Know Your Environment. Protect Your Health.

Monochloroacetic acid

Tesoro Viejo Master Mwc, Inc.

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.

 

54

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20183.35 ppb128ND - 7.70 ppb
20192.75 ppb2215ND - 6.60 ppb
2020ND80ND
2021ND40ND
20222.03 ppb43ND - 3.50 ppb
20231.63 ppb43ND - 2.40 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 53 ppb

The EWG Health Guideline of 53 ppb for monochloroacetic acid was defined by the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk.a public health goal. This health guideline protects against change to fetal growth and development.

ppb = parts per billion

All test results

Date Lab ID Result
2018-09-17CA2010017_DST_900-2018091708302.10 ppb
2018-10-10CA2010017_DST_900-2018101007136.60 ppb
2018-10-29CA2010017_DST_900-2018102907052.50 ppb
2018-10-31CA2010017_DST_900-2018103107046.50 ppb
2018-11-02CA2010017_DST_900-2018110206576.90 ppb
2018-11-07CA2010017_DST_900-201811070915ND
2018-11-14CA2010017_DST_900-2018111406557.70 ppb
2018-11-21CA2010017_DST_900-2018112109253.30 ppb
2018-11-27CA2010017_DST_900-201811271134ND
2018-12-09CA2010017_DST_900-201812091335ND
2018-12-10CA2010017_DST_900-201812100645ND
2018-12-19CA2010017_DST_900-2018121909234.60 ppb
2019-01-08CA2010017_DST_900-201901081315ND
2019-01-16CA2010017_DST_900-201901161455ND
2019-01-23CA2010017_DST_900-2019012309255.30 ppb
2019-01-30CA2010017_DST_900-2019013010375.00 ppb
2019-02-07CA2010017_DST_900-2019020715555.10 ppb
2019-02-13CA2010017_DST_900-2019021309554.90 ppb
2019-02-20CA2010017_DST_900-2019022011156.60 ppb
2019-02-27CA2010017_DST_900-2019022715004.80 ppb
2019-03-05CA2010017_DST_900-2019030514475.90 ppb
2019-03-11CA2010017_DST_900-2019031113053.90 ppb
2019-03-13CA2010017_DST_900-2019031307103.10 ppb
2019-03-15CA2010017_DST_900-2019031512503.90 ppb
2019-03-25CA2010017_DST_900-2019032511352.20 ppb
2019-03-27CA2010017_DST_900-201903270900ND
2019-03-29CA2010017_DST_900-2019032906452.60 ppb
2019-04-03CA2010017_DST_900-2019040310102.30 ppb
2019-04-10CA2010017_DST_900-201904100715ND
2019-04-17CA2010017_DST_900-2019041710502.90 ppb
2019-04-24CA2010017_DST_900-2019042407002.10 ppb
2019-06-12CA2010017_DST_900-201906120825ND
2019-07-10CA2010017_DST_900-201907100930ND
2019-10-16CA2010017_DST_900-201910160930ND
2020-01-15CA2010017_DST_900-202001151510ND
2020-04-03CA2010017_DST_900-202004030740ND
2020-04-08CA2010017_DST_900-202004080825ND
2020-04-09CA2010017_DST_900-202004091310ND
2020-04-15CA2010017_DST_900-202004150745ND
2020-04-22CA2010017_DST_900-202004220805ND
2020-07-15CA2010017_DST_900-202007150810ND
2020-10-14CA2010017_DST_900-202010140835ND
2021-01-13CA2010017_DST_900-202101130830ND
2021-04-14CA2010017_DST_900-202104140825ND
2021-07-14CA2010017_DST_900-202107141010ND
2021-10-13CA2010017_DST_900-202110130935ND
2022-01-12CA2010017_DST_900-2022011208502.30 ppb
2022-04-13CA2010017_DST_900-2022041308452.30 ppb
2022-07-14CA2010017_DST_900-202207140945ND
2022-10-11CA2010017_DST_900-2022101107003.50 ppb
2023-01-11CA2010017_DST_900-202301110855ND
2023-04-20CA2010017_DST_900-2023042006452.10 ppb
2023-07-12CA2010017_DST_900-2023071206302.40 ppb
2023-10-02CA2010017_DST_900-2023100207352.00 ppb