Town of Longboat Key is a public drinking-water system serving about 7,098 people in Manatee County, Florida.
HAA5 (Haloacetic Acids) was detected in this system’s water. EPA states its health effects: may increase the risk of cancer.
TTHM (Total Trihalomethanes) was detected in this system’s water. EPA states its health effects: may increase the risk of cancer; liver, kidney, or central nervous system effects.
PFBA was detected, one of the forever chemicals that do not break down in the body or in the environment. EPA states the health effects: no federal drinking-water limit has been set. EPA links PFAS exposure generally to decreased immune response, increased cholesterol, and developmental effects.
It serves Longboat Key.
It uses surface water as its source.
Utilities report a rotating subset of contaminants each year under state monitoring schedules, so only a few measured results appear in any single year's report. The full list of what was tested and not found is below.
PFAS · EPA UCMR5 monitoring
These were genuinely sampled, because EPA required it. Of 29 PFAS “forever chemicals” tested under the UCMR5 program, 1 were detected (shown above) and 28 were not:
Regulated contaminants · no result on record
Federally regulated contaminants with no reading on record for this system. A missing reading can mean the sample came back clean, or that nobody was required to take one. The published data does not say which, and smaller systems monitor many of these only once every few years:
Town of Longboat Key took 138 bacteria samples from its distribution system in 2023. One came back positive.
| Date sampled | Found |
|---|---|
| June 28, 2023 | total coliform |
From FDEP’s microbiological report, 2023. These are samples taken from the distribution system, the water in the pipes on the way to you, and not untreated source water. A positive sample is normally followed by repeat samples, and where those come back clean no violation is recorded, which is why findings like these do not appear in a compliance history.
FDEP records 1 treatment process here, under one heading, at each of this system’s 2 plants.
From FDEP’s treatment facility report, 2023. It lists what each plant is equipped to do, which is not the same as what any single process removes on a given day, and treatment happens before the water reaches your service line or your own plumbing. FDEP counts plants separately even where they stand on one site and run at the same time, and their output mixes in the distribution system. A count here says how many of this system’s plants include a step, not which homes receive it.
We measure what is actually coming out of your taps - hardness, iron, pH, TDS, PFAS, and whatever your own plumbing adds - the things a utility report can never show.
We walk you through exactly what is there and what it affects: your skin, your pipes, your appliances, and the taste. Measured at your tap, not at the plant.
Based on your results, we recommend the treatment that fits your water - a softener, reverse osmosis, or whole-home filtration - and nothing you do not need.
These figures describe the water your utility delivers, drawn from public federal and state records - not our own lab samples, and not what your home’s plumbing adds after the water arrives. Informational; not a substitute for testing your own tap.