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EWG's Tap Water Database

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Estriol

Clearwater Water System

Estriol 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.

 

10

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
2013ND40ND
2014ND50ND
2015ND10ND

ppt = parts per trillion.

All test results

Date Result
2013-12-11ND
2013-12-16ND
2013-12-16ND
2013-12-17ND
2014-03-18ND
2014-06-24ND
2014-06-24ND
2014-06-24ND
2014-09-24ND
2015-08-05ND