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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

East Valley Water District

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

 

289

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND720ND
2015ND330ND
2016ND320ND
2017ND480ND
2018ND640ND
2019ND400ND

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
2014-01-303761-601-0835ND
2014-01-303761-602-0820ND
2014-01-303761-603-0755ND
2014-01-303761-604-0810ND
2014-01-303761-605-0845ND
2014-01-303761-606-0900ND
2014-01-303761-607-0910ND
2014-01-303761-608-0745ND
2014-02-273761-601-0815ND
2014-02-273761-602-0755ND
2014-02-273761-603-0900ND
2014-02-273761-604-0740ND
2014-02-273761-605-0825ND
2014-02-273761-607-0840ND
2014-02-273761-608-0810ND
2014-05-233761-601-0820ND
2014-05-233761-602-0755ND
2014-05-233761-603-0841ND
2014-05-233761-604-0743ND
2014-05-233761-605-0832ND
2014-05-233761-606-0904ND
2014-05-233761-607-0919ND
2014-05-233761-608-0809ND
2014-07-153761-002-1155ND
2014-07-313761-601-1006ND
2014-07-313761-602-0933ND
2014-07-313761-603-0953ND
2014-07-313761-604-0917ND
2014-07-313761-605-1105ND
2014-07-313761-606-1137ND
2014-07-313761-607-1054ND
2014-07-313761-608-1124ND
2014-08-223761-601-0848ND
2014-08-223761-602-0801ND
2014-08-223761-603-0908ND
2014-08-223761-604-0745ND
2014-08-223761-605-0859ND
2014-08-223761-606-0922ND
2014-08-223761-607-0958ND
2014-08-223761-608-0836ND
2014-09-193761-601-0842ND
2014-09-193761-602-0749ND
2014-09-193761-603-0852ND
2014-09-193761-604-0733ND
2014-09-193761-605-0829ND
2014-09-193761-606-0815ND
2014-09-193761-607-0917ND
2014-09-193761-608-0800ND
2014-10-173761-601-0758ND
2014-10-173761-602-0730ND
2014-10-173761-603-0821ND
2014-10-173761-604-0713ND
2014-10-173761-605-0812ND
2014-10-173761-606-0853ND
2014-10-173761-607-0840ND
2014-10-173761-608-0749ND
2014-11-203761-601-1004ND
2014-11-203761-602-0913ND
2014-11-203761-603-0924ND
2014-11-203761-604-0845ND
2014-11-203761-605-0940ND
2014-11-203761-606-1019ND
2014-11-203761-607-0833ND
2014-11-203761-608-0954ND
2014-12-153761-601-1029ND
2014-12-153761-602-1009ND
2014-12-153761-603-1046ND
2014-12-153761-604-0952ND
2014-12-153761-605-1039ND
2014-12-153761-606-1055ND
2014-12-153761-607-1108ND
2014-12-153761-608-1020ND
2015-01-223761-601-0935ND
2015-01-223761-602-0844ND
2015-01-223761-603-0853ND
2015-01-223761-604-0828ND
2015-01-223761-605-0924ND
2015-01-223761-606-1017ND
2015-01-223761-607-1039ND
2015-01-223761-608-0908ND
2015-04-073761-002-1230ND
2015-04-163761-601-1100ND
2015-04-163761-602-1015ND
2015-04-163761-603-1027ND
2015-04-163761-604-0950ND
2015-04-163761-605-1041ND
2015-04-163761-606-1112ND
2015-04-163761-607-1126ND
2015-04-163761-608-1052ND
2015-07-023761-601-0804ND
2015-07-023761-602-0744ND
2015-07-023761-603-0822ND
2015-07-023761-604-0733ND
2015-07-023761-605-0814ND
2015-07-023761-606-1010ND
2015-07-023761-607-0840ND
2015-07-023761-608-0755ND
2015-12-103761-601-0817ND
2015-12-103761-602-0749ND
2015-12-103761-603-0803ND
2015-12-103761-604-0732ND
2015-12-103761-605-0829ND
2015-12-103761-606-1115ND
2015-12-103761-607-0859ND
2015-12-103761-608-0841ND
2016-01-213761-601-1015ND
2016-01-213761-602-0903ND
2016-01-213761-603-0953ND
2016-01-213761-604-0845ND
2016-01-213761-605-1003ND
2016-01-213761-606-1056ND
2016-01-213761-607-1120ND
2016-01-213761-608-1023ND
2016-04-143761-601-0948ND
2016-04-143761-602-0856ND
2016-04-143761-603-0905ND
2016-04-143761-604-0845ND
2016-04-143761-605-0916ND
2016-04-143761-606-1000ND
2016-04-143761-607-1111ND
2016-04-143761-608-0927ND
2016-07-213761-601-0955ND
2016-07-213761-602-0910ND
2016-07-213761-603-0920ND
2016-07-213761-604-0900ND
2016-07-213761-605-0935ND
2016-07-213761-606-1010ND
2016-07-213761-607-1020ND
2016-07-213761-608-0945ND
2016-11-173761-601-0906ND
2016-11-173761-602-0828ND
2016-11-173761-603-1000ND
2016-11-173761-604-0813ND
2016-11-173761-605-0946ND
2016-11-173761-606-0918ND
2016-11-173761-607-1025ND
2016-11-173761-608-0856ND
2017-02-243761-601-0940ND
2017-02-243761-602-0900ND
2017-02-243761-603-0915ND
2017-02-243761-604-0845ND
2017-02-243761-605-0925ND
2017-02-243761-606-1020ND
2017-02-243761-607-1005ND
2017-02-243761-608-0950ND
2017-05-123761-601-1143ND
2017-05-123761-602-1023ND
2017-05-123761-603-1057ND
2017-05-123761-604-1013ND
2017-05-123761-605-1111ND
2017-05-123761-606-1222ND
2017-05-123761-607-1243ND
2017-05-123761-608-1127ND
2017-08-243761-601-0848ND
2017-08-243761-602-0828ND
2017-08-243761-603-0838ND
2017-08-243761-604-0817ND
2017-08-243761-605-0908ND
2017-08-243761-606-0920ND
2017-08-243761-607-0931ND
2017-08-243761-608-0858ND
2017-10-193761-601-0845ND
2017-10-193761-602-0815ND
2017-10-193761-603-0825ND
2017-10-193761-604-0800ND
2017-10-193761-605-0835ND
2017-10-193761-606-0915ND
2017-10-193761-607-0930ND
2017-10-193761-608-0900ND
2017-11-073761-601-1043ND
2017-11-073761-602-1053ND
2017-11-073761-603-1013ND
2017-11-073761-604-1103ND
2017-11-073761-605-1023ND
2017-11-073761-606-0920ND
2017-11-073761-607-0850ND
2017-11-073761-608-1033ND
2017-12-203761-601-0942ND
2017-12-203761-602-0912ND
2017-12-203761-603-0919ND
2017-12-203761-604-0916ND
2017-12-203761-605-0927ND
2017-12-203761-606-0955ND
2017-12-203761-607-1015ND
2017-12-203761-608-0935ND
2018-01-113761-601-0938ND
2018-01-113761-602-0845ND
2018-01-113761-603-0855ND
2018-01-113761-604-0833ND
2018-01-113761-605-0910ND
2018-01-113761-606-0954ND
2018-01-113761-607-1016ND
2018-01-113761-608-0922ND
2018-02-203761-601-0950ND
2018-02-203761-602-1020ND
2018-02-203761-603-1010ND
2018-02-203761-604-1050ND
2018-02-203761-605-0920ND
2018-02-203761-606-0855ND
2018-02-203761-607-0905ND
2018-02-203761-608-1000ND
2018-04-303761-601-0945ND
2018-04-303761-602-0805ND
2018-04-303761-603-1125ND
2018-04-303761-604-0745ND
2018-04-303761-605-1105ND
2018-04-303761-606-0925ND
2018-04-303761-607-0900ND
2018-04-303761-608-1010ND
2018-05-303761-601-1008ND
2018-05-303761-602-1101ND
2018-05-303761-603-0937ND
2018-05-303761-604-0741ND
2018-05-303761-605-0947ND
2018-05-303761-606-0915ND
2018-05-303761-607-0841ND
2018-05-303761-608-0957ND
2018-08-093761-601-1142ND
2018-08-093761-602-1101ND
2018-08-093761-603-1111ND
2018-08-093761-604-1050ND
2018-08-093761-605-1122ND
2018-08-093761-606-1152ND
2018-08-093761-607-1205ND
2018-08-093761-608-1132ND
2018-09-063761-601-0740ND
2018-09-063761-602-0805ND
2018-09-063761-603-0855ND
2018-09-063761-604-0815ND
2018-09-063761-605-0845ND
2018-09-063761-606-0825ND
2018-09-063761-607-0835ND
2018-09-063761-608-0750ND
2018-10-113761-601-1005ND
2018-10-113761-602-0924ND
2018-10-113761-603-0934ND
2018-10-113761-604-0855ND
2018-10-113761-605-0946ND
2018-10-113761-606-1015ND
2018-10-113761-607-1033ND
2018-10-113761-608-0956ND
2018-11-283761-601-0946ND
2018-11-283761-602-1027ND
2018-11-283761-603-0936ND
2018-11-283761-604-0804ND
2018-11-283761-605-0920ND
2018-11-283761-606-0855ND
2018-11-283761-607-0840ND
2018-11-283761-608-0910ND
2019-01-233761-601-0935ND
2019-01-233761-602-0815ND
2019-01-233761-603-0835ND
2019-01-233761-604-1020ND
2019-01-233761-605-0950ND
2019-01-233761-606-0845ND
2019-01-233761-607-0900ND
2019-01-233761-608-0940ND
2019-02-073761-601-0925ND
2019-02-073761-602-1005ND
2019-02-073761-603-0945ND
2019-02-073761-604-0745ND
2019-02-073761-605-0940ND
2019-02-073761-606-0910ND
2019-02-073761-607-0835ND
2019-02-073761-608-0930ND
2019-05-073761-601-0935ND
2019-05-073761-602-1019ND
2019-05-073761-603-1008ND
2019-05-073761-604-1029ND
2019-05-073761-605-0955ND
2019-05-073761-606-0922ND
2019-05-073761-607-0905ND
2019-05-073761-608-0945ND
2019-08-083761-601-0931ND
2019-08-083761-602-1020ND
2019-08-083761-603-0953ND
2019-08-083761-604-1009ND
2019-08-083761-605-0944ND
2019-08-083761-606-1042ND
2019-08-083761-607-0905ND
2019-08-083761-608-0921ND
2019-11-083761-601-1019ND
2019-11-083761-602-0959ND
2019-11-083761-603-1047ND
2019-11-083761-604-0941ND
2019-11-083761-605-1034ND
2019-11-083761-606-1107ND
2019-11-083761-607-0915ND
2019-11-083761-608-1010ND