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Tap water quality report

Mcminnville, OR

EPA monitoring detected 11 contaminants across the 2 water suppliers serving Mcminnville. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

2
water suppliers
34,575
people served
11
contaminants found
Oregon rankings Lead in Oregon PFAS in Oregon

What was found in Mcminnville's water

The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Fluoride
600 µg/L 15%
of the EPA limit 4000 µg/L
 1/2 SYR4
Copper
502 µg/L 39%
of the EPA limit 1300 µg/L
 1/2 SYR4
TTHM
65.7 µg/L 82%
of the EPA limit 80 µg/L
 1/2 SYR4
Nitrate
60 µg/L 0.6%
of the EPA limit 10000 µg/L
 1/2 SYR4
Nitrate-Nitrite
60 µg/L 0.6%
of the EPA limit 10000 µg/L
 1/2 SYR4
Lead
47 µg/L 313%
of the EPA limit, in the worst sample — 15 µg/L
 2/2 SYR4
Total Haloacetic Acids (HAA5)
46.6 µg/L 78%
of the EPA limit 60 µg/L
 1/2 SYR4
Gross Alpha, Excl. Radon And U
3.6 pCi/L 24%
of the EPA limit 15 pCi/L
 1/2 SYR4
Barium
2 µg/L 0.1%
of the EPA limit 2000 µg/L
 1/2 SYR4
Combined Radium (-226 And -228)
1.7 pCi/L 34%
of the EPA limit 5 pCi/L
 1/2 SYR4
Lead
0.0013 mg/L 8.7%
of the EPA limit 0.0150 mg/L
 2/2 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 single worst sample on record — 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 Mcminnville

SupplierPopulation served
MCMINNVILLE WATER & LIGHT 34,515
FOX RIDGE WATER CO 60

Frequently asked questions about Mcminnville tap water

Is Mcminnville tap water safe to drink?

EPA testing detected 11 contaminants in the water serving Mcminnville. 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 Mcminnville?

2 public water suppliers report drinking-water monitoring for Mcminnville, Oregon to the EPA. Each is listed above with its population served.

What contaminants are in Mcminnville's water?

The contaminants EPA monitoring detected in Mcminnville include Fluoride, Copper, TTHM, Nitrate, Nitrate-Nitrite. The full list, with the highest level found 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.