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Tap water quality report

Little Rock, IA

EPA monitoring detected 13 contaminants across the 1 water supplier serving Little Rock. 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
441
people served
13
contaminants found
Iowa rankings Lead in Iowa PFAS in Iowa

What was found in Little Rock'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
462.32 µg/L 36%
of the EPA limit 1300 µg/L
Main supplier: LITTLE ROCK WATER SUPPLY · 441 people · 2019
1/1 SYR4
TTHM
31.7 µg/L 40%
of the EPA limit 80 µg/L
Main supplier: LITTLE ROCK WATER SUPPLY · 441 people · 2018
1/1 SYR4
Total Haloacetic Acids (HAA5)
31.38 µg/L 52%
of the EPA limit 60 µg/L
Main supplier: LITTLE ROCK WATER SUPPLY · 441 people · 2018
1/1 SYR4
Monochloroacetic Acid
23.1555 µg/L
No EPA limit set
Main supplier: LITTLE ROCK WATER SUPPLY · 441 people · 2018
1/1 SYR4
Chloroform
19.95 µg/L
No EPA limit set
Main supplier: LITTLE ROCK WATER SUPPLY · 441 people · 2018
1/1 SYR4
Lead
14.425 µg/L 96%
of the EPA limit 15 µg/L
Main supplier: LITTLE ROCK WATER SUPPLY · 441 people · 2019
1/1 SYR4
Bromodichloromethane
8.977 µg/L
No EPA limit set
Main supplier: LITTLE ROCK WATER SUPPLY · 441 people · 2018
1/1 SYR4
Trichloroacetic Acid
7.438 µg/L
No EPA limit set
Main supplier: LITTLE ROCK WATER SUPPLY · 441 people · 2018
1/1 SYR4
Dichloroacetic Acid
7.251 µg/L
No EPA limit set
Main supplier: LITTLE ROCK WATER SUPPLY · 441 people · 2018
1/1 SYR4
Dibromochloromethane
6.613 µg/L
No EPA limit set
Main supplier: LITTLE ROCK WATER SUPPLY · 441 people · 2018
1/1 SYR4
Dibromoacetic Acid
1.153 µg/L
No EPA limit set
Main supplier: LITTLE ROCK WATER SUPPLY · 441 people · 2018
1/1 SYR4
Bromoform
0.8500 µg/L
No EPA limit set
Main supplier: LITTLE ROCK WATER SUPPLY · 441 people · 2018
1/1 SYR4
Lead
0.0091 mg/L 61%
of the EPA limit 0.0150 mg/L
Main supplier: LITTLE ROCK WATER SUPPLY · 441 people · 2025
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 Little Rock

SupplierPopulation served
LITTLE ROCK WATER SUPPLY 441

Frequently asked questions about Little Rock tap water

Is Little Rock tap water safe to drink?

EPA testing detected 13 contaminants in the water serving Little Rock. 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 Little Rock?

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

What contaminants are in Little Rock's water?

The contaminants EPA monitoring detected in Little Rock include Copper, TTHM, Total Haloacetic Acids (HAA5), Monochloroacetic Acid, Chloroform. 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.