Tap WaterIndex

← Ohio

Tap water quality report

West Union, OH

EPA monitoring detected 17 contaminants across the 2 water suppliers serving West Union. 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
24,980
people served
17
contaminants found
Ohio rankings Lead in Ohio PFAS in Ohio

What was found in West Union'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
Copper
1020 µg/L 78%
of the EPA limit 1300 µg/L
Main supplier: ADAMS COUNTY REGIONAL WD PWS · 21,810 people · 2019
2/2 SYR4
Fluoride
966.75 µg/L 24%
of the EPA limit 4000 µg/L
Main supplier: ADAMS COUNTY REGIONAL WD PWS · 21,810 people · 2017
1/2 SYR4
Nitrate
294 µg/L 2.9%
of the EPA limit 10000 µg/L
Main supplier: ADAMS COUNTY REGIONAL WD PWS · 21,810 people · 2019
1/2 SYR4
Nitrate-Nitrite
204.265 µg/L 2%
of the EPA limit 10000 µg/L
Main supplier: ADAMS COUNTY REGIONAL WD PWS · 21,810 people · 2019
1/2 SYR4
TTHM
38.008 µg/L 48%
of the EPA limit 80 µg/L
Main supplier: ADAMS COUNTY REGIONAL WD PWS · 21,810 people · 2019
2/2 SYR4
Barium
24.985 µg/L 1.2%
of the EPA limit 2000 µg/L
Main supplier: ADAMS COUNTY REGIONAL WD PWS · 21,810 people · 2017
1/2 SYR4
Chloroform
13.52 µg/L
No EPA limit set
Main supplier: ADAMS COUNTY REGIONAL WD PWS · 21,810 people · 2019
2/2 SYR4
Lead
9.6 µg/L 64%
of the EPA limit 15 µg/L
Main supplier: ADAMS COUNTY REGIONAL WD PWS · 21,810 people · 2019
Highest in the city: 12.98 µg/L — WEST UNION PUBLIC WATER SYSTEM · 3,170 people · 2019
2/2 SYR4
Bromodichloromethane
12.56 µg/L
No EPA limit set
Main supplier: ADAMS COUNTY REGIONAL WD PWS · 21,810 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
10.432 µg/L 17%
of the EPA limit 60 µg/L
Main supplier: ADAMS COUNTY REGIONAL WD PWS · 21,810 people · 2019
2/2 SYR4
Dibromochloromethane
9.68 µg/L
No EPA limit set
Main supplier: ADAMS COUNTY REGIONAL WD PWS · 21,810 people · 2019
2/2 SYR4
Dichloroacetic Acid
4.5247 µg/L
No EPA limit set
Main supplier: ADAMS COUNTY REGIONAL WD PWS · 21,810 people · 2019
2/2 SYR4
Dibromoacetic Acid
3.1441 µg/L
No EPA limit set
Main supplier: ADAMS COUNTY REGIONAL WD PWS · 21,810 people · 2019
2/2 SYR4
Bromoform
3.06 µg/L
No EPA limit set
Main supplier: ADAMS COUNTY REGIONAL WD PWS · 21,810 people · 2019
2/2 SYR4
Monochloroacetic Acid
3.059 µg/L
No EPA limit set
Main supplier: ADAMS COUNTY REGIONAL WD PWS · 21,810 people · 2019
1/2 SYR4
Trichloroacetic Acid
2.4186 µg/L
No EPA limit set
Main supplier: ADAMS COUNTY REGIONAL WD PWS · 21,810 people · 2019
2/2 SYR4
Lead
0.0018 mg/L 12%
of the EPA limit 0.0150 mg/L
Main supplier: ADAMS COUNTY REGIONAL WD PWS · 21,810 people · 2025
Highest in the city: 0.0019 mg/L — WEST UNION PUBLIC WATER SYSTEM · 3,170 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 West Union

SupplierPopulation served
ADAMS COUNTY REGIONAL WD PWS 21,810
WEST UNION PUBLIC WATER SYSTEM 3,170

Frequently asked questions about West Union tap water

Is West Union tap water safe to drink?

EPA testing detected 17 contaminants in the water serving West Union. 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 West Union?

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

What contaminants are in West Union's water?

The contaminants EPA monitoring detected in West Union include Copper, Fluoride, Nitrate, Nitrate-Nitrite, 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.