Rock Hill Chemical Co

⚠ Superfund · Ready for anticipated reuse

The most recent Five Year Review was published by EPA HQs in 2021. The site's remedy currently protects human health and the environment because highly contaminated soils above the cleanup level have been excavated and removed, groundwater extraction and discharge treatements continue to effectively reduce contaminant concentrations in groundwater and ins...

Location

CityRock Hill
CountyYork County
StateSouth Carolina
Coordinates34.96610, -80.99850

Contaminants of concern

Contaminated media

Cleanup timeline

  1. Initial Assessment Completed — 05/14/1985
  2. Proposed to the National Priorities List — 06/24/1988
  3. Finalized on the National Priorities List — 02/21/1990
  4. Remedial Investigation Started — 09/25/1991
  5. Final Remedy Selected — 06/27/1994
  6. Final Remedial Action Started — 09/19/1996
  7. Construction Completed — 12/31/1996
  8. Deleted from National Priorities List — Not Yet Achieved
  9. Most Recent Five-Year Review — 09/14/2021
  10. Achieved Sitewide Ready for Anticipated Reuse — 12/18/2024

EPA references

Other Superfund sites in York County

EPA-regulated facilities nearby

Understanding this Superfund site

Rock Hill Chemical Co is a federal Superfund site in South Carolina. The Superfund program, created by Congress in 1980, addresses sites where hazardous substances have been released or threaten release into the environment. EPA scores potential sites using the Hazard Ranking System; those that score high enough are placed on the National Priorities List.

Current status: Ready for anticipated reuse. EPA considers this site ready for anticipated reuse, meaning cleanup has progressed enough for certain land uses. This does not necessarily mean all contamination has been removed — institutional controls like deed restrictions may limit how the land can be used.

EPA has identified 4 contaminants of concern at this site, including chloroethene (vinyl chloride), cis-1,2-dichloroethene, manganese. Contamination has been detected in groundwater.

If you live near this site and have health concerns, your state health department can provide site-specific guidance. EPA maintains a community involvement program for most NPL sites, and site documents — including the Record of Decision, five-year reviews, and public health assessments — are typically available through EPA's Superfund site profile.