Know Your Environment. Protect Your Health.

Dichloroacetic acid

Cheniere Drew North Water System

Dichloroacetic 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.

 

62

Samples

0

Samples exceeding legal limit (MCL)

59

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.605 ppb440.580 ppb - 0.630 ppb
20192.31 ppb12120.770 ppb - 5.90 ppb
20202.87 ppb87ND - 6.60 ppb
20214.49 ppb882.30 ppb - 7.90 ppb
20224.85 ppb14140.530 ppb - 12.1 ppb
20234.94 ppb1614ND - 8.00 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.2 ppb

The EWG Health Guideline of 0.2 ppb for dichloroacetic 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. This health guideline protects against cancer and harm to reproduction and child development.

ppb = parts per billion

All test results

Date Lab ID Result
2018-05-16353932240010.580 ppb
2018-05-16353932240020.630 ppb
2018-05-16353932240020.630 ppb
2018-05-16353932240010.580 ppb
2019-05-15354693180010.960 ppb
2019-05-15354693180020.770 ppb
2019-05-15354693180010.960 ppb
2019-05-15354693180020.770 ppb
2019-08-02354870330011.30 ppb
2019-08-02354870330025.90 ppb
2019-08-02354870330011.30 ppb
2019-08-02354870330025.90 ppb
2019-11-19355140890022.50 ppb
2019-11-19355140890012.40 ppb
2019-11-19355140890022.50 ppb
2019-11-19355140890012.40 ppb
2020-02-13355311980014.40 ppb
2020-02-13355311980024.70 ppb
2020-05-07355488340010.660 ppb
2020-05-0735548834002ND
2020-08-07355690630011.70 ppb
2020-08-07355690630021.40 ppb
2020-11-05355904990013.50 ppb
2020-11-05355904990026.60 ppb
2021-02-11356115470022.30 ppb
2021-02-11356115470012.30 ppb
2021-05-06356316690015.80 ppb
2021-05-06356316690024.20 ppb
2021-08-05356536900024.20 ppb
2021-08-05356536900014.10 ppb
2021-11-12356773600027.90 ppb
2021-11-12356773600015.10 ppb
2022-02-11356966520012.20 ppb
2022-02-11356966520022.20 ppb
2022-05-13357182820011.90 ppb
2022-05-13357182820020.530 ppb
2022-05-13357182820036.50 ppb
2022-05-13357182820046.60 ppb
2022-08-16357407660039.90 ppb
2022-08-16357407660049.10 ppb
2022-08-16357407660022.00 ppb
2022-08-16357407660012.20 ppb
2022-11-073575886600312.1 ppb
2022-11-07357588660021.90 ppb
2022-11-07357588660011.90 ppb
2022-11-07357588660048.80 ppb
2023-02-09357788960036.10 ppb
2023-02-09357788960045.50 ppb
2023-02-09357788960027.60 ppb
2023-02-09357788960014.80 ppb
2023-05-16358009320045.90 ppb
2023-05-16358009320036.10 ppb
2023-05-16358009320028.00 ppb
2023-05-16358009320017.00 ppb
2023-08-1035819872001ND
2023-08-10358198720027.70 ppb
2023-08-10358198720034.80 ppb
2023-08-10358198720044.40 ppb
2023-11-0835840544001ND
2023-11-08358405440021.20 ppb
2023-11-08358405440035.10 ppb
2023-11-08358405440044.90 ppb