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Tap water quality report

Oregon, OH

EPA monitoring detected 22 contaminants across the 1 water supplier serving Oregon. 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
19,950
people served
22
contaminants found
Ohio rankings Lead in Ohio PFAS in Ohio

What was found in Oregon'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-Nitrite
4231 µg/L 42%
of the EPA limit 10000 µg/L
Main supplier: OREGON CITY · 19,950 people · 2019
1/1 SYR4
Nitrate
4220 µg/L 42%
of the EPA limit 10000 µg/L
Main supplier: OREGON CITY · 19,950 people · 2019
1/1 SYR4
Fluoride
999 µg/L 25%
of the EPA limit 4000 µg/L
Main supplier: OREGON CITY · 19,950 people · 2019
1/1 SYR4
Chlorite
185 µg/L 19%
of the EPA limit 1000 µg/L
Main supplier: OREGON CITY · 19,950 people · 2017
1/1 SYR4
Nitrite
170 µg/L 17%
of the EPA limit 1000 µg/L
Main supplier: OREGON CITY · 19,950 people · 2019
1/1 SYR4
TTHM
87.295 µg/L 109%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: OREGON CITY · 19,950 people · 2019
1/1 SYR4
Chloroform
68.15 µg/L
No EPA limit set
Main supplier: OREGON CITY · 19,950 people · 2019
1/1 SYR4
Copper
35 µg/L 2.7%
of the EPA limit 1300 µg/L
Main supplier: OREGON CITY · 19,950 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
23.29 µg/L 39%
of the EPA limit 60 µg/L
Main supplier: OREGON CITY · 19,950 people · 2019
1/1 SYR4
Dichloroacetic Acid
17.09 µg/L
No EPA limit set
Main supplier: OREGON CITY · 19,950 people · 2019
1/1 SYR4
Bromodichloromethane
15.9 µg/L
No EPA limit set
Main supplier: OREGON CITY · 19,950 people · 2019
1/1 SYR4
Lead
12.8 µg/L 85%
of the EPA limit 15 µg/L
Main supplier: OREGON CITY · 19,950 people · 2019
1/1 SYR4
Barium
12 µg/L 0.6%
of the EPA limit 2000 µg/L
Main supplier: OREGON CITY · 19,950 people · 2019
1/1 SYR4
Dibromochloromethane
9.225 µg/L
No EPA limit set
Main supplier: OREGON CITY · 19,950 people · 2019
1/1 SYR4
Trichloroacetic Acid
4.46 µg/L
No EPA limit set
Main supplier: OREGON CITY · 19,950 people · 2019
1/1 SYR4
Monochloroacetic Acid
3.575 µg/L
No EPA limit set
Main supplier: OREGON CITY · 19,950 people · 2019
1/1 SYR4
Dibromoacetic Acid
3.3 µg/L
No EPA limit set
Main supplier: OREGON CITY · 19,950 people · 2019
1/1 SYR4
Bromoform
2.285 µg/L
No EPA limit set
Main supplier: OREGON CITY · 19,950 people · 2019
1/1 SYR4
Atrazine
0.8490 µg/L 28%
of the EPA limit 3 µg/L
Main supplier: OREGON CITY · 19,950 people · 2019
1/1 SYR4
Simazine
0.0783 µg/L 2%
of the EPA limit 4 µg/L
Main supplier: OREGON CITY · 19,950 people · 2019
1/1 SYR4
Pfhxa
0.0031 µg/L
No EPA limit set
Main supplier: OREGON CITY · 19,950 people · 2023
1/1 UCMR-5
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: OREGON CITY · 19,950 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 Oregon

SupplierPopulation served
OREGON CITY 19,950

Frequently asked questions about Oregon tap water

Is Oregon tap water safe to drink?

EPA testing detected 22 contaminants in the water serving Oregon. 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 Oregon?

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

What contaminants are in Oregon's water?

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