Record-only indicator: C
Not a safety rating. Missing or old measurements can produce a high score.
Coverage: 12/12 mapped systems have a dated lead result; 0/12 have copper results; 2/12 have UCMR monitoring.
| Contaminant | Reported value or bound | Historical comparison value | Interpretation | Status |
|---|---|---|---|---|
| Lead |
55.0 ppbPeriod end: 12/31/1993
|
15 ppb | Largest reported value or bound among mapped systems; not necessarily the largest actual concentration. | Above comparison value |
UCMR5 occurrence results are screening information, not a finding of regulatory compliance or noncompliance. PFAS rules and compliance dates are evolving.
| Compound | Level | EPA MCL | Interpretation | Status |
|---|---|---|---|---|
| PFPeA | 4.8 ppt | No standard | — | No federal MCL shown |
| PFHxA | 4.4 ppt | No standard | 400 ppt | No federal MCL shown |
Public-record summary
Record-only indicator — incomplete or old records can produce a high score. A score of 100 is not a safety finding. Coverage: 12/12 mapped systems have a dated lead result; 0/12 have copper results; 2/12 have UCMR monitoring. Tap water quality in Fort Mill, South Carolina (29708) receives an record-only indicator of C (Mixed record-based signals) with a score of 68 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 20 points below the South Carolina state average of 88. The area is served by 12 water systems providing water to approximately 30,225 people, using surface water and groundwater sources. Testing has found elevated levels of Lead that warrant attention. PFAS testing detected 2 compounds, all below the EPA final MCL values used for comparison. Over the past 5 years, water systems here have accumulated 64 violations, including 6 health-based violations.
Grade C summarizes the records available to this model, not household safety. Missing, bounded or old measurements can produce a high score, including 100. Review coverage, dates and the current utility report before interpreting this indicator.
Health Information
Lead is a toxic metal that can leach from aging pipes and plumbing fixtures.
Even low levels of lead exposure can cause developmental delays in children, kidney damage, and cardiovascular effects in adults. The EPA action level is 15 ppb, but health experts recommend no safe level of lead in drinking water.
Lead enters water primarily through corrosion of lead service lines, lead solder, and brass fixtures — especially in homes built before 1986.
If lead is detected above 1 ppb, consider using a certified lead-removal filter (NSF/ANSI 53) for drinking and cooking water. Run cold water for 30 seconds before use if water has been sitting in pipes.
Common Questions
The record-only indicator is C (68/100). It cannot determine whether your tap water is safe. Missing, bounded or old measurements can produce a high score. Check the coverage and sampling dates below and your utility's current notices.
ZIP code 29708 is served by 12 water systems using surface water, groundwater sources, providing water to approximately 30,225 people. Multiple source types mean your water may come from a blend of surface and underground sources.
The largest reported lead value or bound is 55.0 ppb, for the sampling period ending 12/31/1993. This is a system-level 90th-percentile record, not a measurement at your tap. Compare the sampling date and original utility report before interpreting it.
2 PFAS compounds were detected in water serving Fort Mill, South Carolina, with no result above the individual comparison values shown here; some compounds have no individual federal MCL. This comparison is informational: federal compliance timelines and the status of some PFAS standards are still evolving. Activated carbon or reverse osmosis filters can reduce some PFAS when appropriately certified and maintained.
Water systems serving Fort Mill, South Carolina have received 64 violations in the last 5 years, including 6 health-based violations. Violations can range from paperwork issues (monitoring & reporting) to serious health-based violations where contaminant levels exceeded safe limits. Review the violation details above for specifics.
This public-record indicator cannot select household treatment. Confirm your supplier, current utility report and tap-testing results first; match any treatment to a certified contaminant-reduction claim and follow its maintenance instructions.
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