Know Your Environment. Protect Your Health.

Trichloroacetic acid

Perry 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.

 

48

Samples

0

Samples exceeding legal limit (MCL)

33

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20188.31 ppb84ND - 20.1 ppb
20196.85 ppb85ND - 12.5 ppb
20207.69 ppb86ND - 16.8 ppb
20216.84 ppb86ND - 23.2 ppb
20228.73 ppb86ND - 19.9 ppb
202313.2 ppb86ND - 21.5 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
2018-02-0518039009601ND
2018-02-051803900970111.0 ppb
2018-04-301812200120117.1 ppb
2018-04-3018122001301ND
2018-08-061822000480118.3 ppb
2018-08-0618220004701ND
2018-10-2918304003501ND
2018-10-291830400360120.1 ppb
2019-01-291903101080112.5 ppb
2019-01-3019031010701ND
2019-04-2319115010201ND
2019-04-231911501030110.2 ppb
2019-07-231920600910111.9 ppb
2019-07-231920600920212.2 ppb
2019-10-21192950009018.00 ppb
2019-10-2119295000801ND
2020-01-292003001550111.7 ppb
2020-01-29200300154011.80 ppb
2020-05-052012800060115.2 ppb
2020-05-05201280007013.50 ppb
2020-08-052022000140112.5 ppb
2020-08-0520220001501ND
2020-10-2720303005901ND
2020-10-272030300580116.8 ppb
2021-02-02210360006011.000 ppb
2021-02-022103600050110.2 ppb
2021-05-032112500080113.1 ppb
2021-05-03211250009012.90 ppb
2021-08-04212170145014.30 ppb
2021-08-0421217014601ND
2021-10-2721301010101ND
2021-10-272130101020123.2 ppb
2022-02-012203300490113.0 ppb
2022-02-01220330050012.30 ppb
2022-05-11O198014-HAA-119.9 ppb
2022-05-11O198013-HAA-16.11 ppb
2022-08-01O200289-HAA-112.8 ppb
2022-08-01O200288-HAA-1ND
2022-10-31O203575-HAA-115.7 ppb
2022-10-31O203574-HAA-1ND
2023-03-13O207234-HAA-117.1 ppb
2023-03-13O207233-HAA-121.5 ppb
2023-05-09O208882-HAA-116.6 ppb
2023-05-09O208883-HAA-120.5 ppb
2023-07-31O211202-HAA-1ND
2023-07-31O211203-HAA-113.8 ppb
2023-11-01O213645-HAA-1ND
2023-11-01O213646-HAA-116.1 ppb