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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 level at the main supplier 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 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
1048 µg/L 26%
of the EPA limit 4000 µg/L
Main supplier: AQUA OHIO - ASHTABULA · 32,342 people · 2019
1/2 SYR4
Nitrate
808.5 µg/L 8.1%
of the EPA limit 10000 µg/L
Main supplier: AQUA OHIO - ASHTABULA · 32,342 people · 2019
1/2 SYR4
Nitrate-Nitrite
593 µg/L 5.9%
of the EPA limit 10000 µg/L
Main supplier: AQUA OHIO - ASHTABULA · 32,342 people · 2012
1/2 SYR4
Copper
352 µg/L 27%
of the EPA limit 1300 µg/L
Main supplier: AQUA OHIO - ASHTABULA · 32,342 people · 2019
2/2 SYR4
TTHM
83.05 µg/L 104%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: AQUA OHIO - ASHTABULA · 32,342 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
58.45 µg/L 97%
of the EPA limit 60 µg/L
Main supplier: AQUA OHIO - ASHTABULA · 32,342 people · 2019
Highest in the city: 65.03 µg/L — AQUA OHIO - VILLAGE OF JEFFERSON · 3,226 people · 2019
2/2 SYR4
Chloroform
61.44 µg/L
No EPA limit set
Main supplier: AQUA OHIO - ASHTABULA · 32,342 people · 2019
2/2 SYR4
Trichloroacetic Acid
29.1 µg/L
No EPA limit set
Main supplier: AQUA OHIO - ASHTABULA · 32,342 people · 2019
Highest in the city: 35.86 µg/L — AQUA OHIO - VILLAGE OF JEFFERSON · 3,226 people · 2019
2/2 SYR4
Dichloroacetic Acid
30.45 µg/L
No EPA limit set
Main supplier: AQUA OHIO - ASHTABULA · 32,342 people · 2019
2/2 SYR4
Barium
21.65 µg/L 1.1%
of the EPA limit 2000 µg/L
Main supplier: AQUA OHIO - ASHTABULA · 32,342 people · 2019
1/2 SYR4
Bromodichloromethane
16.99 µg/L
No EPA limit set
Main supplier: AQUA OHIO - ASHTABULA · 32,342 people · 2019
2/2 SYR4
Monochloroacetic Acid
6.93 µg/L
No EPA limit set
Main supplier: AQUA OHIO - ASHTABULA · 32,342 people · 2019
Highest in the city: 13.6 µg/L — AQUA OHIO - VILLAGE OF JEFFERSON · 3,226 people · 2019
2/2 SYR4
Lead
11.9 µg/L 79%
of the EPA limit 15 µg/L
Main supplier: AQUA OHIO - ASHTABULA · 32,342 people · 2019
2/2 SYR4
Dibromochloromethane
5.485 µg/L
No EPA limit set
Main supplier: AQUA OHIO - ASHTABULA · 32,342 people · 2019
2/2 SYR4
Chromium
4.525 µg/L 4.5%
of the EPA limit 100 µg/L
Main supplier: AQUA OHIO - ASHTABULA · 32,342 people · 2019
1/2 SYR4
Monobromoacetic Acid
1.9 µg/L
No EPA limit set
Main supplier: AQUA OHIO - ASHTABULA · 32,342 people · 2019
Highest in the city: 2.13 µg/L — AQUA OHIO - VILLAGE OF JEFFERSON · 3,226 people · 2019
2/2 SYR4
Dibromoacetic Acid
1.6 µg/L
No EPA limit set
Main supplier: AQUA OHIO - ASHTABULA · 32,342 people · 2019
2/2 SYR4
Bromoform
0.7000 µg/L
No EPA limit set
Main supplier: AQUA OHIO - ASHTABULA · 32,342 people · 2019
Highest in the city: 0.8600 µg/L — AQUA OHIO - VILLAGE OF JEFFERSON · 3,226 people · 2019
2/2 SYR4
Simazine
0.0560 µg/L 1.4%
of the EPA limit 4 µg/L
Main supplier: AQUA OHIO - ASHTABULA · 32,342 people · 2019
1/2 SYR4
Lead
0.0031 mg/L 21%
of the EPA limit 0.0150 mg/L
Main supplier: AQUA OHIO - ASHTABULA · 32,342 people · 2025
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 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, Nitrate-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.