We read 10 results from Pittsburgh Water & Sewer Auth’s 2025 water quality report. No results over a legal limit; 1 above a health goal or guideline.
Serves about 520,000 people · Water system ID PA5020038 · Read the district’s 2025 report (opens in a new tab)
Open this district in the water lookupCompare with your own test results, see the district map and get matched filters.
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 17 | 2 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal10x the health goal |
| Bariumhighest measured · Entry points 101-102 · 2025 report, page 14 | 0.03 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chlorinehighest measured · range 0.5 to 1.03 · Distribution system · 2025 report, page 16 | 1.03 ppm | None set | 4 ppm | Below the legal limit |
| Copper90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 17 | 0.11 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest measured · range 7 to 24 · Distribution system · 2025 report, page 15 | 15 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest measured · range 12 to 112 · Distribution system · 2025 report, page 15 | 51 ppb | None set | 80 ppb | Below the legal limit |
| Fluoridehighest measured · Entry points 101-102 · 2025 report, page 13 | 0.96 ppm | 1 ppm | 4 ppm | Below the health goal |
| Ironhighest measured · range ND to 0.08 · sampled 2024 · Distribution system · 2025 report, page 15 | 0.02 ppm | — | 0.3 ppm guideline | Within the guideline |
| Nitrate (as N)highest measured · Entry points 101, 102, 104 · 2025 report, page 13 | 0.62 ppm | 10 ppm | 10 ppm | Below the health goal |
| Turbidity (cloudiness)highest measured · Main treatment plant · 2025 report, page 18 | 0.15 NTU | None set | 1 NTU | Below the legal 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.
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.
More districts: Pennsylvania water quality · All states · Something look wrong? Tell us