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Tap water quality report

Machiasport, ME

EPA monitoring detected 14 contaminants across the 1 water supplier serving Machiasport. 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
63
people served
14
contaminants found
Maine rankings Lead in Maine PFAS in Maine

What was found in Machiasport'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
Copper
409 µg/L 31%
of the EPA limit 1300 µg/L
Main supplier: DOWNEAST CORRECTIONAL FACILITY · 63 people · 2017
1/1 SYR4
Fluoride
300 µg/L 7.5%
of the EPA limit 4000 µg/L
Main supplier: DOWNEAST CORRECTIONAL FACILITY · 63 people · 2017
1/1 SYR4
Nitrate
220 µg/L 2.2%
of the EPA limit 10000 µg/L
Main supplier: DOWNEAST CORRECTIONAL FACILITY · 63 people · 2017
1/1 SYR4
Nitrate-Nitrite
219 µg/L 2.2%
of the EPA limit 10000 µg/L
Main supplier: DOWNEAST CORRECTIONAL FACILITY · 63 people · 2017
1/1 SYR4
Lead
13.1 µg/L 87%
of the EPA limit 15 µg/L
Main supplier: DOWNEAST CORRECTIONAL FACILITY · 63 people · 2017
1/1 SYR4
Arsenic
1.995 µg/L 20%
of the EPA limit 10 µg/L
Main supplier: DOWNEAST CORRECTIONAL FACILITY · 63 people · 2017
1/1 SYR4
Bromoform
1.4 µg/L
No EPA limit set
Main supplier: DOWNEAST CORRECTIONAL FACILITY · 63 people · 2017
1/1 SYR4
Combined Uranium
1.3 µg/L 4.3%
of the EPA limit 30 µg/L
Main supplier: DOWNEAST CORRECTIONAL FACILITY · 63 people · 2017
1/1 SYR4
Barium
1.195 µg/L 0.1%
of the EPA limit 2000 µg/L
Main supplier: DOWNEAST CORRECTIONAL FACILITY · 63 people · 2017
1/1 SYR4
Dibromochloromethane
1.1 µg/L
No EPA limit set
Main supplier: DOWNEAST CORRECTIONAL FACILITY · 63 people · 2017
1/1 SYR4
TTHM
1.1 µg/L 1.4%
of the EPA limit 80 µg/L
Main supplier: DOWNEAST CORRECTIONAL FACILITY · 63 people · 2017
1/1 SYR4
Chromium
1.095 µg/L 1.1%
of the EPA limit 100 µg/L
Main supplier: DOWNEAST CORRECTIONAL FACILITY · 63 people · 2017
1/1 SYR4
Trichloroethylene
0.5000 µg/L 10%
of the EPA limit 5 µg/L
Main supplier: DOWNEAST CORRECTIONAL FACILITY · 63 people · 2017
1/1 SYR4
Lead
0.0064 mg/L 43%
of the EPA limit 0.0150 mg/L
Main supplier: DOWNEAST CORRECTIONAL FACILITY · 63 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 Machiasport

SupplierPopulation served
DOWNEAST CORRECTIONAL FACILITY 63

Frequently asked questions about Machiasport tap water

Is Machiasport tap water safe to drink?

EPA testing detected 14 contaminants in the water serving Machiasport. 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 Machiasport?

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

What contaminants are in Machiasport's water?

The contaminants EPA monitoring detected in Machiasport include Copper, Fluoride, 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.