Know Your Environment. Protect Your Health.

Trichloroacetic acid

Beauregard Water Works District #3

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.

 

192

Samples

0

Samples exceeding legal limit (MCL)

184

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.18 ppb48480.470 ppb - 2.20 ppb
20191.43 ppb48480.460 ppb - 2.60 ppb
20201.33 ppb24240.390 ppb - 2.90 ppb
20211.24 ppb24240.360 ppb - 2.00 ppb
20221.20 ppb2423ND - 2.40 ppb
20230.898 ppb2417ND - 1.90 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
2018-03-07353791770010.730 ppb
2018-03-07353791770021.70 ppb
2018-03-07353791770030.810 ppb
2018-03-07353791770040.620 ppb
2018-03-07353791770051.50 ppb
2018-03-07353791770060.710 ppb
2018-03-07353791770010.730 ppb
2018-03-07353791770021.70 ppb
2018-03-07353791770030.810 ppb
2018-03-07353791770040.620 ppb
2018-03-07353791770051.50 ppb
2018-03-07353791770060.710 ppb
2018-06-13353987410010.970 ppb
2018-06-13353987410021.30 ppb
2018-06-13353987410030.840 ppb
2018-06-13353987410040.850 ppb
2018-06-13353987410050.470 ppb
2018-06-13353987410061.20 ppb
2018-06-13353987410010.970 ppb
2018-06-13353987410021.30 ppb
2018-06-13353987410030.840 ppb
2018-06-13353987410040.850 ppb
2018-06-13353987410050.470 ppb
2018-06-13353987410061.20 ppb
2018-09-04354162210011.20 ppb
2018-09-04354162210020.900 ppb
2018-09-04354162210031.90 ppb
2018-09-04354162260012.20 ppb
2018-09-04354162260021.20 ppb
2018-09-04354162260031.70 ppb
2018-09-04354162210011.20 ppb
2018-09-04354162210020.900 ppb
2018-09-04354162210031.90 ppb
2018-09-04354162260012.20 ppb
2018-09-04354162260021.20 ppb
2018-09-04354162260031.70 ppb
2018-12-12354373740012.00 ppb
2018-12-12354373740021.70 ppb
2018-12-12354373740030.860 ppb
2018-12-12354373740040.900 ppb
2018-12-12354373740051.30 ppb
2018-12-12354373740060.730 ppb
2018-12-12354373740012.00 ppb
2018-12-12354373740021.70 ppb
2018-12-12354373740030.860 ppb
2018-12-12354373740040.900 ppb
2018-12-12354373740051.30 ppb
2018-12-12354373740060.730 ppb
2019-03-11354547150012.30 ppb
2019-03-11354547150020.980 ppb
2019-03-11354547160012.60 ppb
2019-03-11354547160020.740 ppb
2019-03-11354547160030.690 ppb
2019-03-11354547150012.30 ppb
2019-03-11354547150020.980 ppb
2019-03-11354547160012.60 ppb
2019-03-11354547160020.740 ppb
2019-03-11354547160030.690 ppb
2019-03-14354547150031.60 ppb
2019-03-14354547150031.60 ppb
2019-06-03354742820011.80 ppb
2019-06-03354742820020.960 ppb
2019-06-03354742820030.900 ppb
2019-06-03354742840012.20 ppb
2019-06-03354742840021.60 ppb
2019-06-03354742840030.940 ppb
2019-06-03354742820011.80 ppb
2019-06-03354742820020.960 ppb
2019-06-03354742820030.900 ppb
2019-06-03354742840012.20 ppb
2019-06-03354742840021.60 ppb
2019-06-03354742840030.940 ppb
2019-09-03354958240012.20 ppb
2019-09-03354958310012.30 ppb
2019-09-03354958310021.000 ppb
2019-09-03354958310030.550 ppb
2019-09-03354958240012.20 ppb
2019-09-03354958310012.30 ppb
2019-09-03354958310021.000 ppb
2019-09-03354958310030.550 ppb
2019-09-26355011310011.10 ppb
2019-09-26355011310021.70 ppb
2019-09-26355011310011.10 ppb
2019-09-26355011310021.70 ppb
2019-12-02355169810012.40 ppb
2019-12-02355169810021.000 ppb
2019-12-02355169810031.60 ppb
2019-12-02355169860012.00 ppb
2019-12-02355169860020.580 ppb
2019-12-02355169860030.460 ppb
2019-12-02355169810012.40 ppb
2019-12-02355169810021.000 ppb
2019-12-02355169810031.60 ppb
2019-12-02355169860012.00 ppb
2019-12-02355169860020.580 ppb
2019-12-02355169860030.460 ppb
2020-03-12355374570012.30 ppb
2020-03-12355374570022.00 ppb
2020-03-12355374570031.000 ppb
2020-03-12355374570041.30 ppb
2020-03-12355374570051.70 ppb
2020-03-12355374570060.690 ppb
2020-06-04355546310011.60 ppb
2020-06-04355546310022.20 ppb
2020-06-04355546310030.790 ppb
2020-06-04355546310040.760 ppb
2020-06-04355546310051.10 ppb
2020-06-04355546310060.390 ppb
2020-09-25355806120011.50 ppb
2020-09-25355806120021.40 ppb
2020-09-25355806120030.570 ppb
2020-09-25355806120041.20 ppb
2020-09-25355806120051.000 ppb
2020-09-25355806120060.440 ppb
2020-12-04355966600012.90 ppb
2020-12-04355966600022.50 ppb
2020-12-04355966600031.000 ppb
2020-12-04355966600041.20 ppb
2020-12-04355966600051.70 ppb
2020-12-04355966600060.740 ppb
2021-03-29356225290011.40 ppb
2021-03-29356225290021.50 ppb
2021-03-29356225290030.790 ppb
2021-03-29356225290040.740 ppb
2021-03-29356225290051.20 ppb
2021-03-29356225290060.410 ppb
2021-06-23356435080011.90 ppb
2021-06-23356435080022.00 ppb
2021-06-23356435080031.20 ppb
2021-06-23356435080041.20 ppb
2021-06-23356435080051.30 ppb
2021-06-23356435080060.490 ppb
2021-09-09356636330011.90 ppb
2021-09-09356636330021.90 ppb
2021-09-09356636330031.30 ppb
2021-09-09356636330041.000 ppb
2021-09-09356636330051.40 ppb
2021-09-09356636330060.990 ppb
2021-12-17356853960011.80 ppb
2021-12-17356853960021.60 ppb
2021-12-17356853960030.650 ppb
2021-12-17356853960040.930 ppb
2021-12-17356853960051.80 ppb
2021-12-17356853960060.360 ppb
2022-03-17357049440011.80 ppb
2022-03-17357049440021.60 ppb
2022-03-17357049440030.850 ppb
2022-03-17357049440041.10 ppb
2022-03-17357049440051.60 ppb
2022-03-17357049440060.630 ppb
2022-06-02357224480011.60 ppb
2022-06-02357224480021.70 ppb
2022-06-02357224480030.620 ppb
2022-06-02357224480040.840 ppb
2022-06-02357224480051.20 ppb
2022-06-02357224480060.390 ppb
2022-09-09357458630011.80 ppb
2022-09-09357458630021.50 ppb
2022-09-09357458630030.950 ppb
2022-09-09357458630040.780 ppb
2022-09-09357458630051.70 ppb
2022-09-0935745863006ND
2022-12-09357658970010.850 ppb
2022-12-09357658970022.40 ppb
2022-12-09357658970031.80 ppb
2022-12-09357658970042.00 ppb
2022-12-09357658970050.500 ppb
2022-12-09357658970060.550 ppb
2023-03-17357869010011.80 ppb
2023-03-1735786901002ND
2023-03-1735786901003ND
2023-03-17357869010041.30 ppb
2023-03-1735786901005ND
2023-03-1735786901006ND
2023-06-28358097330011.10 ppb
2023-06-28358097330021.50 ppb
2023-06-2835809733003ND
2023-06-28358097330040.630 ppb
2023-06-28358097330051.40 ppb
2023-06-2835809733006ND
2023-09-12358279040011.40 ppb
2023-09-12358279040021.90 ppb
2023-09-12358279040030.830 ppb
2023-09-12358279040041.000 ppb
2023-09-12358279040051.60 ppb
2023-09-1235827904006ND
2023-12-05358468360010.840 ppb
2023-12-05358468360021.70 ppb
2023-12-05358468360031.60 ppb
2023-12-05358468360041.70 ppb
2023-12-05358468360050.770 ppb
2023-12-05358468360060.480 ppb