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

General Dynamics Longwood

This site is currently on the EPA Superfund National Priorities List and remains under federal cleanup oversight. Most-cited contaminant of concern: 1,1,1-Trichloroethane.

1333 North Us Highway 17/92, Longwood, Florida · ZIP 32750 · EPA ID FLR000091322

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
1,1,1-TrichloroethaneHealth riskMethyl chloroform. CNS depressant; ozone-depleting substance phased out under Montreal Protocol. EPA MCL 200 µg/L. (EPA, ATSDR)Groundwater1
1,1-DichloroethaneHealth riskSuspected carcinogen (EPA C/likely); CNS depressant. Common at solvent-contaminated sites as a degradation intermediate. (EPA, ATSDR)Groundwater1
1,1-DichloroetheneHealth riskVinylidene chloride; IARC Group 3 (inadequate evidence in humans) but liver toxic in animal studies; common TCE/PCE biodegradation product. (IARC, EPA)Groundwater1
1,4-DioxaneHealth riskIARC Group 2B possible carcinogen; persistent in groundwater, resists conventional treatment. EPA HRL 0.35 µg/L (10⁻⁶ cancer risk). (IARC, EPA)Groundwater1
ChloroethaneGroundwater1
Chloroethene (Vinyl Chloride)Health riskIARC Group 1 carcinogen — angiosarcoma of the liver. Final TCE/PCE biodegradation product; commonly found in groundwater plumes. EPA MCL 2 µg/L. (IARC, EPA)Groundwater1
ChloroformGroundwater1
Cis-1,2-DichloroetheneHealth riskTCE biodegradation intermediate. EPA MCL 70 µg/L; lower toxicity than parent solvents but commonly co-occurs in groundwater plumes. (EPA)Groundwater1
TetrachloroetheneHealth riskPCE / 'perc'. IARC Group 2A probable carcinogen; central-nervous-system effects; common dry-cleaning solvent and DNAPL plume contaminant. EPA MCL 5 µg/L. (IARC, EPA)Groundwater1
Trans-1,2-DichloroetheneHealth riskTCE biodegradation intermediate. EPA MCL 100 µg/L; lower toxicity than parent solvents but commonly co-occurs in groundwater plumes. (EPA)Groundwater1
TrichloroetheneHealth riskTCE. IARC Group 1 carcinogen — kidney cancer; suspected liver cancer and non-Hodgkin lymphoma. EPA MCL 5 µg/L; common DNAPL groundwater plume contaminant. (IARC, EPA, ATSDR)Groundwater1
Drinking-water linkage · SDWIS

Groundwater Systems Serving Communities Within 3 Miles

The 38 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
Arredondo Estates PrivateLongwood1.9 mi738GROUNDWATERIn compliance
Beverly Beach Water System PrivateLongwood1.9 mi1,413GROUNDWATER4 HEALTH-BASED · 5YR
Fgua - Plantation Bay Wtp PrivateLongwood1.9 mi3,522GROUNDWATERIn compliance
Nassau-Amelia Utilities PrivateLongwood1.9 mi9,750GROUNDWATERIn compliance
Interlachen Lake Estates MixedLongwood1.9 mi717GROUNDWATERUNRESOLVED
Pomona Park Water System MixedLongwood1.9 mi672GROUNDWATERIn compliance
Rivergrove Subdivison PrivateLongwood1.9 mi375GROUNDWATERIn compliance
Saratoga Harbor MixedLongwood1.9 mi111GROUNDWATERIn compliance
Welaka Mhp MixedLongwood1.9 mi318GROUNDWATERUNRESOLVED
Wooten's Mhp PrivateLongwood1.9 mi87GROUNDWATER1 HEALTH-BASED · 5YR
Silver Lake Oaks Mhp PrivateLongwood1.9 mi94GROUNDWATERIn compliance
Vacation Village Condominiums PrivateLongwood1.9 mi58GROUNDWATERUNRESOLVED
Rosalie Oaks PrivateLongwood1.9 mi205GROUNDWATERUNRESOLVED
Breeze Hill Mobile Home Park PrivateLongwood1.9 mi279GROUNDWATERUNRESOLVED
Longwood, City Of (2 Wps) MunicipalLongwood1.9 mi23,237GROUNDWATERUNRESOLVED
Seminole Woods PrivateLongwood1.9 mi780GROUNDWATERUNRESOLVED
Florida Governmental Utility Authority PrivateLongwood1.9 mi32,296GROUNDWATERUNRESOLVED
Lake Fairways Mobile Home Park PrivateLongwood1.9 mi2,000GROUNDWATERUNRESOLVED
Castle Lake Park PrivateLongwood1.9 mi196GROUNDWATERIn compliance
Meadow Drive S PrivateLongwood1.9 mi159GROUNDWATERUNRESOLVED
West Citrus Utilities PrivateLongwood1.9 mi192GROUNDWATERUNRESOLVED
Pine Valley PrivateLongwood1.9 mi164GROUNDWATERUNRESOLVED
Kenwood North PrivateLongwood1.9 mi172GROUNDWATERUNRESOLVED
Peace River Heights PrivateLongwood1.9 mi250GROUNDWATERUNRESOLVED
Dixie Groves Estates PrivateLongwood1.9 mi880GROUNDWATERUNRESOLVED
Cypress Cove - Foxwood PrivateLongwood1.9 mi1,588GROUNDWATERUNRESOLVED
Linda Lake Groves PrivateLongwood1.9 mi283GROUNDWATERUNRESOLVED
Angus Valley PrivateLongwood1.9 mi1,500GROUNDWATERUNRESOLVED
Virginia City PrivateLongwood1.9 mi787GROUNDWATERUNRESOLVED
Westwood S/D MunicipalLongwood1.9 mi344GROUNDWATERUNRESOLVED
Turtle Lakes (Mad Hatter East) MixedLongwood1.9 mi7,021GROUNDWATERUNRESOLVED
Anclote Village PrivateLongwood1.9 mi1,257GROUNDWATERUNRESOLVED
Seven Springs PrivateLongwood1.9 mi32,834GROUNDWATERUNRESOLVED
Paradise Lakes PrivateLongwood1.9 mi1,173GROUNDWATERUNRESOLVED
Gibsonia Estates Water System PrivateLongwood1.9 mi414GROUNDWATERUNRESOLVED
Orange Hill - Sugar Creek PrivateLongwood1.9 mi647GROUNDWATERUNRESOLVED
Lake Gibson Estates PrivateLongwood1.9 mi1,897GROUNDWATERUNRESOLVED
Spring Cove Resorts PrivateLongwood1.9 mi225GROUNDWATERIn 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 7,555. Why we surface this →

POPULATION SHARE
29.7%

Low-income

POPULATION SHARE
54.1%

People of color

POPULATION SHARE
9.2%

Under age 5

POPULATION SHARE
12.2%

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.