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Tap water quality report

Smithville, TN

EPA monitoring detected 7 contaminants across the 3 water suppliers serving Smithville. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

3
water suppliers
25,936
people served
7
contaminants found
Tennessee rankings Lead in Tennessee PFAS in Tennessee

What was found in Smithville's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
461 µg/L 4.6%
of the EPA limit 10000 µg/L
Main supplier: DEKALB UTILITY DISTRICT #1 · 17,960 people · 2019
Highest in the city: 821 µg/L — SMITHVILLE WATER SYSTEM · 7,049 people · 2019
2/3 SYR4
TTHM
86.5 µg/L 108%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: DEKALB UTILITY DISTRICT #1 · 17,960 people · 2019
Highest in the city: 104.65 µg/L — DEKALB UTILITY DISTRICT #4 · 927 people · 2019
3/3 SYR4
Total Haloacetic Acids (HAA5)
74.125 µg/L 124%
of the EPA limit, at the 95th percentile of samples — 60 µg/L
Main supplier: DEKALB UTILITY DISTRICT #1 · 17,960 people · 2019
3/3 SYR4
Barium
22.99 µg/L 1.1%
of the EPA limit 2000 µg/L
Main supplier: DEKALB UTILITY DISTRICT #1 · 17,960 people · 2019
1/3 SYR4
Gross Alpha, Excl. Radon And U
1.7165 pCi/L 11%
of the EPA limit 15 pCi/L
Main supplier: DEKALB UTILITY DISTRICT #1 · 17,960 people · 2017
1/3 SYR4
Atrazine
0.3896 µg/L 13%
of the EPA limit 3 µg/L
Highest in the city: SMITHVILLE WATER SYSTEM · 7,049 people · 2019
1/3 SYR4
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
Main supplier: DEKALB UTILITY DISTRICT #1 · 17,960 people · 2025
Highest in the city: 0.0021 mg/L — DEKALB UTILITY DISTRICT #4 · 927 people · 2025
3/3 LCR
Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Smithville

SupplierPopulation served
DEKALB UTILITY DISTRICT #1 17,960
SMITHVILLE WATER SYSTEM 7,049
DEKALB UTILITY DISTRICT #4 927

Frequently asked questions about Smithville tap water

Is Smithville tap water safe to drink?

EPA testing detected 7 contaminants in the water serving Smithville. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Smithville?

3 public water suppliers report drinking-water monitoring for Smithville, Tennessee to the EPA. Each is listed above with its population served.

What contaminants are in Smithville's water?

The contaminants EPA monitoring detected in Smithville include Nitrate, TTHM, Total Haloacetic Acids (HAA5), Barium, Gross Alpha, Excl. Radon And U. The full list, with the level at the main supplier and the data source, is in the table above.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.