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EWG's Tap Water Database — 2019 UPDATE

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Monochloroacetic acid

City of Corona

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.

 

203

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20122.63 ppb3823ND - 8.10 ppb
20130.982 ppb4411ND - 5.50 ppb
2014ND350ND
2015ND320ND
2016ND220ND
2017ND320ND

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
2012-03-124790-019-13456.20 ppb
2012-03-124790-036-14005.20 ppb
2012-03-124790-041-14457.70 ppb
2012-03-124790-043-1100ND
2012-03-124790-049-10254.90 ppb
2012-06-044790-019-0940ND
2012-06-044790-036-1325ND
2012-06-044790-041-1300ND
2012-06-044790-801-10002.10 ppb
2012-06-044790-802-1140ND
2012-06-044790-803-1530ND
2012-06-044790-804-1430ND
2012-06-044790-805-1410ND
2012-06-044790-806-11102.30 ppb
2012-06-044790-807-1325ND
2012-06-044790-808-11052.60 ppb
2012-09-114790-019-10505.90 ppb
2012-09-114790-036-11553.20 ppb
2012-09-114790-041-11506.40 ppb
2012-09-114790-801-10504.80 ppb
2012-09-114790-802-11352.10 ppb
2012-09-114790-803-08255.80 ppb
2012-09-114790-804-08555.50 ppb
2012-09-114790-805-08003.50 ppb
2012-09-114790-806-11154.00 ppb
2012-09-114790-807-13308.10 ppb
2012-09-114790-808-10356.60 ppb
2012-12-104790-019-1050ND
2012-12-104790-036-1200ND
2012-12-104790-041-1145ND
2012-12-104790-801-09102.60 ppb
2012-12-104790-802-11002.80 ppb
2012-12-104790-803-1010ND
2012-12-104790-804-0900ND
2012-12-104790-805-09402.00 ppb
2012-12-104790-806-1045ND
2012-12-104790-807-11303.30 ppb
2012-12-104790-808-14002.20 ppb
2013-03-114790-019-08304.40 ppb
2013-03-114790-036-13452.90 ppb
2013-03-114790-041-14505.50 ppb
2013-03-114790-801-11204.80 ppb
2013-03-114790-802-1305ND
2013-03-114790-803-16154.20 ppb
2013-03-114790-804-15203.80 ppb
2013-03-114790-805-16254.90 ppb
2013-03-114790-806-12502.30 ppb
2013-03-114790-807-11204.50 ppb
2013-03-114790-808-09253.70 ppb
2013-06-104790-019-15102.20 ppb
2013-06-104790-036-1345ND
2013-06-104790-041-0920ND
2013-06-104790-801-1115ND
2013-06-104790-802-1210ND
2013-06-104790-803-1130ND
2013-06-104790-804-1030ND
2013-06-104790-805-1150ND
2013-06-104790-806-1145ND
2013-06-104790-807-1240ND
2013-06-104790-808-1220ND
2013-09-099590-019-1345ND
2013-09-099590-036-1325ND
2013-09-099590-041-1410ND
2013-09-099590-801-1230ND
2013-09-099590-802-1345ND
2013-09-099590-803-1710ND
2013-09-099590-804-1650ND
2013-09-099590-805-1730ND
2013-09-099590-806-1450ND
2013-09-099590-807-0904ND
2013-09-099590-808-1027ND
2013-12-169590-019-1430ND
2013-12-169590-036-1300ND
2013-12-169590-041-1330ND
2013-12-169590-801-1040ND
2013-12-169590-802-1150ND
2013-12-169590-803-1400ND
2013-12-169590-804-1450ND
2013-12-169590-805-1430ND
2013-12-169590-806-1130ND
2013-12-169590-807-0900ND
2013-12-169590-808-0945ND
2014-03-039590-019-1345ND
2014-03-039590-036-1430ND
2014-03-039590-041-1505ND
2014-03-039590-801-1315ND
2014-03-039590-802-1510ND
2014-03-039590-803-1229ND
2014-03-039590-804-1026ND
2014-03-039590-805-1305ND
2014-03-039590-806-1435ND
2014-03-039590-807-0855ND
2014-03-039590-808-1135ND
2014-06-029590-801-1200ND
2014-06-029590-802-1045ND
2014-06-029590-803-0825ND
2014-06-029590-804-0850ND
2014-06-029590-805-0920ND
2014-06-029590-806-1230ND
2014-06-029590-807-0950ND
2014-06-029590-808-1020ND
2014-09-159590-801-1300ND
2014-09-159590-802-1400ND
2014-09-159590-803-0815ND
2014-09-159590-804-0910ND
2014-09-159590-805-0935ND
2014-09-159590-806-1330ND
2014-09-159590-807-1010ND
2014-09-159590-808-1130ND
2014-12-159590-801-1420ND
2014-12-159590-802-1340ND
2014-12-159590-803-0850ND
2014-12-159590-804-0920ND
2014-12-159590-805-0950ND
2014-12-159590-807-1020ND
2014-12-159590-808-1135ND
2014-12-159590-809-1040ND
2015-03-099590-801-1250ND
2015-03-099590-802-1230ND
2015-03-099590-803-0900ND
2015-03-099590-804-0935ND
2015-03-099590-805-1015ND
2015-03-099590-807-1040ND
2015-03-099590-808-1320ND
2015-03-099590-809-1110ND
2015-06-089590-801-1450ND
2015-06-089590-802-1420ND
2015-06-089590-803-0900ND
2015-06-089590-804-0940ND
2015-06-089590-805-1010ND
2015-06-089590-807-1040ND
2015-06-089590-808-1340ND
2015-06-089590-809-1100ND
2015-09-179590-801-1120ND
2015-09-179590-802-1100ND
2015-09-179590-803-0815ND
2015-09-179590-804-0840ND
2015-09-179590-805-0900ND
2015-09-179590-807-0910ND
2015-09-179590-808-1040ND
2015-09-179590-809-1020ND
2015-12-239590-801-1015ND
2015-12-239590-802-1130ND
2015-12-239590-803-0910ND
2015-12-239590-804-0945ND
2015-12-239590-805-0930ND
2015-12-239590-807-1510ND
2015-12-239590-808-1420ND
2015-12-239590-809-1440ND
2016-03-099590-801-1025ND
2016-03-099590-802-1050ND
2016-03-099590-803-1110ND
2016-03-099590-804-0840ND
2016-03-099590-805-0910ND
2016-03-099590-807-1330ND
2016-03-099590-808-1440ND
2016-03-099590-809-1400ND
2016-06-099590-801-1151ND
2016-06-099590-802-1045ND
2016-06-099590-803-0827ND
2016-06-099590-804-0852ND
2016-06-099590-805-0910ND
2016-06-099590-807-0936ND
2016-06-099590-808-1028ND
2016-06-099590-809-1006ND
2016-09-139590-802-1350ND
2016-09-139590-808-1450ND
2016-09-139590-809-1440ND
2016-12-159590-802-1350ND
2016-12-159590-808-1010ND
2016-12-159590-809-0950ND
2017-03-169590-801-0900ND
2017-03-169590-802-0950ND
2017-03-169590-803-1120ND
2017-03-169590-804-1030ND
2017-03-169590-805-1100ND
2017-03-169590-807-1520ND
2017-03-169590-808-1420ND
2017-03-169590-809-1440ND
2017-06-159590-801-1120ND
2017-06-159590-802-1540ND
2017-06-159590-803-0920ND
2017-06-159590-804-0945ND
2017-06-159590-805-1010ND
2017-06-159590-807-1340ND
2017-06-159590-808-1430ND
2017-06-159590-809-1400ND
2017-09-139590-801-1100ND
2017-09-139590-802-1400ND
2017-09-139590-803-0850ND
2017-09-139590-804-0910ND
2017-09-139590-805-0930ND
2017-09-139590-807-1000ND
2017-09-139590-808-1440ND
2017-09-139590-809-1520ND
2017-12-149590-801-1350ND
2017-12-149590-802-1450ND
2017-12-149590-803-0830ND
2017-12-149590-804-0855ND
2017-12-149590-805-0925ND
2017-12-149590-807-0945ND
2017-12-149590-808-1020ND
2017-12-149590-809-1010ND