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Tap water quality report

Indianola, IA

EPA monitoring detected 19 contaminants across the 5 water suppliers serving Indianola. 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.

5
water suppliers
36,396
people served
19
contaminants found
Iowa rankings Lead in Iowa PFAS in Iowa

What was found in Indianola'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
Fluoride
2560 µg/L 64%
of the EPA limit 4000 µg/L
Highest in the city: INDIANOLA WATER SUPPLY · 15,833 people · 2019
1/5 SYR4
Lithium
30 µg/L
No EPA limit set
Main supplier: WARREN WATER DISTRICT · 20,095 people · 2024
Highest in the city: 480 µg/L — INDIANOLA WATER SUPPLY · 15,833 people · 2024
2/5 UCMR-5
Nitrite
256 µg/L 26%
of the EPA limit 1000 µg/L
Highest in the city: INDIANOLA WATER SUPPLY · 15,833 people · 2019
1/5 SYR4
Copper
60 µg/L 4.6%
of the EPA limit 1300 µg/L
Main supplier: WARREN WATER DISTRICT · 20,095 people · 2017
Highest in the city: 73.03999999999998 µg/L — INDIANOLA WATER SUPPLY · 15,833 people · 2018
3/5 SYR4
TTHM
67 µg/L 84%
of the EPA limit 80 µg/L
Main supplier: WARREN WATER DISTRICT · 20,095 people · 2019
2/5 SYR4
Chloroform
47.69999999999999 µg/L
No EPA limit set
Main supplier: WARREN WATER DISTRICT · 20,095 people · 2019
3/5 SYR4
Total Haloacetic Acids (HAA5)
18 µg/L 30%
of the EPA limit 60 µg/L
Main supplier: WARREN WATER DISTRICT · 20,095 people · 2019
2/5 SYR4
Bromodichloromethane
17 µg/L
No EPA limit set
Main supplier: WARREN WATER DISTRICT · 20,095 people · 2019
3/5 SYR4
Dichloroacetic Acid
13 µg/L
No EPA limit set
Main supplier: WARREN WATER DISTRICT · 20,095 people · 2019
2/5 SYR4
Dibromochloromethane
11 µg/L
No EPA limit set
Main supplier: WARREN WATER DISTRICT · 20,095 people · 2019
3/5 SYR4
Lead
10 µg/L 67%
of the EPA limit 15 µg/L
Main supplier: WARREN WATER DISTRICT · 20,095 people · 2017
3/5 SYR4
Monochloroacetic Acid
3 µg/L
No EPA limit set
Main supplier: WARREN WATER DISTRICT · 20,095 people · 2019
Highest in the city: 5.927 µg/L — INDIANOLA WATER SUPPLY · 15,833 people · 2019
2/5 SYR4
Trichloroacetic Acid
3 µg/L
No EPA limit set
Main supplier: WARREN WATER DISTRICT · 20,095 people · 2019
Highest in the city: 4.813 µg/L — INDIANOLA WATER SUPPLY · 15,833 people · 2019
2/5 SYR4
Barium
4.6 µg/L 0.2%
of the EPA limit 2000 µg/L
Highest in the city: INDIANOLA WATER SUPPLY · 15,833 people · 2013
1/5 SYR4
Dibromoacetic Acid
3 µg/L
No EPA limit set
Main supplier: WARREN WATER DISTRICT · 20,095 people · 2019
1/5 SYR4
Bromoform
2.4 µg/L
No EPA limit set
Main supplier: WARREN WATER DISTRICT · 20,095 people · 2019
2/5 SYR4
Combined Radium (-226 And -228)
2.2 pCi/L 44%
of the EPA limit 5 pCi/L
Highest in the city: INDIANOLA WATER SUPPLY · 15,833 people · 2014
1/5 SYR4
Antimony, Total
0.6000 µg/L 10%
of the EPA limit 6 µg/L
Highest in the city: INDIANOLA WATER SUPPLY · 15,833 people · 2013
1/5 SYR4
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: WARREN WATER DISTRICT · 20,095 people · 2023
Highest in the city: 0.00020 mg/L — NORTH AMERICAN MOBILE HOME PARK · 235 people · 2025
3/5 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 Indianola

SupplierPopulation served
WARREN WATER DISTRICT 20,095
INDIANOLA WATER SUPPLY 15,833
NORTH AMERICAN MOBILE HOME PARK 235
INDIAN RIDGE MOBILE HOME COMMUNITY 153
SUNFIELD MOBILE HOME COMMUNITY 80

Frequently asked questions about Indianola tap water

Is Indianola tap water safe to drink?

EPA testing detected 19 contaminants in the water serving Indianola. 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 Indianola?

5 public water suppliers report drinking-water monitoring for Indianola, Iowa to the EPA. Each is listed above with its population served.

What contaminants are in Indianola's water?

The contaminants EPA monitoring detected in Indianola include Fluoride, Lithium, Nitrite, Copper, 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.