Know Your Environment. Protect Your Health.

Trichloroacetic acid

West Hwy 80 Ark Road WS

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.

 

128

Samples

0

Samples exceeding legal limit (MCL)

106

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.47 ppb32320.330 ppb - 5.00 ppb
20191.62 ppb3228ND - 4.30 ppb
20201.70 ppb169ND - 6.70 ppb
20210.848 ppb168ND - 2.60 ppb
20221.15 ppb16160.650 ppb - 2.40 ppb
20231.00 ppb1613ND - 2.40 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
2018-02-21353761480010.330 ppb
2018-02-21353761480022.90 ppb
2018-02-21353761480030.610 ppb
2018-02-21353761480040.850 ppb
2018-02-21353761480010.330 ppb
2018-02-21353761480022.90 ppb
2018-02-21353761480030.610 ppb
2018-02-21353761480040.850 ppb
2018-05-21353939280012.20 ppb
2018-05-21353939280025.00 ppb
2018-05-21353939280034.40 ppb
2018-05-21353939280040.840 ppb
2018-05-21353939280012.20 ppb
2018-05-21353939280025.00 ppb
2018-05-21353939280034.40 ppb
2018-05-21353939280040.840 ppb
2018-08-15354116160011.80 ppb
2018-08-15354116160024.20 ppb
2018-08-15354116160033.70 ppb
2018-08-15354116160041.10 ppb
2018-08-15354116160011.80 ppb
2018-08-15354116160024.20 ppb
2018-08-15354116160033.70 ppb
2018-08-15354116160041.10 ppb
2018-11-01354282250054.20 ppb
2018-11-01354282250063.70 ppb
2018-11-01354282250070.630 ppb
2018-11-01354282250083.00 ppb
2018-11-01354282250054.20 ppb
2018-11-01354282250063.70 ppb
2018-11-01354282250070.630 ppb
2018-11-01354282250083.00 ppb
2019-02-18354493600010.900 ppb
2019-02-18354493600022.20 ppb
2019-02-18354493600031.90 ppb
2019-02-1835449360004ND
2019-02-18354493600010.900 ppb
2019-02-18354493600022.20 ppb
2019-02-18354493600031.90 ppb
2019-02-1835449360004ND
2019-05-15354693190011.70 ppb
2019-05-15354693190020.640 ppb
2019-05-15354693190034.30 ppb
2019-05-1535469319004ND
2019-05-15354693190011.70 ppb
2019-05-15354693190020.640 ppb
2019-05-15354693190034.30 ppb
2019-05-1535469319004ND
2019-08-01354870220012.10 ppb
2019-08-01354870220020.960 ppb
2019-08-01354870220033.80 ppb
2019-08-01354870220040.880 ppb
2019-08-01354870220012.10 ppb
2019-08-01354870220020.960 ppb
2019-08-01354870220033.80 ppb
2019-08-01354870220040.880 ppb
2019-11-19355140870012.60 ppb
2019-11-19355140870020.880 ppb
2019-11-19355140870032.40 ppb
2019-11-19355140870040.730 ppb
2019-11-19355140870012.60 ppb
2019-11-19355140870020.880 ppb
2019-11-19355140870032.40 ppb
2019-11-19355140870040.730 ppb
2020-02-1335531043001ND
2020-02-1335531043002ND
2020-02-13355310430032.70 ppb
2020-02-1335531043004ND
2020-05-08355488300012.80 ppb
2020-05-08355488300022.70 ppb
2020-05-08355488300036.70 ppb
2020-05-08355488300042.80 ppb
2020-08-19355722600010.980 ppb
2020-08-1935572260002ND
2020-08-19355722600033.00 ppb
2020-08-19355722600040.520 ppb
2020-11-1035591934001ND
2020-11-1035591934002ND
2020-11-10355919340035.00 ppb
2020-11-1035591934004ND
2021-02-0535610070001ND
2021-02-05356100700022.60 ppb
2021-02-05356100700032.40 ppb
2021-02-0535610070004ND
2021-05-0635631671001ND
2021-05-06356316710021.90 ppb
2021-05-06356316710032.20 ppb
2021-05-06356316710042.10 ppb
2021-08-1235655729001ND
2021-08-1235655729002ND
2021-08-1235655729003ND
2021-08-1235655729004ND
2021-11-04356771430010.580 ppb
2021-11-04356771430020.840 ppb
2021-11-04356771430030.940 ppb
2021-11-0435677143004ND
2022-02-11356966500010.840 ppb
2022-02-11356966500021.10 ppb
2022-02-11356966500031.000 ppb
2022-02-11356966500040.770 ppb
2022-05-05357157910010.890 ppb
2022-05-05357157910021.10 ppb
2022-05-05357157910030.990 ppb
2022-05-05357157910040.750 ppb
2022-08-29357440280012.20 ppb
2022-08-29357440280020.650 ppb
2022-08-29357440280030.670 ppb
2022-08-29357440280041.30 ppb
2022-11-15357615990012.40 ppb
2022-11-15357615990020.660 ppb
2022-11-15357615990030.770 ppb
2022-11-15357615990042.30 ppb
2023-02-09357792710011.80 ppb
2023-02-0935779271002ND
2023-02-09357792710030.350 ppb
2023-02-09357792710041.80 ppb
2023-05-11358009060011.20 ppb
2023-05-11358009060020.960 ppb
2023-05-11358009060031.000 ppb
2023-05-11358009060041.000 ppb
2023-08-1035820966001ND
2023-08-10358209660020.670 ppb
2023-08-10358209660030.790 ppb
2023-08-1035820966004ND
2023-11-07358417640012.00 ppb
2023-11-07358417640020.970 ppb
2023-11-07358417640031.10 ppb
2023-11-07358417640042.40 ppb