We read 13 results from York Water Co’s 2025 water quality report. No results over a legal limit; 2 above a health goal or guideline.
Serves about 206,762 people · Water system ID PA7670100 · 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 |
|---|---|---|---|---|
| Atrazinesingle sample · Treatment plant · 2025 report, page 7 | 0.21 ppb | 0.15 ppb | 3 ppb | Above the health goal1.4x the health goal |
| Lead90th percentile of 50 homes tested, 0 over the action level · Customer taps (50 homes) · 2025 report, page 8 | 3 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal15x the health goal |
| Bariumsingle sample · Treatment plant · 2025 report, page 7 | 0.02 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloramineaverage · range 0.22 to 3.19 · Distribution system · 2025 report, page 7 | 2.52 ppm | None set | 4 ppm | Below the legal limit |
| Copper90th percentile of 50 homes tested, 0 over the action level · Customer taps (50 homes) · 2025 report, page 8 | 0.04 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Cyanidesingle sample · Treatment plant · 2025 report, page 7 | 99 ppb | 150 ppb | 200 ppb | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 13.8 to 39.4 · Distribution system · 2025 report, page 8 | 29.1 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 16.3 to 52.8 · Distribution system · 2025 report, page 8 | 37.1 ppb | None set | 80 ppb | Below the legal limit |
| E. colias reported · Distribution system · 2025 report, page 6 | Not detected | 0 positive samples | 0 positive samples | Not detected |
| Fluorideaverage · range 0.55 to 0.92 · West Manheim area only · 2025 report, page 7 | 0.72 ppm | 1 ppm | 4 ppm | Below the health goal |
| Nitrate (as N)average · range 2.66 to 4.37 · Treatment plant · 2025 report, page 7 | 3.45 ppm | 10 ppm | 10 ppm | Below the health goal |
| Total coliform bacteriahighest month · Distribution system · 2025 report, page 6 | Not detected | 0 % positive | 5 % positive | Not detected |
| Turbidity (cloudiness)highest measured · Treatment plant · 2025 report, page 7 | 0.17 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.
Industrial chemicals and pesticides
Found: Atrazine
What removes it: Carbon block or RO.
Lead
Found: Lead
What removes it: Certified carbon block or RO.
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