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Tap water quality report

Happy Valley, OR

EPA monitoring detected 17 contaminants across the 3 water suppliers serving Happy Valley. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

3
water suppliers
50,029
people served
17
contaminants found
Oregon rankings Lead in Oregon PFAS in Oregon

What was found in Happy Valley'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
Nitrate
2320 µg/L 23%
of the EPA limit 10000 µg/L
 3/3 SYR4
Nitrate-Nitrite
2320 µg/L 23%
of the EPA limit 10000 µg/L
 3/3 SYR4
Fluoride
1510 µg/L 38%
of the EPA limit 4000 µg/L
 2/3 SYR4
Copper
346 µg/L 27%
of the EPA limit 1300 µg/L
 2/3 SYR4
Nitrite
123 µg/L 12%
of the EPA limit 1000 µg/L
 2/3 SYR4
Lithium
58.2 µg/L
No EPA limit set
 1/3 UCMR-5
TTHM
57 µg/L 71%
of the EPA limit 80 µg/L
 3/3 SYR4
Total Haloacetic Acids (HAA5)
50.1 µg/L 84%
of the EPA limit 60 µg/L
 3/3 SYR4
Barium
49 µg/L 2.5%
of the EPA limit 2000 µg/L
 3/3 SYR4
Lead
35 µg/L 233%
of the EPA limit, in the worst sample — 15 µg/L
 2/3 SYR4
Gross Alpha, Excl. Radon And U
7.57 pCi/L 50%
of the EPA limit 15 pCi/L
 1/3 SYR4
Gross Beta Particle Activity
4.87 pCi/L
No EPA limit set
 1/3 SYR4
Arsenic
3.54 µg/L 35%
of the EPA limit 10 µg/L
 2/3 SYR4
Chromium
2 µg/L 2%
of the EPA limit 100 µg/L
 1/3 SYR4
Combined Radium (-226 And -228)
1.43 pCi/L 29%
of the EPA limit 5 pCi/L
 2/3 SYR4
Lead
0.0090 mg/L 60%
of the EPA limit 0.0150 mg/L
 3/3 LCR
PFOS
0.0043 µg/L
No EPA limit set
 1/3 UCMR-5
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 Happy Valley

SupplierPopulation served
SUNRISE WATER AUTHORITY 50,003
SPAR TREE MHP 26
NORTH CLACKAMAS COUNTY WC 0

Frequently asked questions about Happy Valley tap water

Is Happy Valley tap water safe to drink?

EPA testing detected 17 contaminants in the water serving Happy Valley. 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 Happy Valley?

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

What contaminants are in Happy Valley's water?

The contaminants EPA monitoring detected in Happy Valley include Nitrate, Nitrate-Nitrite, Fluoride, Copper, 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.