Disinfection byproducts · 2023

HAA5 in Commerce-city, Water Dept. — San Jose, Ca, CA tap water

Within the federal limit· 0.3× the limit

Commerce-city, Water Dept. — San Jose, Ca, CA's 2023 HAA5 measurement is below the federal limit.

The measurement

StatisticValue
Range
Distribution System
0–23 ug/L
Average
Annual Average
6.2 ug/L
Range
System-wide
0–13 ug/L
Range
Diemer Plant
0–9.5 ug/L
Running annual avg
Mills Plant
13 ug/L
Running annual avg
Skinner Plant
12 ug/L
Range
Jensen Plant
1.3–5 ug/L
Range
Skinner Plant
1.2–23 ug/L
Running annual avg
Diemer Plant
19 ug/L
Range
Mills Plant
0–5.7 ug/L
Running annual avg
Distribution System Highest LRAA
19 ug/L
Range
Weymouth Plant
0–4.2 ug/L
Running annual avg
Jensen Plant
5.6 ug/L
Running annual avg
Weymouth Plant
6.2 ug/L

Verbatim from Commerce-city, Water Dept. — San Jose, 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 Commerce-city, Water Dept. — San Jose, 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 Commerce-city, Water Dept. — San Jose, Ca, CA tap water?

Yes — Commerce-city, Water Dept. — San Jose, Ca, CA's 2023 Consumer Confidence Report lists HAA5 at 19 ug/L. Commerce-city, Water Dept. — San Jose, 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 Commerce-city, Water Dept. — San Jose, 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/commerce-city-water-dept-san-jose-ca/2023/source.

Full report
All Commerce-city, Water Dept. — San Jose, Ca, CA water-quality data →
Every contaminant measured in the 2023 report.
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Every public water system measuring HAA5, ranked.