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Tap water quality report

Damariscotta, ME

EPA monitoring detected 18 contaminants across the 2 water suppliers serving Damariscotta. 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
2,193
people served
18
contaminants found
Maine rankings Lead in Maine PFAS in Maine

What was found in Damariscotta'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
930 µg/L 23%
of the EPA limit 4000 µg/L
Main supplier: GREAT SALT BAY SANITARY DISTRICT · 2,143 people · 2019
2/2 SYR4
Nitrate
110 µg/L 1.1%
of the EPA limit 10000 µg/L
Highest in the city: PINES MOBILE HOME PARK LLC · 50 people · 2019
1/2 SYR4
Nitrate-Nitrite
99 µg/L 1%
of the EPA limit 10000 µg/L
Highest in the city: PINES MOBILE HOME PARK LLC · 50 people · 2018
1/2 SYR4
Chloroform
91.4 µg/L
No EPA limit set
Main supplier: GREAT SALT BAY SANITARY DISTRICT · 2,143 people · 2018
1/2 SYR4
Copper
70.95 µg/L 5.5%
of the EPA limit 1300 µg/L
Main supplier: GREAT SALT BAY SANITARY DISTRICT · 2,143 people · 2019
2/2 SYR4
TTHM
62.37 µg/L 78%
of the EPA limit 80 µg/L
Main supplier: GREAT SALT BAY SANITARY DISTRICT · 2,143 people · 2019
1/2 SYR4
Total Haloacetic Acids (HAA5)
44.7 µg/L 75%
of the EPA limit 60 µg/L
Main supplier: GREAT SALT BAY SANITARY DISTRICT · 2,143 people · 2019
1/2 SYR4
Lead
19.1 µg/L 127%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: GREAT SALT BAY SANITARY DISTRICT · 2,143 people · 2019
2/2 SYR4
Gross Alpha, Excl. Radon And U
15.02 pCi/L 100%
of the EPA limit, at the 95th percentile of samples — 15 pCi/L
Highest in the city: PINES MOBILE HOME PARK LLC · 50 people · 2017
1/2 SYR4
Combined Uranium
14.085 µg/L 47%
of the EPA limit 30 µg/L
Highest in the city: PINES MOBILE HOME PARK LLC · 50 people · 2017
1/2 SYR4
Bromodichloromethane
9.76 µg/L
No EPA limit set
Main supplier: GREAT SALT BAY SANITARY DISTRICT · 2,143 people · 2018
1/2 SYR4
Barium
2.49 µg/L 0.1%
of the EPA limit 2000 µg/L
Main supplier: GREAT SALT BAY SANITARY DISTRICT · 2,143 people · 2019
Highest in the city: 7.88 µg/L — PINES MOBILE HOME PARK LLC · 50 people · 2018
2/2 SYR4
Chromium
2.255 µg/L 2.3%
of the EPA limit 100 µg/L
Highest in the city: PINES MOBILE HOME PARK LLC · 50 people · 2018
1/2 SYR4
Combined Radium (-226 And -228)
2.14 pCi/L 43%
of the EPA limit 5 pCi/L
Highest in the city: PINES MOBILE HOME PARK LLC · 50 people · 2019
1/2 SYR4
Dibromochloromethane
1.9 µg/L
No EPA limit set
Main supplier: GREAT SALT BAY SANITARY DISTRICT · 2,143 people · 2018
1/2 SYR4
Toluene
1.3 µg/L 0.1%
of the EPA limit 1000 µg/L
Main supplier: GREAT SALT BAY SANITARY DISTRICT · 2,143 people · 2018
1/2 SYR4
Arsenic
0.6200 µg/L 6.2%
of the EPA limit 10 µg/L
Highest in the city: PINES MOBILE HOME PARK LLC · 50 people · 2018
1/2 SYR4
Lead
0.0012 mg/L 8%
of the EPA limit 0.0150 mg/L
Main supplier: GREAT SALT BAY SANITARY DISTRICT · 2,143 people · 2025
Highest in the city: 0.0024 mg/L — PINES MOBILE HOME PARK LLC · 50 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 Damariscotta

SupplierPopulation served
GREAT SALT BAY SANITARY DISTRICT 2,143
PINES MOBILE HOME PARK LLC 50

Frequently asked questions about Damariscotta tap water

Is Damariscotta tap water safe to drink?

EPA testing detected 18 contaminants in the water serving Damariscotta. 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 Damariscotta?

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

What contaminants are in Damariscotta's water?

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