Disinfection byproducts · 2023

HAA5 in Rowland Water District — Rowland Heights, Ca, CA tap water

Within the federal limit· 0.5× the limit

Rowland Water District — Rowland Heights, Ca, CA's 2023 HAA5 measurement is below the federal limit of 60 ug/L (MCL).

The measurement

StatisticValue
Reported level
Imported Surface Water Weymouth (MWD)
2.1–30.6 ug/L
Reported level
Imported Surface Water Miramar (TVMWD)
2.1–30.6 ug/L
Reported level
Ground Water Miramar (TVMWD)
2.1–30.6 ug/L
Reported level
Imported Ground Water (CDWC)
2.1–30.6 ug/L
Reported level
Imported Surface Water Weymouth (MWD)
12.32 ug/L
Reported level
Imported Surface Water Miramar (TVMWD)
12.32 ug/L
Reported level
Ground Water Miramar (TVMWD)
12.32 ug/L
Reported level
Imported Ground Water (CDWC)
12.32 ug/L

Verbatim from Rowland Water District — Rowland Heights, 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 Rowland Water District — Rowland Heights, Ca, CA compares

2 of the 241 CA 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 Rowland Water District — Rowland Heights, Ca, CA tap water?

Yes — Rowland Water District — Rowland Heights, Ca, CA's 2023 Consumer Confidence Report lists HAA5 at 2.1–30.6 ug/L. Rowland Water District — Rowland Heights, Ca, CA's 2023 HAA5 measurement is below the federal limit of 60 ug/L (MCL).

+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.

+Which other U.S. cities have HAA5 over the federal limit?

2 of the 241 CA systems on The Water Map measuring HAA5 report it at or above the federal limit. Examples include Sweetwater Authority — Chula Vista, Ca, CA, St. Helena, City of — St. Helena, Ca, CA.

+Where does this HAA5 measurement come from?

This page reproduces the HAA5 entry from the 2023 Consumer Confidence Report published by the Rowland Water District — Rowland Heights, 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/rowland-water-district-rowland-heights-ca/2023/source.

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