Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

1,1,2,2-Tetrachloroethane

Norwich Public Utilities

1,1,2,2-Tetrachloroethane is an industrial chemical which has been used as a metal degreaser, and in paint, paint removers, mothballs and pesticides. It damages the liver and nervous system, and may cause cancer.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND30ND
2016ND30ND
2017ND30ND
2018ND30ND
2019ND30ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for 1,1,2,2-tetrachloroethane was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2014-05-016300210VOC1ND
2014-05-016300211VOC1ND
2014-05-016300209VOC1ND
2015-08-196301190VOC1ND
2015-08-196301191VOC1ND
2015-08-196301192VOC1ND
2016-11-176302524VOC1ND
2016-11-176302525VOC1ND
2016-11-176302526VOC1ND
2017-06-15PH-0453-6303177VND
2017-06-15PH-0453-6303179VND
2017-06-15PH-0453-6303178VND
2018-09-18PH-0453-6304496VND
2018-09-18PH-0453-6304497VND
2018-10-03PH-0453-6304498VND
2019-08-29PH-0453-6305609VND
2019-08-29PH-0453-6305611VND
2019-09-16PH-0453-6305610VND