Disinfection byproducts · 2024
HAA5 in Stamford, CT tap water
Stamford, CT's 2024 HAA5 level is between 80% and 100% of the federal limit (60 ug/L MCL) — measured but not in violation.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average System-wide | 43 ug/L | 60 ug/L MCL |
Range System-wide | 1–52 ug/L | 60 ug/L MCL |
Average System-wide | 51 ug/L | 60 ug/L MCL |
Range System-wide | 6–62 ug/L | 60 ug/L MCL |
Verbatim from Stamford, CT's 2024 Consumer Confidence Report — source document ↗
About HAA5
Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter.
Long-term exposure above the federal limit is associated with an increased cancer risk.
People also ask
+Is there HAA5 in Stamford, CT tap water?
Yes — Stamford, CT's 2024 Consumer Confidence Report lists HAA5 at 51 ug/L. Stamford, CT's 2024 HAA5 level is between 80% and 100% of the federal limit (60 ug/L MCL) — measured but not in violation.
+What's the federal limit for HAA5 in drinking water?
The federal MCL for HAA5 is 60 ug/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+What is HAA5?
Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. Long-term exposure above the federal limit is associated with an increased cancer risk.
+Where does this HAA5 measurement come from?
This page reproduces the HAA5 entry from the 2024 Consumer Confidence Report published by the Stamford, CT 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/ct/stamford/2024/source.