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Tap water quality report

Thurmont, MD

EPA monitoring detected 22 contaminants across the 1 water supplier serving Thurmont. 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
6,200
people served
22
contaminants found
Maryland rankings Lead in Maryland PFAS in Maryland

What was found in Thurmont'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
3600 µg/L 36%
of the EPA limit 10000 µg/L
Main supplier: TOWN OF THURMONT · 6,200 people · 2015
1/1 SYR4
Nitrate-Nitrite
3487.5 µg/L 35%
of the EPA limit 10000 µg/L
Main supplier: TOWN OF THURMONT · 6,200 people · 2019
1/1 SYR4
Fluoride
158 µg/L 4%
of the EPA limit 4000 µg/L
Main supplier: TOWN OF THURMONT · 6,200 people · 2018
1/1 SYR4
Barium
16.25 µg/L 0.8%
of the EPA limit 2000 µg/L
Main supplier: TOWN OF THURMONT · 6,200 people · 2018
1/1 SYR4
TTHM
12.74 µg/L 16%
of the EPA limit 80 µg/L
Main supplier: TOWN OF THURMONT · 6,200 people · 2019
1/1 SYR4
Gross Alpha, Excl. Radon And U
4.525 pCi/L 30%
of the EPA limit 15 pCi/L
Main supplier: TOWN OF THURMONT · 6,200 people · 2019
1/1 SYR4
Dibromochloromethane
4.353 µg/L
No EPA limit set
Main supplier: TOWN OF THURMONT · 6,200 people · 2019
1/1 SYR4
Bromodichloromethane
3.855 µg/L
No EPA limit set
Main supplier: TOWN OF THURMONT · 6,200 people · 2019
1/1 SYR4
1,2-Dichloroethane
3.331 µg/L 67%
of the EPA limit 5 µg/L
Main supplier: TOWN OF THURMONT · 6,200 people · 2019
1/1 SYR4
Beryllium, Total
3.1 µg/L 78%
of the EPA limit 4 µg/L
Main supplier: TOWN OF THURMONT · 6,200 people · 2018
1/1 SYR4
Chloroform
2.726 µg/L
No EPA limit set
Main supplier: TOWN OF THURMONT · 6,200 people · 2019
1/1 SYR4
Bromoform
2.05 µg/L
No EPA limit set
Main supplier: TOWN OF THURMONT · 6,200 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
1.44 µg/L 2.4%
of the EPA limit 60 µg/L
Main supplier: TOWN OF THURMONT · 6,200 people · 2019
1/1 SYR4
Dibromoacetic Acid
1.338 µg/L
No EPA limit set
Main supplier: TOWN OF THURMONT · 6,200 people · 2014
1/1 SYR4
Trichloroethylene
1.208 µg/L 24%
of the EPA limit 5 µg/L
Main supplier: TOWN OF THURMONT · 6,200 people · 2019
1/1 SYR4
Combined Radium (-226 And -228)
0.3000 pCi/L 6%
of the EPA limit 5 pCi/L
Main supplier: TOWN OF THURMONT · 6,200 people · 2015
1/1 SYR4
Mercury
0.1700 µg/L 8.5%
of the EPA limit 2 µg/L
Main supplier: TOWN OF THURMONT · 6,200 people · 2018
1/1 SYR4
PFOS
0.0480 µg/L
No EPA limit set
Main supplier: TOWN OF THURMONT · 6,200 people · 2025
1/1 UCMR-5
PFOA
0.0150 µg/L
No EPA limit set
Main supplier: TOWN OF THURMONT · 6,200 people · 2025
1/1 UCMR-5
PFHXS
0.0053 µg/L
No EPA limit set
Main supplier: TOWN OF THURMONT · 6,200 people · 2025
1/1 UCMR-5
PFBS
0.0043 µg/L
No EPA limit set
Main supplier: TOWN OF THURMONT · 6,200 people · 2025
1/1 UCMR-5
Lead
0.0040 mg/L 27%
of the EPA limit 0.0150 mg/L
Main supplier: TOWN OF THURMONT · 6,200 people · 2018
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 Thurmont

SupplierPopulation served
TOWN OF THURMONT 6,200

Frequently asked questions about Thurmont tap water

Is Thurmont tap water safe to drink?

EPA testing detected 22 contaminants in the water serving Thurmont. 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 Thurmont?

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

What contaminants are in Thurmont's water?

The contaminants EPA monitoring detected in Thurmont include Nitrate, Nitrate-Nitrite, Fluoride, Barium, TTHM. 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.