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Tap water quality report

Irwin, OH

EPA monitoring detected 12 contaminants across the 1 water supplier serving Irwin. 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
175
people served
12
contaminants found
Ohio rankings Lead in Ohio PFAS in Ohio

What was found in Irwin'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
1754 µg/L 44%
of the EPA limit 4000 µg/L
Main supplier: ROSEDALE BIBLE INSTITUTE · 175 people · 2018
1/1 SYR4
Copper
262.05 µg/L 20%
of the EPA limit 1300 µg/L
Main supplier: ROSEDALE BIBLE INSTITUTE · 175 people · 2019
1/1 SYR4
Barium
26.4 µg/L 1.3%
of the EPA limit 2000 µg/L
Main supplier: ROSEDALE BIBLE INSTITUTE · 175 people · 2018
1/1 SYR4
TTHM
7.978 µg/L 10%
of the EPA limit 80 µg/L
Main supplier: ROSEDALE BIBLE INSTITUTE · 175 people · 2019
1/1 SYR4
Lead
5.5 µg/L 37%
of the EPA limit 15 µg/L
Main supplier: ROSEDALE BIBLE INSTITUTE · 175 people · 2019
1/1 SYR4
Arsenic
3.4 µg/L 34%
of the EPA limit 10 µg/L
Main supplier: ROSEDALE BIBLE INSTITUTE · 175 people · 2018
1/1 SYR4
Dibromochloromethane
2.788 µg/L
No EPA limit set
Main supplier: ROSEDALE BIBLE INSTITUTE · 175 people · 2019
1/1 SYR4
Bromoform
2.299 µg/L
No EPA limit set
Main supplier: ROSEDALE BIBLE INSTITUTE · 175 people · 2019
1/1 SYR4
Bromodichloromethane
1.881 µg/L
No EPA limit set
Main supplier: ROSEDALE BIBLE INSTITUTE · 175 people · 2019
1/1 SYR4
Dibromoacetic Acid
1.2 µg/L
No EPA limit set
Main supplier: ROSEDALE BIBLE INSTITUTE · 175 people · 2019
1/1 SYR4
Chloroform
1.0875 µg/L
No EPA limit set
Main supplier: ROSEDALE BIBLE INSTITUTE · 175 people · 2019
1/1 SYR4
Lead
0.0076 mg/L 51%
of the EPA limit 0.0150 mg/L
Main supplier: ROSEDALE BIBLE INSTITUTE · 175 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 Irwin

SupplierPopulation served
ROSEDALE BIBLE INSTITUTE 175

Frequently asked questions about Irwin tap water

Is Irwin tap water safe to drink?

EPA testing detected 12 contaminants in the water serving Irwin. 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 Irwin?

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

What contaminants are in Irwin's water?

The contaminants EPA monitoring detected in Irwin include Fluoride, Copper, Barium, TTHM, Lead. 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.