Disinfection byproducts · 2023
TTHM in City of Grover Beach Public Works Dept — Grover Beach, Ca, CA tap water
City of Grover Beach Public Works Dept — Grover Beach, Ca, CA's 2023 Consumer Confidence Report shows TTHM at or above the federal limit. Measured value is 1.4× the threshold.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average Ground Water (GW) | 31.44 ug/L | None set |
Average Lopez/CCWA Delivered | 34–110 ug/L | None set |
Range Ground Water (GW) | 18–47 ug/L | None set |
Range Ground Water (GW) | 18–47 ug/L | None set |
Average Lopez/CCWA Delivered | 34–110 ug/L | None set |
Range Lopez/CCWA Delivered | 47 ug/L | None set |
Range Lopez/CCWA Delivered | 47 ug/L | None set |
Average Ground Water (GW) | 31.44 ug/L | None set |
Verbatim from City of Grover Beach Public Works Dept — Grover Beach, 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 City of Grover Beach Public Works Dept — Grover Beach, Ca, CA compares
5 of the 1176 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 City of Grover Beach Public Works Dept — Grover Beach, Ca, CA tap water?
Yes — City of Grover Beach Public Works Dept — Grover Beach, Ca, CA's 2023 Consumer Confidence Report lists TTHM at 34–110 ug/L. City of Grover Beach Public Works Dept — Grover Beach, Ca, CA's 2023 Consumer Confidence Report shows TTHM at or above the federal limit. Measured value is 1.4× 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?
5 of the 1176 systems on The Water Map measuring TTHM report it at or above the federal limit. Examples include Calexico, City of — Calexico, Ca, CA, White Fence Farms Mwc No.3 — Lancaster, Ca, CA, Greensboro, NC.
+Where does this TTHM measurement come from?
This page reproduces the TTHM entry from the 2023 Consumer Confidence Report published by the City of Grover Beach Public Works Dept — Grover Beach, 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/grover-beach-public-works-dept-grover-beach-ca/2023/source.