Clearwater Water System Water Quality (Florida) – 2025 Report Results

We read 14 results from Clearwater Water System’s 2025 water quality report. No results over a legal limit; 6 above a health goal or guideline.

Serves about 115,000 people · Water system ID FL6520336 · 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
Bromatehighest running annual average · range 0.28 to 2.5 · City of Clearwater · 2025 report, page 5	2.5 ppb	0.1 ppb	10 ppb	Above the health goal25x the health goal
Copper90th percentile of homes tested, 0 over the action level · sampled 2023 · Customer taps · 2025 report, page 6	0.34 ppm	0.3 ppm	1.3 ppm (action level)	Above the health goal1.1x the health goal
Lead90th percentile of homes tested, 2 over the action level · sampled 2023 · Customer taps · 2025 report, page 6	1.2 ppb	0.2 ppb	15 ppb (action level)	Above the health goal6x the health goal
PFOA (a PFAS)single sample · RO Plant 1 · 2025 report, page 6	2.6 ppt	0.007 ppt	4 ppt from 2029	Above the health goal371x the health goal
PFOS (a PFAS)single sample · RO Plant 1 · 2025 report, page 6	4.4 ppt	1 ppt	4 ppt from 2029	Above the federal limit that takes effect in 20291.1x 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.
Radium (combined 226 + 228)highest measured · range ND to 1.15 · sampled 2024 · City of Clearwater · 2025 report, page 4	1.15 pCi/L	0 pCi/L	5 pCi/L	Above the health goalThe health goal is zero
Bariumhighest measured · City of Clearwater · 2025 report, page 4	0.02 ppm	2 ppm	2 ppm	Below the health goal
DEHP (a phthalate)single sample · City of Clearwater · 2025 report, page 5	0.47 ppb	12 ppb	6 ppb	Below the health goal
Disinfection byproducts (HAA5)highest running annual average · range 5.3 to 55.2 · City of Clearwater · 2025 report, page 5	32.5 ppb	None set	60 ppb	Below the legal limit
Disinfection byproducts (TTHM)highest running annual average · range 32 to 68.8 · City of Clearwater · 2025 report, page 5	68 ppb	None set	80 ppb	Below the legal limit
E. colias reported · Distribution system · 2025 report, page 4	Not detected	0 positive samples	0 positive samples	Not detected
Fluoridehighest measured · range 0.36 to 0.51 · City of Clearwater · 2025 report, page 4	0.51 ppm	1 ppm	4 ppm	Below the health goal
Nitrate (as N)highest measured · range 0.03 to 0.28 · City of Clearwater · 2025 report, page 4	0.28 ppm	10 ppm	10 ppm	Below the health goal
PFBS (a PFAS)single sample · RO Plant 1 · 2025 report, page 6	2.5 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. 2 numbers we weren’t sure about are held back until a person checks.

EPA testing for PFAS and lithium

EPA’s own nationwide testing (UCMR 5) found these in Clearwater Water System’s water between Jul 2024 and May 2025. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.

PFOS5.9 pptFound in 1 of 28 samples · highest resultAbove the federal limit that takes effect in 2029 (4 ppt)
PFBS3 pptFound in 1 of 28 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.