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EWG's Tap Water Database — 2021 UPDATE

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1,1,2-Trichloroethane

Horsham Water&sewer Authority

1,1,2-Trichloroethane is a volatile neurotoxic solvent used for manufacturing products such as plastic wrap and carpet backing. It causes liver tumors in animal studies. Read More.

The EPA classifies 1,1,2- trichloroethane as a possible human carcinogen. The California public health goal of 0.3 parts per billion, set to protect against cancer, is 16 times lower than the amount allowed by the federal government, which is a Maximum Contaminant Level of 5 parts per billion.

Click here to read more about carcinogenic VOCs.

MORE ABOUT THIS CONTAMINANT

 

106

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND230ND
2015ND240ND
2016ND220ND
2017ND160ND
2018ND80ND
2019ND130ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.3 ppb

The EWG Health Guideline of 0.3 ppb for 1,1,2-trichloroethane 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.

EPA Maximum Contaminant
Level (MCL) 5 ppb

The legal limit for 1,1,2-trichloroethane, established in 1992, was based on analytical detection limits at the time that the standard was set. This limit may not fully protect against the risk of cancer due to 1,1,2-trichloroethane exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-09AE19948ND
2014-01-09AE19956ND
2014-01-09AE19959ND
2014-01-24AE21287ND
2014-02-19AE24091ND
2014-02-19AE24093ND
2014-02-19AE24094ND
2014-02-19AE24099ND
2014-02-19AE24100ND
2014-02-20AE24092ND
2014-04-16AE29642ND
2014-04-16AE29643ND
2014-04-16AE29635ND
2014-04-16AE29638ND
2014-04-16AE29639ND
2014-07-23AE41288ND
2014-07-23AE41289ND
2014-08-13AE43999ND
2014-08-13AE44001ND
2014-08-13AE44009ND
2014-10-08AE51808ND
2014-10-09AE51797ND
2014-10-09AE51805ND
2015-01-1612286579ND
2015-01-1612286586ND
2015-01-1612286610ND
2015-03-0412514941ND
2015-03-0412514962ND
2015-03-0412514983ND
2015-03-0412515004ND
2015-03-0412515025ND
2015-03-0412515046ND
2015-03-0412515067ND
2015-03-0412515088ND
2015-03-0412515109ND
2015-04-1612632993ND
2015-04-1612633035ND
2015-04-1612633056ND
2015-04-2312633014ND
2015-07-1513012145ND
2015-07-1513012187ND
2015-07-1713012124ND
2015-07-1713012166ND
2015-10-1313388718ND
2015-10-1413388655ND
2015-10-1413388676ND
2015-10-1413388697ND
2016-01-1213752680ND
2016-01-1213752701ND
2016-01-1213752722ND
2016-02-1613869802ND
2016-03-1613985446ND
2016-03-1613985467ND
2016-03-1613985503ND
2016-03-1613985530ND
2016-03-1613985551ND
2016-03-1613985572ND
2016-03-1713985425ND
2016-03-1713985488ND
2016-04-2614102749ND
2016-05-1714250263ND
2016-05-1714250284ND
2016-05-1714250305ND
2016-07-1914569341ND
2016-07-1914569362ND
2016-07-1914569383ND
2016-10-2615075523ND
2016-10-2615075544ND
2016-10-2615075565ND
2017-01-0515517126ND
2017-01-0515517084ND
2017-01-2515517105ND
2017-02-1415655273ND
2017-02-1415655294ND
2017-02-1415655315ND
2017-02-1415655252ND
2017-03-3015795474ND
2017-04-0515936823ND
2017-04-0515936844ND
2017-04-0515936865ND
2017-04-1815936802ND
2017-08-0916565750ND
2017-08-1616565708ND
2017-08-1616565729ND
2017-10-1016880019ND
2018-01-30AF74814ND
2018-01-30AF74813ND
2018-02-13AF75932ND
2018-03-23AF79016ND
2018-06-22AF86999ND
2018-08-30AF94269ND
2018-10-03AF96985ND
2018-12-27AG04620ND
2019-02-11AG07771ND
2019-02-11AG07772ND
2019-02-11AG07773ND
2019-02-11AG07775ND
2019-02-27AG09179ND
2019-04-11AG13046ND
2019-04-11AG13047ND
2019-05-09AG16016ND
2019-05-09AG16019ND
2019-05-23AG16891ND
2019-08-21AG28299ND
2019-09-18AG31924ND
2019-09-18AG31925ND