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EWG's Tap Water Database

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17-beta-Estradiol

City of Chicago

Beta-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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2010N/A00N/A
2011N/A00N/A
2012N/A00N/A
2013N/A00N/A
2014ND60ND
2015ND20ND

ppt = parts per trillion.

All test results

Date Lab ID Result
2014-04-283015706ND
2014-04-283015739ND
2014-08-133081743ND
2014-08-133081723ND
2014-10-073118971ND
2014-10-073118986ND
2015-01-133169379ND
2015-01-133169399ND