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

Several businesses, including Nyacol Nano Technologies, Inc. and Worcester Air Conditioning continue to operate at the former Site.

A solar energy proposal was submitted to MassDEP and EPA in May 2018. Array 1 was proposed for the engineered cap of the Nyanza landfill, and Array 2 was proposed for an off-Site area located immediately south of the landfill and diversion trench.  Array 1 on the landfill cap was subject to review and approval by EPA and MassDEP, and certain components of Array 2 (such as utility pole installations) required approval because they overlapped into areas covered under an existing Grant of Environmental Restriction and Easement (GERE).  On November 14, 2018, EPA and MassDEP conditionally ap­proved the request by Ashland Solar LLC to construct and operate the Solar Array 1 Facility on portions of the Nyanza Super­fund Site after extensive technical reviews of the proposed project.  Construction of the solar arrays was initiated in Fall 2019, and completed in December 2019.

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Economic Activity at the Site

As of December 2019, EPA had data on 7 on-site businesses. These businesses employed 43 people and generated an estimated $9,848,403 in annual sales revenue. View additional information about redevelopment economics at Superfund sites.

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Renewable Energy at the Site

The photovoltaic (PV) system on the Nyanza Chemical Waste Dump Superfund Site landfill in Ashland, MA was energized on December 31, 2019.  The PV facility will generate approximately 5.8 mega­watts direct current by two separate solar arrays: Array 1 located on the Nyanza Superfund Site landfill cap, and Array 2 located on an off-Site land parcel directly south of the landfill cap.


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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 required for this site.

This site requires ICs because a decision document, such as a Record of Decision, has documented some level of contamination and/or remedy component at the site that would restrict use of the site. These ICs are required to help ensure the site is used in an appropriate way and that activities at the site do not damage the cleanup components. These ICs will remain in place for as long as the contamination and/or cleanup components stay on site. The site contacts should be consulted if there are questions on the ICs for this site.

The following IC Instruments provide media-specific use restrictions that have been implemented by EPA for protecting human health, the environment and remedial engineering on this site. Instruments are documents used by EPA or other organizations to implement the use restrictions at a site. To know about other media-specific use restrictions that are planned but not implemented at this site, please contact the Regional Office using the Site Contact listed above.

Click here for IC Instruments implemented for this site.

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