Chloride is a salt that occurs naturally and rises near the coast from saltwater. It is regulated for taste, not health.
In Florida, Chloride was reported by 1,063 community water systems serving about 4,006,706 people. Every reported reading was at or below the federal legal limit. It was measured by 2,055 systems in all, so it was detected in 52% of the systems that tested for it.
The highest reading relative to the limit was at Collier County Regional WTP in Collier County, at 3928% of it.
Where it comes from: Natural deposits; saltwater intrusion; road salt; softeners.
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 at these levels. High chloride gives water a salty taste and can speed up corrosion of plumbing.
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 1,063 systems that reported Chloride.
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.