Superfund Information Systems: Site Profile

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About the Superfund Redevelopment Initiative

This nationally coordinated effort provides EPA and its partners with a process to return Superfund sites to productive use. Learn more at Superfund Redevelopment Initiative.

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Redevelopment at the Site

Redevelopment at the Ryeland Road Arsenic Site

The Ryeland Road Arsenic Superfund site consists of five parcels of land covering 7 acres, and a forested wetland in a former nursery property, in Heidelberg Township, Pennsylvania. Until 1942, Standard Chemical Works Corporation (SCWC) and Allegheny Chemical Corporation (ACC) used four of the parcels to manufacture pesticides, fungicides, paints and varnishes, and for waste disposal. In the late 1970s, residential development began on these four parcels of land. SCWC and ACC used the fifth parcel primarily for waste disposal. Site investigations found high levels of arsenic and lead in soil at the site. EPA placed the site on the Superfund program’s National Priorities List (NPL) in 2004. In 2006, cleanup activities began, including permanently relocating residents of three on-site homes, demolishing of vacated homes, and removing and disposing of contaminated soil off site. Cleanup also involved removing contaminated soil from adjacent residential properties. EPA conducted innovative cleanup and restoration activities on the forested and wetland-covered portion of the site. In 2009, EPA vacuum dredged the spring-fed creek at the site to minimize the impact on the stream, woods and wetlands. EPA continues to plant ferns that absorb arsenic to help reduce arsenic concentrations in soil and wetland sediment. Groundwater studies continue at the site. Residential land use continues on a portion of the site, and the remainder of the site transferred to Heidelberg Township. Heidelberg Township constructed a pole building, which a local youth sports league leases for equipment storage.

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Economic Activity at the Site

As of December 2018, EPA did not have economic data related to on-site businesses, or economic data were not applicable due to site use. View information about redevelopment economics at Superfund sites.

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Activity and Use Limitations

At this site, activity and use limitations that EPA calls institutional controls are in place. Institutional controls play an important role in site remedies because they reduce exposure to contamination by limiting land or resource use. They also guide human behavior. For instance, zoning restrictions prevent land uses – such as residential uses – that are not consistent with the level of cleanup. For more background, see Institutional Controls.

Institutional controls are in placed to restrict groundwater and land use. Additional information about the institutional controls are available in the 2016 Five-Year Review (PDF) (pages 22-23).

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