Avco Lycoming (Williamsport Division)
NPL SiteWilliamsport, PA
According to the EPA Superfund Enterprise Management System, Avco Lycoming (Williamsport Division) in Williamsport, PA is listed with NPL status NPL Site. Its Hazard Ranking System (HRS) score is 42.24. The public extract catalogs 7 contaminant records for this site. EPA marks construction of the cleanup remedy as complete. 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 Pennsylvania environmental agency.
What is the cleanup status of this Superfund site?
Contaminants
| Contaminant | Media |
|---|---|
| 1,2-DICHLOROETHENE (CIS AND TRANS MIXTURE) | Groundwater |
| BARIUM | Groundwater |
| CADMIUM | Groundwater |
| CHLOROETHENE (VINYL CHLORIDE) | Groundwater |
| CHROMIUM(VI) | Groundwater |
| MANGANESE | Groundwater |
| TRICHLOROETHENE | Groundwater |
Location
Other Superfund Sites in Pennsylvania
| Site Name | Status | HRS Score |
|---|---|---|
| A.I.W. Frank/Mid-County Mustang | NPL Site | 42.40 |
| Aladdin Plating | Deleted NPL Site | 35.57 |
| Ambler Asbestos Piles | Deleted NPL Site | 34.47 |
| AMP, Inc. (Glen Rock Facility) | Deleted NPL Site | 39.03 |
| Austin Avenue Radiation Site | Deleted NPL Site | 0.00 |
| Baghurst Drive | NPL Site | 50.00 |
| Bally Ground Water Contamination | NPL Site | 37.93 |
| Bell Landfill | NPL Site | 34.79 |
| Bendix Flight Systems Division | NPL Site | 33.74 |
| Berkley Products Co. Dump | Deleted NPL Site | 30.00 |
How does this site's HRS score compare in Pennsylvania?
Of the 127 Pennsylvania Superfund sites with a scored Hazard Ranking System (HRS) evaluation, Avco Lycoming (Williamsport Division) ranks #55 by score (42.24).
Either side of it: Commodore Semiconductor Group (42.35), Novak Sanitary Landfill (42.31), Ohio River Park (42.24), Henderson Road (41.69)
Frequently Asked Questions
What is the Avco Lycoming (Williamsport Division) Superfund site? ▼
What does NPL listing mean for Avco Lycoming (Williamsport Division)? ▼
What is the HRS score for Avco Lycoming (Williamsport Division)? ▼
What contaminants are at the Avco Lycoming (Williamsport Division) site? ▼
What is the cleanup status of Avco Lycoming (Williamsport Division)? ▼
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.