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Tap water quality report

Bangor, ME

EPA monitoring detected 21 contaminants across the 2 water suppliers serving Bangor. 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
27,481
people served
21
contaminants found
Maine rankings Lead in Maine PFAS in Maine

What was found in Bangor'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
160 µg/L 1.6%
of the EPA limit 10000 µg/L
Main supplier: BANGOR WATER DISTRICT · 27,298 people · 2019
Highest in the city: 1400 µg/L — STREAMSIDE PINES MOBILE HOME PARK · 183 people · 2019
2/2 SYR4
Fluoride
800 µg/L 20%
of the EPA limit 4000 µg/L
Main supplier: BANGOR WATER DISTRICT · 27,298 people · 2019
1/2 SYR4
Nitrate-Nitrite
158.5 µg/L 1.6%
of the EPA limit 10000 µg/L
Main supplier: BANGOR WATER DISTRICT · 27,298 people · 2019
Highest in the city: 639.5 µg/L — STREAMSIDE PINES MOBILE HOME PARK · 183 people · 2017
2/2 SYR4
Copper
190 µg/L 15%
of the EPA limit 1300 µg/L
Main supplier: BANGOR WATER DISTRICT · 27,298 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
38 µg/L 63%
of the EPA limit 60 µg/L
Main supplier: BANGOR WATER DISTRICT · 27,298 people · 2019
1/2 SYR4
Dichloroacetic Acid
35 µg/L
No EPA limit set
Main supplier: BANGOR WATER DISTRICT · 27,298 people · 2019
1/2 SYR4
TTHM
22 µg/L 28%
of the EPA limit 80 µg/L
Main supplier: BANGOR WATER DISTRICT · 27,298 people · 2019
1/2 SYR4
Chloroform
21.15 µg/L
No EPA limit set
Main supplier: BANGOR WATER DISTRICT · 27,298 people · 2019
1/2 SYR4
Lead
18.7 µg/L 125%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: BANGOR WATER DISTRICT · 27,298 people · 2019
2/2 SYR4
Barium
1.465 µg/L 0.1%
of the EPA limit 2000 µg/L
Main supplier: BANGOR WATER DISTRICT · 27,298 people · 2019
Highest in the city: 8.585 µg/L — STREAMSIDE PINES MOBILE HOME PARK · 183 people · 2017
2/2 SYR4
Monochloroacetic Acid
6 µg/L
No EPA limit set
Main supplier: BANGOR WATER DISTRICT · 27,298 people · 2019
1/2 SYR4
Trichloroacetic Acid
5.945 µg/L
No EPA limit set
Main supplier: BANGOR WATER DISTRICT · 27,298 people · 2019
1/2 SYR4
Bromate
5.7 µg/L 57%
of the EPA limit 10 µg/L
Main supplier: BANGOR WATER DISTRICT · 27,298 people · 2019
1/2 SYR4
Chromium
0.5400 µg/L 0.5%
of the EPA limit 100 µg/L
Main supplier: BANGOR WATER DISTRICT · 27,298 people · 2019
Highest in the city: 3.995 µg/L — STREAMSIDE PINES MOBILE HOME PARK · 183 people · 2017
2/2 SYR4
Bromodichloromethane
1.8 µg/L
No EPA limit set
Main supplier: BANGOR WATER DISTRICT · 27,298 people · 2019
1/2 SYR4
Monobromoacetic Acid
1.58 µg/L
No EPA limit set
Main supplier: BANGOR WATER DISTRICT · 27,298 people · 2019
1/2 SYR4
Combined Uranium
0.5470 µg/L 1.8%
of the EPA limit 30 µg/L
Main supplier: BANGOR WATER DISTRICT · 27,298 people · 2019
Highest in the city: 1.5 µg/L — STREAMSIDE PINES MOBILE HOME PARK · 183 people · 2017
2/2 SYR4
Arsenic
1.4 µg/L 14%
of the EPA limit 10 µg/L
Highest in the city: STREAMSIDE PINES MOBILE HOME PARK · 183 people · 2017
1/2 SYR4
Combined Radium (-226 And -228)
0.9100 pCi/L 18%
of the EPA limit 5 pCi/L
Highest in the city: STREAMSIDE PINES MOBILE HOME PARK · 183 people · 2017
1/2 SYR4
Antimony, Total
0.5600 µg/L 9.3%
of the EPA limit 6 µg/L
Main supplier: BANGOR WATER DISTRICT · 27,298 people · 2019
1/2 SYR4
Lead
0.0075 mg/L 50%
of the EPA limit 0.0150 mg/L
Main supplier: BANGOR WATER DISTRICT · 27,298 people · 2025
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 Bangor

SupplierPopulation served
BANGOR WATER DISTRICT 27,298
STREAMSIDE PINES MOBILE HOME PARK 183

Frequently asked questions about Bangor tap water

Is Bangor tap water safe to drink?

EPA testing detected 21 contaminants in the water serving Bangor. 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 Bangor?

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

What contaminants are in Bangor's water?

The contaminants EPA monitoring detected in Bangor include Nitrate, Fluoride, Nitrate-Nitrite, Copper, Total Haloacetic Acids (HAA5). 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.