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EWG's Tap Water Database — 2021 UPDATE

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Estriol

Cal-water Service Company - Chico

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.

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76

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND230ND
2014ND520ND
2015ND10ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppt = parts per trillion

All test results

Date Lab ID Result
2013-07-08201307090261SSND
2013-07-10201307110730SSND
2013-07-10201307110721SSND
2013-07-23201307240444SSND
2013-07-24201307250292SSND
2013-08-05201308060167SSND
2013-08-05201308060202SSND
2013-08-07201308080290SSND
2013-08-14201308150510SSND
2013-08-14201308150411SSND
2013-08-14201308150364SSND
2013-08-20201308210538SSND
2013-08-20201308210524SSND
2013-08-21201308220198SSND
2013-08-21201308220221SSND
2013-08-27201308290346SSND
2013-09-17201309180763SSND
2013-09-17201309180753SSND
2013-09-18201309200064SSND
2013-10-08201310090670SSND
2013-10-08201310090482SSND
2013-10-08201310090473SSND
2013-10-15201310160269SSND
2014-01-07201401080514SSND
2014-01-07201401080495SSND
2014-01-08201401090448SSND
2014-01-14201401150415SSND
2014-01-21201401220308SSND
2014-01-22201401230431SSND
2014-01-28201401290601SSND
2014-02-11201402120758SSND
2014-02-11201402120767SSND
2014-02-11201402120776SSND
2014-02-12201402130429SSND
2014-02-12201402130420SSND
2014-02-12201402130410SSND
2014-02-19201402200376SSND
2014-02-26201402270195SSND
2014-02-26201402270246SSND
2014-02-28201403010104SSND
2014-03-04201403050609SSND
2014-03-04201403050462SSND
2014-03-04201403050441SSND
2014-03-05201403060276SSND
2014-03-17201403180365SSND
2014-03-17201403180314SSND
2014-03-18201403190850SSND
2014-03-18201403190835SSND
2014-04-08201404090698SSND
2014-04-09201404100710SSND
2014-04-09201404100809SSND
2014-04-09201404100769SSND
2014-04-09201404100741SSND
2014-04-22201404230623SSND
2014-04-22201404230458SSND
2014-04-23201404240510SSND
2014-04-23201404240403SSND
2014-06-18201406190420SSND
2014-07-14201407150443SSND
2014-07-30201407310299SSND
2014-08-05201408060378SSND
2014-08-05201408060344SSND
2014-08-06201408070486SSND
2014-09-09201409110326SSND
2014-09-09201409110347SSND
2014-09-10201409110782SSND
2014-09-10201409110679SSND
2014-09-23201409240608SSND
2014-09-24201409250615SSND
2014-10-07201410080523SSND
2014-10-07201410080456SSND
2014-10-08201410090321SSND
2014-10-15201410160409SSND
2014-10-27201410290068SSND
2014-12-09201412100752SSND
2015-01-13201501140885SSND