Is Fort Mill, SC tap water safe?

Data: U.S. EPA · How we read the data · How we check it

No federal limits exceeded in EPA data for Town of Fort Mill. 2 PFAS were detected below the limits.

6 public water systems serve parts of Fort Mill. The largest, Town of Fort Mill, serves 25,000 people. Your water bill names your system.

Largest system

Town of Fort Mill

25,000 people · Purchased surface water · EPA ID SC4610003

Buys treated water from City of Rock Hill.

PFAS	Highest average	Limit	Status
PFOA Not detected	–	4 ppt	Not detected
PFOS Not detected	–	4 ppt	Not detected
PFHxS Not detected	–	10 ppt	Not detected
PFNA Not detected	–	10 ppt	Not detected
HFPO-DA (GenX) Not detected	–	10 ppt	Not detected

ppt = parts per trillion. "Highest average" is the highest average at any of the system's entry points, the way EPA compares results with the limits.

Lead: 0 ppb at the 90th percentile (Dec 2024, and 9 in 10 homes sampled were at or below it) Below action level
Health-based violations since 2016: 0

Across South Carolina, 53 of 163 water systems EPA tested had PFAS above a 2024 federal limit, and 3 systems were above the lead action level in results from the last five years. South Carolina results.

Fort Mill homes and lead pipes

13%

of homes built before 1980 (South Carolina 33%, US 50%)

built before 1950 (South Carolina 6%)

17%

of households rent (South Carolina 28%)

Lead service lines and lead solder were allowed until 1986, so homes from before then are the ones to check. How to check your own line.

Housing: Census American Community Survey 2020–2024 5-year estimates for Fort Mill town (tables B25034, B25003). Estimates for small places have a margin of error.

Other water systems serving Fort Mill

Riverview Rural Cws Water System
2,200 people · Purchased surface water · South Carolina · lists this city
Not in EPA's PFAS sampleAlso: 1 health-based violation since 2016
BGWC Foxwood
575 people · Purchased surface water · South Carolina · lists this city
Not in EPA's PFAS sample
Twin Lakes Estates Water System
550 people · Purchased surface water · South Carolina · lists this city
Not in EPA's PFAS sample
Fern Forest MHP
99 people · Groundwater · South Carolina · lists this city
Not in EPA's PFAS sample
Whitley Estates Water System
93 people · Groundwater · South Carolina · lists this city
Not in EPA's PFAS sample

How nearby cities compare

City	Main water system	PFAS	Lead (90th pct.)
Rock Hill 6 mi City of Rock Hill	City of Rock Hill	None above limits	2 ppb
Spartanburg 56 mi Spartanburg Water System	Spartanburg Water System	None above limits	0 ppb
Columbia 67 mi City of Columbia	City of Columbia	Above limit	5 ppb
Lexington 72 mi Joint Municipal WSC	Joint Municipal WSC	Above limit	4 ppb
Greer 74 mi Greer Commission of Public Works	Greer Commission of Public Works	None above limits	0 ppb
Simpsonville 77 mi Greenville Water	Greenville Water	None above limits	0 ppb

Fort Mill ZIP codes (1)

29715

Questions

Is Fort Mill tap water safe to drink?

Town of Fort Mill has had no health-based violations since 2016. Utility data can't show lead from your own pipes: if your home was built before 1986, test your tap. Your utility's annual Consumer Confidence Report is the official summary.

Who supplies water in Fort Mill, SC?

6 public water systems serve parts of Fort Mill. The largest is Town of Fort Mill (25,000 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.

Does Fort Mill tap water have PFAS?

Town of Fort Mill had 2 PFAS detected at least once in EPA's 2023–2025 testing, all with averages below the federal limits.

Do Fort Mill homes have lead pipes?

Census estimates put 13% of Fort Mill homes as built before 1980 (South Carolina: 33%). Lead service lines and lead solder were allowed until 1986, so older homes are more likely to have them. Town of Fort Mill's service line inventory says what your line is made of. The only way to know for your home is to check the line where it enters the house and test your tap.

Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.