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EWG's Tap Water Database — 2019 UPDATE

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Monochloroacetic acid

City of Lathrop

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.

 

84

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
2013ND160ND
2014ND160ND
2015ND160ND
20160.131 ppb161ND - 2.10 ppb
2017ND160ND

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
2012-11-055867-902-1210ND
2012-11-055867-900-1140ND
2012-11-055867-901-1155ND
2012-11-055867-903-1230ND
2013-02-045867-901-1330ND
2013-02-045867-903-1302ND
2013-02-045867-900-1318ND
2013-02-045867-902-1342ND
2013-05-065867-901-0750ND
2013-05-065867-903-0853ND
2013-05-065867-900-0803ND
2013-05-065867-902-0738ND
2013-07-241610-902-0904ND
2013-07-241610-901-0856ND
2013-07-241610-900-0840ND
2013-07-241610-903-0904ND
2013-10-151610-902-0928ND
2013-10-151610-900-0853ND
2013-10-151610-901-0905ND
2013-10-151610-903-1225ND
2014-02-111610-902-0950ND
2014-02-111610-900-0930ND
2014-02-111610-901-0940ND
2014-02-111610-903-1040ND
2014-05-201610-902-1038ND
2014-05-201610-900-1010ND
2014-05-201610-903-1114ND
2014-05-201610-901-1018ND
2014-08-121610-901-0925ND
2014-08-121610-900-0934ND
2014-08-121610-902-0905ND
2014-08-121610-903-1045ND
2014-11-181610-903-1142ND
2014-11-181610-900-1036ND
2014-11-181610-901-1050ND
2014-11-181610-902-1100ND
2015-02-171610-902-1100ND
2015-02-171610-903-1128ND
2015-02-171610-901-1052ND
2015-02-171610-900-1045ND
2015-05-191610-900-1032ND
2015-05-191610-901-1041ND
2015-05-191610-902-1049ND
2015-05-191610-903-1112ND
2015-07-079590-900-1032ND
2015-07-079590-901-1047ND
2015-07-079590-902-1100ND
2015-07-079590-903-1132ND
2015-10-069590-903-1201ND
2015-10-069590-900-1050ND
2015-10-069590-901-1107ND
2015-10-069590-902-1122ND
2016-02-029590-903-1141ND
2016-02-029590-900-1016ND
2016-02-029590-901-1030ND
2016-02-029590-902-1101ND
2016-05-039590-903-1219ND
2016-05-039590-900-1019ND
2016-05-039590-901-1034ND
2016-05-039590-902-1129ND
2016-08-029590-902-1344ND
2016-08-029590-900-13092.10 ppb
2016-08-029590-901-1325ND
2016-08-029590-903-1517ND
2016-11-019590-900-0730ND
2016-11-019590-901-0745ND
2016-11-019590-902-0800ND
2016-11-019590-903-1235ND
2017-02-069590-903-1309ND
2017-02-069590-900-1150ND
2017-02-069590-901-1205ND
2017-02-069590-902-1236ND
2017-05-019590-902-1240ND
2017-05-019590-900-1215ND
2017-05-019590-901-1228ND
2017-05-019590-903-1330ND
2017-08-079590-900-0823ND
2017-08-079590-901-0834ND
2017-08-079590-902-0848ND
2017-08-079590-903-1219ND
2017-11-069590-900-1134ND
2017-11-069590-901-1148ND
2017-11-069590-902-1218ND
2017-11-069590-903-1303ND