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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 highest level found 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 highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Fluoride
760 µg/L 19%
of the EPA limit 4000 µg/L
 1/2 SYR4
Nitrate
581 µg/L 5.8%
of the EPA limit 10000 µg/L
 1/2 SYR4
Copper
50 µg/L 3.8%
of the EPA limit 1300 µg/L
 2/2 SYR4
TTHM
35 µg/L 44%
of the EPA limit 80 µg/L
 2/2 SYR4
Lead
20 µg/L 133%
of the EPA limit, in the worst sample — 15 µg/L
 2/2 SYR4
Chloroform
17 µg/L
No EPA limit set
 2/2 SYR4
Lithium
13 µg/L
No EPA limit set
 1/2 UCMR-5
Bromodichloromethane
9.9 µg/L
No EPA limit set
 2/2 SYR4
Dibromochloromethane
7.7 µg/L
No EPA limit set
 2/2 SYR4
Total Haloacetic Acids (HAA5)
7 µg/L 12%
of the EPA limit 60 µg/L
 1/2 SYR4
Dichloroacetic Acid
4 µg/L
No EPA limit set
 2/2 SYR4
Dibromoacetic Acid
3 µg/L
No EPA limit set
 2/2 SYR4
Bromoform
2 µg/L
No EPA limit set
 2/2 SYR4
Trichloroacetic Acid
1 µg/L
No EPA limit set
 1/2 SYR4
Vinyl Chloride
0.8000 µg/L 40%
of the EPA limit 2 µg/L
 1/2 SYR4
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
 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 single worst sample on record — 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 highest level found 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.