Know Your Environment. Protect Your Health.

Dichloroacetic acid

CTWC - Naugatuck Region-Central System

Dichloroacetic 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)

89

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20184.06 ppb1613ND - 10.00 ppb
20192.55 ppb1613ND - 8.80 ppb
20203.20 ppb1615ND - 6.80 ppb
20213.84 ppb16160.600 ppb - 7.40 ppb
20225.14 ppb16162.00 ppb - 8.90 ppb
20235.23 ppb16162.40 ppb - 8.70 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.2 ppb

The EWG Health Guideline of 0.2 ppb for dichloroacetic 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
2018-02-14BZ89698HAA59.00 ppb
2018-02-14BZ89699HAA5ND
2018-02-14BZ89700HAA59.80 ppb
2018-02-14BZ89697HAA58.70 ppb
2018-05-21CA50437HAA52.40 ppb
2018-05-21CA50438HAA58.00 ppb
2018-05-21CA50439HAA54.20 ppb
2018-05-21CA50440HAA52.20 ppb
2018-08-20CB1493910.00 ppb
2018-08-20CB149402.00 ppb
2018-08-20CB149411.30 ppb
2018-08-20CB149421.60 ppb
2018-11-20DBP 200513504ND
2018-11-20DBP 200513534ND
2018-11-20DBP 2005135065.00 ppb
2018-11-20DBP 2005135020.800 ppb
2019-02-20DBP 2005224478.80 ppb
2019-02-20DBP 2005224483.30 ppb
2019-02-20DBP 200522449ND
2019-02-20DBP 2005224506.50 ppb
2019-05-21DBP 2005332573.20 ppb
2019-05-21DBP 2005332581.70 ppb
2019-05-21DBP 2005332591.000 ppb
2019-05-21DBP 2005332603.10 ppb
2019-08-20DBP 2005458910.700 ppb
2019-08-20DBP 2005458934.70 ppb
2019-08-20DBP 200545892ND
2019-08-20DBP 2005458901.50 ppb
2019-11-19DBP 2005574050.700 ppb
2019-11-19DBP 200557406ND
2019-11-19DBP 2005574074.60 ppb
2019-11-19DBP 2005574041.000 ppb
2020-02-19DBP 2005668804.60 ppb
2020-02-19DBP 2005668814.10 ppb
2020-02-19DBP 200566882ND
2020-02-19DBP 2005668834.50 ppb
2020-05-05DBP 2005746294.10 ppb
2020-05-05DBP 2005746302.50 ppb
2020-05-05DBP 2005746286.80 ppb
2020-05-05DBP 2005746276.20 ppb
2020-08-14DBP 2005867172.20 ppb
2020-08-14DBP 2005867211.40 ppb
2020-08-14DBP 2005867225.60 ppb
2020-08-14DBP 2005867230.600 ppb
2020-11-17DBP 2005985293.60 ppb
2020-11-17DBP 2005985302.00 ppb
2020-11-17DBP 2005985312.30 ppb
2020-11-17DBP 2005985320.700 ppb
2021-02-17DBP 2006070915.50 ppb
2021-02-17DBP 2006070884.00 ppb
2021-02-17DBP 2006070893.70 ppb
2021-02-17DBP 2006070902.70 ppb
2021-05-21DBP 2006181744.90 ppb
2021-05-21DBP 2006181754.80 ppb
2021-05-21DBP 2006181763.90 ppb
2021-05-21DBP 2006181736.40 ppb
2021-08-12DBP 2006289193.80 ppb
2021-08-12DBP 2006289201.70 ppb
2021-08-12DBP 2006289215.20 ppb
2021-08-12DBP 2006289220.700 ppb
2021-11-02D300094268 3000942750.600 ppb
2021-11-02D300094267 3000942737.40 ppb
2021-11-02D300094266 3000942711.20 ppb
2021-11-02D300094265 3000942694.90 ppb
2022-02-22CK730588.10 ppb
2022-02-22CK730596.90 ppb
2022-02-22CK730606.90 ppb
2022-02-22CK730616.00 ppb
2022-05-20CL360738.90 ppb
2022-05-20CL360747.80 ppb
2022-05-20CL360752.20 ppb
2022-05-20CL360766.30 ppb
2022-08-03CL963836.60 ppb
2022-08-03CL963812.90 ppb
2022-08-03CL963804.90 ppb
2022-08-03CL963823.20 ppb
2022-11-04CM792854.00 ppb
2022-11-04CM792863.10 ppb
2022-11-04CM792872.00 ppb
2022-11-04CM792882.40 ppb
2023-02-09CN414414.50 ppb
2023-02-09CN414424.40 ppb
2023-02-09CN414435.40 ppb
2023-02-09CN414443.20 ppb
2023-05-08CO016455.70 ppb
2023-05-08CO016474.40 ppb
2023-05-08CO016468.70 ppb
2023-05-08CO016447.40 ppb
2023-08-04CO681704.50 ppb
2023-08-04CO681714.40 ppb
2023-08-04CO681723.10 ppb
2023-08-04CO681737.10 ppb
2023-11-03CP414635.20 ppb
2023-11-03CP414645.70 ppb
2023-11-03CP414652.40 ppb
2023-11-03CP414667.60 ppb