Disinfection byproducts · 2025
TTHM in Bend, OR tap water
Bend, OR's 2025 Consumer Confidence Report tested for TTHM and reported no detectable amount.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Maximum System-wide | Not detected mg/L | None set |
Verbatim from Bend, OR's 2025 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.
People also ask
+Is there TTHM in Bend, OR tap water?
Bend, OR's 2025 Consumer Confidence Report tested for TTHM and found no detectable amount.
+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.
+Where does this TTHM measurement come from?
This page reproduces the TTHM entry from the 2025 Consumer Confidence Report published by the Bend, OR 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/or/bend/2025/source.