Is Maryville, TN tap water safe?

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

No federal limits exceeded in EPA data for South Blount Utility District.

3 public water systems serve parts of Maryville. The largest, South Blount Utility District, serves 53,864 people. Your water bill names your system.

Largest system

South Blount Utility District

53,864 people · Surface water · EPA ID TN0000643

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: 4.01 ppb at the 90th percentile (Dec 2025, and 9 in 10 homes sampled were at or below it) Below action level
Health-based violations since 2016: 1

Full South Blount Utility District results

Across Tennessee, 17 of 275 water systems EPA tested had PFAS above a 2024 federal limit, and 0 systems were above the lead action level in results from the last five years. Tennessee results.

Maryville homes and lead pipes

44%

of homes built before 1980 (Tennessee 41%, US 50%)

14%

built before 1950 (Tennessee 10%)

33%

of households rent (Tennessee 33%)

Lead service lines and lead solder were allowed until 1986, so homes from before then are the ones to check. Renting? Ask your landlord what the service line is made of, because it's their pipe to replace. How to check your own line.

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

Other water systems serving Maryville

City of Maryville Water & Sewer Dept
52,105 people · Surface water · Tennessee · lists this city
No PFAS above limits
Alcoa Water System
35,238 people · Surface water · Tennessee · lists this city
Haloacetic acids (HAA5) violation

How nearby cities compare

City	Main water system	PFAS	Lead (90th pct.)
Knoxville 16 mi Knoxville Utilities Board – KUB	Knoxville Utilities Board – KUB	None above limits	0.6 ppb
Oak Ridge 23 mi Oak Ridge Dept of Public Works	Oak Ridge Dept of Public Works	None above limits	2.91 ppb
Morristown 49 mi Morristown Utilities Commission	Morristown Utilities Commission	None above limits	2.7 ppb
Cleveland 63 mi Cleveland Utilities	Cleveland Utilities	None above limits	1 ppb
Chattanooga 85 mi Tennessee American Water	Tennessee American Water	None above limits	1 ppb
Cookeville 90 mi Cookeville Water Dept	Cookeville Water Dept	None above limits	1 ppb

Questions

Is Maryville tap water safe to drink?

South Blount Utility District had 1 health-based violation 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 Maryville, TN?

3 public water systems serve parts of Maryville. The largest is South Blount Utility District (53,864 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.

Does Maryville tap water have PFAS?

None detected above EPA's reporting limits. South Blount Utility District had no PFAS detected in EPA's 2023–2025 testing. "Not detected" means below the reporting limit (about 2 to 20 ppt), not proven zero.

Do Maryville homes have lead pipes?

Census estimates put 44% of Maryville homes as built before 1980 (Tennessee: 41%). Lead service lines and lead solder were allowed until 1986, so older homes are more likely to have them. South Blount Utility District'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.