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Tap water quality report

Hermann, MO

EPA monitoring detected 18 contaminants across the 2 water suppliers serving Hermann. 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
2,550
people served
18
contaminants found
Missouri rankings Lead in Missouri PFAS in Missouri

What was found in Hermann'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
Barium
233.6 µg/L 12%
of the EPA limit 2000 µg/L
Main supplier: HERMANN PWS · 2,500 people · 2018
2/2 SYR4
Fluoride
186 µg/L 4.7%
of the EPA limit 4000 µg/L
Main supplier: HERMANN PWS · 2,500 people · 2018
2/2 SYR4
Copper
134.65 µg/L 10%
of the EPA limit 1300 µg/L
Main supplier: HERMANN PWS · 2,500 people · 2018
2/2 SYR4
Total Haloacetic Acids (HAA5)
30.6 µg/L 51%
of the EPA limit 60 µg/L
Highest in the city: BLACK FOREST HOA INC NO 2 · 50 people · 2018
1/2 SYR4
Nitrate-Nitrite
26.25 µg/L 0.3%
of the EPA limit 10000 µg/L
Main supplier: HERMANN PWS · 2,500 people · 2019
1/2 SYR4
TTHM
5.34 µg/L 6.7%
of the EPA limit 80 µg/L
Main supplier: HERMANN PWS · 2,500 people · 2019
Highest in the city: 12.4 µg/L — BLACK FOREST HOA INC NO 2 · 50 people · 2018
2/2 SYR4
Dichloroacetic Acid
12.091 µg/L
No EPA limit set
Highest in the city: BLACK FOREST HOA INC NO 2 · 50 people · 2018
1/2 SYR4
Lead
11.35 µg/L 76%
of the EPA limit 15 µg/L
Main supplier: HERMANN PWS · 2,500 people · 2018
2/2 SYR4
Monobromoacetic Acid
11.3 µg/L
No EPA limit set
Highest in the city: BLACK FOREST HOA INC NO 2 · 50 people · 2018
1/2 SYR4
Chloroform
1.7885 µg/L
No EPA limit set
Main supplier: HERMANN PWS · 2,500 people · 2019
Highest in the city: 5.921 µg/L — BLACK FOREST HOA INC NO 2 · 50 people · 2018
2/2 SYR4
Trichloroacetic Acid
4.45 µg/L
No EPA limit set
Highest in the city: BLACK FOREST HOA INC NO 2 · 50 people · 2018
1/2 SYR4
Bromodichloromethane
1.6555 µg/L
No EPA limit set
Main supplier: HERMANN PWS · 2,500 people · 2019
Highest in the city: 4.1 µg/L — BLACK FOREST HOA INC NO 2 · 50 people · 2018
2/2 SYR4
Dibromoacetic Acid
2.28 µg/L
No EPA limit set
Highest in the city: BLACK FOREST HOA INC NO 2 · 50 people · 2018
1/2 SYR4
Dibromochloromethane
1.264 µg/L
No EPA limit set
Main supplier: HERMANN PWS · 2,500 people · 2019
Highest in the city: 2.15 µg/L — BLACK FOREST HOA INC NO 2 · 50 people · 2018
2/2 SYR4
Chromium
1.29 µg/L 1.3%
of the EPA limit 100 µg/L
Main supplier: HERMANN PWS · 2,500 people · 2018
2/2 SYR4
Mercury
0.5600 µg/L 28%
of the EPA limit 2 µg/L
Main supplier: HERMANN PWS · 2,500 people · 2018
1/2 SYR4
Bromoform
0.5300 µg/L
No EPA limit set
Main supplier: HERMANN PWS · 2,500 people · 2019
1/2 SYR4
Lead
0.0056 mg/L 37%
of the EPA limit 0.0150 mg/L
Main supplier: HERMANN PWS · 2,500 people · 2025
Highest in the city: 0.0084 mg/L — BLACK FOREST HOA INC NO 2 · 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 Hermann

SupplierPopulation served
HERMANN PWS 2,500
BLACK FOREST HOA INC NO 2 50

Frequently asked questions about Hermann tap water

Is Hermann tap water safe to drink?

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

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

What contaminants are in Hermann's water?

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