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EWG's Tap Water Database — 2019 UPDATE

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Estriol

Contra Costa Water District

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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013ND80ND
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A

ppt = parts per trillion

All test results

Date Lab ID Result
2013-03-12201303130365SSND
2013-03-20201303210135SSND
2013-06-11201306120211SSND
2013-06-12201306130200SSND
2013-09-10201309110439SSND
2013-09-11201309120475SSND
2013-12-10201312120835SSND
2013-12-11201312120837SSND