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Tap water quality report

Lima, OH

EPA monitoring detected 20 contaminants across the 1 water supplier serving Lima. 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
65,619
people served
20
contaminants found
Ohio rankings Lead in Ohio PFAS in Ohio

What was found in Lima'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
2354.5 µg/L 24%
of the EPA limit 10000 µg/L
Main supplier: LIMA CITY · 65,619 people · 2019
1/1 SYR4
Fluoride
1039 µg/L 26%
of the EPA limit 4000 µg/L
Main supplier: LIMA CITY · 65,619 people · 2019
1/1 SYR4
TTHM
78.57 µg/L 98%
of the EPA limit 80 µg/L
Main supplier: LIMA CITY · 65,619 people · 2019
1/1 SYR4
Copper
71.4 µg/L 5.5%
of the EPA limit 1300 µg/L
Main supplier: LIMA CITY · 65,619 people · 2018
1/1 SYR4
Chloroform
58.02 µg/L
No EPA limit set
Main supplier: LIMA CITY · 65,619 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
31.17 µg/L 52%
of the EPA limit 60 µg/L
Main supplier: LIMA CITY · 65,619 people · 2019
1/1 SYR4
Dichloroacetic Acid
22.4 µg/L
No EPA limit set
Main supplier: LIMA CITY · 65,619 people · 2019
1/1 SYR4
Lead
16.85 µg/L 112%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: LIMA CITY · 65,619 people · 2018
1/1 SYR4
Bromodichloromethane
14.8 µg/L
No EPA limit set
Main supplier: LIMA CITY · 65,619 people · 2019
1/1 SYR4
Trichloroacetic Acid
6.7 µg/L
No EPA limit set
Main supplier: LIMA CITY · 65,619 people · 2019
1/1 SYR4
Dibromochloromethane
6.42 µg/L
No EPA limit set
Main supplier: LIMA CITY · 65,619 people · 2019
1/1 SYR4
Monochloroacetic Acid
3.4 µg/L
No EPA limit set
Main supplier: LIMA CITY · 65,619 people · 2019
1/1 SYR4
Dibromoacetic Acid
2.5 µg/L
No EPA limit set
Main supplier: LIMA CITY · 65,619 people · 2019
1/1 SYR4
Bromoform
1.6 µg/L
No EPA limit set
Main supplier: LIMA CITY · 65,619 people · 2019
1/1 SYR4
Atrazine
0.8850 µg/L 30%
of the EPA limit 3 µg/L
Main supplier: LIMA CITY · 65,619 people · 2019
1/1 SYR4
Simazine
0.0983 µg/L 2.5%
of the EPA limit 4 µg/L
Main supplier: LIMA CITY · 65,619 people · 2019
1/1 SYR4
Pfba
0.0053 µg/L
No EPA limit set
Main supplier: LIMA CITY · 65,619 people · 2024
1/1 UCMR-5
Pfpea
0.0051 µg/L
No EPA limit set
Main supplier: LIMA CITY · 65,619 people · 2024
1/1 UCMR-5
Pfhxa
0.0033 µg/L
No EPA limit set
Main supplier: LIMA CITY · 65,619 people · 2024
1/1 UCMR-5
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: LIMA CITY · 65,619 people · 2026
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 Lima

SupplierPopulation served
LIMA CITY 65,619

Frequently asked questions about Lima tap water

Is Lima tap water safe to drink?

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

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

What contaminants are in Lima's water?

The contaminants EPA monitoring detected in Lima include Nitrate, Fluoride, TTHM, Copper, Chloroform. 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.