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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Lockport WD#3

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

 

80

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.320 ppb162ND - 3.00 ppb
20152.19 ppb84ND - 6.37 ppb
20160.527 ppb203ND - 6.15 ppb
2017ND120ND
2018ND160ND
20191.74 ppb86ND - 2.41 ppb

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
2014-02-041ST QTR DBP14 LRND
2014-02-041ST QTR DBP14 LRND
2014-02-04FIRST QTR DBP LRND
2014-02-041ST QTR DBP14 LRND
2014-05-08DBP9 TLCKPT 2Q20ND
2014-05-08DBP9 TLCKPT 2Q20ND
2014-05-08DBP9 TLCKPT 2Q20ND
2014-05-08DBP9 TLCKPT 2Q20ND
2014-08-07DBP9 TLCKPT 3Q20ND
2014-08-07DBP9 TLCKPT 3Q20ND
2014-09-03DBP9 TLCKPT 3Q20ND
2014-09-03DBP9 TLCKPT 3Q20ND
2014-11-07DBP9 TLCKPT 4Q20ND
2014-11-07DBP9 TLCKPT 4Q202.12 ppb
2014-11-07DBP9 TLCKPT 4Q20ND
2014-11-07DBP9 TLCKPT 4Q203.00 ppb
2015-02-04DBP9 TLCKPT 1Q20ND
2015-02-04DBP9 TLCKPT 1Q203.68 ppb
2015-02-04DBP9 TLCKPT 1Q205.48 ppb
2015-02-04DBP9 TLCKPT 1Q206.37 ppb
2015-05-05DBP9 TLCKPT 2Q202.00 ppb
2015-05-05DBP9 TLCKPT 2Q20ND
2015-05-05DBP9 TLCKPT 2Q20ND
2015-05-05DBP9 TLCKPT 2Q20ND
2016-02-03DBP9 TLCKPT 1Q202.28 ppb
2016-02-03DBP9 TLCKPT 1Q202.11 ppb
2016-02-03DBP9 TLCKPT 1Q206.15 ppb
2016-02-03DBP9 TLCKPT 1Q20ND
2016-02-07DBP9 TLCKPT 1Q20ND
2016-02-07DBP9 TLCKPT 1Q20ND
2016-02-07DBP9 TLCKPT 1Q20ND
2016-02-07DBP9 TLCKPT 1Q20ND
2016-05-05DBP9 TLCKPT 2Q20ND
2016-05-05DBP9 TLCKPT 2Q20ND
2016-05-05DBP9 TLCKPT 2Q20ND
2016-05-05DBP9 TLCKPT 2Q20ND
2016-08-09DBP9 TLCKPT 3Q20ND
2016-08-09DBP9 TLCKPT 3Q20ND
2016-08-09DBP9 TLCKPT 3Q20ND
2016-08-09DBP9 TLCKPT 3Q20ND
2016-11-07DBP9 TLCKPT 4Q20ND
2016-11-07DBP9 TLCKPT 4Q20ND
2016-11-07DBP9 TLCKPT 4Q20ND
2016-11-07DBP9 TLCKPT 4Q20ND
2017-02-07DBP9 TLCKPT 1Q20ND
2017-02-07DBP9 TLCKPT 1Q20ND
2017-02-07DBP9 TLCKPT 1Q20ND
2017-02-07DBP9 TLCKPT 1Q20ND
2017-05-05DBP9 TLCKPT 2Q20ND
2017-05-05DBP9 TLCKPT 2Q20ND
2017-05-05DBP9 TLCKPT 2Q20ND
2017-05-05DBP9 TLCKPT 2Q20ND
2017-08-08DBP9 TLCKPT 3Q20ND
2017-08-08DBP9 TLCKPT 3Q20ND
2017-08-08DBP9 TLCKPT 3Q20ND
2017-08-08DBP9 TLCKPT 3Q20ND
2018-02-06DBP9 TLCKPT 1Q20ND
2018-02-06DBP9 TLCKPT 1Q20ND
2018-02-06DBP9 TLCKPT 1Q20ND
2018-02-06DBP9 TLCKPT 1Q20ND
2018-05-09DBP9 TLCKPT 2Q20ND
2018-05-09DBP9 TLCKPT 2Q20ND
2018-05-09DBP9 TLCKPT 2Q20ND
2018-05-09DBP9 TLCKPT 2Q20ND
2018-08-09DBP9 TLCKPT 3Q20ND
2018-08-09DBP9 TLCKPT 3Q20ND
2018-08-09DBP9 TLCKPT 3Q20ND
2018-08-09DBP9 TLCKPT 3Q20ND
2018-11-05DBP9 TLCKPT 4Q20ND
2018-11-05DBP9 TLCKPT 4Q20ND
2018-11-05DBP9 TLCKPT 4Q20ND
2018-11-05DBP9 TLCKPT 4Q20ND
2019-02-04DBP9 TLCKPT 1Q202.32 ppb
2019-02-04DBP9 TLCKPT 1Q202.41 ppb
2019-02-04DBP9 TLCKPT 1Q202.22 ppb
2019-02-04DBP9 TLCKPT 1Q202.27 ppb
2019-05-07DBP9 TLCKPT 2Q20ND
2019-05-07DBP9 TLCKPT 2Q202.32 ppb
2019-05-07DBP9 TLCKPT 2Q20ND
2019-05-07DBP9 TLCKPT 2Q202.35 ppb