Know Your Environment. Protect Your Health.

Trichloroacetic acid

Rapides Parish Waterworks 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.

 

132

Samples

0

Samples exceeding legal limit (MCL)

124

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20184.37 ppb32322.10 ppb - 10.3 ppb
20192.33 ppb3228ND - 3.90 ppb
20204.12 ppb16160.930 ppb - 8.00 ppb
20211.64 ppb1615ND - 2.60 ppb
20222.32 ppb20200.760 ppb - 7.20 ppb
20234.66 ppb1613ND - 16.8 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
2018-03-22353817710016.90 ppb
2018-03-22353817710027.20 ppb
2018-03-22353817710036.90 ppb
2018-03-223538177100410.3 ppb
2018-03-22353817710016.90 ppb
2018-03-22353817710027.20 ppb
2018-03-22353817710036.90 ppb
2018-03-223538177100410.3 ppb
2018-06-25354008280012.10 ppb
2018-06-25354008280022.20 ppb
2018-06-25354008280032.30 ppb
2018-06-25354008280042.30 ppb
2018-06-25354008280012.10 ppb
2018-06-25354008280022.20 ppb
2018-06-25354008280032.30 ppb
2018-06-25354008280042.30 ppb
2018-09-27354209460013.20 ppb
2018-09-27354209460024.00 ppb
2018-09-27354209460033.30 ppb
2018-09-27354209460042.90 ppb
2018-09-27354209460013.20 ppb
2018-09-27354209460024.00 ppb
2018-09-27354209460033.30 ppb
2018-09-27354209460042.90 ppb
2018-12-14354373950014.40 ppb
2018-12-14354373950023.50 ppb
2018-12-14354373950033.50 ppb
2018-12-14354373950044.90 ppb
2018-12-14354373950014.40 ppb
2018-12-14354373950023.50 ppb
2018-12-14354373950033.50 ppb
2018-12-14354373950044.90 ppb
2019-03-22354567590013.40 ppb
2019-03-22354567590023.60 ppb
2019-03-22354567590033.20 ppb
2019-03-2235456759004ND
2019-03-22354567590013.40 ppb
2019-03-22354567590023.60 ppb
2019-03-22354567590033.20 ppb
2019-03-2235456759004ND
2019-06-13354754540011.90 ppb
2019-06-13354754540022.90 ppb
2019-06-13354754540033.20 ppb
2019-06-1335475454004ND
2019-06-13354754540011.90 ppb
2019-06-13354754540022.90 ppb
2019-06-13354754540033.20 ppb
2019-06-1335475454004ND
2019-09-23355002510012.00 ppb
2019-09-23355002510023.80 ppb
2019-09-23355002510033.90 ppb
2019-09-23355002510042.20 ppb
2019-09-23355002510012.00 ppb
2019-09-23355002510023.80 ppb
2019-09-23355002510033.90 ppb
2019-09-23355002510042.20 ppb
2019-12-11355182430011.90 ppb
2019-12-11355182430021.80 ppb
2019-12-11355182430031.80 ppb
2019-12-11355182430041.70 ppb
2019-12-11355182430011.90 ppb
2019-12-11355182430021.80 ppb
2019-12-11355182430031.80 ppb
2019-12-11355182430041.70 ppb
2020-03-10355370430013.60 ppb
2020-03-10355370430022.50 ppb
2020-03-10355370430032.40 ppb
2020-03-10355370430043.70 ppb
2020-06-23355589270011.000 ppb
2020-06-23355589270020.930 ppb
2020-06-23355589270030.980 ppb
2020-06-23355589270041.000 ppb
2020-09-28355813370015.20 ppb
2020-09-28355813370025.30 ppb
2020-09-28355813370035.10 ppb
2020-09-28355813370045.10 ppb
2020-12-16356000020017.10 ppb
2020-12-16356000020028.00 ppb
2020-12-16356000020037.50 ppb
2020-12-16356000020046.50 ppb
2021-03-22356213050012.60 ppb
2021-03-22356213050022.40 ppb
2021-03-22356213050032.00 ppb
2021-03-22356213050042.50 ppb
2021-06-21356433040032.20 ppb
2021-06-21356433040041.60 ppb
2021-06-21356433040051.40 ppb
2021-06-21356433040061.60 ppb
2021-09-02356615590011.70 ppb
2021-09-02356615590021.40 ppb
2021-09-02356615590031.70 ppb
2021-09-02356615590041.40 ppb
2021-12-02356815860011.90 ppb
2021-12-02356815860020.980 ppb
2021-12-02356815860030.870 ppb
2021-12-0235681586004ND
2022-03-09357027280010.780 ppb
2022-03-09357027280021.60 ppb
2022-03-09357027280032.10 ppb
2022-03-09357027280041.000 ppb
2022-06-08B2202707-0011.14 ppb
2022-06-08B2202707-0022.97 ppb
2022-06-08B2202707-0032.65 ppb
2022-06-08B2202707-0041.58 ppb
2022-07-26357346320011.70 ppb
2022-07-26357346320024.80 ppb
2022-07-26357346320035.70 ppb
2022-07-26357346320041.80 ppb
2022-09-29357503410010.870 ppb
2022-09-29357503410021.60 ppb
2022-09-29357503410031.70 ppb
2022-09-29357503410040.820 ppb
2022-12-05357651740010.790 ppb
2022-12-05357651740027.20 ppb
2022-12-05357651740034.80 ppb
2022-12-05357651740040.760 ppb
2023-03-22357878060010.720 ppb
2023-03-22357878060024.60 ppb
2023-03-22357878060034.40 ppb
2023-03-22357878060041.000 ppb
2023-06-2735809732001ND
2023-06-27358097320021.20 ppb
2023-06-27358097320031.10 ppb
2023-06-2735809732004ND
2023-09-2635830746001ND
2023-09-26358307460021.30 ppb
2023-09-26358307460031.40 ppb
2023-09-26358307460041.20 ppb
2023-12-133584816000111.6 ppb
2023-12-133584816000212.7 ppb
2023-12-133584816000316.8 ppb
2023-12-133584816000416.5 ppb