Disinfection byproducts · 2024
TTHM in Pearland, TX tap water
Pearland, TX's 2024 TTHM measurement is below the federal limit of 80 ug/L (MCL).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Reported level City of Pearland TX0200008 | 42 ug/L | 80 ug/L MCL |
Range City of Pearland TX0200008 | 0–52.2 ug/L | 80 ug/L MCL |
Reported level City of Pearland MUD1 TX0200411 | 33 ug/L | 80 ug/L MCL |
Range City of Pearland MUD1 TX0200411 | 16.2–44.7 ug/L | 80 ug/L MCL |
Reported level City of Houston TX1010013 | 45 ug/L | 80 ug/L MCL |
Range City of Houston TX1010013 | 0–48.5 ug/L | 80 ug/L MCL |
Verbatim from Pearland, TX'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 Pearland, TX compares
5 of the 22 TX 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 Pearland, TX tap water?
Yes — Pearland, TX's 2024 Consumer Confidence Report lists TTHM at 0–52.2 ug/L. Pearland, TX's 2024 TTHM measurement is below the federal limit of 80 ug/L (MCL).
+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.
+Which other U.S. cities have TTHM over the federal limit?
5 of the 22 TX systems on The Water Map measuring TTHM report it at or above the federal limit. Examples include San Angelo, TX, Laredo, TX, El Paso, TX.
+Where does this TTHM measurement come from?
This page reproduces the TTHM entry from the 2024 Consumer Confidence Report published by the Pearland, TX 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/tx/pearland/2024/source.