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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

City of San Angelo

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
2014ND320ND
2015ND320ND
2016ND320ND
2017ND320ND
20183.07 ppb3225ND - 10.1 ppb
20192.42 ppb3225ND - 5.30 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
2014-02-25AC44451ND
2014-02-25AC44452ND
2014-02-25AC44453ND
2014-02-25AC44458ND
2014-02-25AC44455ND
2014-02-25AC44456ND
2014-02-25AC44459ND
2014-02-25AC44471ND
2014-04-29AC52176ND
2014-04-29AC52180ND
2014-04-29AC52177ND
2014-04-29AC52174ND
2014-04-29AC52175ND
2014-04-29AC52173ND
2014-04-29AC52178ND
2014-04-29AC52179ND
2014-08-11AC63232ND
2014-08-11AC63260ND
2014-08-11AC63259ND
2014-08-11AC63208ND
2014-08-11AC63204ND
2014-08-11AC63209ND
2014-08-11AC63203ND
2014-08-11AC63202ND
2014-11-10AC71736ND
2014-11-10AC71733ND
2014-11-10AC71735ND
2014-11-10AC71732ND
2014-11-10AC71734ND
2014-11-10AC71730ND
2014-11-10AC71739ND
2014-11-10AC71737ND
2015-02-02AC78690ND
2015-02-02AC78691ND
2015-02-02AC78705ND
2015-02-02AC78689ND
2015-02-02AC78707ND
2015-02-02AC78706ND
2015-02-02AC78704ND
2015-02-02AC78703ND
2015-05-18AC92308ND
2015-05-18AC92311ND
2015-05-18AC92303ND
2015-05-18AC92312ND
2015-05-18AC92305ND
2015-05-18AC92306ND
2015-05-18AC92309ND
2015-05-18AC92307ND
2015-08-12AD03959ND
2015-08-12AD03964ND
2015-08-12AD03961ND
2015-08-12AD03966ND
2015-08-12AD03963ND
2015-08-12AD03960ND
2015-08-12AD03965ND
2015-08-12AD03957ND
2015-11-05AD12760ND
2015-11-05AD12755ND
2015-11-05AD12762ND
2015-11-05AD12761ND
2015-11-05AD12758ND
2015-11-05AD12754ND
2015-11-05AD12752ND
2015-11-05AD12756ND
2016-02-17AD24256ND
2016-02-17AD24252ND
2016-02-17AD24250ND
2016-02-17AD24283ND
2016-02-17AD24285ND
2016-02-17AD24281ND
2016-02-17AD24257ND
2016-02-17AD24253ND
2016-05-17AD37015ND
2016-05-17AD37021ND
2016-05-17AD37016ND
2016-05-17AD37014ND
2016-05-17AD37020ND
2016-05-17AD37018ND
2016-05-17AD37019ND
2016-05-17AD37017ND
2016-07-20AD44891ND
2016-07-20AD44885ND
2016-07-20AD44883ND
2016-07-20AD44887ND
2016-07-20AD44888ND
2016-07-20AD44889ND
2016-07-20AD44882ND
2016-07-20AD44890ND
2016-11-09AD57349ND
2016-11-09AD57340ND
2016-11-09AD57345ND
2016-11-09AD57348ND
2016-11-09AD57350ND
2016-11-09AD57343ND
2016-11-09AD57353ND
2016-11-09AD57351ND
2017-02-22Q1707695001ND
2017-02-22Q1707695002ND
2017-02-22Q1707695003ND
2017-02-22Q1707695004ND
2017-02-22Q1707695005ND
2017-02-22Q1707695006ND
2017-02-22Q1707695007ND
2017-02-22Q1707695008ND
2017-05-09Q1719085007ND
2017-05-09Q1719085008ND
2017-05-09Q1719085009ND
2017-05-09Q1719085010ND
2017-05-09Q1719085011ND
2017-05-09Q1719085012ND
2017-05-09Q1719085013ND
2017-05-09Q1719085014ND
2017-07-26Q1731197005ND
2017-07-26Q1731197001ND
2017-07-26Q1731197006ND
2017-07-26Q1731197002ND
2017-07-26Q1731197003ND
2017-07-26Q1731197007ND
2017-07-26Q1731197004ND
2017-07-26Q1731197008ND
2017-11-01Q1756358005ND
2017-11-01Q1756358001ND
2017-11-01Q1756358006ND
2017-11-01Q1756358002ND
2017-11-01Q1756358007ND
2017-11-01Q1756358003ND
2017-11-01Q1756358008ND
2017-11-01Q1756358004ND
2018-02-28Q1808687011ND
2018-02-28Q1808687002ND
2018-02-28Q18086870124.00 ppb
2018-02-28Q1808687004ND
2018-02-28Q1808687013ND
2018-02-28Q1808687005ND
2018-02-28Q1808687014ND
2018-02-28Q1808687006ND
2018-04-24Q18168540043.50 ppb
2018-04-24Q18168540013.70 ppb
2018-04-24Q18168540054.10 ppb
2018-04-24Q18168540023.60 ppb
2018-04-24Q18168540063.90 ppb
2018-04-24Q18168540074.80 ppb
2018-04-24Q18168540033.70 ppb
2018-04-24Q18168540083.90 ppb
2018-07-17Q18282620033.40 ppb
2018-07-17Q18282620082.50 ppb
2018-07-17Q18282620042.60 ppb
2018-07-17Q18282620012.00 ppb
2018-07-17Q18282620052.00 ppb
2018-07-17Q18282620022.10 ppb
2018-07-17Q18282620061.90 ppb
2018-07-17Q18282620072.10 ppb
2018-12-04Q18493760043.60 ppb
2018-12-04Q18493760034.00 ppb
2018-12-04Q18493760053.80 ppb
2018-12-04Q18493760016.20 ppb
2018-12-04Q184937600610.1 ppb
2018-12-04Q18493760074.40 ppb
2018-12-04Q18493760024.00 ppb
2018-12-04Q18493760088.40 ppb
2019-03-06Q19095180061.60 ppb
2019-03-06Q19095180073.00 ppb
2019-03-06Q19095180032.70 ppb
2019-03-06Q19095180082.50 ppb
2019-03-06Q19095180042.90 ppb
2019-03-06Q19095180012.70 ppb
2019-03-06Q19095180053.40 ppb
2019-03-06Q19095180023.50 ppb
2019-05-07Q19207850112.70 ppb
2019-05-07Q19207850122.60 ppb
2019-05-07Q19207850132.80 ppb
2019-05-07Q19207850142.70 ppb
2019-05-07Q19207850152.30 ppb
2019-05-07Q19207850161.80 ppb
2019-05-07Q19207850172.90 ppb
2019-05-07Q19207850182.30 ppb
2019-07-18Q19460800015.30 ppb
2019-07-18Q19460800024.10 ppb
2019-07-18Q19460800034.00 ppb
2019-07-18Q19460800044.20 ppb
2019-07-18Q19460800053.60 ppb
2019-07-18Q19460800064.10 ppb
2019-07-18Q19460800074.40 ppb
2019-07-18Q19460800084.00 ppb
2019-11-04Q1975101005ND
2019-11-04Q1975101006ND
2019-11-04Q1975101007ND
2019-11-04Q19751010081.30 ppb
2019-11-04Q1975101001ND
2019-11-04Q1975101002ND
2019-11-04Q1975101003ND
2019-11-04Q1975101004ND