Uranium is a naturally occurring radioactive metal that erodes from rock into groundwater.
In Florida, Uranium was reported by 240 community water systems serving about 668,516 people. 1 of those readings were above the federal legal limit, together serving 400 people. It was measured by 1,559 systems in all, so it was detected in 15% of the systems that tested for it.
The highest reading relative to the limit was at Oak Park Mobile Home Village in Lee County, at 953% of it.
Where it comes from: Erosion of natural deposits.
Enforceable. A utility must stay at or under this.
Health-based, not enforceable. Often lower than the limit, sometimes zero.
California OEHHA PHG (2001)
Health effects the EPA associates with it: May increase the risk of cancer. Kidney damage.
Water at or under the legal limit meets federal safety standards. A reading above a health goal is not the same as being unsafe, and health goals are set purely on health without regard to cost or treatability. Both are shown so the margin is visible either way.
Showing the 25 highest of 240 systems that reported Uranium.
These figures describe water as delivered by each utility, not what your home’s plumbing adds after it arrives. Informational; not a substitute for testing your own tap.