Know Your Environment. Protect Your Health.

Trichloroacetic acid

CTWC - Naugatuck Region-Central 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.

 

96

Samples

0

Samples exceeding legal limit (MCL)

94

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20186.47 ppb1614ND - 16.0 ppb
20195.33 ppb16162.20 ppb - 13.3 ppb
20205.41 ppb16161.40 ppb - 8.90 ppb
20216.06 ppb16162.40 ppb - 13.6 ppb
20227.67 ppb16162.30 ppb - 12.0 ppb
20237.68 ppb16162.50 ppb - 14.0 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
2018-02-14BZ89698HAA514.0 ppb
2018-02-14BZ89699HAA51.50 ppb
2018-02-14BZ89700HAA510.00 ppb
2018-02-14BZ89697HAA58.10 ppb
2018-05-21CA50437HAA510.00 ppb
2018-05-21CA50438HAA510.00 ppb
2018-05-21CA50439HAA516.0 ppb
2018-05-21CA50440HAA513.0 ppb
2018-08-20CB149397.10 ppb
2018-08-20CB14940ND
2018-08-20CB149411.70 ppb
2018-08-20CB14942ND
2018-11-20DBP 2005135041.60 ppb
2018-11-20DBP 2005135341.30 ppb
2018-11-20DBP 2005135066.20 ppb
2018-11-20DBP 2005135023.00 ppb
2019-02-20DBP 20052244713.3 ppb
2019-02-20DBP 2005224489.10 ppb
2019-02-20DBP 2005224492.50 ppb
2019-02-20DBP 2005224505.70 ppb
2019-05-21DBP 2005332575.50 ppb
2019-05-21DBP 2005332584.60 ppb
2019-05-21DBP 2005332594.10 ppb
2019-05-21DBP 2005332602.20 ppb
2019-08-20DBP 2005458914.20 ppb
2019-08-20DBP 2005458934.60 ppb
2019-08-20DBP 2005458924.10 ppb
2019-08-20DBP 2005458905.80 ppb
2019-11-19DBP 2005574053.90 ppb
2019-11-19DBP 2005574064.00 ppb
2019-11-19DBP 2005574074.70 ppb
2019-11-19DBP 2005574046.90 ppb
2020-02-19DBP 2005668808.30 ppb
2020-02-19DBP 2005668818.90 ppb
2020-02-19DBP 2005668821.40 ppb
2020-02-19DBP 2005668834.70 ppb
2020-05-05DBP 2005746294.30 ppb
2020-05-05DBP 2005746308.40 ppb
2020-05-05DBP 2005746287.50 ppb
2020-05-05DBP 2005746276.70 ppb
2020-08-14DBP 2005867177.00 ppb
2020-08-14DBP 2005867216.60 ppb
2020-08-14DBP 2005867225.60 ppb
2020-08-14DBP 2005867233.40 ppb
2020-11-17DBP 2005985293.20 ppb
2020-11-17DBP 2005985303.80 ppb
2020-11-17DBP 2005985312.00 ppb
2020-11-17DBP 2005985324.70 ppb
2021-02-17DBP 2006070915.70 ppb
2021-02-17DBP 2006070884.10 ppb
2021-02-17DBP 2006070894.00 ppb
2021-02-17DBP 2006070902.40 ppb
2021-05-21DBP 2006181744.50 ppb
2021-05-21DBP 2006181754.50 ppb
2021-05-21DBP 2006181766.80 ppb
2021-05-21DBP 2006181735.00 ppb
2021-08-12DBP 2006289196.40 ppb
2021-08-12DBP 2006289207.30 ppb
2021-08-12DBP 2006289215.30 ppb
2021-08-12DBP 2006289224.10 ppb
2021-11-02D300094268 3000942754.00 ppb
2021-11-02D300094267 3000942739.20 ppb
2021-11-02D300094266 30009427110.1 ppb
2021-11-02D300094265 30009426913.6 ppb
2022-02-22CK7305810.00 ppb
2022-02-22CK730598.20 ppb
2022-02-22CK7306012.0 ppb
2022-02-22CK730616.70 ppb
2022-05-20CL360739.70 ppb
2022-05-20CL360748.00 ppb
2022-05-20CL3607512.0 ppb
2022-05-20CL360765.70 ppb
2022-08-03CL963839.30 ppb
2022-08-03CL9638110.00 ppb
2022-08-03CL9638011.0 ppb
2022-08-03CL963827.30 ppb
2022-11-04CM792853.60 ppb
2022-11-04CM792863.20 ppb
2022-11-04CM792873.70 ppb
2022-11-04CM792882.30 ppb
2023-02-09CN414414.00 ppb
2023-02-09CN414423.90 ppb
2023-02-09CN414434.80 ppb
2023-02-09CN414442.50 ppb
2023-05-08CO016456.50 ppb
2023-05-08CO016475.10 ppb
2023-05-08CO016468.80 ppb
2023-05-08CO016448.50 ppb
2023-08-04CO681708.30 ppb
2023-08-04CO681718.10 ppb
2023-08-04CO681727.60 ppb
2023-08-04CO681736.80 ppb
2023-11-03CP4146314.0 ppb
2023-11-03CP4146412.0 ppb
2023-11-03CP4146512.0 ppb
2023-11-03CP4146610.00 ppb