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EWG's Tap Water Database — 2021 UPDATE

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1,1,2,2-Tetrachloroethane

Sw Boone County Water Association

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.

 

23

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND40ND
2016ND40ND
2017ND40ND
2018ND40ND
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
2014-01-2114023003601ND
2014-04-2914121003109ND
2014-08-1914233003809ND
2014-10-2814303006502ND
2015-01-2715029009302ND
2015-04-2815120005602ND
2015-07-2815210001001ND
2015-10-2815302004401ND
2016-01-2116025006901ND
2016-05-1716140011102ND
2016-07-1816203007401ND
2016-11-1516321009801ND
2017-02-0617040000701ND
2017-04-2517117003409ND
2017-07-2517207001908ND
2017-10-2517299005901ND
2018-01-2418025010402ND
2018-05-0818129001702ND
2018-07-3118213007301ND
2018-10-3018304001501ND
2019-01-2919031007301ND
2019-04-3019122005502ND
2019-07-2319205003401ND