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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Monte Vista 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

 

297

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
2014ND560ND
2015ND450ND
2016ND320ND
2017ND380ND
20180.241 ppb764ND - 7.80 ppb
2019ND500ND

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
2014-01-069590-601-1020ND
2014-01-069590-602-1035ND
2014-01-069590-603-1005ND
2014-01-069590-604-1050ND
2014-01-069590-605-1100ND
2014-01-069590-606-0915ND
2014-01-069590-607-0855ND
2014-01-069590-608-0945ND
2014-01-139590-036-1045ND
2014-01-139590-038-1145ND
2014-01-139590-039-1350ND
2014-02-109590-036-1010ND
2014-02-109590-038-0945ND
2014-02-209590-039-1300ND
2014-03-059590-036-1020ND
2014-03-059590-038-1000ND
2014-03-069590-039-1320ND
2014-04-029590-036-1250ND
2014-04-029590-038-1230ND
2014-04-039590-039-1300ND
2014-04-099590-601-0945ND
2014-04-099590-602-1010ND
2014-04-099590-603-0925ND
2014-04-099590-604-1025ND
2014-04-099590-605-1045ND
2014-04-099590-606-0845ND
2014-04-099590-607-0815ND
2014-04-099590-608-0910ND
2014-05-079590-036-0930ND
2014-05-079590-038-1000ND
2014-05-079590-039-1315ND
2014-06-029590-038-1050ND
2014-07-013761-036-1140ND
2014-07-023761-039-1310ND
2014-07-073761-020-1000ND
2014-07-073761-022-0832ND
2014-07-073761-023-0855ND
2014-07-073761-030-0933ND
2014-07-073761-031-1027ND
2014-07-073761-601-0950ND
2014-07-073761-604-1013ND
2014-07-073761-608-0920ND
2014-08-143761-039-0810ND
2014-08-183761-039-1310ND
2014-09-153761-038-1045ND
2014-09-173761-039-1250ND
2014-10-203761-039-1300ND
2014-10-213761-020-1435ND
2014-10-213761-022-1300ND
2014-10-213761-023-1315ND
2014-10-213761-030-1415ND
2014-10-213761-031-1510ND
2014-10-213761-601-1400ND
2014-10-213761-604-1500ND
2014-10-213761-608-1345ND
2014-12-033761-039-1200ND
2015-01-083761-020-1005ND
2015-01-083761-022-0810ND
2015-01-083761-023-0835ND
2015-01-083761-031-1026ND
2015-01-083761-601-0940ND
2015-01-083761-603-0911ND
2015-01-083761-604-1015ND
2015-01-083761-608-0900ND
2015-01-123761-039-1300ND
2015-02-043761-039-1300ND
2015-03-093761-038-1000ND
2015-03-093761-039-1015ND
2015-03-113761-039-1105ND
2015-04-153761-020-1020ND
2015-04-153761-022-0805ND
2015-04-153761-023-0825ND
2015-04-153761-031-1045ND
2015-04-153761-601-1005ND
2015-04-153761-603-0955ND
2015-04-153761-604-1035ND
2015-04-153761-608-0942ND
2015-04-203761-039-1130ND
2015-05-193761-039-0911ND
2015-06-093761-039-0000ND
2015-06-103761-036-1000ND
2015-07-013761-601-1040ND
2015-07-013761-602-1055ND
2015-07-013761-603-1026ND
2015-07-013761-604-1124ND
2015-07-013761-605-1134ND
2015-07-013761-606-0939ND
2015-07-013761-607-0920ND
2015-07-013761-608-1011ND
2015-07-073761-039-0900ND
2015-07-083761-038-1000ND
2015-08-053761-039-0820ND
2015-09-153761-039-0830ND
2015-10-083761-601-0925ND
2015-10-083761-602-0940ND
2015-10-083761-603-0910ND
2015-10-083761-604-0950ND
2015-10-083761-605-1000ND
2015-10-083761-606-0836ND
2015-10-083761-607-0815ND
2015-10-083761-608-0900ND
2016-01-133761-601-1000ND
2016-01-133761-602-1015ND
2016-01-133761-603-0940ND
2016-01-133761-604-1025ND
2016-01-133761-605-1045ND
2016-01-133761-606-0900ND
2016-01-133761-607-0840ND
2016-01-133761-608-0930ND
2016-04-073761-601-0905ND
2016-04-073761-602-0855ND
2016-04-073761-603-0920ND
2016-04-073761-604-0845ND
2016-04-073761-605-1040ND
2016-04-073761-606-0950ND
2016-04-073761-607-1010ND
2016-04-073761-608-0930ND
2016-07-133761-601-1411ND
2016-07-133761-602-1357ND
2016-07-133761-603-1425ND
2016-07-133761-604-1348ND
2016-07-133761-605-1330ND
2016-07-133761-606-1500ND
2016-07-133761-607-1318ND
2016-07-133761-608-1433ND
2016-10-033761-601-1034ND
2016-10-033761-602-1047ND
2016-10-033761-603-1019ND
2016-10-033761-604-1059ND
2016-10-033761-605-1110ND
2016-10-033761-606-0930ND
2016-10-033761-607-0910ND
2016-10-033761-608-0955ND
2017-01-033761-601-1445ND
2017-01-033761-602-1310ND
2017-01-033761-603-1430ND
2017-01-033761-604-1523ND
2017-01-033761-605-1538ND
2017-01-033761-606-1345ND
2017-01-033761-607-1330ND
2017-01-033761-608-1410ND
2017-04-033761-601-1400ND
2017-04-033761-602-1415ND
2017-04-033761-603-1340ND
2017-04-033761-604-1430ND
2017-04-033761-605-1450ND
2017-04-033761-606-1310ND
2017-04-033761-607-1250ND
2017-04-033761-608-1335ND
2017-07-063761-601-1405ND
2017-07-063761-602-1416ND
2017-07-063761-603-1357ND
2017-07-063761-604-1427ND
2017-07-063761-605-1440ND
2017-07-063761-606-1320ND
2017-07-063761-607-1300ND
2017-07-063761-608-1342ND
2017-10-043761-601-1520ND
2017-10-043761-602-1530ND
2017-10-043761-603-1510ND
2017-10-043761-604-1540ND
2017-10-043761-605-1600ND
2017-10-043761-606-1440ND
2017-10-043761-607-1422ND
2017-10-043761-608-1450ND
2017-10-303761-036-1420ND
2017-10-303761-039-1410ND
2017-11-083761-036-0815ND
2017-11-083761-039-0835ND
2017-12-073761-036-0815ND
2017-12-073761-039-0830ND
2018-01-103761-036-1540ND
2018-01-103761-039-1600ND
2018-01-103761-601-1420ND
2018-01-103761-602-1430ND
2018-01-103761-603-1405ND
2018-01-103761-604-1445ND
2018-01-103761-605-1300ND
2018-01-103761-606-1320ND
2018-01-103761-607-1310ND
2018-01-103761-608-1350ND
2018-02-123761-036-1215ND
2018-02-123761-038-1300ND
2018-02-123761-039-1145ND
2018-02-223761-003-0645ND
2018-03-203761-036-0900ND
2018-03-203761-038-0840ND
2018-03-203761-039-1055ND
2018-04-103761-003-1000ND
2018-04-103761-036-0910ND
2018-04-103761-038-0900ND
2018-04-103761-039-0925ND
2018-04-253761-036-09203.20 ppb
2018-04-253761-038-0815ND
2018-04-253761-601-0930ND
2018-04-253761-602-1000ND
2018-04-253761-603-0850ND
2018-04-253761-604-1015ND
2018-04-253761-605-0810ND
2018-04-253761-606-1105ND
2018-04-253761-607-1040ND
2018-04-253761-608-0910ND
2018-05-023761-003-1040ND
2018-05-023761-036-0950ND
2018-05-023761-038-0930ND
2018-05-023761-039-1005ND
2018-05-293761-003-1005ND
2018-05-293761-036-09457.80 ppb
2018-05-293761-038-09354.90 ppb
2018-06-053761-036-0915ND
2018-06-053761-038-0845ND
2018-06-263761-003-0845ND
2018-07-103761-003-0920ND
2018-07-103761-036-0820ND
2018-07-253761-038-1125ND
2018-07-263761-602-1130ND
2018-07-263761-603-1150ND
2018-07-263761-604-1110ND
2018-07-263761-605-1055ND
2018-07-263761-606-1015ND
2018-07-263761-607-1040ND
2018-07-313761-601-1210ND
2018-07-313761-608-1100ND
2018-08-143761-003-0855ND
2018-08-283761-036-1210ND
2018-08-283761-038-1140ND
2018-09-203761-036-1250ND
2018-10-013761-601-1010ND
2018-10-013761-602-1025ND
2018-10-013761-603-0955ND
2018-10-013761-604-1040ND
2018-10-013761-605-1050ND
2018-10-013761-606-0915ND
2018-10-013761-607-0900ND
2018-10-013761-608-0940ND
2018-10-023761-003-0900ND
2018-10-093761-039-1000ND
2018-10-233761-036-1135ND
2018-10-243761-003-1045ND
2018-10-243761-036-1105ND
2018-11-063761-003-0930ND
2018-11-203761-003-1150ND
2018-11-203761-036-0905ND
2018-11-203761-036-0925ND
2018-11-203761-039-1055ND
2018-12-043761-036-0900ND
2018-12-063761-003-09102.40 ppb
2019-01-103761-601-0950ND
2019-01-103761-602-1005ND
2019-01-103761-603-0935ND
2019-01-103761-604-1020ND
2019-01-103761-605-1045ND
2019-01-103761-606-0855ND
2019-01-103761-607-0830ND
2019-01-103761-608-0915ND
2019-01-153761-003-0955ND
2019-01-153761-036-1025ND
2019-01-153761-036-1115ND
2019-02-083761-003-0920ND
2019-02-083761-036-0815ND
2019-02-083761-036-0840ND
2019-02-263761-036-1330ND
2019-04-153761-039-0915ND
2019-04-163761-036-0950ND
2019-04-163761-036-1600ND
2019-04-163761-601-1130ND
2019-04-163761-602-1145ND
2019-04-163761-603-1105ND
2019-04-163761-604-1205ND
2019-04-163761-605-1230ND
2019-04-163761-606-0935ND
2019-04-163761-607-0835ND
2019-04-163761-608-1050ND
2019-05-143761-038-1010ND
2019-05-213761-038-0845ND
2019-05-303761-036-0830ND
2019-05-303761-036-0935ND
2019-06-033761-003-1110ND
2019-06-033761-003-1135ND
2019-06-033761-039-1000ND
2019-06-033761-039-1045ND
2019-07-233761-601-1145ND
2019-07-233761-602-1210ND
2019-07-233761-603-1120ND
2019-07-233761-604-1220ND
2019-07-233761-605-1250ND
2019-07-233761-606-0945ND
2019-07-233761-607-0845ND
2019-07-233761-608-1005ND
2019-10-093761-601-1025ND
2019-10-093761-602-1050ND
2019-10-093761-603-1010ND
2019-10-093761-604-1105ND
2019-10-093761-605-1120ND
2019-10-093761-606-0940ND
2019-10-093761-607-0910ND
2019-10-093761-608-0955ND