Tap WaterIndex

← Iowa

Tap water quality report

Avoca, IA

EPA monitoring detected 16 contaminants across the 2 water suppliers serving Avoca. 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
5,829
people served
16
contaminants found
Iowa rankings Lead in Iowa PFAS in Iowa

What was found in Avoca'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
760 µg/L 19%
of the EPA limit 4000 µg/L
Main supplier: REGIONAL WATER · 4,132 people · 2014
1/2 SYR4
Nitrate
581 µg/L 5.8%
of the EPA limit 10000 µg/L
Main supplier: REGIONAL WATER · 4,132 people · 2019
1/2 SYR4
Copper
45 µg/L 3.5%
of the EPA limit 1300 µg/L
Main supplier: REGIONAL WATER · 4,132 people · 2017
Highest in the city: 50 µg/L — AVOCA WATER WORKS · 1,697 people · 2017
2/2 SYR4
TTHM
34.7 µg/L 43%
of the EPA limit 80 µg/L
Main supplier: REGIONAL WATER · 4,132 people · 2019
2/2 SYR4
Lead
17.38 µg/L 116%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: REGIONAL WATER · 4,132 people · 2017
2/2 SYR4
Chloroform
16.1 µg/L
No EPA limit set
Main supplier: REGIONAL WATER · 4,132 people · 2019
2/2 SYR4
Lithium
13 µg/L
No EPA limit set
Main supplier: REGIONAL WATER · 4,132 people · 2024
1/2 UCMR-5
Bromodichloromethane
9.69 µg/L
No EPA limit set
Main supplier: REGIONAL WATER · 4,132 people · 2019
2/2 SYR4
Dibromochloromethane
7.43 µg/L
No EPA limit set
Main supplier: REGIONAL WATER · 4,132 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
7 µg/L 12%
of the EPA limit 60 µg/L
Main supplier: REGIONAL WATER · 4,132 people · 2019
1/2 SYR4
Dichloroacetic Acid
4 µg/L
No EPA limit set
Main supplier: REGIONAL WATER · 4,132 people · 2019
2/2 SYR4
Dibromoacetic Acid
2.7 µg/L
No EPA limit set
Main supplier: REGIONAL WATER · 4,132 people · 2019
2/2 SYR4
Bromoform
1.94 µg/L
No EPA limit set
Main supplier: REGIONAL WATER · 4,132 people · 2019
2/2 SYR4
Trichloroacetic Acid
1 µg/L
No EPA limit set
Main supplier: REGIONAL WATER · 4,132 people · 2019
1/2 SYR4
Vinyl Chloride
0.8000 µg/L 40%
of the EPA limit 2 µg/L
Main supplier: REGIONAL WATER · 4,132 people · 2019
1/2 SYR4
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
Main supplier: REGIONAL WATER · 4,132 people · 2026
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 Avoca

SupplierPopulation served
REGIONAL WATER 4,132
AVOCA WATER WORKS 1,697

Frequently asked questions about Avoca tap water

Is Avoca tap water safe to drink?

EPA testing detected 16 contaminants in the water serving Avoca. 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 Avoca?

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

What contaminants are in Avoca's water?

The contaminants EPA monitoring detected in Avoca include Fluoride, Nitrate, Copper, TTHM, Lead. 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.