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Tap water quality report

Sherwood, OR

EPA monitoring detected 7 contaminants across the 2 water suppliers serving Sherwood. 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.

2
water suppliers
20,040
people served
7
contaminants found
Oregon rankings Lead in Oregon PFAS in Oregon

What was found in Sherwood'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
Copper
394 µg/L 30%
of the EPA limit 1300 µg/L
Main supplier: SHERWOOD, CITY OF · 19,885 people · 2019
2/2 SYR4
TTHM
37.91 µg/L 47%
of the EPA limit 80 µg/L
Main supplier: SHERWOOD, CITY OF · 19,885 people · 2019
1/2 SYR4
Total Haloacetic Acids (HAA5)
33.355 µg/L 56%
of the EPA limit 60 µg/L
Main supplier: SHERWOOD, CITY OF · 19,885 people · 2019
1/2 SYR4
Lead
17.8 µg/L 119%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: SHERWOOD, CITY OF · 19,885 people · 2019
2/2 SYR4
6:2 Fts
0.0413 µg/L
No EPA limit set
Main supplier: SHERWOOD, CITY OF · 19,885 people · 2025
1/2 UCMR-5
8:2 Fts
0.0080 µg/L
No EPA limit set
Main supplier: SHERWOOD, CITY OF · 19,885 people · 2025
1/2 UCMR-5
Lead
0.0013 mg/L 8.7%
of the EPA limit 0.0150 mg/L
Main supplier: SHERWOOD, CITY OF · 19,885 people · 2025
Highest in the city: 0.0022 mg/L — PARRETT MOUNTAIN VIEW ESTATES · 155 people · 2024
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 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 Sherwood

SupplierPopulation served
SHERWOOD, CITY OF 19,885
PARRETT MOUNTAIN VIEW ESTATES 155

Frequently asked questions about Sherwood tap water

Is Sherwood tap water safe to drink?

EPA testing detected 7 contaminants in the water serving Sherwood. 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 Sherwood?

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

What contaminants are in Sherwood's water?

The contaminants EPA monitoring detected in Sherwood include Copper, TTHM, Total Haloacetic Acids (HAA5), Lead, 6:2 Fts. 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.