GOVERNMENT RECORD
EPA National Primary Drinking Water Regulations, Total Trihalomethanes
About this source
EPA's National Primary Drinking Water Regulations identify Total Trihalomethanes as a regulated disinfection byproduct, set the maximum contaminant level at 0.080 mg/L, and describe potential health effects associated with long-term exposure above the MCL.
- Source type
- Government record
- Source classification
- Primary source
- Source date
- Not established in the reviewed record
Relevant excerpt / notes
EPA lists liver, kidney or central nervous system problems and increased cancer risk as potential health effects from long-term exposure above the MCL. TTHMs are a byproduct of drinking-water disinfection.
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Related articles 1
- ExplainerSan Luis Exceeded a Federal Drinking-Water Standard. Here’s What That Actually Means.
The City of San Luis reported two TTHM locational running annual averages above the federal standard, while saying the incident was not an emergency and that additional samples were below the limit.