We read 11 results from City of Portland’s 2025 water quality report. No results over a legal limit; 1 above a health goal or guideline.
Serves about 20,536 people · Water system ID TX2050005 · Read the district’s 2025 report (opens in a new tab)
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Results from the 2025 report
Each number is copied from the district’s report and links to the page it’s printed on. Where the report lists several plants, wells or purchased water, the highest is shown.
| Contaminant | Result | Health goal | Legal limit | What it means |
|---|---|---|---|---|
| Lead90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 4 | 1.48 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal7.4x the health goal |
| Chlorineaverage · range 1.2 to 4 · Distribution system · 2025 report, page 4 | 2.75 ppm | None set | 4 ppm | Below the legal limit |
| Copper90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 4 | 0.08 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · 336 Bayview (site order assumed) · 2025 report, page 4 | 28 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · 4165 Hewit Pl Dr · 2025 report, page 5 | 47 ppb | None set | 80 ppb | Below the legal limit |
| Nitrate (as N)highest measured · range 0.48 to 1.53 · Treated water, highest of 2 sources · 2025 report, page 5 | 1.53 ppm | 10 ppm | 10 ppm | Below the health goal |
| Dibromochloromethanehighest measured · range 8.5 to 15 · Distribution system · 2025 report, page 5 | 15 ppb | None set | None | No health limit |
| Lithiumaverage · range 26.4 to 38.3 · Treated water · 2025 report, page 5 | 31.7 ppb | None set | None | No health limit |
| PFBA (a PFAS)average · range ND to 6 · printed as 0.00525 ppb · Treated water · 2025 report, page 5 | 5.25 ppt | None set | None | No health limit |
| PFHxA (a PFAS)average · range ND to 4 · printed as 0.0040 ppb · Treated water · 2025 report, page 5 | 4 ppt | None set | None | No health limit |
| PFPeA (a PFAS)average · range ND to 5.1 · printed as 0.0051 ppb · Treated water · 2025 report, page 5 | 5.1 ppt | None set | None | No health limit |
Utility results describe the whole system, measured where water enters the pipes, not your tap. Your home’s plumbing can add lead or copper.
EPA testing for PFAS and lithium
EPA’s own nationwide testing (UCMR 5) found these in City of Portland’s water between Apr 2023 and Jan 2024. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- Lithium38.3 ppbFound in 4 of 4 samples · highest resultAbove EPA’s health reference level of 10 ppb (a guide, not a legal limit)
Source: EPA UCMR 5 occurrence data. The highest single result is shown; one high sample doesn’t mean every glass is that high.
What you can do
Nothing here is an emergency notice: if the district has a violation, it must tell customers directly. If you’d like to lower these at your tap, these are the treatments that remove them, and the catalog shows the models certified for each. Ranking is by certified removal; commissions never change the order.
Lead
Found: Lead
What removes it: Certified carbon block or RO.
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