Tap Water Results

Is Brentwood, TN tap water safe?

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

Summary

No federal limits exceeded in EPA data for Metro Water Services.

5 public water systems serve parts of Brentwood. The largest, Metro Water Services, serves 789,969 people. Your water bill names your system.

Largest system

Metro Water Services

789,969 people · Surface water · EPA ID TN0000494

PFASHighest averageLimitStatus
PFOA
Not detected
–4 pptNot detected
PFOS
Not detected
–4 pptNot detected
PFHxS
Not detected
–10 pptNot detected
PFNA
Not detected
–10 pptNot detected
HFPO-DA (GenX)
Not detected
–10 pptNot 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: 0.8 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: 0

Full Metro Water Services 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.

Brentwood homes and lead pipes

22%
of homes built before 1980 (Tennessee 41%, US 50%)
1%
built before 1950 (Tennessee 10%)
10%
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. Metro Water Services publishes a service line inventory you can search by address. Look up your address. How to check your own line.

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

Other water systems serving Brentwood

How nearby cities compare

CityMain water systemPFASLead (90th pct.)
Franklin 7 mi
Franklin Water Dept
Franklin Water DeptNone above limits1 ppb
Nashville 12 mi
Metro Water Services
Metro Water ServicesNone above limits0.8 ppb
La Vergne 12 mi
Metro Water Services
Metro Water ServicesNone above limits0.8 ppb
Smyrna 14 mi
Smyrna Water System
Smyrna Water SystemNone above limits1 ppb
Spring Hill 19 mi
Spring Hill Water Dept
Spring Hill Water DeptNone above limits0.5 ppb
Mount Juliet 21 mi
Metro Water Services
Metro Water ServicesNone above limits0.8 ppb
Brentwood ZIP codes (1)
  • 37027

Questions

Is Brentwood tap water safe to drink?

Metro Water Services 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 Brentwood, TN?

5 public water systems serve parts of Brentwood. The largest is Metro Water Services (789,969 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.

Does Brentwood tap water have PFAS?

None detected above EPA's reporting limits. Metro Water Services 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 Brentwood homes have lead pipes?

Census estimates put 22% of Brentwood 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. Metro Water Services'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.