Disinfection byproducts · 2023
TTHM in Chesapeake, VA tap water
Chesapeake, VA's 2023 TTHM measurement is below the federal limit.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Range Nwr & Lg | 10–65 ug/L | None set |
Running annual avg Nwr & Lg | 37 ug/L | None set |
Range P | 31–49 ug/L | None set |
Running annual avg P | 44 ug/L | None set |
Verbatim from Chesapeake, VA'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 Chesapeake, VA compares
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People also ask
+Is there TTHM in Chesapeake, VA tap water?
Yes — Chesapeake, VA's 2023 Consumer Confidence Report lists TTHM at 44 ug/L. Chesapeake, VA's 2023 TTHM measurement is below the federal limit.
+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 2023 Consumer Confidence Report published by the Chesapeake, VA 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/va/chesapeake/2023/source.