Disinfection byproducts · 2021
TTHM in Foothill Municipal Water Dist. — La Canada Flintridge, Ca, CA tap water
Foothill Municipal Water Dist. — La Canada Flintridge, Ca, CA's 2021 TTHM measurement is below the federal limit.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Reported level Weymouth Effluent | 26–35 ug/L | None set |
Reported level Fm-1 | 24–29 ug/L | None set |
Verbatim from Foothill Municipal Water Dist. — La Canada Flintridge, Ca, CA's 2021 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 Foothill Municipal Water Dist. — La Canada Flintridge, Ca, CA compares
4 of the 251 CA 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 Foothill Municipal Water Dist. — La Canada Flintridge, Ca, CA tap water?
Yes — Foothill Municipal Water Dist. — La Canada Flintridge, Ca, CA's 2021 Consumer Confidence Report lists TTHM at 26–35 ug/L. Foothill Municipal Water Dist. — La Canada Flintridge, Ca, CA's 2021 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.
+Which other U.S. cities have TTHM over the federal limit?
4 of the 251 CA systems on The Water Map measuring TTHM report it at or above the federal limit. Examples include Suisun-solano Water Authority — Vacaville, Ca, CA, Sweetwater Authority — Chula Vista, Ca, CA, Crestline Village Cwd - Division 10 — Crestline, Ca, CA.
+Where does this TTHM measurement come from?
This page reproduces the TTHM entry from the 2021 Consumer Confidence Report published by the Foothill Municipal Water Dist. — La Canada Flintridge, Ca, CA 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/ca/foothill-municipal-water-dist-la-canada-flintridge-ca/2021/source.