Henderson Road

NPL Site
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Upper Merion Township, PA

According to the EPA Superfund Enterprise Management System, Henderson Road in Upper Merion Township, PA is listed with NPL status NPL Site. Its Hazard Ranking System (HRS) score is 41.69. The public extract catalogs 139 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.

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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?

NPL Status
NPL Site
Federal Facility
No
Construction Complete
Yes
HRS Score
41.69
Deleted from NPL
No

Contaminants

Contaminant Media
1,1,1-TRICHLOROETHANE Groundwater
1,1-DICHLOROETHANE Groundwater
1,1-DICHLOROETHENE Groundwater
1,2-DICHLOROETHANE Groundwater
1,2-DICHLOROPROPANE Groundwater
1,3-DICHLOROPROPENE (EZ MIXTURE) Air
1,3-DICHLOROPROPENE (EZ MIXTURE) Debris
1,3-DICHLOROPROPENE (EZ MIXTURE) Groundwater
1,3-DICHLOROPROPENE (EZ MIXTURE) Sediment
1,3-DICHLOROPROPENE (EZ MIXTURE) Soil
1,3-DIMETHYLBENZENE (M-XYLENE) Groundwater
1,4-DICHLOROBENZENE Groundwater
1,4-DIMETHYLBENZENE (P-XYLENE) Groundwater
1,4-DIOXANE Groundwater
2,4-DIMETHYLPHENOL Groundwater
2-METHYLPHENOL (O-CRESOL) Groundwater
4-METHYLPHENOL (P-CRESOL) Groundwater
ALDRIN Air
ALDRIN Debris
ALDRIN Groundwater
ALDRIN Sediment
ALDRIN Soil
BARIUM Air
BARIUM Debris
BARIUM Groundwater
BARIUM Sediment
BARIUM Soil
BENZENE Air
BENZENE Debris
BENZENE Groundwater
BENZENE Sediment
BENZENE Soil
BENZIDINE Air
BENZIDINE Debris
BENZIDINE Sediment
BENZIDINE Soil
BENZOIC ACID Groundwater
BIS(2-CHLOROETHYL)ETHER Air
BIS(2-CHLOROETHYL)ETHER Debris
BIS(2-CHLOROETHYL)ETHER Groundwater
BIS(2-CHLOROETHYL)ETHER Sediment
BIS(2-CHLOROETHYL)ETHER Soil
BIS(2-ETHYLHEXYL)PHTHALATE Groundwater
BROMODICHLOROMETHANE Groundwater
BUTYL BENZYL PHTHALATE Groundwater
CADMIUM Groundwater
CARBON TETRACHLORIDE Groundwater
CHLOROBENZENE Groundwater
CHLOROETHANE Groundwater
CHLOROETHENE (VINYL CHLORIDE) Groundwater
CHLOROFORM Air
CHLOROFORM Debris
CHLOROFORM Groundwater
CHLOROFORM Sediment
CHLOROFORM Soil
CHROMIUM Air
CHROMIUM Debris
CHROMIUM Groundwater
CHROMIUM Leachate
CHROMIUM Sediment
CHROMIUM Soil
CHROMIUM Surface Water
CIS-1,2-DICHLOROETHENE Groundwater
COPPER Groundwater
DIBROMOCHLOROMETHANE Groundwater
DIBUTYL PHTHALATE Groundwater
DICHLOROMETHANE (METHYLENE CHLORIDE) Groundwater
ETHYLBENZENE Air
ETHYLBENZENE Debris
ETHYLBENZENE Groundwater
ETHYLBENZENE Leachate
ETHYLBENZENE Sediment
ETHYLBENZENE Soil
ETHYLBENZENE Surface Water
HEXACHLORO-1,3-BUTADIENE Air
HEXACHLORO-1,3-BUTADIENE Debris
HEXACHLORO-1,3-BUTADIENE Groundwater
HEXACHLORO-1,3-BUTADIENE Sediment
HEXACHLORO-1,3-BUTADIENE Soil
HEXACHLOROBENZENE Air
HEXACHLOROBENZENE Debris
HEXACHLOROBENZENE Groundwater
HEXACHLOROBENZENE Sediment
HEXACHLOROBENZENE Soil
LEAD Air
LEAD Debris
LEAD Groundwater
LEAD Leachate
LEAD Sediment
LEAD Soil
LEAD Surface Water
N,N-DIPHENYLNITROUS AMIDE Groundwater
NAPHTHALENE Groundwater
ORGANICS Leachate
ORGANICS Surface Water
P,P'-DDT Air
P,P'-DDT Debris
P,P'-DDT Groundwater
P,P'-DDT Sediment
P,P'-DDT Soil
PHENOL Groundwater
PHENYLMETHANOL Groundwater
POLYCHLORINATED BIPHENYLS (PCBs) Air
POLYCHLORINATED BIPHENYLS (PCBs) Debris
POLYCHLORINATED BIPHENYLS (PCBs) Groundwater
POLYCHLORINATED BIPHENYLS (PCBs) Sediment
POLYCHLORINATED BIPHENYLS (PCBs) Soil
POLYCYCLIC AROMATIC HYDROCARBONS (PAHS) Air
POLYCYCLIC AROMATIC HYDROCARBONS (PAHS) Debris
POLYCYCLIC AROMATIC HYDROCARBONS (PAHS) Groundwater
POLYCYCLIC AROMATIC HYDROCARBONS (PAHS) Leachate
POLYCYCLIC AROMATIC HYDROCARBONS (PAHS) Sediment
POLYCYCLIC AROMATIC HYDROCARBONS (PAHS) Soil
POLYCYCLIC AROMATIC HYDROCARBONS (PAHS) Surface Water
TETRACHLOROETHENE Air
TETRACHLOROETHENE Debris
TETRACHLOROETHENE Groundwater
TETRACHLOROETHENE Sediment
TETRACHLOROETHENE Soil
TOLUENE Air
TOLUENE Debris
TOLUENE Groundwater
TOLUENE Leachate
TOLUENE Sediment
TOLUENE Soil
TOLUENE Surface Water
TRANS-1,2-DICHLOROETHENE Groundwater
TRICHLOROETHENE Air
TRICHLOROETHENE Debris
TRICHLOROETHENE Groundwater
TRICHLOROETHENE Sediment
TRICHLOROETHENE Soil
TRICHLOROFLUOROMETHANE Air
TRICHLOROFLUOROMETHANE Debris
TRICHLOROFLUOROMETHANE Groundwater
TRICHLOROFLUOROMETHANE Sediment
TRICHLOROFLUOROMETHANE Soil
XYLENE (MIXED ISOMERS) Groundwater
ZINC Groundwater

Location

City
Upper Merion Township
Coordinates
40.0869, -75.3555

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
Avco Lycoming (Williamsport Division) NPL Site 42.24
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

How does this site's HRS score compare in Pennsylvania?

Of the 127 Pennsylvania Superfund sites with a scored Hazard Ranking System (HRS) evaluation, Henderson Road ranks #57 by score (41.69).

Either side of it: Avco Lycoming (Williamsport Division) (42.24), Ohio River Park (42.24), Westinghouse Electric Corp. (Sharon Plant) (41.33), Delta Quarries & Disposal, Inc./Stotler Landfill (41.08)

Frequently Asked Questions

What is the Henderson Road Superfund site?
Henderson Road is an active National Priorities List (NPL) Superfund site located in Upper Merion Township, PA. It has a Hazard Ranking System (HRS) score of 41.69 (rank #57 of 127 scored Pennsylvania sites). Superfund sites are contaminated locations identified by the EPA for long-term cleanup under CERCLA.
What does NPL listing mean for Henderson Road?
According to the EPA, National Priorities List (NPL) listing designates a site for long-term federal Superfund cleanup authority. It is a programmatic status in the Superfund Enterprise Management System, not a quantitative health-risk score for nearby residents. EPA records mark construction of the cleanup remedy as complete at this site. Site-specific conditions and community guidance are published by EPA Regional Superfund offices and the relevant state environmental agency.
What is the HRS score for Henderson Road?
Henderson Road's Hazard Ranking System (HRS) score is 41.69, placing it #57 of 127 Pennsylvania Superfund sites with a scored HRS evaluation. Sites with a score of 28.50 or greater qualify for the NPL; the model weighs contaminant toxicity, waste quantity, release likelihood, and affected population, and is not a community health diagnosis.
What contaminants are at the Henderson Road site?
The EPA public Superfund extract catalogs 139 contaminants at Henderson Road, documented through the remedial investigation process. Counts reflect listed records in that extract, not a complete inventory of every substance ever present.
What is the cleanup status of Henderson Road?
Henderson Road is currently NPL Site on the National Priorities List. Construction of the cleanup remedy has been completed. The EPA Superfund cleanup process includes phases from preliminary assessment through post-construction completion.

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.

Related

Data sourced from the U.S. Environmental Protection Agency (EPA). See our methodology for details. Retrieved and formatted by PlainEnviro