City of Kerrville water quality

Updated 2026-10-22 · Texas · Affiliate disclosure

We read 16 results from City of Kerrville’s 2025 water quality report. No results over a legal limit; 7 above a health goal or guideline.

Serves about 23,489 people · Water system ID TX1330001 · 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.

ContaminantResultHealth goalLegal limitWhat it means
Fluoridehighest measured · range 0.16 to 1.02 · Water production plant · 2025 report, page 81.02 ppm1 ppm4 ppmAbove the health goal1x the health goal
Gross alpha (radioactivity)highest measured · range 3 to 13 · Water production plant · 2025 report, page 813 pCi/L0 pCi/L15 pCi/LAbove the health goalThe health goal is zero
Gross beta (radioactivity)highest measured · range 5.8 to 10.6 · Water production plant · 2025 report, page 810.6 pCi/L0 pCi/L50 pCi/LAbove the health goalThe health goal is zero
Radium (combined 226 + 228)highest measured · range 1.04 to 3.91 · Water production plant · 2025 report, page 83.91 pCi/L0 pCi/L5 pCi/LAbove the health goalThe health goal is zero
Radium-226highest measured · range ND to 2.65 · Water production plant · 2025 report, page 82.65 pCi/L0.05 pCi/L5 pCi/LAbove the health goal53x the health goal
Radium-228highest measured · range ND to 1.26 · Water production plant · 2025 report, page 81.26 pCi/L0.02 pCi/L5 pCi/LAbove the health goal66x the health goal
Uraniumhighest measured · range 2 to 4.1 · Water production plant · 2025 report, page 84.1 ppb0.6 ppb30 ppbAbove the health goal6.8x the health goal
Bariumhighest measured · range 0.04 to 0.15 · Water production plant · 2025 report, page 80.15 ppm2 ppm2 ppmBelow the health goal
Chlorineaverage · range 0.6 to 3.4 · Distribution system · 2025 report, page 81.8 ppmNone set4 ppmBelow the legal limit
Copper90th percentile of homes tested, 0 over the action level · sampled 2023 · Customer taps · 2025 report, page 40.17 ppm0.3 ppm1.3 ppm (action level)Below the health goal
DEHP (a phthalate)highest measured · range ND to 5.2 · Water production plant · 2025 report, page 85.2 ppb12 ppb6 ppbBelow the health goal
Disinfection byproducts (HAA5)highest running annual average · range ND to 10.5 · 725 Moore St · 2025 report, page 713 ppbNone set60 ppbBelow the legal limit
Disinfection byproducts (TTHM)highest running annual average · 725 Moore St · 2025 report, page 750 ppbNone set80 ppbBelow the legal limit
Nitrate (as N)highest measured · range ND to 0.11 · Water production plant · 2025 report, page 80.11 ppm10 ppm10 ppmBelow the health goal
Turbidity (cloudiness)highest measured · Surface Water Treatment Plant · 2025 report, page 90.5 NTUNone set1 NTUBelow the legal limit
Dibromochloromethanehighest measured · range ND to 20.9 · Water production plant · 2025 report, page 820.9 ppbNone setNoneNo 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 Kerrville’s water between Jan 2023 and Oct 2023. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.

  • Lithium33.4 ppbFound in 15 of 20 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.

Fluoride

Found: Fluoride

What removes it: Reverse osmosis.

See filters that remove itDo water filters remove fluoride?

Radium and uranium

Found: Gross alpha (radioactivity), Gross beta (radioactivity), Radium (combined 226 + 228), Radium-226, Radium-228, Uranium

What removes it: Reverse osmosis.

See filters that remove it

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