Disinfection byproducts · 2023
TTHM in Miami Dade, FL tap water
Miami Dade, FL's 2023 TTHM level is between 80% and 100% of the federal limit — measured but not in violation.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Reported level Main System | 10–69 ug/L | None set |
Reported level South Dade Water Supply System | 11–71 ug/L | None set |
Reported level NMB Water | 3–27 ug/L | None set |
Reported level Redavo | 43–54 ug/L | None set |
Reported level NMB Water | 3–27 ug/L | None set |
Reported level Redavo | 43–54 ug/L | None set |
Reported level Main System | 10–69 ug/L | None set |
Reported level South Dade Water Supply System | 11–71 ug/L | None set |
Verbatim from Miami Dade, FL's 2023 Consumer Confidence Report — source document ↗
About TTHM
Total trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter.
Long-term exposure above the federal limit is linked to liver, kidney, and central-nervous-system effects and increased cancer risk.
How Miami Dade, FL compares
3 of the 20 FL systems measuring TTHM on The Water Map have it at or above the federal limit:
Nearby systems also reporting TTHM:
People also ask
+Is there TTHM in Miami Dade, FL tap water?
Yes — Miami Dade, FL's 2023 Consumer Confidence Report lists TTHM at 11–71 ug/L. Miami Dade, FL's 2023 TTHM level is between 80% and 100% of the federal limit — measured but not in violation.
+What's the federal limit for TTHM in drinking water?
The EPA has not set an enforceable federal limit for TTHM. Utilities still report any measured levels in their annual Consumer Confidence Report.
+What is TTHM?
Total trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. Long-term exposure above the federal limit is linked to liver, kidney, and central-nervous-system effects and increased cancer risk.
+Which other U.S. cities have TTHM over the federal limit?
3 of the 20 FL systems on The Water Map measuring TTHM report it at or above the federal limit. Examples include Hollywood, FL, Jacksonville, FL, West Palm Beach, FL.
+Where does this TTHM measurement come from?
This page reproduces the TTHM entry from the 2023 Consumer Confidence Report published by the Miami Dade, FL water utility — the annual drinking-water report every U.S. utility is required by federal law to publish. The original source document is archived at /water/fl/miami-dade/2023/source.