Know Your Environment. Protect Your Health.

Trichloroacetic acid

City of Denham Springs Water System

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)

111

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.79 ppb32320.350 ppb - 3.80 ppb
20191.27 ppb3222ND - 9.60 ppb
20201.18 ppb16160.330 ppb - 2.90 ppb
20210.905 ppb1613ND - 2.30 ppb
20221.56 ppb1615ND - 3.30 ppb
20231.26 ppb1613ND - 2.20 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
2018-02-01353718460012.50 ppb
2018-02-01353718460022.70 ppb
2018-02-01353718460030.690 ppb
2018-02-01353718460042.60 ppb
2018-02-01353718460012.50 ppb
2018-02-01353718460022.70 ppb
2018-02-01353718460030.690 ppb
2018-02-01353718460042.60 ppb
2018-05-04353903080011.90 ppb
2018-05-04353903080021.80 ppb
2018-05-04353903080032.20 ppb
2018-05-04353903080040.350 ppb
2018-05-04353903080011.90 ppb
2018-05-04353903080021.80 ppb
2018-05-04353903080032.20 ppb
2018-05-04353903080040.350 ppb
2018-08-07354098120012.80 ppb
2018-08-07354098120023.80 ppb
2018-08-07354098120033.10 ppb
2018-08-07354098120040.700 ppb
2018-08-07354098120012.80 ppb
2018-08-07354098120023.80 ppb
2018-08-07354098120033.10 ppb
2018-08-07354098120040.700 ppb
2018-11-02354281940010.720 ppb
2018-11-02354281940021.30 ppb
2018-11-02354281940030.790 ppb
2018-11-02354281940040.620 ppb
2018-11-02354281940010.720 ppb
2018-11-02354281940021.30 ppb
2018-11-02354281940030.790 ppb
2018-11-02354281940040.620 ppb
2019-02-1535448841001ND
2019-02-15354488410020.840 ppb
2019-02-15354488410032.50 ppb
2019-02-1535448841004ND
2019-02-1535448841001ND
2019-02-15354488410020.840 ppb
2019-02-15354488410032.50 ppb
2019-02-1535448841004ND
2019-05-0335466097001ND
2019-05-0335466097002ND
2019-05-03354660970039.60 ppb
2019-05-0335466097004ND
2019-05-0335466097001ND
2019-05-0335466097002ND
2019-05-03354660970039.60 ppb
2019-05-0335466097004ND
2019-08-01354868710010.760 ppb
2019-08-01354868710020.820 ppb
2019-08-01354868710030.830 ppb
2019-08-01354868710040.630 ppb
2019-08-01354868710010.760 ppb
2019-08-01354868710020.820 ppb
2019-08-01354868710030.830 ppb
2019-08-01354868710040.630 ppb
2019-11-01355091280010.660 ppb
2019-11-01355091280021.20 ppb
2019-11-01355091280032.00 ppb
2019-11-01355091280040.500 ppb
2019-11-01355091280010.660 ppb
2019-11-01355091280021.20 ppb
2019-11-01355091280032.00 ppb
2019-11-01355091280040.500 ppb
2020-02-06355294940010.700 ppb
2020-02-06355294940020.430 ppb
2020-02-06355294940031.10 ppb
2020-02-06355294940040.370 ppb
2020-05-01355471510010.340 ppb
2020-05-01355471510020.970 ppb
2020-05-01355471510031.70 ppb
2020-05-01355471510040.330 ppb
2020-08-06355690850012.90 ppb
2020-08-06355690850021.40 ppb
2020-08-06355690850032.50 ppb
2020-08-24355733250010.400 ppb
2020-11-06355904810012.20 ppb
2020-11-06355904810021.10 ppb
2020-11-06355904810031.90 ppb
2020-11-06355904810040.540 ppb
2021-02-0535609996001ND
2021-02-05356099960020.910 ppb
2021-02-05356099960031.20 ppb
2021-02-0535609996004ND
2021-05-06356316580010.660 ppb
2021-05-06356316580020.880 ppb
2021-05-06356316580031.10 ppb
2021-05-0635631658004ND
2021-08-12356559180011.000 ppb
2021-08-12356559180021.30 ppb
2021-08-12356559180030.470 ppb
2021-08-12356559180041.90 ppb
2021-11-05356762980012.30 ppb
2021-11-05356762980021.10 ppb
2021-11-05356762980031.30 ppb
2021-11-05356762980040.360 ppb
2022-02-10356965620012.40 ppb
2022-02-10356965620021.50 ppb
2022-02-10356965620031.40 ppb
2022-02-10356965620040.390 ppb
2022-05-06357159370012.20 ppb
2022-05-06357159370021.20 ppb
2022-05-06357159370031.40 ppb
2022-05-06357159370040.600 ppb
2022-08-17357411920011.10 ppb
2022-08-17357411920022.50 ppb
2022-08-1735741192003ND
2022-08-17357411920043.30 ppb
2022-11-04357581500012.50 ppb
2022-11-04357581500021.40 ppb
2022-11-04357581500032.60 ppb
2022-11-04357581500040.500 ppb
2023-02-03357769900010.810 ppb
2023-02-03357769900021.40 ppb
2023-02-03357769900031.80 ppb
2023-02-03357769900041.20 ppb
2023-05-05357977810011.70 ppb
2023-05-05357977810021.000 ppb
2023-05-05357977810031.50 ppb
2023-05-0535797781004ND
2023-08-30358246500011.40 ppb
2023-08-30358246500021.70 ppb
2023-08-3035824650003ND
2023-08-30358246500042.20 ppb
2023-11-03358392480012.00 ppb
2023-11-03358392480021.30 ppb
2023-11-03358392480032.20 ppb
2023-11-0335839248004ND