TDS is the total of all dissolved minerals in the water (calcium, sodium, chloride, sulfate, and more). It is a general measure of mineral content, regulated for taste.
In Florida, it was reported by 1,066 community water systems serving about 4,533,958 people. Every reported reading was at or below the federal legal limit.
The highest reading relative to the limit was at Collier County Regional WTP in Collier County, at 4180% of it.
Where it comes from: Natural minerals in the source water.
Enforceable. A utility must stay at or under this.
Health-based, not enforceable. Often lower than the limit, sometimes zero.
California has not published a PHG for this substance.
Health effects the EPA associates with it: Not a health concern. High TDS can make water taste salty, bitter, or metallic and can leave spots and scale.
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 1,066 systems that reported Total Dissolved Solids (TDS).
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.