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

Brewster Well Field

This site is currently on the EPA Superfund National Priorities List and remains under federal cleanup oversight. Most-cited contaminant of concern: (E)-1,3-Dichloro-1-Propene.

Main St /Se, Putnam County, New York · ZIP 10509 · EPA ID NYD980652275

See Putnam ContaminantsEquity contextHow we read Superfund data
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
(E)-1,3-Dichloro-1-PropeneGroundwater1
1,1,1-TrichloroethaneHealth riskMethyl chloroform. CNS depressant; ozone-depleting substance phased out under Montreal Protocol. EPA MCL 200 µg/L. (EPA, ATSDR)Groundwater1
1,1,2,2-TetrachloroethaneGroundwater1
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
1,1-DichloroetheneHealth riskVinylidene chloride; IARC Group 3 (inadequate evidence in humans) but liver toxic in animal studies; common TCE/PCE biodegradation product. (IARC, EPA)Soil1
1,2-DichloroethaneHealth riskIARC Group 2B possible carcinogen; liver and kidney toxic. EPA MCL 5 µg/L. (IARC, EPA)Groundwater1
1,2-DichloropropaneGroundwater1
BenzeneHealth riskIARC Group 1 carcinogen. Long-term inhalation causes leukemia and bone-marrow disorders. (IARC, EPA)Groundwater1
Bis(2-Ethylhexyl)PhthalateGroundwater1
BromodichloromethaneGroundwater1
BromoformGroundwater1
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
DibromochloromethaneGroundwater1
Dibutyl PhthalateGroundwater1
Diethyl PhthalateGroundwater1
EthylbenzeneHealth riskIARC Group 2B possible carcinogen; eye and respiratory irritant. (IARC)Groundwater1
N,N-Diphenylnitrous AmideGroundwater1
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)Debris1
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
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)Sediment1
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)Sludge1
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)Soil1
TolueneHealth riskCentral-nervous-system depressant. Chronic high exposure causes hearing loss and developmental effects. (EPA, ATSDR)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)Debris1
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
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)Sediment1
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)Sludge1

Showing the top 30 pairs by SEMS citation count. 2 additional (contaminant, pathway) pairs are recorded for this site.

Drinking-water linkage · SDWIS

Groundwater Systems Serving Communities Within 3 Miles

The 16 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
Dover Plains Water Co PrivateBrewster0.9 mi800GROUNDWATERIn compliance
Riverside Apartments PrivateBrewster0.9 mi36GROUNDWATERIn compliance
Brewster Village MunicipalBrewster0.9 mi2,162GROUNDWATERUNRESOLVED
Vails Grove Cooperative PrivateBrewster0.9 mi500GROUNDWATERIn compliance
Holly Stream Condominium Apts PrivateBrewster0.9 mi168GROUNDWATERUNRESOLVED
Starr Ridge Manor MunicipalBrewster0.9 mi295GROUNDWATERIn compliance
Fox Hill Estates MunicipalBrewster0.9 mi100GROUNDWATERUNRESOLVED
Blackberry Hill MunicipalBrewster0.9 mi500GROUNDWATERIn compliance
Mountain Brook Homes MunicipalBrewster0.9 mi125GROUNDWATER15 HEALTH-BASED · 5YR
Hillcrest Water District MunicipalBrewster0.9 mi400GROUNDWATERIn compliance
Tilly Foster Apartments PrivateBrewster0.9 mi36GROUNDWATERUNRESOLVED
Peaceable Hill Water District MunicipalBrewster0.9 mi475GROUNDWATERUNRESOLVED
Springhouse Estates W.W. Corp. MunicipalBrewster0.9 mi162GROUNDWATERUNRESOLVED
Green Chimneys: Main Well PrivateBrewster0.9 mi500GROUNDWATERIn compliance
Delancy Street Foundation (Castle) PrivateBrewster0.9 mi48GROUNDWATERUNRESOLVED
Birch Hill Acres PrivateBrewster0.9 mi60GROUNDWATERUNRESOLVED

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 (2 Census block groups, population-weighted demographics): a population of 1,792. Why we surface this →

POPULATION SHARE
22.7%

Low-income

POPULATION SHARE
39.0%

People of color

POPULATION SHARE
2.8%

Under age 5

POPULATION SHARE
16.7%

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.