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Tap water quality report

Chelsea, VT

EPA monitoring detected 11 contaminants across the 3 water suppliers serving Chelsea. 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
562
people served
11
contaminants found
Vermont rankings Lead in Vermont PFAS in Vermont

What was found in Chelsea'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
500 µg/L 5%
of the EPA limit 10000 µg/L
Main supplier: CHELSEA WATER SYSTEM · 450 people · 2019
1/3 SYR4
Fluoride
130 µg/L 3.3%
of the EPA limit 4000 µg/L
Main supplier: CHELSEA WATER SYSTEM · 450 people · 2018
Highest in the city: 395.5 µg/L — CHELSEA ELDERLY HOUSING · 68 people · 2017
2/3 SYR4
Copper
213 µg/L 16%
of the EPA limit 1300 µg/L
Main supplier: CHELSEA WATER SYSTEM · 450 people · 2018
3/3 SYR4
Barium
21 µg/L 1.1%
of the EPA limit 2000 µg/L
Main supplier: CHELSEA WATER SYSTEM · 450 people · 2018
Highest in the city: 30 µg/L — CHELSEA FAMILY HOUSING · 44 people · 2017
2/3 SYR4
Lead
5.235 µg/L 35%
of the EPA limit 15 µg/L
Main supplier: CHELSEA WATER SYSTEM · 450 people · 2018
3/3 SYR4
TTHM
3 µg/L 3.8%
of the EPA limit 80 µg/L
Highest in the city: CHELSEA FAMILY HOUSING · 44 people · 2018
1/3 SYR4
Chloroform
2 µg/L
No EPA limit set
Highest in the city: CHELSEA FAMILY HOUSING · 44 people · 2018
1/3 SYR4
Bromodichloromethane
1 µg/L
No EPA limit set
Highest in the city: CHELSEA FAMILY HOUSING · 44 people · 2018
1/3 SYR4
Dichloroacetic Acid
1 µg/L
No EPA limit set
Highest in the city: CHELSEA FAMILY HOUSING · 44 people · 2018
1/3 SYR4
Combined Radium (-226 And -228)
0.3600 pCi/L 7.2%
of the EPA limit 5 pCi/L
Highest in the city: CHELSEA ELDERLY HOUSING · 68 people · 2014
2/3 SYR4
Lead
0.0056 mg/L 37%
of the EPA limit 0.0150 mg/L
Main supplier: CHELSEA WATER SYSTEM · 450 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 Chelsea

SupplierPopulation served
CHELSEA WATER SYSTEM 450
CHELSEA ELDERLY HOUSING 68
CHELSEA FAMILY HOUSING 44

Frequently asked questions about Chelsea tap water

Is Chelsea tap water safe to drink?

EPA testing detected 11 contaminants in the water serving Chelsea. 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 Chelsea?

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

What contaminants are in Chelsea's water?

The contaminants EPA monitoring detected in Chelsea include Nitrate, Fluoride, Copper, Barium, Lead. 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.