Know Your Environment. Protect Your Health.

Trichloroacetic acid

Woodbury City Water Department

Trichloroacetic 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.

 

96

Samples

0

Samples exceeding legal limit (MCL)

37

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.488 ppb164ND - 2.40 ppb
20190.294 ppb164ND - 1.40 ppb
20200.288 ppb164ND - 1.30 ppb
20210.636 ppb166ND - 2.50 ppb
20220.543 ppb168ND - 1.30 ppb
20232.75 ppb1611ND - 9.10 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.1 ppb

The EWG Health Guideline of 0.1 ppb for trichloroacetic 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
2018-01-103851244ND
2018-01-103851245ND
2018-01-103851246ND
2018-01-103851243ND
2018-04-043904520ND
2018-04-043904521ND
2018-04-043904522ND
2018-04-043904523ND
2018-07-033981983ND
2018-07-033981984ND
2018-07-033981985ND
2018-07-033981986ND
2018-10-0440796581.60 ppb
2018-10-0440796602.00 ppb
2018-10-0440796592.40 ppb
2018-10-0440796571.80 ppb
2019-01-104171972ND
2019-01-104171973ND
2019-01-1041719741.20 ppb
2019-01-104171975ND
2019-04-034248581ND
2019-04-034248582ND
2019-04-034248583ND
2019-04-034248584ND
2019-07-0943480961.000 ppb
2019-07-0943480981.40 ppb
2019-07-0943480971.10 ppb
2019-07-094348095ND
2019-10-024449250ND
2019-10-024449251ND
2019-10-024449252ND
2019-10-024449249ND
2020-01-134537151ND
2020-01-134537152ND
2020-01-134537153ND
2020-01-134537154ND
2020-04-0946066461.000 ppb
2020-04-0946066471.20 ppb
2020-04-094606645ND
2020-04-094606644ND
2020-07-164675232ND
2020-07-1646752341.10 ppb
2020-07-164675231ND
2020-07-1646752331.30 ppb
2020-10-204758089ND
2020-10-204758091ND
2020-10-204758088ND
2020-10-204758090ND
2021-02-084830855ND
2021-02-084830854ND
2021-02-084830856ND
2021-02-084830853ND
2021-04-134879765ND
2021-04-134879766ND
2021-04-134879767ND
2021-04-134879764ND
2021-07-1449569801.30 ppb
2021-07-1449569821.60 ppb
2021-07-1449569791.40 ppb
2021-07-1449569812.40 ppb
2021-10-06630-22839-3-HAAND
2021-10-06630-22839-1-HAAND
2021-10-06630-22839-4-HAA2.50 ppb
2021-10-06630-22839-2-HAA0.970 ppb
2022-01-13630-26176-5-HAA1.000 ppb
2022-01-13630-26176-8-HAA1.10 ppb
2022-01-13630-26176-6-HAA1.10 ppb
2022-01-13630-26176-7-HAA0.940 ppb
2022-04-13630-31203-1-HAAND
2022-04-13630-31203-4-HAA1.30 ppb
2022-04-13630-31203-2-HAAND
2022-04-13630-31203-3-HAA0.970 ppb
2022-07-13630-39279-3-HAAND
2022-07-13630-39279-4-HAA1.30 ppb
2022-07-13630-39279-1-HAAND
2022-07-13630-39279-2-HAAND
2022-10-12630-47373-1-HAAND
2022-10-12630-47373-2-HAA0.980 ppb
2022-10-12630-47373-3-HAAND
2022-10-12630-47373-4-HAAND
2023-01-1732842140021.40 ppb
2023-01-173284214001ND
2023-01-173284214003ND
2023-01-1732842140041.40 ppb
2023-04-213299783002ND
2023-04-2132997830041.10 ppb
2023-04-213299783003ND
2023-04-213299783001ND
2023-07-1933139880036.70 ppb
2023-07-1933139880049.10 ppb
2023-07-1933139880026.50 ppb
2023-07-1933139880018.60 ppb
2023-11-1633333800032.40 ppb
2023-11-1633333800042.80 ppb
2023-11-1633333800021.80 ppb
2023-11-1633333800012.20 ppb