Is Middlebury, VT Tap Water Safe? Quality & Contaminants

What was found in Middlebury'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.

Contaminant	Level vs EPA limit	Suppliers	Source
Nitrate-Nitrite	1670 µg/L 17% of the EPA limit 10000 µg/L Main supplier: MIDDLEBURY WATER DEPT · 9,379 people · 2013	1/2	SYR4
Nitrate	1100 µg/L 11% of the EPA limit 10000 µg/L Main supplier: MIDDLEBURY WATER DEPT · 9,379 people · 2019	1/2	SYR4
Fluoride	900 µg/L 23% of the EPA limit 4000 µg/L Main supplier: MIDDLEBURY WATER DEPT · 9,379 people · 2019	1/2	SYR4
Copper	261.5 µg/L 20% of the EPA limit 1300 µg/L Main supplier: MIDDLEBURY WATER DEPT · 9,379 people · 2017	2/2	SYR4
Barium	38.5 µg/L 1.9% of the EPA limit 2000 µg/L Highest in the city: EAST MIDDLEBURY FD 1 · 642 people · 2017	1/2	SYR4
Lead	4.5 µg/L 30% of the EPA limit 15 µg/L Main supplier: MIDDLEBURY WATER DEPT · 9,379 people · 2017 Highest in the city: 5.34 µg/L — EAST MIDDLEBURY FD 1 · 642 people · 2019	2/2	SYR4
TTHM	4.77 µg/L 6% of the EPA limit 80 µg/L Main supplier: MIDDLEBURY WATER DEPT · 9,379 people · 2019	1/2	SYR4
Styrene	3.03 µg/L 3% of the EPA limit 100 µg/L Highest in the city: EAST MIDDLEBURY FD 1 · 642 people · 2019	1/2	SYR4
Combined Uranium	2 µg/L 6.7% of the EPA limit 30 µg/L Highest in the city: EAST MIDDLEBURY FD 1 · 642 people · 2017	1/2	SYR4
Dibromochloromethane	1.97 µg/L No EPA limit set Main supplier: MIDDLEBURY WATER DEPT · 9,379 people · 2019	1/2	SYR4
Bromoform	1.38 µg/L No EPA limit set Main supplier: MIDDLEBURY WATER DEPT · 9,379 people · 2019	1/2	SYR4
1,1,1-Trichloroethane	1.3 µg/L 0.7% of the EPA limit 200 µg/L Highest in the city: EAST MIDDLEBURY FD 1 · 642 people · 2019	1/2	SYR4
Tetrachloroethylene	1.2 µg/L 24% of the EPA limit 5 µg/L Highest in the city: EAST MIDDLEBURY FD 1 · 642 people · 2019	1/2	SYR4
Bromodichloromethane	1.15 µg/L No EPA limit set Main supplier: MIDDLEBURY WATER DEPT · 9,379 people · 2019	1/2	SYR4
Combined Radium (-226 And -228)	1.00675 pCi/L 20% of the EPA limit 5 pCi/L Main supplier: MIDDLEBURY WATER DEPT · 9,379 people · 2017	2/2	SYR4
Chloroform	0.5000 µg/L No EPA limit set Main supplier: MIDDLEBURY WATER DEPT · 9,379 people · 2019 Highest in the city: 1 µg/L — EAST MIDDLEBURY FD 1 · 642 people · 2019	2/2	SYR4
Dibromoacetic Acid	1 µg/L No EPA limit set Main supplier: MIDDLEBURY WATER DEPT · 9,379 people · 2019	1/2	SYR4
Trichloroacetic Acid	1 µg/L No EPA limit set Main supplier: MIDDLEBURY WATER DEPT · 9,379 people · 2019	1/2	SYR4
Toluene	0.8000 µg/L 0.1% of the EPA limit 1000 µg/L Highest in the city: EAST MIDDLEBURY FD 1 · 642 people · 2019	1/2	SYR4
Lead	0.0086 mg/L 57% of the EPA limit 0.0150 mg/L Main supplier: MIDDLEBURY WATER DEPT · 9,379 people · 2023	2/2	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 Middlebury

Supplier	Population served
MIDDLEBURY WATER DEPT	9,379
EAST MIDDLEBURY FD 1	642

Frequently asked questions about Middlebury tap water

Is Middlebury tap water safe to drink?

EPA testing detected 20 contaminants in the water serving Middlebury. 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 Middlebury?

2 public water suppliers report drinking-water monitoring for Middlebury, Vermont to the EPA. Each is listed above with its population served.

What contaminants are in Middlebury's water?

The contaminants EPA monitoring detected in Middlebury include Nitrate-Nitrite, Nitrate, Fluoride, Copper, 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.