Mdwasa - Main System Water Quality (Florida) – 2025 Report Results

We read 14 results from Mdwasa - Main System’s 2025 water quality report. No results over a legal limit; 4 above a health goal or guideline.

Serves about 2,300,000 people · Water system ID FL4130871 · 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
Arsenichighest measured · range 0.6 to 1 · Main System · 2025 report, page 8	1 ppb	0.004 ppb	10 ppb	Above the health goal250x the health goal
Lead90th percentile of 102 homes tested, 1 over the action level · Customer taps (102 homes) · 2025 report, page 8	3.2 ppb	0.2 ppb	15 ppb (action level)	Above the health goal16x the health goal
Radium (combined 226 + 228)highest measured · range ND to 1 · Main System · 2025 report, page 8	1 pCi/L	0 pCi/L	5 pCi/L	Above the health goalThe health goal is zero
Uraniumhighest measured · range ND to 1 · Main System · 2025 report, page 8	1 ppb	0.6 ppb	30 ppb	Above the health goal1.7x the health goal
Atrazinehighest measured · range ND to 0.02 · Main System · 2025 report, page 8	0.02 ppb	0.15 ppb	3 ppb	Below the health goal
Bariumhighest measured · range 0.004 to 0.006 · Main System · 2025 report, page 8	0.006 ppm	2 ppm	2 ppm	Below the health goal
Chloraminehighest running annual average · range ND to 4 · Main System distribution · 2025 report, page 8	2.5 ppm	None set	4 ppm	Below the legal limit
Copper90th percentile of 102 homes tested, 0 over the action level · Customer taps (102 homes) · 2025 report, page 8	0.07 ppm	0.3 ppm	1.3 ppm (action level)	Below the health goal
Disinfection byproducts (HAA5)highest running annual average · range 10 to 43 · Main System distribution · 2025 report, page 8	34 ppb	None set	60 ppb	Below the legal limit
Disinfection byproducts (TTHM)highest running annual average · range 9 to 59 · Main System distribution · 2025 report, page 8	50 ppb	None set	80 ppb	Below the legal limit
Fluoridehighest measured · range 0.1 to 1 · Main System · 2025 report, page 8	1 ppm	1 ppm	4 ppm	Below the health goal
Nitrate (as N)highest measured · range 0.01 to 0.3 · Main System · 2025 report, page 8	0.3 ppm	10 ppm	10 ppm	Below the health goal
Nitrite (as N)highest measured · range ND to 0.02 · Main System · 2025 report, page 8	0.02 ppm	1 ppm	1 ppm	Below the health goal
Sodiumhighest measured · range 23 to 33 · Main System · 2025 report, page 8	33 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.

EPA testing for PFAS and lithium

EPA’s own nationwide testing (UCMR 5) found these in Mdwasa - Main System’s water between Nov 2023 and May 2024. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.

PFOA14 pptFound in 6 of 8 samples · highest resultAbove the federal limit that takes effect in 2029 (4 ppt)
PFOS33 pptFound in 6 of 8 samples · highest resultAbove the federal limit that takes effect in 2029 (4 ppt)
PFHxS9.4 pptFound in 3 of 8 samples · highest resultNo federal limit in force for this one
PFNA6.5 pptFound in 2 of 8 samples · highest resultNo federal limit in force for this one
PFBS4.6 pptFound in 6 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.