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Tap water quality report

Greenville, OH

EPA monitoring detected 21 contaminants across the 1 water supplier serving Greenville. 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.

1
water supplier
13,227
people served
21
contaminants found
Ohio rankings Lead in Ohio PFAS in Ohio

What was found in Greenville'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
Nitrate
4400 µg/L 44%
of the EPA limit 10000 µg/L
Main supplier: GREENVILLE CITY PWS · 13,227 people · 2019
1/1 SYR4
Nitrate-Nitrite
4260 µg/L 43%
of the EPA limit 10000 µg/L
Main supplier: GREENVILLE CITY PWS · 13,227 people · 2019
1/1 SYR4
Fluoride
295.75 µg/L 7.4%
of the EPA limit 4000 µg/L
Main supplier: GREENVILLE CITY PWS · 13,227 people · 2019
1/1 SYR4
Copper
154.1 µg/L 12%
of the EPA limit 1300 µg/L
Main supplier: GREENVILLE CITY PWS · 13,227 people · 2019
1/1 SYR4
TTHM
73.025 µg/L 91%
of the EPA limit 80 µg/L
Main supplier: GREENVILLE CITY PWS · 13,227 people · 2019
1/1 SYR4
Chloroform
58.25 µg/L
No EPA limit set
Main supplier: GREENVILLE CITY PWS · 13,227 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
22.475 µg/L 37%
of the EPA limit 60 µg/L
Main supplier: GREENVILLE CITY PWS · 13,227 people · 2019
1/1 SYR4
Dichloroacetic Acid
17.1 µg/L
No EPA limit set
Main supplier: GREENVILLE CITY PWS · 13,227 people · 2019
1/1 SYR4
Barium
14 µg/L 0.7%
of the EPA limit 2000 µg/L
Main supplier: GREENVILLE CITY PWS · 13,227 people · 2019
1/1 SYR4
Cyanide
13 µg/L 6.5%
of the EPA limit 200 µg/L
Main supplier: GREENVILLE CITY PWS · 13,227 people · 2019
1/1 SYR4
Lead
12.98 µg/L 87%
of the EPA limit 15 µg/L
Main supplier: GREENVILLE CITY PWS · 13,227 people · 2019
1/1 SYR4
Bromodichloromethane
12.3 µg/L
No EPA limit set
Main supplier: GREENVILLE CITY PWS · 13,227 people · 2019
1/1 SYR4
Trichloroacetic Acid
5.97 µg/L
No EPA limit set
Main supplier: GREENVILLE CITY PWS · 13,227 people · 2019
1/1 SYR4
Dibromochloromethane
5.655 µg/L
No EPA limit set
Main supplier: GREENVILLE CITY PWS · 13,227 people · 2019
1/1 SYR4
Monochloroacetic Acid
2.295 µg/L
No EPA limit set
Main supplier: GREENVILLE CITY PWS · 13,227 people · 2019
1/1 SYR4
Dibromoacetic Acid
2.1 µg/L
No EPA limit set
Main supplier: GREENVILLE CITY PWS · 13,227 people · 2019
1/1 SYR4
Atrazine
1.9 µg/L 63%
of the EPA limit 3 µg/L
Main supplier: GREENVILLE CITY PWS · 13,227 people · 2019
1/1 SYR4
Bromoform
1.545 µg/L
No EPA limit set
Main supplier: GREENVILLE CITY PWS · 13,227 people · 2019
1/1 SYR4
PFOS
0.0063 µg/L
No EPA limit set
Main supplier: GREENVILLE CITY PWS · 13,227 people · 2025
1/1 UCMR-5
PFHXS
0.0059 µg/L
No EPA limit set
Main supplier: GREENVILLE CITY PWS · 13,227 people · 2025
1/1 UCMR-5
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: GREENVILLE CITY PWS · 13,227 people · 2025
1/1 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 Greenville

SupplierPopulation served
GREENVILLE CITY PWS 13,227

Frequently asked questions about Greenville tap water

Is Greenville tap water safe to drink?

EPA testing detected 21 contaminants in the water serving Greenville. 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 Greenville?

1 public water supplier report drinking-water monitoring for Greenville, Ohio to the EPA. Each is listed above with its population served.

What contaminants are in Greenville's water?

The contaminants EPA monitoring detected in Greenville include Nitrate, Nitrate-Nitrite, Fluoride, 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.