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Tap water quality report

Erin, TN

EPA monitoring detected 9 contaminants across the 1 water supplier serving Erin. 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.

1
water supplier
8,239
people served
9
contaminants found
Tennessee rankings Lead in Tennessee PFAS in Tennessee

What was found in Erin'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
1190 µg/L 12%
of the EPA limit 10000 µg/L
Main supplier: ERIN WATER DEPARTMENT · 8,239 people · 2019
1/1 SYR4
Fluoride
570 µg/L 14%
of the EPA limit 4000 µg/L
Main supplier: ERIN WATER DEPARTMENT · 8,239 people · 2014
1/1 SYR4
TTHM
89.94999999999999 µg/L 112%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: ERIN WATER DEPARTMENT · 8,239 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
72.61999999999999 µg/L 121%
of the EPA limit, at the 95th percentile of samples — 60 µg/L
Main supplier: ERIN WATER DEPARTMENT · 8,239 people · 2019
1/1 SYR4
Barium
21 µg/L 1.1%
of the EPA limit 2000 µg/L
Main supplier: ERIN WATER DEPARTMENT · 8,239 people · 2014
1/1 SYR4
Gross Alpha, Excl. Radon And U
2 pCi/L 13%
of the EPA limit 15 pCi/L
Main supplier: ERIN WATER DEPARTMENT · 8,239 people · 2015
1/1 SYR4
Atrazine
1.3176999999999999 µg/L 44%
of the EPA limit 3 µg/L
Main supplier: ERIN WATER DEPARTMENT · 8,239 people · 2019
1/1 SYR4
Pfba
0.0084 µg/L
No EPA limit set
Main supplier: ERIN WATER DEPARTMENT · 8,239 people · 2025
1/1 UCMR-5
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
Main supplier: ERIN WATER DEPARTMENT · 8,239 people · 2025
1/1 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 Erin

SupplierPopulation served
ERIN WATER DEPARTMENT 8,239

Frequently asked questions about Erin tap water

Is Erin tap water safe to drink?

EPA testing detected 9 contaminants in the water serving Erin. 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 Erin?

1 public water supplier report drinking-water monitoring for Erin, Tennessee to the EPA. Each is listed above with its population served.

What contaminants are in Erin's water?

The contaminants EPA monitoring detected in Erin include Nitrate, Fluoride, TTHM, Total Haloacetic Acids (HAA5), Barium. 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.