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Review government records associated with Chester, Pennsylvania.
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Check your water bill for your utility name and confirm the reporting year. See EPA’s guide to finding your annual water quality report.
Public water-system records for Chester, PA from EPA SDWIS.
Chester Water Authority
PFAS above an official threshold detected in available EPA records.
Reviewed: active/open records as of Q1 2026
City listed in EPA records · Serves 140,437 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 Feb 2024 to Nov 2024.
Drinking Water PFAS Monitoring
EPA UCMR5 samples public water systems. These results are separate from nearby PFAS cleanup or investigation-site records.
2 PFAS sample results above EPA limits
Sample period: Feb 2024 to May 2024
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 | 0.0051 | 0.0040 | 2024-05-06 | Yes |
| PFOA | 0.0046 | 0.0040 | 2024-02-12 | Yes |
PFAS detections below EPA limits.
Nearby PFAS Investigation Sites
DoD records are nearby site investigations, not Chester drinking-water detections. Record names come from the source database and can be broad.
No DoD PFAS investigation records shown for this report.
EPA ATTAINS records identify assessed water bodies that do not meet water-quality standards for designated uses.
Repaupo Creek-Delaware River
Reported: Nov 2026
Health-relevant causes: Mercury, Metals (other Than Mercury), Pathogens, Pesticides, Polychlorinated Biphenyls (pcbs)
Affected uses: Drinkingwater, Ecological, Fishconsumption, Recreation
Data from EPA ATTAINS
NPDES permits regulate pollutant discharges into U.S. waterways. Facilities must report compliance quarterly.
Violation records
Last inspected: Dec 2025
Last inspected: Dec 2025
Data from EPA ECHO
To investigate water contamination, check the sampling locations, dates and results below. For tap water records, see Drinking water quality above.
Reviewed: source records as of 2026
Review historical EPA air pollution records, including monitoring and facility emissions where available. For current conditions, check local air quality on AirNow.
Delaware County
Assessment year: 2020
According to EPA, a cancer risk of 30-in-1-million means that for every 1 million people continuously exposed to these air toxics over a 70-year lifetime, an estimated 30 may develop cancer from that exposure. This is in addition to cancer risk from all other causes.
Top modeled source groups
Data from EPA AirToxScreen
EPA designations apply to a specific pollutant and federal air quality standard (NAAQS). EPA can issue a clean-data determination while a formal designation remains in effect.
Philadelphia-Wilmington-Atlantic City: Ozone
NonattainmentSerious8-Hour Ozone (2015 Standard)
Health effects (EPA): Respiratory inflammation, aggravation of asthma, reduced lung function (EPA)
Maintenance areas
Previously nonattainment; currently meeting the standard and monitored under an EPA maintenance plan.
Delaware County
PM2.5 · PM-2.5 (2012 Standard)
Classification: Moderate
Original designation: Apr 2015
Current design value: 8.3 µg/m³ (2023-2025)
Philadelphia-Wilmington
PM2.5 · PM-2.5 (2006 Standard)
Classification: Moderate
Original designation: Dec 2009
Current design value: 28 µg/m³ (2023-2025)
Data from EPA Green Book
EPA annual monitor summaries describe past measurements. For current air quality, see AirNow.
Air Management Services Laboratory (Ams Lab) — Philadelphia, Pennsylvania
Annual mean: 0.043 Parts per million
EPA primary exceedance count: 3 (Ozone 8-hour 2015)
Observation year: 2025
Annual mean: 9.6 Micrograms/cubic meter (LC)
Observation year: 2025
Annual mean: 0.042 Parts per million
EPA primary exceedance count: 2 (Ozone 8-hour 2015)
Observation year: 2025
Data from EPA AQS
Reviewed: source records as of Q4 2025
TRI releases are self-reported annual totals (calendar year 2024). Hover fugitive or stack for definitions.
Braskem America Inc
Reported: 2024
Crown Foundry Co West Philadelphia Bronze
Reported: 2024
Entegris Inc.
Reported: 2024
EPA records for current, proposed and formerly listed Superfund sites on the National Priorities List (NPL).
Open data source: Search EPA ECHOEPA FRS Registry ID 110043993774
Reported: Nov 2021
EPA FRS Registry ID 110004849709
Reported: Nov 2021
Brownfield sites are properties where redevelopment is complicated by the presence of hazardous substances.
Open data source: Search EPA ECHO1 site with active cleanup or investigation status
2424 2430 Howard Street, Philadelphia
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
No MSHA mine or extraction site records shown for this report.
Delaware County, PA
EPA Radon Zone Map (June 2024 release)
Delaware County is EPA Radon Zone 1 (highest potential). EPA defines Zone 1 counties as having predicted average indoor screening levels above 4 pCi/L.
Radon levels can vary from home to home, so EPA recommends testing the property to know its indoor level.
FEMA flood zones describe mapped flood hazards. Look up a specific address with FEMA.
Minimal flood hazard — outside the 1% and 0.2% annual chance floodplains.
Results use an earlier stored RMP inventory. Current EPA ECHO location coverage is unverified.
EPA ECHO lists facilities linked to the Risk Management Program. Results include facilities with locations that can be matched. Records may be historical. Current operations, chemical inventories, and recent accident history are unverified.
PHMSA tracks incidents involving natural gas and hazardous liquid pipelines. Incidents include leaks, ruptures, and explosions.
Recent Incidents (last 5 years)
SUNOCO PIPELINE L.P.
Incident date: Aug 9, 2024
Property damage: $2,750,000
TRANSCONTINENTAL GAS PIPE LINE COMPANY
Incident date: Oct 2, 2024
Property damage: $391,833
Data from PHMSA
Health outcomes from County Health Rankings. Values shown alongside state and national averages.
Delaware County, PennsylvaniaPop. 575,182
County Health Rankings edition: 2024
Premature Death
Poor or Fair Health
Poor Physical Health Days
Poor Mental Health Days
Adult Smoking
Adult Obesity
Air Pollution - Particulate Matter
Drinking water violation indicator
Diabetes Prevalence
Life Expectancy
| Indicator | County | State | National |
|---|---|---|---|
| Premature Death | 7,764 | 8,032 | 7,972 |
| Poor or Fair Health | 14.5% | 14.7% | 14.2% |
| Poor Physical Health Days | 3.3 | 3.4 | 3.3 |
| Poor Mental Health Days | 4.8 | 4.7 | 4.8 |
| Adult Smoking | 15.7% | 14.9% | 15.0% |
| Adult Obesity | 32.8% | 33.3% | 34.0% |
| Air Pollution - Particulate Matter | 10.8 | 8.5 | 7.3 |
| Drinking water violation indicator | No | N/A | N/A |
| Diabetes Prevalence | 9.0% | 9.4% | 9.6% |
| Life Expectancy | 77.6 | 77.3 | 77.6 |
EPA testing found PFAS in water samples from Chester Water Authority. Results dated Feb 12, 2024 to Nov 13, 2024 include PFOA at 0.0046 to 0.0051 micrograms per liter and PFBS at 0.0032 to 0.0045 micrograms per liter.
Check with the utility that serves your address for its testing results.
The EPA drinking water records available here list no violations for Chester Water Authority.
Check your water bill to identify the utility serving your address. Ask that utility about current drinking water advisories.
Nearby EPA monitoring stations provide annual air quality measurements for Chester.
The monitoring station at Air Management Services Laboratory (Ams Lab), Philadelphia, Pennsylvania recorded an annual average of 0.043 Parts per million for ozone in 2025.
The monitoring station at Air Management Services Laboratory (Ams Lab), Philadelphia, Pennsylvania recorded an annual average of 9.6 Micrograms/cubic meter (LC) for fine particles (PM2.5) in 2025.
The monitoring station at Bcsp recorded an annual average of 0.042 Parts per million for ozone in 2025.
The radon data for Chester covers Delaware County. EPA places this area in Zone 1, with a predicted average indoor radon screening level above 4 picocuries per liter.
This city report shows 2 Superfund sites: Metro Container Corporation; Wade (Abm).
This city report shows 1 brownfield site: Hunter School Homeownership G3tfny00.
The county data for Chester reports a life expectancy of 77.6 years in Delaware County, Pennsylvania.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.
The county data for Chester reports 7,764 years of life lost to deaths before age 75 per 100,000 residents in Delaware County, Pennsylvania. This measure adds up the years lost to early deaths and adjusts for differences in population age.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.
The county data for Chester lists fine-particle pollution (PM2.5) at 10.8 micrograms per cubic meter in Delaware County, Pennsylvania.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.
Federal pipeline records list an incident involving Sunoco Pipeline L.P. near Chester on Aug 9, 2024. The reported release was a liquid petroleum product.
Federal pipeline records list an incident involving Transcontinental Gas Pipe Line Company near Chester on Oct 2, 2024. The reported release was natural gas.
Federal pipeline records list an incident involving Buckeye Partners, LP near Chester on Feb 2, 2011. The reported release was a liquid petroleum product.