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Review government records associated with Siler City, North Carolina.
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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 Siler City, NC from EPA SDWIS.
Siler City, Town of
Active monitoring or reporting issue detected in EPA SDWIS.
Reviewed: active/open records as of Q1 2026
City listed in EPA records · Serves 8,520 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 2025 to Nov 2025.
Drinking Water PFAS Monitoring
EPA UCMR5 samples public water systems. These results are separate from nearby PFAS cleanup or investigation-site records.
12 PFAS sample results above EPA limits
Sample period: Feb 2025 to Nov 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 |
|---|---|---|---|---|
| PFOS | 0.0121 | 0.0040 | 2025-08-13 | Yes |
| PFOS | 0.0117 | 0.0040 | 2025-08-13 | Yes |
| PFOS | 0.0069 | 0.0040 | 2025-05-13 | Yes |
| PFOS | 0.0068 | 0.0040 | 2025-05-13 | Yes |
| PFOS | 0.0051 | 0.0040 | 2025-02-10 | Yes |
| PFOA | 0.0047 | 0.0040 | 2025-02-10 | Yes |
| PFOS | 0.0046 | 0.0040 | 2025-11-12 | Yes |
| PFOS | 0.0046 | 0.0040 | 2025-11-12 | Yes |
| PFOA | 0.0045 | 0.0040 | 2025-08-13 | Yes |
| PFOA | 0.0043 | 0.0040 | 2025-05-13 | Yes |
| PFOA | 0.0042 | 0.0040 | 2025-05-13 | Yes |
| PFOA | 0.0041 | 0.0040 | 2025-08-13 | Yes |
PFAS detections below EPA limits.
Nearby PFAS Investigation Sites
DoD records are nearby site investigations, not Siler City drinking-water detections. Record names come from the source database and can be broad.
No DoD PFAS investigation records shown for this report.
No health-relevant impairment records shown among the assessment records in this report.
Reviewed: source records as of 2026
NPDES permits regulate pollutant discharges into U.S. waterways. Facilities must report compliance quarterly.
No NPDES-permitted facility records with current violation flags surfaced for this city report.
Reviewed: active/open records as of Q4 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.
Chatham 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.
Reviewed: source records as of Q4 2025
Reviewed: source records as of 2024
Reviewed: source query run Nov 2026
Brownfield sites are properties where redevelopment is complicated by the presence of hazardous substances.
Open data source: Search EPA ECHO2 sites with active cleanup or investigation status
1704 East 11th Street, Siler City
Reported: Feb 2026
304 S Chatham Avenue, Siler City
Reported: Feb 2026
State environmental agencies maintain cleanup site databases that include state Superfund, voluntary cleanup, and brownfield remediation programs. These programs track additional sites beyond those on the federal NPL.
2 sites with active cleanup or investigation
420 E 3RD ST, SILER CITY
0.3 miles away · CHATHAM County
Reported: Nov 2026
1101 AND 1200 E THIRD ST, SILER CITY
0.9 miles away · CHATHAM County
Reported: Nov 2026
Data from EPA ECHO
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
No MSHA mine or extraction site records shown for this report.
Chatham County, NC
EPA Radon Zone Map (June 2024 release)
Chatham County is EPA Radon Zone 3 (low potential). EPA defines Zone 3 counties as having predicted average indoor screening levels below 2 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.
Chatham County, North CarolinaPop. 79,864
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 | 7,683 | 8,853 | 7,972 |
| Poor or Fair Health | 12.8% | 14.4% | 14.2% |
| Poor Physical Health Days | 3.0 | 3.3 | 3.3 |
| Poor Mental Health Days | 4.5 | 4.5 | 4.8 |
| Adult Smoking | 13.8% | 15.0% | 15.0% |
| Adult Obesity | 32.7% | 36.4% | 34.0% |
| Air Pollution - Particulate Matter | 8.7 | 7.8 | 7.3 |
| Drinking water violation indicator | No | N/A | N/A |
| Diabetes Prevalence | 9.2% | 11.0% | 9.6% |
| Life Expectancy | 79.9 | 76.6 | 77.6 |
EPA testing found PFAS in water samples from the Town of Siler City. Results dated Feb 10, 2025 to Nov 12, 2025 include PFOS at 0.0046 to 0.0121 micrograms per liter and PFOA at 0.0041 to 0.0047 micrograms per liter.
Check with the utility that serves your address for its testing results.
EPA drinking water records on this page list 17 violations for the Town of Siler City.
Check your water bill to identify the utility serving your address. Ask that utility about current drinking water advisories.
We don't have air monitoring measurements for Siler City yet.
The radon data for Siler City covers Chatham County. EPA places this area in Zone 3, with a predicted average indoor radon screening level below 2 picocuries per liter.
No Superfund sites were returned for this city report.
This city report shows 3 brownfield sites: 1704 East 11th Street; 212 S Chatham Avenue; 304 S Chatham Avenue.
EPA Superfund recordsView on EPA ECHOView on EPA ECHOView on EPA ECHO
The county data for Siler City reports a life expectancy of 79.9 years in Chatham County, North Carolina.
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 Siler City reports 7,683 years of life lost to deaths before age 75 per 100,000 residents in Chatham County, North Carolina. 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 Siler City lists fine-particle pollution (PM2.5) at 8.7 micrograms per cubic meter in Chatham County, North Carolina.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.