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Tap water quality report

Maryville, TN

EPA monitoring detected 6 contaminants across the 3 water suppliers serving Maryville. 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
138,237
people served
6
contaminants found
Tennessee rankings Lead in Tennessee PFAS in Tennessee

What was found in Maryville'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
123 µg/L 1.2%
of the EPA limit 10000 µg/L
Main supplier: SOUTH BLOUNT UTILITY DISTRICT · 53,864 people · 2019
Highest in the city: 467 µg/L — ALCOA WATER SYSTEM · 35,238 people · 2019
3/3 SYR4
TTHM
69.58 µg/L 87%
of the EPA limit 80 µg/L
Main supplier: SOUTH BLOUNT UTILITY DISTRICT · 53,864 people · 2019
Highest in the city: 84.075 µg/L — ALCOA WATER SYSTEM · 35,238 people · 2019
3/3 SYR4
Total Haloacetic Acids (HAA5)
55.48 µg/L 92%
of the EPA limit 60 µg/L
Main supplier: SOUTH BLOUNT UTILITY DISTRICT · 53,864 people · 2019
Highest in the city: 79.39999999999999 µg/L — ALCOA WATER SYSTEM · 35,238 people · 2019
3/3 SYR4
Chlorobenzene
1.02 µg/L 1%
of the EPA limit 100 µg/L
Main supplier: SOUTH BLOUNT UTILITY DISTRICT · 53,864 people · 2019
1/3 SYR4
Gross Alpha, Excl. Radon And U
0.6960 pCi/L 4.6%
of the EPA limit 15 pCi/L
Main supplier: SOUTH BLOUNT UTILITY DISTRICT · 53,864 people · 2018
1/3 SYR4
Lead
0.0040 mg/L 27%
of the EPA limit 0.0150 mg/L
Main supplier: SOUTH BLOUNT UTILITY DISTRICT · 53,864 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 Maryville

SupplierPopulation served
SOUTH BLOUNT UTILITY DISTRICT 53,864
CITY OF MARYVILLE W&S DEPT 49,135
ALCOA WATER SYSTEM 35,238

Frequently asked questions about Maryville tap water

Is Maryville tap water safe to drink?

EPA testing detected 6 contaminants in the water serving Maryville. 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 Maryville?

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

What contaminants are in Maryville's water?

The contaminants EPA monitoring detected in Maryville include Nitrate, TTHM, Total Haloacetic Acids (HAA5), Chlorobenzene, 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.