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Tap water quality report

Langdon, ND

EPA monitoring detected 13 contaminants across the 2 water suppliers serving Langdon. 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
4,328
people served
13
contaminants found
North Dakota rankings Lead in North Dakota PFAS in North Dakota

What was found in Langdon'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
526.95 µg/L 41%
of the EPA limit 1300 µg/L
Main supplier: NORTHEAST RWD-LANGDON BRANCH · 2,450 people · 2019
2/2 SYR4
TTHM
53.6425 µg/L 67%
of the EPA limit 80 µg/L
Main supplier: NORTHEAST RWD-LANGDON BRANCH · 2,450 people · 2019
Highest in the city: 75.93 µg/L — LANGDON CITY OF · 1,878 people · 2019
2/2 SYR4
Chloroform
39.3675 µg/L
No EPA limit set
Main supplier: NORTHEAST RWD-LANGDON BRANCH · 2,450 people · 2019
Highest in the city: 57.365 µg/L — LANGDON CITY OF · 1,878 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
29.07 µg/L 48%
of the EPA limit 60 µg/L
Main supplier: NORTHEAST RWD-LANGDON BRANCH · 2,450 people · 2019
Highest in the city: 44.3955 µg/L — LANGDON CITY OF · 1,878 people · 2019
2/2 SYR4
Dichloroacetic Acid
23.55 µg/L
No EPA limit set
Main supplier: NORTHEAST RWD-LANGDON BRANCH · 2,450 people · 2019
Highest in the city: 32.44 µg/L — LANGDON CITY OF · 1,878 people · 2019
2/2 SYR4
Bromodichloromethane
12.849 µg/L
No EPA limit set
Main supplier: NORTHEAST RWD-LANGDON BRANCH · 2,450 people · 2019
Highest in the city: 20.0625 µg/L — LANGDON CITY OF · 1,878 people · 2019
2/2 SYR4
Trichloroacetic Acid
11.3 µg/L
No EPA limit set
Main supplier: NORTHEAST RWD-LANGDON BRANCH · 2,450 people · 2019
2/2 SYR4
Lead
6.678 µg/L 45%
of the EPA limit 15 µg/L
Main supplier: NORTHEAST RWD-LANGDON BRANCH · 2,450 people · 2019
2/2 SYR4
Monochloroacetic Acid
4.35 µg/L
No EPA limit set
Main supplier: NORTHEAST RWD-LANGDON BRANCH · 2,450 people · 2019
Highest in the city: 5.114 µg/L — LANGDON CITY OF · 1,878 people · 2019
2/2 SYR4
Dibromochloromethane
3.492 µg/L
No EPA limit set
Main supplier: NORTHEAST RWD-LANGDON BRANCH · 2,450 people · 2019
Highest in the city: 4.9145 µg/L — LANGDON CITY OF · 1,878 people · 2019
2/2 SYR4
Monobromoacetic Acid
4.13 µg/L
No EPA limit set
Highest in the city: LANGDON CITY OF · 1,878 people · 2019
1/2 SYR4
Dibromoacetic Acid
1.568 µg/L
No EPA limit set
Highest in the city: LANGDON CITY OF · 1,878 people · 2019
1/2 SYR4
Lead
0.0014 mg/L 9.6%
of the EPA limit 0.0150 mg/L
Main supplier: NORTHEAST RWD-LANGDON BRANCH · 2,450 people · 2023
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 Langdon

SupplierPopulation served
NORTHEAST RWD-LANGDON BRANCH 2,450
LANGDON CITY OF 1,878

Frequently asked questions about Langdon tap water

Is Langdon tap water safe to drink?

EPA testing detected 13 contaminants in the water serving Langdon. 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 Langdon?

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

What contaminants are in Langdon's water?

The contaminants EPA monitoring detected in Langdon include Copper, TTHM, Chloroform, Total Haloacetic Acids (HAA5), Dichloroacetic Acid. 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.