling, and a human health and ecological risk assessment.
ContactsRemedial Project Manager, U.S. EPA
Giang-Van Nguyen (email@example.com)
Community Involvement Coordinator, U.S. EPA