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Review government records associated with Tega Cay, South 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 Tega Cay, SC from EPA SDWIS.
Tega Cay City of (Sc4610008)
Active monitoring or reporting issue detected in EPA SDWIS.
Reviewed: active/open records as of Q1 2026
Purchased or imported water record · Serves 10,500 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 Nov 2024 to May 2025.
Drinking Water PFAS Monitoring
EPA UCMR5 samples public water systems. These results are separate from nearby PFAS cleanup or investigation-site records.
PFAS detections below EPA limits.
Nearby PFAS Investigation Sites
DoD records are nearby site investigations, not Tega Cay 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.
Torrence Branch-Lake Wylie
Reported: Nov 2026
Health-relevant causes: Pathogens, Polychlorinated Biphenyls (pcbs)
Affected uses: 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.
York 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.
Maintenance areas
Previously nonattainment; currently meeting the standard and monitored under an EPA maintenance plan.
Charlotte-Rock Hill
Ozone · 8-Hour Ozone (2008 Standard)
Classification: Marginal
Original designation: Jul 2012
Current design value: 0.068 ppm (2023-2025)
Historical designations under the revoked 1997 ozone standard
These records describe historical designations. EPA revoked the 1997 ozone standard on April 6, 2015.
Charlotte-Gastonia-Rock Hill Area
Historical standard: 0.08 ppm (8-hour)
Historical designation: Maintenance (NAAQS revoked) · Subpart 2/Moderate
Original designation: Jun 2004
Open data source: EPA final revocation ruleContinuing requirements have not been verified for this area.
Data from EPA Green Book
EPA annual monitor summaries describe past measurements. For current air quality, see AirNow.
45-091-8801 — Rock Hill, South Carolina
Annual mean: 0.041 Parts per million
Observation year: 2025
Annual mean: 6.7 Micrograms/cubic meter (LC)
Observation year: 2025
Equipment Dr — Charlotte, North Carolina
Annual mean: 24.0 Parts per billion
Observation year: 2025
Data from EPA AQS
Reviewed: source records as of Q4 2025
Reviewed: source query run Nov 2026
Reviewed: source query run Nov 2026
Release reports
Reported: Dec 2021
Data from EPA UST Finder
No MSHA mine or extraction site records shown for this report.
York County, SC
EPA Radon Zone Map (June 2024 release)
York County is EPA Radon Zone 2 (moderate potential). EPA defines Zone 2 counties as having predicted average indoor screening levels between 2 pCi/L and 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.
Special Flood Hazard Area — 1% annual chance of flooding (100-year floodplain) with base flood elevation.
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.
Nuclear Regulatory Commission licensed facilities. The Emergency Planning Zone extends 10 miles for plume exposure and 50 miles for the ingestion pathway.
Reported: Mar 2026
This city report includes a facility within the 50-mile ingestion pathway Emergency Planning Zone.
1 reactor · Operated by Duke Energy Carolinas, LLC
Reported: Mar 2026
This city report includes a facility within the 50-mile ingestion pathway Emergency Planning Zone.
1 reactor · Operated by Duke Energy Carolinas, LLC
Reviewed: 2000-present
Health outcomes from County Health Rankings. Values shown alongside state and national averages.
York County, South CarolinaPop. 294,248
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 | 8,020 | 10,318 | 7,972 |
| Poor or Fair Health | 14.1% | 16.1% | 14.2% |
| Poor Physical Health Days | 3.4 | 3.8 | 3.3 |
| Poor Mental Health Days | 4.9 | 5.4 | 4.8 |
| Adult Smoking | 14.0% | 16.3% | 15.0% |
| Adult Obesity | 33.6% | 36.4% | 34.0% |
| Air Pollution - Particulate Matter | 7.8 | 8.3 | 7.3 |
| Drinking water violation indicator | No | N/A | N/A |
| Diabetes Prevalence | 10.1% | 11.9% | 9.6% |
| Life Expectancy | 76.8 | 75.2 | 77.6 |
EPA testing found PFAS in water samples from Tega Cay City of (Sc4610008). Results dated Nov 19, 2024 to May 22, 2025 include PFPeA at 0.0031 to 0.0041 micrograms per liter and PFHxA at 0.0031 to 0.0038 micrograms per liter.
Check with the utility that serves your address for its testing results.
EPA drinking water records on this page list 5 violations for Tega Cay City of (Sc4610008), including 1 marked active.
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 Tega Cay.
The monitoring station at 45-091-8801, Rock Hill, South Carolina recorded an annual average of 0.041 Parts per million for ozone in 2025.
The monitoring station at 45-091-8801, Rock Hill, South Carolina recorded an annual average of 6.7 Micrograms/cubic meter (LC) for fine particles (PM2.5) in 2025.
The monitoring station at Equipment Dr, Charlotte, North Carolina recorded an annual average of 24 Parts per billion for nitrogen dioxide in 2025.
The radon data for Tega Cay covers York County. EPA places this area in Zone 2, with a predicted average indoor radon screening level of 2 to 4 picocuries per liter.
No Superfund or brownfield sites were returned for this city report.
The county data for Tega Cay reports a life expectancy of 76.8 years in York County, South 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 Tega Cay reports 8,020 years of life lost to deaths before age 75 per 100,000 residents in York County, South 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 Tega Cay lists fine-particle pollution (PM2.5) at 7.8 micrograms per cubic meter in York County, South Carolina.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.