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EWG's Tap Water Database

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1,1,1,2-Tetrachloroethane

Status: No national drinking water standard exists

 

1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.

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states detected

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utilities detected

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people served

State and national drinking water standards and health guidelines

Health Guideline 1 ppb

The health guideline of 1 ppb for 1,1,1,2-tetrachloroethane was defined by the Environmental Protection Agency as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion.

States reporting 1,1,1,2-tetrachloroethane in drinking water

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Utilities with the highest amounts of 1,1,1,2-tetrachloroethane, 2015

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