Disinfection byproducts · 2024
TTHM in Shreveport, LA tap water
Shreveport, LA's 2024 Consumer Confidence Report shows TTHM at or above the federal limit (80 ug/L MCL). Measured value is 1.1× the threshold.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Reported level System-wide | 51 ug/L | 80 ug/L MCL |
Range System-wide | 12–85 ug/L | 80 ug/L MCL |
Verbatim from Shreveport, LA's 2024 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 Shreveport, LA compares
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People also ask
+Is there TTHM in Shreveport, LA tap water?
Yes — Shreveport, LA's 2024 Consumer Confidence Report lists TTHM at 12–85 ug/L. Shreveport, LA's 2024 Consumer Confidence Report shows TTHM at or above the federal limit (80 ug/L MCL). Measured value is 1.1× the threshold.
+What's the federal limit for TTHM in drinking water?
The federal MCL for TTHM is 80 ug/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+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.
+Where does this TTHM measurement come from?
This page reproduces the TTHM entry from the 2024 Consumer Confidence Report published by the Shreveport, LA 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/la/shreveport/2024/source.