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Review government records associated with Williamsport, 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 Williamsport, PA from EPA SDWIS.
Williamsport Mun Water Auth
PFAS above an official threshold detected in available EPA records.
Reviewed: active/open records as of Q1 2026
City listed in EPA records · Serves 51,000 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 2024 to Dec 2024.
Drinking Water PFAS Monitoring
EPA UCMR5 samples public water systems. These results are separate from nearby PFAS cleanup or investigation-site records.
1 PFAS sample result above EPA limits
Sample period: Sep 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 |
|---|---|---|---|---|
| PFOS | 0.0051 | 0.0040 | 2024-09-03 | Yes |
PFAS detections below EPA limits.
Nearby PFAS Investigation Sites
DoD records are nearby site investigations, not Williamsport 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.
Lycoming Creek-West Branch Susquehanna River
Reported: Nov 2026
Health-relevant causes: Pathogens
Affected uses: Ecological, 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
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.
Lycoming 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
No EPA nonattainment designation records shown for this report.
EPA annual monitor summaries describe past measurements. For current air quality, see AirNow.
Montoursville
Annual mean: 0.043 Parts per million
EPA primary exceedance count: 1 (Ozone 8-hour 2015)
Observation year: 2025
Salladasburg — Jersey Shore, Pennsylvania
Annual mean: 7.0 Micrograms/cubic meter (LC)
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.
Arxada LLC
Reported: 2024
High Steel Structures - Williamsport Facility
Reported: 2024
Lycoming Engines A Div of Avco Corp
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 110037239878
Reported: Nov 2021
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
Williams Street, Williamsport
Reported: Feb 2026
1609 Memorial Ave, Williamsport
Reported: Feb 2026
233 West 3rd Street, Williamsport
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
Release reports
Reported: Dec 2021
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 FUDSNo MSHA mine or extraction site records shown for this report.
Lycoming County, PA
EPA Radon Zone Map (June 2024 release)
Lycoming 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.
Reviewed: 2000-present
Health outcomes from County Health Rankings. Values shown alongside state and national averages.
Lycoming County, PennsylvaniaPop. 113,104
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 | 8,336 | 8,032 | 7,972 |
| Poor or Fair Health | 15.8% | 14.7% | 14.2% |
| Poor Physical Health Days | 3.7 | 3.4 | 3.3 |
| Poor Mental Health Days | 5.1 | 4.7 | 4.8 |
| Adult Smoking | 19.0% | 14.9% | 15.0% |
| Adult Obesity | 36.9% | 33.3% | 34.0% |
| Air Pollution - Particulate Matter | 8.2 | 8.5 | 7.3 |
| Drinking water violation indicator | Yes | N/A | N/A |
| Diabetes Prevalence | 8.8% | 9.4% | 9.6% |
| Life Expectancy | 76.5 | 77.3 | 77.6 |
EPA testing found PFAS in water samples from Williamsport Mun Water Auth. Results dated Mar 5, 2024 to Dec 10, 2024 include PFNA at 0.0045 to 0.0097 micrograms per liter and PFOS at 0.0051 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 Williamsport Mun Water Auth.
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 Williamsport.
The monitoring station at Montoursville recorded an annual average of 0.043 Parts per million for ozone in 2025.
The monitoring station at Salladasburg, Jersey Shore, Pennsylvania recorded an annual average of 7 Micrograms/cubic meter (LC) for fine particles (PM2.5) in 2025.
The radon data for Williamsport covers Lycoming 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 1 Superfund site: Avco Lycoming Superfund Site.
This city report shows 3 brownfield sites: Blue Cross Blue Shield Parking Lot; Brodart Warehouse; China Aa Restaraunt.
View on EPA ECHOView on EPA ECHOView on EPA ECHOView on EPA ECHO
The county data for Williamsport reports a life expectancy of 76.5 years in Lycoming 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 Williamsport reports 8,336 years of life lost to deaths before age 75 per 100,000 residents in Lycoming 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 Williamsport lists fine-particle pollution (PM2.5) at 8.2 micrograms per cubic meter in Lycoming County, Pennsylvania.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.