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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

California Water Service Company - Palos Verde

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
20140.272 ppb324ND - 2.30 ppb
2015ND320ND
2016ND320ND
20170.0656 ppb321ND - 2.10 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
2014-02-185810-800-1048ND
2014-02-185810-801-1105ND
2014-02-185810-802-1335ND
2014-02-185810-803-1535ND
2014-02-185810-804-1455ND
2014-02-185810-805-1305ND
2014-02-185810-806-1542ND
2014-02-185810-807-1145ND
2014-05-215810-800-1118ND
2014-05-215810-801-1200ND
2014-05-215810-802-1305ND
2014-05-215810-803-1250ND
2014-05-215810-804-1330ND
2014-05-215810-805-1225ND
2014-05-215810-806-1300ND
2014-05-215810-807-1210ND
2014-08-195810-800-11502.10 ppb
2014-08-195810-801-11352.30 ppb
2014-08-195810-802-1030ND
2014-08-195810-803-0945ND
2014-08-195810-804-0930ND
2014-08-195810-805-10452.20 ppb
2014-08-195810-806-10102.10 ppb
2014-08-195810-807-1110ND
2014-11-185810-800-1140ND
2014-11-185810-801-1150ND
2014-11-185810-802-1110ND
2014-11-185810-803-1220ND
2014-11-185810-804-0944ND
2014-11-185810-805-1030ND
2014-11-185810-806-1010ND
2014-11-185810-807-1050ND
2015-02-185810-800-1520ND
2015-02-185810-801-1150ND
2015-02-185810-802-1500ND
2015-02-185810-803-1300ND
2015-02-185810-804-1415ND
2015-02-185810-805-1215ND
2015-02-185810-806-1430ND
2015-02-185810-807-1240ND
2015-05-195810-800-1040ND
2015-05-195810-801-1107ND
2015-05-195810-802-1257ND
2015-05-195810-803-1358ND
2015-05-195810-804-1330ND
2015-05-195810-805-1232ND
2015-05-195810-806-1427ND
2015-05-195810-807-1143ND
2015-08-175810-800-0943ND
2015-08-175810-801-0959ND
2015-08-175810-802-1100ND
2015-08-175810-803-1435ND
2015-08-175810-804-1120ND
2015-08-175810-805-1046ND
2015-08-175810-806-1449ND
2015-08-175810-807-1025ND
2015-11-195810-800-1029ND
2015-11-195810-801-1040ND
2015-11-195810-802-1141ND
2015-11-195810-803-1308ND
2015-11-195810-804-1207ND
2015-11-195810-805-1126ND
2015-11-195810-806-1328ND
2015-11-195810-807-1108ND
2016-02-175810-800-1527ND
2016-02-175810-801-1517ND
2016-02-175810-802-1425ND
2016-02-175810-803-1442ND
2016-02-175810-804-1350ND
2016-02-175810-805-1436ND
2016-02-175810-806-1417ND
2016-02-175810-807-1450ND
2016-05-175810-800-0928ND
2016-05-175810-801-0905ND
2016-05-175810-802-1057ND
2016-05-175810-803-1020ND
2016-05-175810-804-1125ND
2016-05-175810-805-1015ND
2016-05-175810-806-0925ND
2016-05-175810-807-1050ND
2016-08-155810-800-1024ND
2016-08-155810-801-1045ND
2016-08-155810-802-1155ND
2016-08-155810-803-1243ND
2016-08-155810-804-1313ND
2016-08-155810-805-1140ND
2016-08-155810-806-1258ND
2016-08-155810-807-1115ND
2016-11-215810-800-0935ND
2016-11-215810-801-0947ND
2016-11-215810-802-1117ND
2016-11-215810-803-1408ND
2016-11-215810-804-1139ND
2016-11-215810-805-1104ND
2016-11-215810-806-1426ND
2016-11-215810-807-1026ND
2017-02-215810-804-1259ND
2017-02-215810-805-1230ND
2017-02-215810-806-1450ND
2017-02-215810-807-1141ND
2017-02-225810-800-09082.10 ppb
2017-02-225810-801-0921ND
2017-02-225810-802-0949ND
2017-02-225810-803-1006ND
2017-05-165810-800-0925ND
2017-05-165810-801-0950ND
2017-05-165810-802-1120ND
2017-05-165810-803-1200ND
2017-05-165810-804-1140ND
2017-05-165810-805-1100ND
2017-05-165810-806-1300ND
2017-05-165810-807-1040ND
2017-08-215810-800-1039ND
2017-08-215810-801-1022ND
2017-08-215810-802-1146ND
2017-08-215810-803-0954ND
2017-08-215810-804-0915ND
2017-08-215810-805-1310ND
2017-08-215810-806-1016ND
2017-08-215810-807-1340ND
2017-11-205810-800-0920ND
2017-11-205810-801-0940ND
2017-11-205810-802-1000ND
2017-11-205810-803-1020ND
2017-11-205810-804-1100ND
2017-11-205810-805-1130ND
2017-11-205810-806-1040ND
2017-11-205810-807-1155ND
2018-02-225810-800-0930ND
2018-02-225810-801-0948ND
2018-02-225810-802-1105ND
2018-02-225810-803-1120ND
2018-02-225810-804-1515ND
2018-02-225810-805-1042ND
2018-02-225810-806-1418ND
2018-02-225810-807-1017ND
2018-05-215810-800-1040ND
2018-05-215810-801-1051ND
2018-05-215810-802-1200ND
2018-05-215810-803-1411ND
2018-05-215810-804-1339ND
2018-05-215810-805-1148ND
2018-05-215810-806-1440ND
2018-05-215810-807-1114ND
2018-08-235810-800-1250ND
2018-08-235810-801-1305ND
2018-08-235810-802-1335ND
2018-08-235810-803-1350ND
2018-08-235810-804-1442ND
2018-08-235810-805-1500ND
2018-08-235810-806-1412ND
2018-08-235810-807-1520ND
2018-11-195810-800-1115ND
2018-11-195810-801-1133ND
2018-11-195810-802-1153ND
2018-11-195810-803-1210ND
2018-11-195810-804-0900ND
2018-11-195810-805-0918ND
2018-11-195810-806-0942ND
2018-11-195810-807-1001ND
2019-02-215810-800-0954ND
2019-02-215810-801-1023ND
2019-02-215810-802-1140ND
2019-02-215810-803-1325ND
2019-02-215810-804-1245ND
2019-02-215810-805-1115ND
2019-02-215810-806-1433ND
2019-02-215810-807-1047ND
2019-05-235810-800-1038ND
2019-05-235810-801-1113ND
2019-05-235810-802-1319ND
2019-05-235810-803-1409ND
2019-05-235810-804-1334ND
2019-05-235810-805-1257ND
2019-05-235810-806-1428ND
2019-05-235810-807-1140ND
2019-08-225810-800-1103ND
2019-08-225810-801-1130ND
2019-08-225810-802-1331ND
2019-08-225810-803-1438ND
2019-08-225810-804-1418ND
2019-08-225810-805-1313ND
2019-08-225810-806-1506ND
2019-08-225810-807-1249ND
2019-11-185810-800-0920ND
2019-11-185810-801-0936ND
2019-11-185810-802-1108ND
2019-11-185810-803-1220ND
2019-11-185810-804-1201ND
2019-11-185810-805-1040ND
2019-11-185810-806-1238ND
2019-11-185810-807-1008ND