Sealand Limited
Deleted NPL SiteMount Pleasant, DE
According to the EPA Superfund Enterprise Management System, Sealand Limited in Mount Pleasant, DE is listed with NPL status Deleted NPL Site. Its Hazard Ranking System (HRS) score is 33.10. Specific contaminant records are not populated in the public extract for this site. EPA marks construction of the cleanup remedy as complete. The site has been deleted from the NPL in the EPA record. NPL listing is a cleanup-authority designation, not a measured health-risk score.
Superfund National Priorities List inclusion (status and HRS score shown above) is the EPA's formal designation that a contaminated site qualifies for long-term federal cleanup authority under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). A federal-facility classification means the site is owned or operated by a federal agency, which routes cleanup responsibility differently than a privately owned site.
"Construction Complete" (status shown above) is an EPA milestone marking that the physical remedy work is finished, not that the site has exited EPA oversight; long-term monitoring can continue afterward. Deletion from the NPL is a separate, later step the EPA takes only once it determines every planned response action is finished.
NPL listing is a cleanup-authority designation in the EPA record, not a quantitative health-risk score. HRS scores of 28.50 or above qualify a site for the NPL under the EPA screening model (toxicity, pathways, waste quantity, and affected population factors). For current site conditions and official community notices, see the EPA Regional Superfund profile and the Delaware environmental agency.
What is the cleanup status of this Superfund site?
Contaminants
Contaminant data is not available for this site. The EPA's contaminant records for Superfund sites are maintained in a separate database that may not include all sites.
Location
Other Superfund Sites in Delaware
| Site Name | Status | HRS Score |
|---|---|---|
| Army Creek Landfill | NPL Site | 69.92 |
| Blades Groundwater | NPL Site | 50.00 |
| Chem-Solv, Inc. | Deleted NPL Site | 37.93 |
| Coker's Sanitation Service Landfills | Deleted NPL Site | 52.15 |
| Delaware City PVC Plant | NPL Site | 30.55 |
| Delaware Sand & Gravel Landfill | NPL Site | 46.60 |
| Dover Air Force Base | NPL Site | 35.89 |
| Dover Gas Light Co. | NPL Site | 35.57 |
| E.I. du Pont de Nemours & Co., Inc. (Newport Pigment Plant Landfill) | NPL Site | 51.91 |
| East Basin Road Groundwater | NPL Site | 50.00 |
How does this site's HRS score compare in Delaware?
Of the 26 Delaware Superfund sites with a scored Hazard Ranking System (HRS) evaluation, Sealand Limited ranks #19 by score (33.10).
Either side of it: Tyler Refrigeration Pit (33.94), Koppers Co., Inc. (Newport Plant) (33.56), Halby Chemical Co. (30.90), Harvey & Knott Drum, Inc. (30.77)
Frequently Asked Questions
What is the Sealand Limited Superfund site? ▼
What does NPL listing mean for Sealand Limited? ▼
What is the HRS score for Sealand Limited? ▼
What contaminants are at the Sealand Limited site? ▼
What is the cleanup status of Sealand Limited? ▼
NPL listing is a cleanup-authority designation in the EPA record, not a quantitative health-risk score. See Superfund Sites Explained for how the National Priorities List, Hazard Ranking System, and cleanup phases work.
Read our methodology - how this data is sourced, computed, and verified.