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EWG's Tap Water Database — 2019 UPDATE

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1,2-Dichloroethane

Town of Iota Water System

1,2-Dichloroethane is a volatile carcinogenic chemical used to make plastic products such as polyvinyl chloride. Read More.

Also known as ethylene dichloride, it has been widely used as an intermediate for manufacturing other chemicals and as a solvent. 1,2-Dichloroethane causes multiple types of cancer in animal studies, and damages liver, kidneys, and the immune and nervous systems. The EPA classifies 1,2-dichloroethane as a probable human carcinogen.

Click here to read more about carcinogenic VOCs.

 

20

Samples

0

Samples exceeding legal limit (MCL)

10

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.603 ppb62ND - 1.81 ppb
2013N/A00N/A
2014N/A00N/A
20150.933 ppb62ND - 2.80 ppb
20160.485 ppb42ND - 0.970 ppb
20171.03 ppb440.550 ppb - 1.50 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.4 ppb

The EWG Health Guideline of 0.4 ppb for 1,2-dichloroethane 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 1,2-dichloroethane, established in 1987, 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 1,2-dichloroethane exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2012-06-25AD668471.81 ppb
2012-06-25AD668471.81 ppb
2012-07-09AD67364ND
2012-07-09AD67365ND
2012-07-09AD67365ND
2012-07-09AD67364ND
2015-08-0335200643003ND
2015-08-0335200643002ND
2015-08-03352006430012.80 ppb
2015-08-0335200643003ND
2015-08-0335200643002ND
2015-08-03352006430012.80 ppb
2016-08-0235258250007ND
2016-08-02352582500060.970 ppb
2016-08-0235258250007ND
2016-08-02352582500060.970 ppb
2017-02-03352937580061.50 ppb
2017-02-03352937580061.50 ppb
2017-03-09353004700060.550 ppb
2017-03-09353004700060.550 ppb