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Tap water quality report

Machias, ME

EPA monitoring detected 11 contaminants across the 2 water suppliers serving Machias. 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.

2
water suppliers
1,479
people served
11
contaminants found
Maine rankings Lead in Maine PFAS in Maine

What was found in Machias'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
Fluoride
900 µg/L 23%
of the EPA limit 4000 µg/L
Main supplier: MACHIAS WATER COMPANY · 1,390 people · 2019
Highest in the city: 2700 µg/L — MACHIAS TRAILER PARK · 89 people · 2018
2/2 SYR4
Copper
344.5 µg/L 27%
of the EPA limit 1300 µg/L
Main supplier: MACHIAS WATER COMPANY · 1,390 people · 2018
2/2 SYR4
Nitrate
230 µg/L 2.3%
of the EPA limit 10000 µg/L
Main supplier: MACHIAS WATER COMPANY · 1,390 people · 2019
2/2 SYR4
Nitrate-Nitrite
209 µg/L 2.1%
of the EPA limit 10000 µg/L
Main supplier: MACHIAS WATER COMPANY · 1,390 people · 2017
2/2 SYR4
Lead
3.4 µg/L 23%
of the EPA limit 15 µg/L
Main supplier: MACHIAS WATER COMPANY · 1,390 people · 2018
2/2 SYR4
Combined Uranium
1.595 µg/L 5.3%
of the EPA limit 30 µg/L
Highest in the city: MACHIAS TRAILER PARK · 89 people · 2016
1/2 SYR4
Barium
1.485 µg/L 0.1%
of the EPA limit 2000 µg/L
Main supplier: MACHIAS WATER COMPANY · 1,390 people · 2017
1/2 SYR4
Arsenic
1.095 µg/L 11%
of the EPA limit 10 µg/L
Main supplier: MACHIAS WATER COMPANY · 1,390 people · 2017
Highest in the city: 1.4 µg/L — MACHIAS TRAILER PARK · 89 people · 2018
2/2 SYR4
Chromium
0.8660 µg/L 0.9%
of the EPA limit 100 µg/L
Main supplier: MACHIAS WATER COMPANY · 1,390 people · 2017
Highest in the city: 1.37 µg/L — MACHIAS TRAILER PARK · 89 people · 2018
2/2 SYR4
Mercury
0.0997 µg/L 5%
of the EPA limit 2 µg/L
Highest in the city: MACHIAS TRAILER PARK · 89 people · 2018
1/2 SYR4
Lead
0.0024 mg/L 16%
of the EPA limit 0.0150 mg/L
Main supplier: MACHIAS WATER COMPANY · 1,390 people · 2024
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 Machias

SupplierPopulation served
MACHIAS WATER COMPANY 1,390
MACHIAS TRAILER PARK 89

Frequently asked questions about Machias tap water

Is Machias tap water safe to drink?

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

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

What contaminants are in Machias's water?

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