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Tap water quality report

Harlan, IA

EPA monitoring detected 15 contaminants across the 1 water supplier serving Harlan. 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
5,067
people served
15
contaminants found
Iowa rankings Lead in Iowa PFAS in Iowa

What was found in Harlan'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
1300 µg/L 13%
of the EPA limit 10000 µg/L
Main supplier: HARLAN MUNICIPAL UTILITIES · 5,067 people · 2019
1/1 SYR4
Fluoride
530 µg/L 13%
of the EPA limit 4000 µg/L
Main supplier: HARLAN MUNICIPAL UTILITIES · 5,067 people · 2013
1/1 SYR4
Copper
190.99999999999994 µg/L 15%
of the EPA limit 1300 µg/L
Main supplier: HARLAN MUNICIPAL UTILITIES · 5,067 people · 2018
1/1 SYR4
TTHM
40.8 µg/L 51%
of the EPA limit 80 µg/L
Main supplier: HARLAN MUNICIPAL UTILITIES · 5,067 people · 2019
1/1 SYR4
Dibromochloromethane
13.6 µg/L
No EPA limit set
Main supplier: HARLAN MUNICIPAL UTILITIES · 5,067 people · 2019
1/1 SYR4
Bromodichloromethane
11.6 µg/L
No EPA limit set
Main supplier: HARLAN MUNICIPAL UTILITIES · 5,067 people · 2019
1/1 SYR4
Chloroform
9.319999999999999 µg/L
No EPA limit set
Main supplier: HARLAN MUNICIPAL UTILITIES · 5,067 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
7.9 µg/L 13%
of the EPA limit 60 µg/L
Main supplier: HARLAN MUNICIPAL UTILITIES · 5,067 people · 2019
1/1 SYR4
Bromoform
6.909999999999999 µg/L
No EPA limit set
Main supplier: HARLAN MUNICIPAL UTILITIES · 5,067 people · 2019
1/1 SYR4
Dibromoacetic Acid
4.8 µg/L
No EPA limit set
Main supplier: HARLAN MUNICIPAL UTILITIES · 5,067 people · 2019
1/1 SYR4
Dichloroacetic Acid
3 µg/L
No EPA limit set
Main supplier: HARLAN MUNICIPAL UTILITIES · 5,067 people · 2019
1/1 SYR4
Xylenes, Total
2.4 µg/L 0%
of the EPA limit 10000 µg/L
Main supplier: HARLAN MUNICIPAL UTILITIES · 5,067 people · 2017
1/1 SYR4
Lead
2 µg/L 13%
of the EPA limit 15 µg/L
Main supplier: HARLAN MUNICIPAL UTILITIES · 5,067 people · 2018
1/1 SYR4
Arsenic
1.95 µg/L 20%
of the EPA limit 10 µg/L
Main supplier: HARLAN MUNICIPAL UTILITIES · 5,067 people · 2017
1/1 SYR4
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
Main supplier: HARLAN MUNICIPAL UTILITIES · 5,067 people · 2024
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 Harlan

SupplierPopulation served
HARLAN MUNICIPAL UTILITIES 5,067

Frequently asked questions about Harlan tap water

Is Harlan tap water safe to drink?

EPA testing detected 15 contaminants in the water serving Harlan. 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 Harlan?

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

What contaminants are in Harlan's water?

The contaminants EPA monitoring detected in Harlan include Nitrate, Fluoride, Copper, TTHM, Dibromochloromethane. 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.