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Tap water quality report

Ashtabula, OH

EPA monitoring detected 20 contaminants across the 2 water suppliers serving Ashtabula. 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
35,568
people served
20
contaminants found
Ohio rankings Lead in Ohio PFAS in Ohio

What was found in Ashtabula'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
1100 µg/L 28%
of the EPA limit 4000 µg/L
 1/2 SYR4
Nitrate
880 µg/L 8.8%
of the EPA limit 10000 µg/L
 1/2 SYR4
Copper
670 µg/L 52%
of the EPA limit 1300 µg/L
 2/2 SYR4
Nitrate-Nitrite
600 µg/L 6%
of the EPA limit 10000 µg/L
 1/2 SYR4
TTHM
102.8 µg/L 129%
of the EPA limit, in the worst sample — 80 µg/L
 2/2 SYR4
Total Haloacetic Acids (HAA5)
84.2 µg/L 140%
of the EPA limit, in the worst sample — 60 µg/L
 2/2 SYR4
Chloroform
79.9 µg/L
No EPA limit set
 2/2 SYR4
Dichloroacetic Acid
40 µg/L
No EPA limit set
 2/2 SYR4
Trichloroacetic Acid
38.5 µg/L
No EPA limit set
 2/2 SYR4
Barium
22 µg/L 1.1%
of the EPA limit 2000 µg/L
 1/2 SYR4
Monochloroacetic Acid
21.3 µg/L
No EPA limit set
 2/2 SYR4
Bromodichloromethane
19 µg/L
No EPA limit set
 2/2 SYR4
Lead
15 µg/L 100%
of the EPA limit 15 µg/L
 2/2 SYR4
Monobromoacetic Acid
9.3 µg/L
No EPA limit set
 2/2 SYR4
Dibromochloromethane
6.2 µg/L
No EPA limit set
 2/2 SYR4
Chromium
5.1 µg/L 5.1%
of the EPA limit 100 µg/L
 1/2 SYR4
Dibromoacetic Acid
2 µg/L
No EPA limit set
 2/2 SYR4
Bromoform
0.9000 µg/L
No EPA limit set
 2/2 SYR4
Simazine
0.0560 µg/L 1.4%
of the EPA limit 4 µg/L
 1/2 SYR4
Lead
0.0031 mg/L 21%
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 Ashtabula

SupplierPopulation served
AQUA OHIO - ASHTABULA 32,342
AQUA OHIO - VILLAGE OF JEFFERSON 3,226

Frequently asked questions about Ashtabula tap water

Is Ashtabula tap water safe to drink?

EPA testing detected 20 contaminants in the water serving Ashtabula. 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 Ashtabula?

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

What contaminants are in Ashtabula's water?

The contaminants EPA monitoring detected in Ashtabula include Fluoride, Nitrate, Copper, Nitrate-Nitrite, TTHM. 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.