Superfund / NPL site · EPA Superfund SEMS through latest publishNPL Deleted

Wildcat Landfill

This site has been deleted from the EPA Superfund National Priorities List — EPA's classification means construction-complete cleanup objectives were achieved, though monitoring may continue. Most-cited contaminant of concern: Antimony.

Lebanon Rd, Dover, Delaware · ZIP 19901 · EPA ID DED980704951

CLEANUP TIMELINE

Listing-date and cleanup-phase enrichment from EPA's per-site SEMS profile is queued for a follow-up ingest pass. Until then, this section will populate from EPA's published timeline data.

Anomaly engine

Notable Signals

No notable signals at this Superfund site for the current ingest. Cleanup-phase and SEMS-action flags are deferred to a follow-up engineering pass.

Contaminants of concern · per EPA SEMS

What's In This Site

Each row pairs a contaminant with the medium it was found in (the exposure pathway). Hover any named contaminant for an agency-cited health-risk summary. Cited count = number of SEMS decision records (RODs and related) that name the pair.

ContaminantPathwayCited
AntimonyHealth riskInhaled antimony trioxide is an IARC Group 2B possible carcinogen; respiratory and cardiovascular effects from long-term exposure. EPA MCL 6 µg/L. (IARC, EPA)Groundwater1
ArsenicHealth riskIARC Group 1 carcinogen via inhalation and ingestion. EPA MCL 10 µg/L; chronic exposure causes skin, lung, bladder cancer and cardiovascular disease. (IARC, EPA, ATSDR)Groundwater1
ArsenicHealth riskIARC Group 1 carcinogen via inhalation and ingestion. EPA MCL 10 µg/L; chronic exposure causes skin, lung, bladder cancer and cardiovascular disease. (IARC, EPA, ATSDR)Soil1
BariumHealth riskSoluble barium compounds are toxic if ingested, affecting the heart, kidneys, and nervous system. Insoluble forms (e.g. barium sulfate) are far less toxic. (EPA)Groundwater1
CadmiumGroundwater1
CadmiumSurface Water1
Chromium(Vi)Health riskHexavalent chromium (Cr-VI) is an IARC Group 1 carcinogen via inhalation, causing lung cancer; trivalent chromium is far less toxic. (IARC, EPA)Groundwater1
ChryseneGroundwater1
ChryseneSoil1
CopperHealth riskInhaled copper fumes cause metal-fume fever; chronic ingestion above EPA's 1.3 mg/L action level damages the liver. (EPA)Surface Water1
IronSurface Water1
LeadHealth riskNeurotoxin. Even low childhood exposure impairs cognitive development; chronic adult exposure damages kidneys and the cardiovascular system. (EPA, ATSDR)Groundwater1
LeadHealth riskNeurotoxin. Even low childhood exposure impairs cognitive development; chronic adult exposure damages kidneys and the cardiovascular system. (EPA, ATSDR)Surface Water1
ManganeseHealth riskExcess inhalation can cause manganism, a Parkinson-like neurological disorder. (ATSDR)Groundwater1
MercuryHealth riskNeurotoxin. Methylmercury bioaccumulates up the food chain and damages the developing nervous system. (EPA, ATSDR)Groundwater1
MercuryHealth riskNeurotoxin. Methylmercury bioaccumulates up the food chain and damages the developing nervous system. (EPA, ATSDR)Leachate1
NickelHealth riskNickel compounds are IARC Group 1 carcinogens; inhalation exposure raises lung and nasal cancer risk. (IARC)Groundwater1
Polychlorinated Biphenyls (Pcbs)Health riskPCBs. IARC Group 1 carcinogen; immune, reproductive, and neurological effects; bioaccumulate in fish and breast milk. Banned in 1979; persist as legacy contamination. (IARC, EPA)Groundwater1
Polychlorinated Biphenyls (Pcbs)Health riskPCBs. IARC Group 1 carcinogen; immune, reproductive, and neurological effects; bioaccumulate in fish and breast milk. Banned in 1979; persist as legacy contamination. (IARC, EPA)Soil1
VanadiumHealth riskRespiratory irritant. Chronic high exposure causes 'green tongue' and bronchitis. (NIOSH)Surface Water1
ZincHealth riskGenerally low acute toxicity. Chronic high-dose exposure disrupts copper absorption and immune function. (ATSDR)Surface Water1
Drinking-water linkage · SDWIS

Groundwater Systems Serving Communities Within 3 Miles

The 55 systems below draw on groundwater (or mixed sources) and serve communities whose centroid sits within 3 miles of this site. Distance is to the served-city centroid — SDWIS does not expose individual wellhead locations, so this is a proximity screen, not a wellhead-impact assessment.

Water systemServesDistancePopulation servedSourceStatus
Garrison Lake Pump District PrivateDover3.0 mi17,148GROUNDWATERIn compliance
Frederick Lodge Pump District PrivateDover3.0 mi204GROUNDWATERIn compliance
Hunters Pointe Pump District PrivateDover3.0 mi261GROUNDWATERIn compliance
Cooper Farm Pump District PrivateDover3.0 mi249GROUNDWATERIn compliance
Camden Pump District MunicipalDover3.0 mi17,208GROUNDWATERIn compliance
Voshells Cove Pump District PrivateDover3.0 mi252GROUNDWATERIn compliance
Willow Tree Properties Llc PrivateDover3.0 mi123GROUNDWATERIn compliance
Summit Pond Pump District PrivateDover3.0 mi177GROUNDWATERIn compliance
Bridgeville Mall (Tui) PrivateDover3.0 mi550GROUNDWATERIn compliance
Hunter Mill Estates Pump District PrivateDover3.0 mi432GROUNDWATERIn compliance
Bethany Bay Pump District PrivateDover3.0 mi51,000GROUNDWATERIn compliance
Indian River Acres Pump District PrivateDover3.0 mi300GROUNDWATERIn compliance
Broadkiln Beach Water Company (Tui) PrivateDover3.0 mi3,171GROUNDWATERIn compliance
Fishermans Village (Tui) PrivateDover3.0 mi129GROUNDWATERIn compliance
Strimel's Mhp Llc. PrivateDover3.0 mi40GROUNDWATERIn compliance
Kitts Hummock Improvement Assoc PrivateDover3.0 mi305GROUNDWATERIn compliance
Pinewood Acres PrivateDover3.0 mi1,200GROUNDWATERIn compliance
Oak Grove Estates PrivateDover3.0 mi150GROUNDWATER1 HEALTH-BASED · 5YR
Dover Water Department MunicipalDover3.0 mi39,491GROUNDWATERUNRESOLVED
Village Of Grandview PrivateDover3.0 mi108GROUNDWATERIn compliance
Dover Air Park PrivateDover3.0 mi252GROUNDWATERIn compliance
Dover Air Force Base FederalDover3.0 mi11,000GROUNDWATERIn compliance
Southwood Acres Pump District PrivateDover3.0 mi591GROUNDWATERIn compliance
Bridgeville Pump District PrivateDover3.0 mi1,542GROUNDWATERIn compliance
Forest Grove Pump District PrivateDover3.0 mi330GROUNDWATERIn compliance
Rehoboth Pump District (Tui) PrivateDover3.0 mi81,417GROUNDWATERIn compliance
Frederica Pump District PrivateDover3.0 mi861GROUNDWATERIn compliance
Country Grove PrivateDover3.0 mi426GROUNDWATERIn compliance
Pepper Creek District (Tui) PrivateDover3.0 mi414GROUNDWATERIn compliance
Ponds Of Willow Grove PrivateDover3.0 mi126GROUNDWATERIn compliance
Wild Quail Pump District PrivateDover3.0 mi1,017GROUNDWATERIn compliance
Meadows At Cubbage Pond PrivateDover3.0 mi201GROUNDWATERIn compliance
Woodlands Of Millsboro Pump District PrivateDover3.0 mi171GROUNDWATERIn compliance
Teal Point (Tui) PrivateDover3.0 mi117GROUNDWATERIn compliance
Clearbrooke Estates Pump District PrivateDover3.0 mi768GROUNDWATERIn compliance
Green Acres Pump District PrivateDover3.0 mi213GROUNDWATERIn compliance
East Ncc District PrivateDover3.0 mi5,538GROUNDWATERIn compliance
North West Pump District PrivateDover3.0 mi4,149GROUNDWATERIn compliance
Canterbury Crossing Pump District PrivateDover3.0 mi471GROUNDWATERIn compliance
Drawyers Creek Pump District PrivateDover3.0 mi192GROUNDWATERIn compliance
South East Pump District PrivateDover3.0 mi936GROUNDWATERIn compliance
Point Farm PrivateDover3.0 mi270GROUNDWATERIn compliance
South Shores (Tui) PrivateDover3.0 mi402GROUNDWATERIn compliance
Long Farm Estates Pump District PrivateDover3.0 mi123GROUNDWATERIn compliance
Misty Pines Pump District PrivateDover3.0 mi168GROUNDWATERIn compliance
Sea Winds Pump District PrivateDover3.0 mi141GROUNDWATERIn compliance
Grants Way Pump District (Tui) PrivateDover3.0 mi639GROUNDWATERIn compliance
Laurel Pump District PrivateDover3.0 mi81GROUNDWATERIn compliance
Country Club Village (Tui) PrivateDover3.0 mi192GROUNDWATERIn compliance
Blue Heron Estates PrivateDover3.0 mi111GROUNDWATERIn compliance
Sandy Ridge Pump District PrivateDover3.0 mi243GROUNDWATERIn compliance
Willow Lake Pump District PrivateDover3.0 mi120GROUNDWATERIn compliance
Gander Woods Pump District PrivateDover3.0 mi42GROUNDWATERIn compliance
Bayside Pump District (Tui) PrivateDover3.0 mi8,400GROUNDWATERIn compliance
Kenton Pump District PrivateDover3.0 mi465GROUNDWATERIn compliance

Methodology: served-city centroid (TIGER 2020) is used as the PWS coordinate. Source-water classification from SDWIS primary_source_code; only groundwater and mixed-source systems are queried. Click any system above for its full SDWIS profile.

Equity context · ACS 2018-2022 block-group demographics

Who Lives Near This Site

Within 1 mile of this site (3 Census block groups, population-weighted demographics): a population of 4,356. Why we surface this →

POPULATION SHARE
31.3%

Low-income

POPULATION SHARE
56.0%

People of color

POPULATION SHARE
6.3%

Under age 5

POPULATION SHARE
9.7%

Over age 64

Source: Census ACS 2018-2022 block-group demographics, population-weighted across the 1-mile buffer around this site (from USEPA-clone/EJAM-open blockgroupstats). NPL site proximity contributes to the national EJ pattern; indicator-level percentile and disparity scores are surfaced on the county page and the state page.

Source. EPA Superfund Enterprise Management System (SEMS) · retrieved 2026-05-07. SEMS is a federal public-domain dataset under 17 USC §105.

What this is not. We report EPA's published Superfund record — site listing, status, and contaminants of concern as named in EPA's decision documents. We do not perform site visits, independent air or water sampling, or current-state health-risk assessment. NPL listing reflects EPA's Hazard Ranking Score at a point in time; it does not by itself describe present-day exposure.