Disinfection byproducts · 2023
HAA5 in Lopez Project — San Luis Obispo, Ca, CA tap water
Lopez Project — San Luis Obispo, Ca, CA's 2023 HAA5 measurement is below the federal limit.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average Distribution Average detected (LRAA High) | 27.9 ug/L | None set |
Range Distribution Range detected | 23.3–29.4 ug/L | None set |
Range Delivered Water | 22–27 ug/L | None set |
Range Lopez WTP Treated Water | 19.3–24.5 ug/L | None set |
Average Lopez WTP Treated Water | 23 ug/L | None set |
Average Delivered Water | 24.6 ug/L | None set |
Verbatim from Lopez Project — San Luis Obispo, Ca, CA's 2023 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.
How Lopez Project — San Luis Obispo, Ca, CA compares
5 of the 1145 systems measuring HAA5 on The Water Map have it at or above the federal limit:
Nearby systems also reporting HAA5:
People also ask
+Is there HAA5 in Lopez Project — San Luis Obispo, Ca, CA tap water?
Yes — Lopez Project — San Luis Obispo, Ca, CA's 2023 Consumer Confidence Report lists HAA5 at 27.9 ug/L. Lopez Project — San Luis Obispo, Ca, CA's 2023 HAA5 measurement is below the federal limit.
+What's the federal limit for HAA5 in drinking water?
The EPA has not set an enforceable federal limit for HAA5. Utilities still report any measured levels in their annual Consumer Confidence Report.
+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.
+Which other U.S. cities have HAA5 over the federal limit?
5 of the 1145 systems on The Water Map measuring HAA5 report it at or above the federal limit. Examples include City of Roseville — Roseville, Ca, CA, Tejon Castac Wd - I5 & Laval Rd — Lebec, Ca, CA, Helendale Community Service District — Helendale, Ca, CA.
+Where does this HAA5 measurement come from?
This page reproduces the HAA5 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.