Estriol

City of Stockton

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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Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Range of results
2014	N/A	0	N/A
2015	ND	39	ND
2016	N/A	0	N/A
2017	N/A	0	N/A
2018	N/A	0	N/A
2019	N/A	0	N/A

ppt = parts per trillion

All test results

Date	Lab ID	Result
2015-02-03	A5A1406-04	ND
2015-02-17	A5A1435-28	ND
2015-02-17	A5A1435-18	ND
2015-02-17	A5A1435-23	ND
2015-02-17	A5A1435-09	ND
2015-02-17	A5A1435-04	ND
2015-02-18	A5A1436-14	ND
2015-02-18	A5A1436-19	ND
2015-02-18	A5A1436-29	ND
2015-02-18	A5A1436-24	ND
2015-02-18	A5A1436-04	ND
2015-02-18	A5A1436-09	ND
2015-02-18	A5A1437-04	ND
2015-02-19	A5A1437-24	ND
2015-02-19	A5A1437-19	ND
2015-02-19	A5A1437-14	ND
2015-02-19	A5A1437-09	ND
2015-05-13	A5D2252-09	ND
2015-05-13	A5D2252-04	ND
2015-05-13	A5D2252-14	ND
2015-08-11	A5G2145-04	ND
2015-08-11	A5G2145-14	ND
2015-08-11	A5G2155-09	ND
2015-08-11	A5G2155-04	ND
2015-08-12	A5G2161-19	ND
2015-08-12	A5G2177-19	ND
2015-08-12	A5G2161-24	ND
2015-08-12	A5G2161-34	ND
2015-08-12	A5G2161-09	ND
2015-08-12	A5G2161-14	ND
2015-08-13	A5G2177-04	ND
2015-08-13	A5G2177-14	ND
2015-08-13	A5G2177-09	ND
2015-08-13	A5G2161-29	ND
2015-09-15	A5I0323-01	ND
2015-11-04	A5J2411-01	ND
2015-11-04	A5J1873-09	ND
2015-11-04	A5J1873-14	ND
2015-11-04	A5J1873-04	ND