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EWG's Tap Water Database — 2021 UPDATE

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Ethinyl estradiol

San Antonio Water System Northeast

Ethinyl estradiol is one of the 3 types of estrogen made by the human body. Sex hormones get into water downstream from livestock and pharmaceutical production, or incomplete removal in waste water treatment. There are no standards to gauge how risky additional hormones are for human health.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND50ND
2014ND70ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppt = parts per trillion

All test results

Date Lab ID Result
2013-10-08201310110250SSND
2013-10-08201310110248SSND
2013-10-08201310110244SSND
2013-10-08201310110242SSND
2013-10-08201310110246SSND
2014-01-24201401270007SSND
2014-04-14201404150345SSND
2014-04-14201404150337SSND
2014-04-14201404150335SSND
2014-04-14201404150333SSND
2014-04-15201404160660SSND
2014-07-25201407260066SSND