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Tap water quality report

Cloverdale, OR

EPA monitoring detected 12 contaminants across the 3 water suppliers serving Cloverdale. 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.

3
water suppliers
990
people served
12
contaminants found
Oregon rankings Lead in Oregon PFAS in Oregon

What was found in Cloverdale'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
2370 µg/L 24%
of the EPA limit 10000 µg/L
Main supplier: BEAVER WATER DISTRICT · 600 people · 2019
3/3 SYR4
Nitrate-Nitrite
448 µg/L 4.5%
of the EPA limit 10000 µg/L
Main supplier: BEAVER WATER DISTRICT · 600 people · 2018
Highest in the city: 1560 µg/L — CLOVERDALE WATER DISTRICT · 310 people · 2014
3/3 SYR4
Fluoride
1071 µg/L 27%
of the EPA limit 4000 µg/L
Highest in the city: CLOVERDALE WATER DISTRICT · 310 people · 2018
1/3 SYR4
Copper
433.4 µg/L 33%
of the EPA limit 1300 µg/L
Highest in the city: TIERRA DEL MAR WATER CO · 80 people · 2019
2/3 SYR4
TTHM
79.915 µg/L 100%
of the EPA limit 80 µg/L
Main supplier: BEAVER WATER DISTRICT · 600 people · 2019
3/3 SYR4
Total Haloacetic Acids (HAA5)
47.875 µg/L 80%
of the EPA limit 60 µg/L
Main supplier: BEAVER WATER DISTRICT · 600 people · 2019
Highest in the city: 56.65 µg/L — TIERRA DEL MAR WATER CO · 80 people · 2019
2/3 SYR4
Lead
2.6 µg/L 17%
of the EPA limit 15 µg/L
Main supplier: BEAVER WATER DISTRICT · 600 people · 2018
Highest in the city: 19.9 µg/L — TIERRA DEL MAR WATER CO · 80 people · 2019
3/3 SYR4
Barium
3.72 µg/L 0.2%
of the EPA limit 2000 µg/L
Highest in the city: TIERRA DEL MAR WATER CO · 80 people · 2019
1/3 SYR4
Gross Alpha, Excl. Radon And U
3.57 pCi/L 24%
of the EPA limit 15 pCi/L
Highest in the city: CLOVERDALE WATER DISTRICT · 310 people · 2015
1/3 SYR4
Combined Radium (-226 And -228)
1.37 pCi/L 27%
of the EPA limit 5 pCi/L
Highest in the city: CLOVERDALE WATER DISTRICT · 310 people · 2015
1/3 SYR4
Combined Uranium
1 µg/L 3.3%
of the EPA limit 30 µg/L
Highest in the city: CLOVERDALE WATER DISTRICT · 310 people · 2015
1/3 SYR4
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: BEAVER WATER DISTRICT · 600 people · 2024
Highest in the city: 0.0065 mg/L — CLOVERDALE WATER DISTRICT · 310 people · 2025
3/3 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 Cloverdale

SupplierPopulation served
BEAVER WATER DISTRICT 600
CLOVERDALE WATER DISTRICT 310
TIERRA DEL MAR WATER CO 80

Frequently asked questions about Cloverdale tap water

Is Cloverdale tap water safe to drink?

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

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

What contaminants are in Cloverdale's water?

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