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EWG's Tap Water Database — 2021 UPDATE

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cis-1,2-Dichloroethylene

Bellaire Public Water System

1,2-Dichloroethylene, a neurotoxic solvent, exists in two different forms: trans-1,2-dichloroethylene and cis-1,2-dichloroethylene. A mixture of the two forms is used to manufacture other solvents and chemical products.

MORE ABOUT THIS CONTAMINANT

 

72

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND40ND
2016ND80ND
2017ND40ND
2018ND280ND
2019ND240ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 70 ppb

The legal limit for cis-1,2-dichloroethylene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1980s.

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-07A140119497ND
2014-05-27A140160321ND
2014-08-12A140187051ND
2014-11-03A140191154ND
2015-01-05A150231580ND
2015-04-06A150231583ND
2015-07-09A150216587ND
2015-10-05A150328659ND
2016-01-04A160319643ND
2016-04-04A160338043ND
2016-07-04A160374674ND
2016-09-19A160435518ND
2016-09-19A160447266ND
2016-10-03A160451893ND
2016-11-01A160451895ND
2016-12-05A160453477ND
2017-01-02A170453478ND
2017-04-03A170477159ND
2017-07-03A170504709ND
2017-10-09A170539957ND
2018-04-0218040151ND
2018-04-0218040150ND
2018-04-0218040152ND
2018-05-0118050150ND
2018-05-0118050148ND
2018-05-0118050149ND
2018-06-0418060375ND
2018-06-0418060376ND
2018-06-0418060374ND
2018-07-0218070369ND
2018-07-0218070370ND
2018-07-0218070371ND
2018-08-0618081185ND
2018-08-0618081188ND
2018-08-0618081186ND
2018-08-0618081187ND
2018-09-0318091680ND
2018-09-0318091679ND
2018-09-0318091678ND
2018-10-0418101624ND
2018-10-0418101621ND
2018-10-0418101623ND
2018-11-0518111588ND
2018-11-0518111590ND
2018-11-0518111591ND
2018-12-0318121618ND
2018-12-0318121619ND
2018-12-0318121616ND
2019-02-0419021280ND
2019-02-0419021281ND
2019-02-0419021279ND
2019-04-0119041100ND
2019-04-0119041102ND
2019-04-0119041103ND
2019-05-0619050942ND
2019-05-0619040941ND
2019-05-0619050939ND
2019-06-0319061391ND
2019-06-0319061394ND
2019-06-0319061393ND
2019-07-0119071448ND
2019-07-0119071451ND
2019-07-0119071450ND
2019-07-2219073457ND
2019-07-2219073456ND
2019-08-0419081809ND
2019-08-0419081807ND
2019-08-0419081810ND
2019-09-0219091331ND
2019-09-0219091330ND
2019-09-0219091333ND
2019-09-0219091332ND