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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

St Bernard Parish Waterworks

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
2013N/A00N/A
20141.34 ppb3224ND - 2.50 ppb
20151.98 ppb3224ND - 10.6 ppb
20166.82 ppb3220ND - 23.4 ppb
20170.956 ppb3216ND - 2.40 ppb
20180.0875 ppb322ND - 1.40 ppb
20190.816 ppb3216ND - 2.20 ppb

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
2014-02-18201165125ND
2014-02-18201165126ND
2014-02-18201165127ND
2014-02-18201165128ND
2014-02-18201165125ND
2014-02-18201165126ND
2014-02-18201165127ND
2014-02-18201165128ND
2014-05-182040280012.30 ppb
2014-05-182040280022.10 ppb
2014-05-182040280032.10 ppb
2014-05-182040280042.50 ppb
2014-05-182040280012.30 ppb
2014-05-182040280022.10 ppb
2014-05-182040280032.10 ppb
2014-05-182040280042.50 ppb
2014-08-262086420011.30 ppb
2014-08-262086420022.20 ppb
2014-08-262086420031.30 ppb
2014-08-262086420041.70 ppb
2014-08-262086420011.30 ppb
2014-08-262086420022.20 ppb
2014-08-262086420031.30 ppb
2014-08-262086420041.70 ppb
2014-11-1420123470011.30 ppb
2014-11-1420123470021.40 ppb
2014-11-1420123470032.10 ppb
2014-11-1420123470041.20 ppb
2014-11-1420123470011.30 ppb
2014-11-1420123470021.40 ppb
2014-11-1420123470032.10 ppb
2014-11-1420123470041.20 ppb
2015-02-0420156810011.30 ppb
2015-02-0420156810021.000 ppb
2015-02-0420156810031.20 ppb
2015-02-0420156810041.80 ppb
2015-02-0420156810011.30 ppb
2015-02-0420156810021.000 ppb
2015-02-0420156810031.20 ppb
2015-02-0420156810041.80 ppb
2015-05-0820196420011.70 ppb
2015-05-0820196420021.70 ppb
2015-05-0820196420031.20 ppb
2015-05-0820196420042.30 ppb
2015-05-0820196420011.70 ppb
2015-05-0820196420021.70 ppb
2015-05-0820196420031.20 ppb
2015-05-0820196420042.30 ppb
2015-08-25202467000110.6 ppb
2015-08-2520246700023.10 ppb
2015-08-2520246700032.40 ppb
2015-08-2520246700043.40 ppb
2015-08-25202467000110.6 ppb
2015-08-2520246700023.10 ppb
2015-08-2520246700032.40 ppb
2015-08-2520246700043.40 ppb
2015-11-162028687001ND
2015-11-162028687002ND
2015-11-162028687003ND
2015-11-162028687004ND
2015-11-162028687001ND
2015-11-162028687002ND
2015-11-162028687003ND
2015-11-162028687004ND
2016-02-2616030044-00120.1 ppb
2016-02-2616030044-00221.2 ppb
2016-02-2616030044-00321.1 ppb
2016-02-2616030044-00423.4 ppb
2016-02-2616030044-00120.1 ppb
2016-02-2616030044-00221.2 ppb
2016-02-2616030044-00321.1 ppb
2016-02-2616030044-00423.4 ppb
2016-05-0216050197-0012.72 ppb
2016-05-0216050197-0026.90 ppb
2016-05-0216050197-0032.87 ppb
2016-05-0216050197-0045.96 ppb
2016-05-0216050197-0012.72 ppb
2016-05-0216050197-0026.90 ppb
2016-05-0216050197-0032.87 ppb
2016-05-0216050197-0045.96 ppb
2016-08-293537150ND
2016-08-293537151ND
2016-08-2935371522.10 ppb
2016-08-2935371532.70 ppb
2016-08-293537150ND
2016-08-293537151ND
2016-08-2935371522.10 ppb
2016-08-2935371532.70 ppb
2016-11-213595886ND
2016-11-213595887ND
2016-11-213595888ND
2016-11-213595889ND
2016-11-213595886ND
2016-11-213595887ND
2016-11-213595888ND
2016-11-213595889ND
2017-02-0235292835001ND
2017-02-0235292835002ND
2017-02-0235292835003ND
2017-02-0235292835004ND
2017-02-0235292835001ND
2017-02-0235292835002ND
2017-02-0235292835003ND
2017-02-0235292835004ND
2017-05-1135311961001ND
2017-05-1135311961002ND
2017-05-1135311961003ND
2017-05-1135311961004ND
2017-05-1135311961001ND
2017-05-1135311961002ND
2017-05-1135311961003ND
2017-05-1135311961004ND
2017-08-08353293010012.40 ppb
2017-08-08353293010022.00 ppb
2017-08-08353293010031.90 ppb
2017-08-08353293010042.40 ppb
2017-08-08353293010012.40 ppb
2017-08-08353293010022.00 ppb
2017-08-08353293010031.90 ppb
2017-08-08353293010042.40 ppb
2017-11-07353472040011.70 ppb
2017-11-07353472040021.60 ppb
2017-11-07353472040031.50 ppb
2017-11-07353472040041.80 ppb
2017-11-07353472040011.70 ppb
2017-11-07353472040021.60 ppb
2017-11-07353472040031.50 ppb
2017-11-07353472040041.80 ppb
2018-02-0235371881001ND
2018-02-0235371881002ND
2018-02-0235371881003ND
2018-02-0235371881004ND
2018-02-0235371881001ND
2018-02-0235371881002ND
2018-02-0235371881003ND
2018-02-0235371881004ND
2018-05-1735393024001ND
2018-05-1735393024002ND
2018-05-1735393024003ND
2018-05-1735393024004ND
2018-05-1735393024001ND
2018-05-1735393024002ND
2018-05-1735393024003ND
2018-05-1735393024004ND
2018-08-0835409845001ND
2018-08-0835409845002ND
2018-08-0835409845003ND
2018-08-0835409845004ND
2018-08-0835409845001ND
2018-08-0835409845002ND
2018-08-0835409845003ND
2018-08-0835409845004ND
2018-11-15354316960011.40 ppb
2018-11-1535431696002ND
2018-11-1535431696003ND
2018-11-1535431696004ND
2018-11-15354316960011.40 ppb
2018-11-1535431696002ND
2018-11-1535431696003ND
2018-11-1535431696004ND
2019-02-2135450025001ND
2019-02-2135450025002ND
2019-02-2135450025003ND
2019-02-21354500250040.950 ppb
2019-02-2135450025001ND
2019-02-2135450025002ND
2019-02-2135450025003ND
2019-02-21354500250040.950 ppb
2019-05-10354678650012.20 ppb
2019-05-1035467865002ND
2019-05-10354678650032.00 ppb
2019-05-1035467865004ND
2019-05-10354678650012.20 ppb
2019-05-1035467865002ND
2019-05-10354678650032.00 ppb
2019-05-1035467865004ND
2019-08-1335490047001ND
2019-08-1335490047002ND
2019-08-1335490047003ND
2019-08-13354900470042.20 ppb
2019-08-1335490047001ND
2019-08-1335490047002ND
2019-08-1335490047003ND
2019-08-13354900470042.20 ppb
2019-11-14355128550011.70 ppb
2019-11-14355128550021.50 ppb
2019-11-14355128550031.20 ppb
2019-11-14355128550041.30 ppb
2019-11-14355128550011.70 ppb
2019-11-14355128550021.50 ppb
2019-11-14355128550031.20 ppb
2019-11-14355128550041.30 ppb