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EWG's Tap Water Database — 2019 UPDATE

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Endrin

Galveston County WCID 1

Endrin is a banned organochlorine insecticide that is persistent and bioaccumulative. Endrin damages the nervous, immune and reproductive systems in people. It also harms fish, birds and other wildlife.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND30ND
2013ND30ND
2014ND30ND
2015ND30ND
2016ND30ND
2017ND30ND

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 endrin 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 change to the heart and blood vessels.

EPA Maximum Contaminant
Level (MCL) 2 ppb

The legal limit for endrin, established in 1992, was based on a toxicity study in laboratory animals conducted in the 1960s.

ppb = parts per billion

All test results

Date Lab ID Result
2012-02-01AB79856ND
2012-02-01AB79858ND
2012-02-01AB79854ND
2013-02-05AC09730ND
2013-02-05AC09727ND
2013-02-05AC09731ND
2014-01-30AC40932ND
2014-01-30AC40931ND
2014-01-30AC40930ND
2015-01-15AC76584ND
2015-01-15AC76586ND
2015-01-15AC76585ND
2016-01-26AD20199ND
2016-01-26AD20198ND
2016-06-27AD41974ND
2017-01-26AD67324ND
2017-01-26AD67323ND
2017-01-26AD67325ND