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Preparing Shelton environmental records...
Review government records associated with Shelton, Connecticut. Open a section to see source records, coverage and dates. These city-level results do not establish exposure at a home or identify your water provider.
Toxin Scout summarizes public records from government and public datasets. Data can be delayed, incomplete, approximate, matched at non-parcel levels, or have accuracy problems as a result of this product's beta status, so verify important findings against the linked source records.
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Preparing Shelton environmental records...
Counts describe the records shown, not a complete city inventory. Some sources include nearby locations.
Drinking water compliance, PFAS records, natural water body health, discharge permits, and water-quality monitoring records for Shelton.
Public water-system records for Shelton, CT from EPA SDWIS.
Aquarion-Stamford
Active monitoring or reporting issue detected in EPA SDWIS.
Reviewed: active/open records as of Q1 2026
City listed in EPA records · Serves 119,214 people
Data from EPA SDWIS
PFAS screening separates EPA UCMR5 drinking-water monitoring from nearby DoD PFAS investigation-site records; EPA samples shown are from Mar 2025 to Dec 2025.
Drinking Water PFAS Monitoring
EPA UCMR5 samples public water systems. These results are separate from nearby PFAS cleanup or investigation-site records.
3 PFAS sample results above EPA limits
Sample period: Mar 2025 to Dec 2025
UCMR5 results are sampled by public water system, not every household. Confirm your water provider before treating these as tap-water results for a specific address.
| Chemical | Concentration (µg/L) | EPA Limit (µg/L) | Sample date | Over Limit |
|---|---|---|---|---|
| PFOA | 0.0043 | 0.0040 | 2025-12-02 | Yes |
| PFOA | 0.0042 | 0.0040 | 2025-09-10 | Yes |
| PFOA | 0.0042 | 0.0040 | 2025-03-05 | Yes |
PFAS detections below EPA limits.
Nearby PFAS Investigation Sites
DoD records are nearby site investigations, not Shelton drinking-water detections. Record names come from the source database and can be broad.
No DoD PFAS investigation records shown for this report.
Water Body Impairment (ATTAINS) city records are temporarily unavailable.
NPDES permits regulate pollutant discharges into U.S. waterways. Facilities must report compliance quarterly.
No NPDES-permitted facility records with violations surfaced for this city report.
Reviewed: active/open records as of Q4 2025
Data from EPA ECHO
Reviewed: source records as of 2026
Air quality data from EPA monitoring stations, facility emissions inventories, and area-level air-quality designations in this city.
Air Quality Nonattainment Areas city records are temporarily unavailable.
Usgs Lighthouse — Stratford (Town of), Connecticut
Annual mean: 0.047 ppm · EPA standard: 0.07 ppm
Annual standard context: 8 exceedance days recorded in the reporting period
Reported: 2024
Criscuolo Park-New Haven
Annual mean: 0.5 ppb · EPA standard: 75 ppb
Reported: 2024
Annual mean: 0.3 ppm · EPA standard: 9 ppm
Reported: 2024
Data from EPA AQS
Facilities regulated under the Clean Air Act. CAA HPV flags indicate serious noncompliance such as exceeding emission limits.
No facility records with active violation or noncompliance flags surfaced in EPA ECHO.
Reviewed: active/open records as of Q4 2025
Data from EPA ECHO
TRI releases are self-reported annual totals (calendar year 2024). Hover fugitive or stack for definitions.
Anco Engineering Inc.
Reported: 2024
Contaminated sites, waste facilities, cleanup records, and industrial operations in this city.
Reviewed: source query run Oct 2026
Brownfield sites are properties where redevelopment is complicated by the presence of hazardous substances.
Open data source: Search EPA ECHO3 sites with active cleanup or investigation status
0 Canal Street, Shelton
Reported: Feb 2026
113 Canal Street, Shelton
Reported: Feb 2026
123 Canal Street, Shelton
Reported: Feb 2026
Facilities with hazardous-waste handler records under RCRA in the reviewed 5-mile city-center search area. Active handler status is separate from air, water, or other ECHO compliance violations, which are shown in their own sections.
Active RCRA handler records in the reviewed city search area
No release reports shown in this group.
Reviewed: active/open records as of 2018
Data from EPA UST Finder
Reviewed: reporting year 2024
Formerly Used Defense Sites are properties previously owned by, leased to, or otherwise possessed by the United States and under the jurisdiction of the Secretary of Defense. The FUDS program addresses environmental restoration at these properties.
Open data source: USACE FUDSReported: Oct 2026
Sites regulated by the Mine Safety and Health Administration, including mines, sand and gravel operations, and portable crushers. Status and type are from the MSHA Mine Data Retrieval System. Records with active/intermittent status dates older than 5 years are shown as older records rather than current active sites.
Recently updated active/intermittent sites (3)
Data from MSHA
Flood-map status, chemical accident risk, nuclear facilities, pipeline incidents, and community health indicators in this city.
No FEMA flood-zone records shown for this report.
Risk Management Program records cover listed chemicals above EPA thresholds. Records may include historical registrations and do not confirm current operations or current chemical inventories.
Accident history is not established by these EPA ECHO facility records.
Reviewed: source records as of Q1 2026
Data from EPA ECHO
Reviewed: 2000-present