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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Zachary Water System

Monochloroacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

MORE ABOUT THIS CONTAMINANT

 

192

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND320ND
2015ND320ND
2016ND320ND
20170.178 ppb328ND - 1.10 ppb
2018ND320ND
2019ND320ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 53 ppb

The EWG Health Guideline of 53 ppb for monochloroacetic acid was proposed in 2020 by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk.. This health guideline protects against system toxicity.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-03680-98429-12ND
2014-02-03680-98429-14ND
2014-02-03680-98429-15ND
2014-02-03680-98429-12ND
2014-02-03680-98429-14ND
2014-02-03680-98429-15ND
2014-02-04680-98429-13ND
2014-02-04680-98429-13ND
2014-05-07680-101146-1ND
2014-05-07680-101146-2ND
2014-05-07680-101146-3ND
2014-05-07680-101146-4ND
2014-05-07680-101146-1ND
2014-05-07680-101146-2ND
2014-05-07680-101146-3ND
2014-05-07680-101146-4ND
2014-08-18680-104374-3ND
2014-08-18680-104374-4ND
2014-08-18680-104374-5ND
2014-08-18680-104374-6ND
2014-08-18680-104374-3ND
2014-08-18680-104374-4ND
2014-08-18680-104374-5ND
2014-08-18680-104374-6ND
2014-11-28680-107936-1ND
2014-11-28680-107936-2ND
2014-11-28680-107936-3ND
2014-11-28680-107936-4ND
2014-11-28680-107936-1ND
2014-11-28680-107936-2ND
2014-11-28680-107936-3ND
2014-11-28680-107936-4ND
2015-02-24680-110191-1ND
2015-02-24680-110191-2ND
2015-02-24680-110191-3ND
2015-02-24680-110191-4ND
2015-02-24680-110191-1ND
2015-02-24680-110191-2ND
2015-02-24680-110191-3ND
2015-02-24680-110191-4ND
2015-05-26680-112991-1ND
2015-05-26680-112991-2ND
2015-05-26680-112991-3ND
2015-05-26680-112991-4ND
2015-05-26680-112991-1ND
2015-05-26680-112991-2ND
2015-05-26680-112991-3ND
2015-05-26680-112991-4ND
2015-08-05680-115334-1ND
2015-08-05680-115334-2ND
2015-08-05680-115334-3ND
2015-08-05680-115334-4ND
2015-08-05680-115334-1ND
2015-08-05680-115334-2ND
2015-08-05680-115334-3ND
2015-08-05680-115334-4ND
2015-11-09680-118907-10ND
2015-11-09680-118907-11ND
2015-11-09680-118907-12ND
2015-11-09680-118907-9ND
2015-11-09680-118907-10ND
2015-11-09680-118907-11ND
2015-11-09680-118907-12ND
2015-11-09680-118907-9ND
2016-02-16680-122002-1ND
2016-02-16680-122002-2ND
2016-02-16680-122002-3ND
2016-02-16680-122002-4ND
2016-02-16680-122002-1ND
2016-02-16680-122002-2ND
2016-02-16680-122002-3ND
2016-02-16680-122002-4ND
2016-05-20680-125729-1ND
2016-05-20680-125729-2ND
2016-05-20680-125729-3ND
2016-05-20680-125729-4ND
2016-05-20680-125729-1ND
2016-05-20680-125729-2ND
2016-05-20680-125729-3ND
2016-05-20680-125729-4ND
2016-08-09680-128555-1ND
2016-08-09680-128555-2ND
2016-08-09680-128555-3ND
2016-08-09680-128555-4ND
2016-08-09680-128555-1ND
2016-08-09680-128555-2ND
2016-08-09680-128555-3ND
2016-08-09680-128555-4ND
2016-11-07680-131872-1ND
2016-11-07680-131872-2ND
2016-11-07680-131872-3ND
2016-11-07680-131872-4ND
2016-11-07680-131872-1ND
2016-11-07680-131872-2ND
2016-11-07680-131872-3ND
2016-11-07680-131872-4ND
2017-02-0935294573002ND
2017-02-0935294573003ND
2017-02-0935294573004ND
2017-02-0935294573005ND
2017-02-0935294573002ND
2017-02-0935294573003ND
2017-02-0935294573004ND
2017-02-0935294573005ND
2017-05-0535310607001ND
2017-05-0535310607002ND
2017-05-0535310607003ND
2017-05-0535310607004ND
2017-05-0535310607001ND
2017-05-0535310607002ND
2017-05-0535310607003ND
2017-05-0535310607004ND
2017-08-1035330068001ND
2017-08-1035330068002ND
2017-08-1035330068003ND
2017-08-10353300680041.10 ppb
2017-08-1035330068001ND
2017-08-1035330068002ND
2017-08-1035330068003ND
2017-08-10353300680041.10 ppb
2017-11-02353462390010.550 ppb
2017-11-02353462390020.710 ppb
2017-11-02353462390030.480 ppb
2017-11-0235346239004ND
2017-11-02353462390010.550 ppb
2017-11-02353462390020.710 ppb
2017-11-02353462390030.480 ppb
2017-11-0235346239004ND
2018-02-0135371906001ND
2018-02-0135371906002ND
2018-02-0135371906003ND
2018-02-0135371906004ND
2018-02-0135371906001ND
2018-02-0135371906002ND
2018-02-0135371906003ND
2018-02-0135371906004ND
2018-05-0435390335001ND
2018-05-0435390335002ND
2018-05-0435390335003ND
2018-05-0435390335004ND
2018-05-0435390335001ND
2018-05-0435390335002ND
2018-05-0435390335003ND
2018-05-0435390335004ND
2018-08-1735412007001ND
2018-08-1735412007002ND
2018-08-1735412007003ND
2018-08-1735412007004ND
2018-08-1735412007001ND
2018-08-1735412007002ND
2018-08-1735412007003ND
2018-08-1735412007004ND
2018-11-0235428205001ND
2018-11-0235428205002ND
2018-11-0235428205003ND
2018-11-0235428205004ND
2018-11-0235428205001ND
2018-11-0235428205002ND
2018-11-0235428205003ND
2018-11-0235428205004ND
2019-02-0135445755001ND
2019-02-0135445755002ND
2019-02-0135445755003ND
2019-02-0135445755004ND
2019-02-0135445755001ND
2019-02-0135445755002ND
2019-02-0135445755003ND
2019-02-0135445755004ND
2019-05-0135465408001ND
2019-05-0135465408002ND
2019-05-0135465408003ND
2019-05-0135465408004ND
2019-05-0135465408001ND
2019-05-0135465408002ND
2019-05-0135465408003ND
2019-05-0135465408004ND
2019-08-1935493980001ND
2019-08-1935493980002ND
2019-08-1935493980003ND
2019-08-1935493980004ND
2019-08-1935493980001ND
2019-08-1935493980002ND
2019-08-1935493980003ND
2019-08-1935493980004ND
2019-11-0535510875001ND
2019-11-0535510875002ND
2019-11-0535510875003ND
2019-11-0535510875004ND
2019-11-0535510875001ND
2019-11-0535510875002ND
2019-11-0535510875003ND
2019-11-0535510875004ND