We read 13 results from Clermont Public Water System’s 2025 water quality report. No results over a legal limit; 4 above a health goal or guideline.
Serves about 134,568 people · Water system ID OH1302212 · 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 |
|---|---|---|---|---|
| Copper90th percentile of 52 homes tested, 1 over the action level · listed as a violation in the report · sampled 2023 · Customer taps (county, 52 samples) · 2025 report, page 6 | 0.6 ppm | 0.3 ppm | 1.3 ppm (action level) | Above the health goal2x the health goal |
| Lead90th percentile of 52 homes tested, 0 over the action level · listed as a violation in the report · sampled 2023 · Customer taps (county, 52 samples) · 2025 report, page 6 | 2.1 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal11x the health goal |
| PFOA (a PFAS)single sample · PUB water plant · 2025 report, page 8 | 4.13 ppt | 0.007 ppt | 4 ppt from 2029 | Above the federal limit that takes effect in 20291x 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)single sample · MGS water plant · 2025 report, page 8 | 10.9 ppt | 1 ppt | 4 ppt from 2029 | Above the federal limit that takes effect in 20292.7x 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 0.03 to 0.04 · listed as a violation in the report · Entry points · 2025 report, page 6 | 0.03 ppm | 2 ppm | 2 ppm | Below the health goal |
| Berylliumhighest measured · range ND to 0.1 · listed as a violation in the report · Entry points · 2025 report, page 6 | 0.06 ppb | 1 ppb | 4 ppb | Below the health goal |
| Chloraminehighest running annual average · range 1.04 to 1.34 · listed as a violation in the report · Distribution system · 2025 report, page 6 | 1.2 ppm | None set | 4 ppm | Below the legal limit |
| Disinfection byproducts (HAA5)highest running annual average · range 2.8 to 40.8 · listed as a violation in the report · Distribution system · 2025 report, page 6 | 27.8 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 11.6 to 113 · listed as a violation in the report · Distribution system · 2025 report, page 6 | 73.3 ppb | None set | 80 ppb | Below the legal limit |
| Fluoridehighest measured · range 0.1 to 1.3 · listed as a violation in the report · Entry points · 2025 report, page 6 | 0.99 ppm | 1 ppm | 4 ppm | Below the health goal |
| Nitrate (as N)highest measured · range ND to 1.32 · listed as a violation in the report · Entry points · 2025 report, page 6 | 1.32 ppm | 10 ppm | 10 ppm | Below the health goal |
| PFHxS (a PFAS)single sample · MGS water plant · 2025 report, page 8 | 3.12 ppt | None set | 10 ppt from 2029 | Below the legal limit |
| Turbidity (cloudiness)highest measured · range 0.02 to 0.34 · listed as a violation in the report · Treatment plants · 2025 report, page 6 | 0.34 NTU | None set | 1 NTU | Below the legal 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 Clermont Public Water System’s water between Sep 2024 and Jun 2025. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- PFOS10.1 pptFound in 2 of 8 samples · highest resultAbove the federal limit that takes effect in 2029 (4 ppt)
- PFBS3.1 pptFound in 1 of 8 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.
PFAS ("forever chemicals")
Found: PFOA (a PFAS), PFOS (a PFAS), PFOS (EPA testing)
What removes it: Reverse osmosis.
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