Disinfection byproducts · 2023
TTHM in Lopez Project — San Luis Obispo, Ca, CA tap water
Lopez Project — San Luis Obispo, Ca, CA's 2023 TTHM measurement is below the federal limit.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Range Delivered Water | 34–110 ug/L | None set |
Average Lopez WTP Treated Water | 38.4 ug/L | None set |
Range Distribution Range detected | 34.3–59 ug/L | None set |
Average Distribution Average detected (LRAA High) | 44.8 ug/L | None set |
Average Delivered Water | 46.5 ug/L | None set |
Range Lopez WTP Treated Water | 29–76 ug/L | None set |
Verbatim from Lopez Project — San Luis Obispo, 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 Lopez Project — San Luis Obispo, 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 Lopez Project — San Luis Obispo, Ca, CA tap water?
Yes — Lopez Project — San Luis Obispo, Ca, CA's 2023 Consumer Confidence Report lists TTHM at 46.5 ug/L. Lopez Project — San Luis Obispo, Ca, CA'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.
+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 Lopez Project — San Luis Obispo, 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/lopez-project-san-luis-obispo-ca/2023/source.