We read 25 results from Lubbock Public Water System’s 2025 water quality report. No results over a legal limit; 5 above a health goal or guideline.
Serves about 275,041 people · Water system ID TX1520002 · 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 |
|---|---|---|---|---|
| Chloriteaverage · range 0.1 to 0.58 · Entry points · 2025 report, page 7 | 0.26 ppm | 0.05 ppm | 1 ppm | Above the health goal5.2x the health goal |
| Gross beta (radioactivity)average · sampled 2023 · Entry points · 2025 report, page 6 | 7 pCi/L | 0 pCi/L | 50 pCi/L | Above the health goalThe health goal is zero |
| Lead90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 7 | 1.36 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal6.8x the health goal |
| Total coliform bacteriahighest month · Distribution system · 2025 report, page 8 | 0.66 % positive | 0 % positive | 5 % positive | Above the health goalThe health goal is zero |
| Total dissolved solidsaverage · range 321 to 991 · Distribution system · 2025 report, page 8 | 633 ppm | — | 500 ppm guideline | Above the guideline1.3x the guideline (taste, odor or stains; not a health limit) |
| Bariumaverage · range 0.09 to 0.19 · Entry points · 2025 report, page 6 | 0.13 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chlorideaverage · range 19 to 315 · Distribution system · 2025 report, page 8 | 179 ppm | — | 250 ppm guideline | Within the guideline |
| Chlorineaverage · range 0.5 to 4.63 · Distribution system · 2025 report, page 7 | 3.51 ppm | None set | 4 ppm | Below the legal limit |
| Chromium (total)average · range 1.3 to 1.9 · Entry points · 2025 report, page 6 | 1.63 ppb | None set | 100 ppb | Below the legal limit |
| Copper90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 7 | 0.14 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Cyanideaverage · Entry points · 2025 report, page 6 | 124 ppb | 150 ppb | 200 ppb | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 2.5 to 13 · Distribution system · 2025 report, page 7 | 7.84 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 8 to 36 · Distribution system · 2025 report, page 7 | 17 ppb | None set | 80 ppb | Below the legal limit |
| Fluorideaverage · range 0.64 to 0.85 · Entry points · 2025 report, page 6 | 0.74 ppm | 1 ppm | 4 ppm | Below the health goal |
| Nitrate (as N)highest measured · Entry points · 2025 report, page 6 | 1.59 ppm | 10 ppm | 10 ppm | Below the health goal |
| PFOA (a PFAS)as reported · sampled 2023 · All plants · 2025 report, page 9 | Not detected | 0.007 ppt | 4 ppt from 2029 | Not detected |
| PFOS (a PFAS)as reported · sampled 2023 · All plants · 2025 report, page 9 | Not detected | 1 ppt | 4 ppt from 2029 | Not detected |
| Sulfateaverage · range 42 to 144 · Distribution system · 2025 report, page 8 | 93 ppm | — | 250 ppm guideline | Within the guideline |
| Turbidity (cloudiness)highest measured · range 0.02 to 0.1 · Treatment plants · 2025 report, page 6 | 0.1 NTU | None set | 1 NTU | Below the legal limit |
| Alkalinityaverage · range 183 to 206 · Distribution system · 2025 report, page 8 | 198 ppm | None set | None | No health limit |
| Calciumaverage · range 18 to 42 · Distribution system · 2025 report, page 8 | 30 ppm | None set | None | No health limit |
| Hardnessaverage · range 4.74 to 14.3 · Distribution system · 2025 report, page 8 | 9.88 gpg (169 ppm) | — | — | Hard |
| Magnesiumaverage · range 9 to 24 · Distribution system · 2025 report, page 8 | 23 ppm | None set | None | No health limit |
| Potassiumaverage · range 4.67 to 7.77 · Distribution system · 2025 report, page 8 | 5.94 ppm | None set | None | No health limit |
| Sodiumaverage · range 36.2 to 260 · Distribution system · 2025 report, page 8 | 158 ppm | 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. 1 number we weren’t sure about is held back until a person checks.
EPA testing for PFAS and lithium
EPA’s own nationwide testing (UCMR 5) found these in Lubbock Public Water System’s water between Sep 2023 and Jun 2024. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- Lithium46.5 ppbFound in 10 of 10 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 beta (radioactivity)
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).
Salty taste / high TDS
Found: Total dissolved solids
What removes it: Reverse osmosis.
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