We read 15 results from Auburn Water Works’s 2025 water quality report. No results over a legal limit; 4 above a health goal or guideline.
Serves about 65,313 people · Water system ID AL0000804 · Read the district’s 2025 report (opens in a new tab)
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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 |
|---|---|---|---|---|
| Chloritehighest measured · range 0.37 to 0.97 · Opelika Water (purchased) · 2025 report, page 3 | 0.97 ppm | 0.05 ppm | 1 ppm | Above the health goal19x the health goal |
| Fluoridehighest measured · range ND to 1.43 · Treatment plant · 2025 report, page 3 | 1.43 ppm | 1 ppm | 4 ppm | Above the health goal1.4x the health goal |
| PFOA (a PFAS)highest measured · range ND to 12 · Entry points · 2025 report, page 3 | 12 ppt | 0.007 ppt | 4 ppt from 2029 | Above the federal limit that takes effect in 20293x the 4 ppt federal limit that takes effect in 2029Not a violation yet: EPA's 4 ppt limit is final, but water systems don't have to meet it until 2029. |
| PFOS (a PFAS)highest measured · range ND to 7.3 · Entry points · 2025 report, page 3 | 6.4 ppt | 1 ppt | 4 ppt from 2029 | Above the federal limit that takes effect in 20291.6x the 4 ppt federal limit that takes effect in 2029Not a violation yet: EPA's 4 ppt limit is final, but water systems don't have to meet it until 2029. |
| Bariumhighest measured · range 0.02 to 0.02 · Opelika Water (purchased) · 2025 report, page 3 | 0.02 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chlorinehighest running annual average · range 1.3 to 1.7 · Distribution system · 2025 report, page 3 | 1.7 ppm | None set | 4 ppm | Below the legal limit |
| Chromium (total)highest measured · range 0.00042 to 1 · Entry points · 2025 report, page 3 | 1 ppb | None set | 100 ppb | Below the legal limit |
| Copper90th percentile of homes tested · Customer taps · 2025 report, page 3 | 0.2 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 27.3 to 49.4 · Distribution system · 2025 report, page 3 | 49.4 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 39.7 to 63.1 · Distribution system · 2025 report, page 3 | 63.1 ppb | None set | 80 ppb | Below the legal limit |
| Nitrate (as N)highest measured · range 0.12 to 0.46 · Entry points · 2025 report, page 3 | 0.46 ppm | 10 ppm | 10 ppm | Below the health goal |
| Turbidity (cloudiness)highest measured · range 0.02 to 0.26 · Treatment plant · 2025 report, page 3 | 0.26 NTU | None set | 1 NTU | Below the legal limit |
| PFBS (a PFAS)highest measured · range ND to 3.7 · Opelika Water (purchased) · 2025 report, page 3 | 3.7 ppt | None set | None | No health limit |
| PFHpA (a PFAS)highest measured · range ND to 3.1 · Entry points · 2025 report, page 3 | 3.1 ppt | None set | None | No health limit |
| PFHxA (a PFAS)highest measured · range 2.3 to 7.7 · Opelika Water (purchased) · 2025 report, page 3 | 7.7 ppt | 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 Auburn Water Works’s water between Feb 2025 and Nov 2025. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- PFOA12 pptFound in 2 of 8 samples · highest resultAbove the federal limit that takes effect in 2029 (4 ppt)
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.
PFAS ("forever chemicals")
Found: PFOA (a PFAS), PFOS (a PFAS), PFOA (EPA testing)
What removes it: Reverse osmosis.
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