Aluminum is common in soil and is sometimes used in water treatment. It is regulated for color and cloudiness.
In Florida, Aluminum was reported by 179 community water systems serving about 1,691,185 people. Every reported reading was at or below the federal legal limit.
The highest reading relative to the limit was at Ray Mar MHP in Hillsborough County, at 335% of it.
Where it comes from: Erosion of natural deposits; treatment additive.
Enforceable. A utility must stay at or under this.
Health-based, not enforceable. Often lower than the limit, sometimes zero.
California OEHHA PHG (2001) For comparison the legal limit is 200 ppb.
Health effects the EPA associates with it: Regulated as a secondary (aesthetic) standard for discoloration; not a health-based limit.
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 179 systems that reported Aluminum.
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.