We read 19 results from City of Houston Ud 5 - Kingwood’s 2025 water quality report. No results over a legal limit; 5 above a health goal or guideline.
Serves about 80,073 people · Water system ID TX1010348 · 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 |
|---|---|---|---|---|
| Gross alpha (radioactivity)single sample · Kingwood water plants · 2025 report, page 10 | 4.4 pCi/L | 0 pCi/L | 15 pCi/L | Above the health goalThe health goal is zero |
| Gross beta (radioactivity)single sample · Kingwood water plants · 2025 report, page 10 | 4.3 pCi/L | 0 pCi/L | 50 pCi/L | Above the health goalThe health goal is zero |
| Lead90th percentile of homes tested, 1 over the action level · sampled 2023 · Customer taps · 2025 report, page 11 | 2 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal10x the health goal |
| Radium (combined 226 + 228)single sample · Kingwood water plants · 2025 report, page 10 | 1.26 pCi/L | 0 pCi/L | 5 pCi/L | Above the health goalThe health goal is zero |
| Total coliform bacteriahighest month · Kingwood distribution · 2025 report, page 10 | 0.99 % positive | 0 % positive | 5 % positive | Above the health goalThe health goal is zero |
| Bariumsingle sample · Kingwood water plants · 2025 report, page 10 | 0.26 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloridesingle sample · Kingwood water plants · 2025 report, page 11 | 28 ppm | — | 250 ppm guideline | Within the guideline |
| Chlorineaverage · range 0.05 to 3.74 · Kingwood distribution · 2025 report, page 10 | 1.65 ppm | None set | 4 ppm | Below the legal limit |
| Copper90th percentile of homes tested, 0 over the action level · sampled 2023 · Customer taps · 2025 report, page 11 | 0.22 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · Kingwood distribution · 2025 report, page 10 | 2.2 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · Kingwood distribution · 2025 report, page 10 | 3.8 ppb | None set | 80 ppb | Below the legal limit |
| Fluoridesingle sample · Kingwood water plants · 2025 report, page 10 | 0.15 ppm | 1 ppm | 4 ppm | Below the health goal |
| Ironsingle sample · Kingwood water plants · 2025 report, page 11 | 0.08 ppm | — | 0.3 ppm guideline | Within the guideline |
| Nitrate (as N)highest measured · Kingwood water plants · 2025 report, page 10 | 0.1 ppm | 10 ppm | 10 ppm | Below the health goal |
| pHsingle sample · Kingwood water plants · 2025 report, page 11 | 7.5 | — | — | Normal range |
| Sulfatesingle sample · Kingwood water plants · 2025 report, page 11 | 11 ppm | — | 250 ppm guideline | Within the guideline |
| Total dissolved solidssingle sample · Kingwood water plants · 2025 report, page 11 | 237 ppm | — | 500 ppm guideline | Within the guideline |
| Hardnesssingle sample · Kingwood water plants · 2025 report, page 11 | 7.25 gpg (124 ppm) | — | — | Hard |
| Lithiumaverage · range 12.1 to 17.5 · sampled 2024 · Kingwood water plants · 2025 report, page 11 | 14.8 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 Houston Ud 5 - Kingwood’s water between Jul 2023 and Jun 2024. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- Lithium17.5 ppbFound in 8 of 12 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.
Radium and uranium
Found: Gross alpha (radioactivity), Gross beta (radioactivity), Radium (combined 226 + 228)
What removes it: Reverse osmosis.
Lead
Found: Lead
What removes it: Certified carbon block or RO.
Bacteria and viruses
Found: Total coliform bacteria
What removes it: UV purification (and tell your utility).
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