Disinfection byproducts · 2023
TTHM in Sweetwater Authority — Chula Vista, Ca, CA tap water
Sweetwater Authority — Chula Vista, Ca, CA's 2023 Consumer Confidence Report shows TTHM at or above the federal limit. Measured value is 1.1× the threshold.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Reported level Treated1 Sweetwater Authority Drinking Water | 53.4 ug/L | None set |
Reported level Treated1 Sweetwater Authority Drinking Water | 4.6–85.46 ug/L | None set |
Verbatim from Sweetwater Authority — Chula Vista, Ca, CA'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 Sweetwater Authority — Chula Vista, Ca, CA compares
3 of the 250 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 Sweetwater Authority — Chula Vista, Ca, CA tap water?
Yes — Sweetwater Authority — Chula Vista, Ca, CA's 2023 Consumer Confidence Report lists TTHM at 4.6–85.46 ug/L. Sweetwater Authority — Chula Vista, Ca, CA's 2023 Consumer Confidence Report shows TTHM at or above the federal limit. Measured value is 1.1× the threshold.
+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 250 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, Crestline Village Cwd - Division 10 — Crestline, Ca, CA, Westmorland, City of — Westmorland, Ca, CA.
+Where does this TTHM measurement come from?
This page reproduces the TTHM entry from the 2023 Consumer Confidence Report published by the Sweetwater Authority — Chula Vista, 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/sweetwater-authority-chula-vista-ca/2023/source.