Know Your Environment. Protect Your Health.

Trichloroacetic acid

Hampton Shaler Water Authority

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.

 

168

Samples

0

Samples exceeding legal limit (MCL)

132

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.22 ppb87ND - 6.08 ppb
20192.03 ppb3225ND - 6.22 ppb
20201.15 ppb3222ND - 5.49 ppb
20211.76 ppb3229ND - 3.57 ppb
20221.43 ppb3220ND - 7.20 ppb
20231.42 ppb3229ND - 5.17 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
2018-11-0718K0954-011.59 ppb
2018-11-0718K0954-026.08 ppb
2018-11-0718K0954-034.92 ppb
2018-11-0718K0954-041.25 ppb
2018-11-0718K0954-051.23 ppb
2018-11-0718K0954-061.46 ppb
2018-11-0718K0954-07ND
2018-11-0718K0954-081.22 ppb
2019-02-0819B0573-01ND
2019-02-0819B0573-021.76 ppb
2019-02-0819B0573-034.46 ppb
2019-02-0819B0573-044.00 ppb
2019-02-0819B0573-051.51 ppb
2019-02-0819B0573-061.23 ppb
2019-02-0819B0573-07ND
2019-02-0819B0573-081.27 ppb
2019-05-0719E0151-013.27 ppb
2019-05-0719E0151-023.60 ppb
2019-05-0719E0151-032.63 ppb
2019-05-0719E0151-04ND
2019-05-0719E0151-05ND
2019-05-0719E0151-061.27 ppb
2019-05-0719E0151-071.05 ppb
2019-05-0719E0151-08ND
2019-08-0719H0175-01ND
2019-08-0719H0175-02ND
2019-08-0719H0175-036.22 ppb
2019-08-0719H0175-042.12 ppb
2019-08-0719H0175-052.90 ppb
2019-08-0719H0175-063.05 ppb
2019-08-0719H0175-072.58 ppb
2019-08-0719H0175-082.88 ppb
2019-11-1219K0166-011.38 ppb
2019-11-1219K0166-026.20 ppb
2019-11-1219K0166-032.89 ppb
2019-11-1219K0166-042.10 ppb
2019-11-1219K0166-051.43 ppb
2019-11-1219K0166-061.58 ppb
2019-11-1219K0166-072.01 ppb
2019-11-1219K0166-081.60 ppb
2020-02-101.38 ppb
2020-02-101.84 ppb
2020-02-101.83 ppb
2020-02-101.32 ppb
2020-02-101.31 ppb
2020-02-101.76 ppb
2020-02-101.93 ppb
2020-02-101.61 ppb
2020-05-071.06 ppb
2020-05-071.43 ppb
2020-05-071.58 ppb
2020-05-07ND
2020-05-071.54 ppb
2020-05-071.82 ppb
2020-05-071.27 ppb
2020-05-07ND
2020-08-10ND
2020-08-105.49 ppb
2020-08-102.04 ppb
2020-08-101.24 ppb
2020-08-101.13 ppb
2020-08-101.86 ppb
2020-08-101.02 ppb
2020-08-10ND
2020-11-10ND
2020-11-10ND
2020-11-10ND
2020-11-101.05 ppb
2020-11-10ND
2020-11-10ND
2020-11-101.20 ppb
2020-11-10ND
2021-02-10ND
2021-02-101.69 ppb
2021-02-101.93 ppb
2021-02-101.35 ppb
2021-02-101.73 ppb
2021-02-101.22 ppb
2021-02-101.28 ppb
2021-02-101.12 ppb
2021-05-10ND
2021-05-101.20 ppb
2021-05-102.92 ppb
2021-05-101.82 ppb
2021-05-101.01 ppb
2021-05-101.66 ppb
2021-05-10ND
2021-05-101.13 ppb
2021-08-101.06 ppb
2021-08-102.16 ppb
2021-08-103.57 ppb
2021-08-103.24 ppb
2021-08-101.67 ppb
2021-08-102.60 ppb
2021-08-101.36 ppb
2021-08-102.94 ppb
2021-11-101.44 ppb
2021-11-102.03 ppb
2021-11-102.45 ppb
2021-11-102.62 ppb
2021-11-102.06 ppb
2021-11-102.50 ppb
2021-11-102.51 ppb
2021-11-102.11 ppb
2022-02-09ND
2022-02-091.02 ppb
2022-02-096.20 ppb
2022-02-097.20 ppb
2022-02-091.20 ppb
2022-02-094.90 ppb
2022-02-091.05 ppb
2022-02-096.56 ppb
2022-05-11ND
2022-05-111.48 ppb
2022-05-111.59 ppb
2022-05-111.45 ppb
2022-05-11ND
2022-05-111.70 ppb
2022-05-111.03 ppb
2022-05-111.29 ppb
2022-08-10ND
2022-08-10ND
2022-08-10ND
2022-08-10ND
2022-08-10ND
2022-08-10ND
2022-08-10ND
2022-08-10ND
2022-11-09ND
2022-11-091.28 ppb
2022-11-091.38 ppb
2022-11-091.32 ppb
2022-11-091.19 ppb
2022-11-091.21 ppb
2022-11-091.39 ppb
2022-11-091.33 ppb
2023-02-08ND
2023-02-081.37 ppb
2023-02-081.20 ppb
2023-02-081.44 ppb
2023-02-081.50 ppb
2023-02-082.04 ppb
2023-02-081.40 ppb
2023-02-081.29 ppb
2023-05-111.34 ppb
2023-05-111.61 ppb
2023-05-115.17 ppb
2023-05-111.57 ppb
2023-05-111.15 ppb
2023-05-112.06 ppb
2023-05-11ND
2023-05-111.39 ppb
2023-08-09ND
2023-08-092.02 ppb
2023-08-091.16 ppb
2023-08-091.25 ppb
2023-08-091.24 ppb
2023-08-091.68 ppb
2023-08-091.27 ppb
2023-08-091.90 ppb
2023-11-081.04 ppb
2023-11-081.63 ppb
2023-11-081.01 ppb
2023-11-081.23 ppb
2023-11-081.38 ppb
2023-11-081.52 ppb
2023-11-081.42 ppb
2023-11-081.23 ppb