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Tap water quality report

Marysville, OH

EPA monitoring detected 19 contaminants across the 1 water supplier serving Marysville. 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
25,571
people served
19
contaminants found
Ohio rankings Lead in Ohio PFAS in Ohio

What was found in Marysville'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
1215.5 µg/L 30%
of the EPA limit 4000 µg/L
Main supplier: MARYSVILLE CITY PWS · 25,571 people · 2019
1/1 SYR4
Nitrate
1040 µg/L 10%
of the EPA limit 10000 µg/L
Main supplier: MARYSVILLE CITY PWS · 25,571 people · 2019
1/1 SYR4
Nitrate-Nitrite
1028 µg/L 10%
of the EPA limit 10000 µg/L
Main supplier: MARYSVILLE CITY PWS · 25,571 people · 2019
1/1 SYR4
Copper
116.5 µg/L 9%
of the EPA limit 1300 µg/L
Main supplier: MARYSVILLE CITY PWS · 25,571 people · 2019
1/1 SYR4
TTHM
76.32 µg/L 95%
of the EPA limit 80 µg/L
Main supplier: MARYSVILLE CITY PWS · 25,571 people · 2019
1/1 SYR4
Chloroform
35.8 µg/L
No EPA limit set
Main supplier: MARYSVILLE CITY PWS · 25,571 people · 2019
1/1 SYR4
Bromodichloromethane
24.72 µg/L
No EPA limit set
Main supplier: MARYSVILLE CITY PWS · 25,571 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
23.7 µg/L 39%
of the EPA limit 60 µg/L
Main supplier: MARYSVILLE CITY PWS · 25,571 people · 2019
1/1 SYR4
Dibromochloromethane
17.74 µg/L
No EPA limit set
Main supplier: MARYSVILLE CITY PWS · 25,571 people · 2019
1/1 SYR4
Lithium
13.4 µg/L
No EPA limit set
Main supplier: MARYSVILLE CITY PWS · 25,571 people · 2024
1/1 UCMR-5
Dichloroacetic Acid
13.05 µg/L
No EPA limit set
Main supplier: MARYSVILLE CITY PWS · 25,571 people · 2019
1/1 SYR4
Nitrite
10 µg/L 1%
of the EPA limit 1000 µg/L
Main supplier: MARYSVILLE CITY PWS · 25,571 people · 2019
1/1 SYR4
Trichloroacetic Acid
7.49 µg/L
No EPA limit set
Main supplier: MARYSVILLE CITY PWS · 25,571 people · 2019
1/1 SYR4
Bromoform
5.28 µg/L
No EPA limit set
Main supplier: MARYSVILLE CITY PWS · 25,571 people · 2019
1/1 SYR4
Lead
5.1 µg/L 34%
of the EPA limit 15 µg/L
Main supplier: MARYSVILLE CITY PWS · 25,571 people · 2017
1/1 SYR4
Dibromoacetic Acid
3.9 µg/L
No EPA limit set
Main supplier: MARYSVILLE CITY PWS · 25,571 people · 2019
1/1 SYR4
Monochloroacetic Acid
2.2 µg/L
No EPA limit set
Main supplier: MARYSVILLE CITY PWS · 25,571 people · 2019
1/1 SYR4
Monobromoacetic Acid
1.56 µg/L
No EPA limit set
Main supplier: MARYSVILLE CITY PWS · 25,571 people · 2019
1/1 SYR4
Lead
0.00080 mg/L 5.3%
of the EPA limit 0.0150 mg/L
Main supplier: MARYSVILLE CITY PWS · 25,571 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 Marysville

SupplierPopulation served
MARYSVILLE CITY PWS 25,571

Frequently asked questions about Marysville tap water

Is Marysville tap water safe to drink?

EPA testing detected 19 contaminants in the water serving Marysville. 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 Marysville?

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

What contaminants are in Marysville's water?

The contaminants EPA monitoring detected in Marysville 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.