1,2-Dichloroethane
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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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | 0.800 ppb | 2 | 1 | ND - 1.60 ppb |
| 2015 | 0.160 ppb | 5 | 2 | ND - 0.590 ppb |
| 2016 | 0.772 ppb | 11 | 3 | ND - 5.00 ppb |
| 2017 | 0.310 ppb | 10 | 2 | ND - 1.70 ppb |
| 2018 | 0.205 ppb | 6 | 3 | ND - 0.550 ppb |
| 2019 | 0.145 ppb | 2 | 1 | ND - 0.290 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 |
|---|---|---|
| 2014-02-13 | 14B0848-01 | ND |
| 2014-05-27 | 14E2843-01 | 1.60 ppb |
| 2015-05-27 | 15E1985-01 | 0.210 ppb |
| 2015-05-27 | 15E1985-03 | ND |
| 2015-05-27 | 15E1985-04 | ND |
| 2015-05-27 | 15E1989-01 | 0.590 ppb |
| 2015-09-24 | 15I1244-01 | ND |
| 2016-03-03 | 16C0265-01 | ND |
| 2016-03-03 | 16C0266-01 | ND |
| 2016-03-03 | 16C0267-01 | ND |
| 2016-06-20 | 3474598 | ND |
| 2016-07-11 | 3490713 | ND |
| 2016-08-24 | 16H2457-01 | ND |
| 2016-08-30 | 16H2936-01 | 5.00 ppb |
| 2016-08-30 | 16H2936-05 | ND |
| 2016-08-30 | 16H2936-04 | ND |
| 2016-08-30 | 16H2936-03 | 0.890 ppb |
| 2016-08-30 | 16H2936-02 | 2.60 ppb |
| 2017-06-13 | 17F0778-01 | 1.70 ppb |
| 2017-07-27 | 17G1931-02 | ND |
| 2017-07-27 | 17G1934-01 | ND |
| 2017-07-27 | 17G1932-04 | ND |
| 2017-07-27 | 17G1932-03 | ND |
| 2017-07-27 | 17G1932-02 | ND |
| 2017-07-27 | 17G1932-01 | ND |
| 2017-07-27 | 17G1931-04 | ND |
| 2017-07-27 | 17G1931-03 | ND |
| 2017-07-27 | 17G1931-01 | 1.40 ppb |
| 2018-02-28 | 18B1345-01 | ND |
| 2018-02-28 | 18B1345-02 | ND |
| 2018-06-22 | 18F1667-01 | 0.340 ppb |
| 2018-07-16 | 18G0768-01 | 0.340 ppb |
| 2018-07-16 | 18G0770-01 | 0.550 ppb |
| 2018-10-29 | 18J1451-01 | ND |
| 2019-08-01 | 19H0056-01 | 0.290 ppb |
| 2019-10-30 | 19J1701-01 | ND |