Florida Water Report
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Hexachlorocyclopentadiene

Systems reporting it
28
People served
637,307
Over the legal limit
0
Legal limit (MCL)
50 ppb

Overview

An industrial chemical used to make pesticides and flame retardants.

In Florida, Hexachlorocyclopentadiene was found in 28 community water systems serving about 637,307 people. It was measured by 1,559 systems in all, so it was detected in 2% of the systems that tested for it.

The highest reading relative to the limit was at North Springs Improvement District in Broward County, at <1% of it.

Where it comes from: Discharge from chemical factories.

The standards

Legal limit (MCL)
50 ppb

Enforceable. A utility must stay at or under this.

Federal health goal (MCLG)
50 ppb

Health-based, not enforceable. Often lower than the limit, sometimes zero.

California public health goal
2 ppb

California OEHHA PHG (2014).

Health effects the EPA associates with it: Kidney or stomach problems.

The health goal is set on health alone. The legal limit is set as close to it as is technically and economically feasible, so treatment cost and available technology are written into the number a utility is measured against. A system at or under the limit is meeting the standard it is required to meet. Both numbers are shown so the distance between them is visible.

What removes it

Activated carbon is the standard treatment. A carbon block at the drinking tap covers ingestion; a whole-house carbon system covers bathing as well.

Treatment guidance describes the methods generally used for this contaminant. What your own tap actually carries depends on your plumbing and your service line as much as on the utility, which is what a test at the house tells you and an annual report cannot.

Where in Florida

CountySystemsOver limit
Brevard County294,039 people served1NoneBroward County116,921 people served2NonePinellas County115,000 people served1NoneManatee County58,584 people served1NoneNassau County24,318 people served1NoneMartin County16,881 people served2NoneSarasota County3,137 people served5NonePolk County2,905 people served4NoneSt. Johns County2,303 people served1NoneLake County1,500 people served1NoneCharlotte County450 people served1NonePalm Beach County425 people served1NoneDesoto County248 people served1NoneOsceola County235 people served2NoneColumbia County218 people served1NoneCitrus County53 people served1NoneCollier County50 people served1NoneOrange County40 people served1None

Highest reported levels

Water systemReadingOf limit
North Springs Improvement DistrictCoral Springs · Broward County0.276 ppb<1%Big Cypress Park HeadquartersOchopee · Collier County0.22 ppb<1%Stuart, City of - Water PlantStuart · Martin County0.14 ppb<1%Sunrise SpringtreeSunrise · Broward County0.13 ppb<1%Spring Lake Estates LLCLake Wales · Polk County0.12 ppb<1%J & S Fish CampOkeechobee · Martin County0.12 ppb<1%Camelot LakesSarasota · Sarasota County0.11 ppb<1%Lake Correctional InstitutionClermont · Lake County0.11 ppb<1%Kings Gate ClubNokomis · Sarasota County0.1 ppb<1%Venice Ranch Mobile Home EstatesVenice · Sarasota County0.1 ppb<1%Brandon-Brent Heights WTPLake City · Columbia County0.1 ppb<1%Grape HammockLake Wales · Polk County0.1 ppb<1%Cocoa, City ofCocoa · Brevard County0.096 ppb<1%Pleasant Hill VillageKissimmee · Osceola County0.094 ppb<1%Hidden GlenDavenport · Osceola County0.091 ppb<1%Bedrock Towerwood LLCLake Wales · Polk County0.09 ppb<1%Lake Hamilton, Town ofLake Hamilton · Polk County0.089 ppb<1%J&c MHPOrlando · Orange County0.089 ppb<1%Lofton Oaks GridJacksonville · Nassau County0.088 ppb<1%Gospel Island EstatesInverness · Citrus County0.085 ppb<1%City of BradentonBradenton · Manatee County0.076 ppb<1%JEA: Ponce De Leon GridPonte Vedra Beach · St. Johns County0.075 ppb<1%Laurel MHPNokomis · Sarasota County0.038 ppb<1%Clearwater Water SystemClearwater · Pinellas County0.032 ppb<1%Florida Pines Mobile Home ParkVenice · Sarasota County0.03 ppb<1%

Showing the 25 highest of 28 systems that reported Hexachlorocyclopentadiene.

Know when your water changes

We will email you when new readings, violations or health goals land for your system.

Or schedule a water consultation.

Data Sources

EPA SDWISSystem identity, population, countyret. 2026
FDEPFlorida drinking-water chemical monitoringret. 2026
CCREach utility’s own annual reportret. 2026
CA OEHHACalifornia public health goals, the health-based benchmark where one is publishedret. 2026
FWROur own benchmarks, only where no government body has published one, each citing the official source it is built onret. 2026

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.