Disinfection byproducts · 2024
TTHM in Ucmr5 — Aurora (2024), IL tap water
Ucmr5 — Aurora (2024), IL's 2024 TTHM level is between 80% and 100% of the federal limit — measured but not in violation.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Reported level System-wide | 54 ug/L | None set |
Range System-wide | 31.3–74.9 ug/L | None set |
Verbatim from Ucmr5 — Aurora (2024), IL's 2024 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 Ucmr5 — Aurora (2024), IL compares
5 of the 1177 systems measuring TTHM on The Water Map have it at or above the federal limit:
People also ask
+Is there TTHM in Ucmr5 — Aurora (2024), IL tap water?
Yes — Ucmr5 — Aurora (2024), IL's 2024 Consumer Confidence Report lists TTHM at 31.3–74.9 ug/L. Ucmr5 — Aurora (2024), IL's 2024 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?
5 of the 1177 systems on The Water Map measuring TTHM report it at or above the federal limit. Examples include Jackson, MS, Pittsburgh, PA, Freedom District, MD.
+Where does this TTHM measurement come from?
This page reproduces the TTHM entry from the 2024 Consumer Confidence Report published by the Ucmr5 — Aurora (2024), IL 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/il/ucmr5-aurora-2024/2024/source.