We read 10 results from Smyrna Water System’s 2025 water quality report. No results over a legal limit; 2 above a health goal or guideline.
Serves about 60,876 people · Water system ID TN0000639 · Read the district’s 2025 report (opens in a new tab)
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Results from the 2025 report
Each number is copied from the district’s report and links to the page it’s printed on. Where the report lists several plants, wells or purchased water, the highest is shown.
| Contaminant | Result | Health goal | Legal limit | What it means |
|---|---|---|---|---|
| Lead90th percentile of homes tested · listed as a violation in the report · sampled 2023 · Customer taps · 2025 report, page 6 | 1.02 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal5.1x the health goal |
| PFOA (a PFAS)average · range 5.8 to 5.8 · Entry point (UCMR5) · 2025 report, page 7 | 2.6 ppt | 0.007 ppt | 4 ppt from 2029 | Above the health goal371x the health goal |
| Chlorinehighest running annual average · range 0.23 to 2.42 · listed as a violation in the report · Distribution system · 2025 report, page 6 | 1.53 ppm | None set | 4 ppm | Below the legal limit |
| Copper90th percentile of homes tested · listed as a violation in the report · sampled 2023 · Customer taps · 2025 report, page 6 | 0.05 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 4.2 to 44.6 · listed as a violation in the report · Distribution system (Site Stage 1-3) · 2025 report, page 6 | 27.7 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 9.83 to 58.5 · listed as a violation in the report · Distribution system (Site SMP-1-3) · 2025 report, page 6 | 47.1 ppb | None set | 80 ppb | Below the legal limit |
| Fluorideaverage · range 0.42 to 0.74 · listed as a violation in the report · Treatment plant · 2025 report, page 6 | 0.57 ppm | 1 ppm | 4 ppm | Below the health goal |
| Turbidity (cloudiness)highest measured · range 0.02 to 0.12 · listed as a violation in the report · Treatment plant · 2025 report, page 6 | 0.12 NTU | None set | 1 NTU | Below the legal limit |
| PFBS (a PFAS)average · range 23 to 23 · Entry point (UCMR5) · 2025 report, page 7 | 10.1 ppt | None set | None | No health limit |
| Sodiumsingle sample · listed as a violation in the report · Treatment plant · 2025 report, page 6 | 8.18 ppm | None set | None | No health limit |
Utility results describe the whole system, measured where water enters the pipes, not your tap. Your home’s plumbing can add lead or copper.
EPA testing for PFAS and lithium
EPA’s own nationwide testing (UCMR 5) found these in Smyrna Water System’s water between Jan 2023 and Oct 2023. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- PFOA5.8 pptFound in 2 of 4 samples · highest resultAbove the federal limit that takes effect in 2029 (4 ppt)
- PFBS23 pptFound in 3 of 4 samples · highest resultNo federal limit in force for this one
Source: EPA UCMR 5 occurrence data. The highest single result is shown; one high sample doesn’t mean every glass is that high.
What you can do
Nothing here is an emergency notice: if the district has a violation, it must tell customers directly. If you’d like to lower these at your tap, these are the treatments that remove them, and the catalog shows the models certified for each. Ranking is by certified removal; commissions never change the order.
Lead
Found: Lead
What removes it: Certified carbon block or RO.
PFAS ("forever chemicals")
Found: PFOA (a PFAS), PFOA (EPA testing)
What removes it: Reverse osmosis.
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