We read 6 results from City of Red Oak’s 2025 water quality report. No results over a legal limit; 2 above a health goal or guideline.
Serves about 18,577 people · Water system ID TX0700031 · 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 |
|---|---|---|---|---|
| Copper90th percentile of homes tested, 0 over the action level · sampled 2024 · Customer taps · 2025 report, page 6 | 0.39 ppm | 0.3 ppm | 1.3 ppm (action level) | Above the health goal1.3x the health goal |
| Lead90th percentile of homes tested, 0 over the action level · sampled 2024 · Customer taps · 2025 report, page 6 | 1.1 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal5.5x the health goal |
| Bromodichloromethaneaverage · range 3.42 to 5.97 · 2025 report, page 6 | 4.43 ppb | None set | None | No health limit |
| Bromoformaverage · range ND to 1.95 · 2025 report, page 6 | 0.65 ppb | None set | None | No health limit |
| Chloroformaverage · range 1.92 to 8.99 · 2025 report, page 6 | 4.57 ppb | None set | None | No health limit |
| Dibromochloromethaneaverage · range 2.76 to 4.79 · 2025 report, page 6 | 3.5 ppb | 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 Red Oak’s water between Aug 2023 and Apr 2024. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- PFBS4.9 pptFound in 3 of 4 samples · highest resultNo federal limit in force for this one
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: Copper, Lead
What removes it: Reverse osmosis or Certified carbon block or RO.
More districts: Texas water quality · All states · Something look wrong? Tell us