Antimony

Lebanon

Antimony is a naturally occurring metal that enters tap water from plumbing fittings and also from industrial uses, such as production of metal alloys, batteries and plastics. Antimony causes organ damage and shortens lifespans in studies of laboratory animals.

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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
2013	N/A	0	N/A
2014	N/A	0	N/A
2015	N/A	0	N/A
2016	ND	13	ND
2017	ND	4	ND
2018	ND	1	ND
2019	ND	6	ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 1 ppb

The EWG Health Guideline of 1 ppb for antimony was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against change to the stomach and intestines.

EPA Maximum Contaminant
Level (MCL) 6 ppb

The legal limit for antimony, established in 1992, was based on a toxicity study in laboratory animals published in 1970. This limit does not include any additional consideration of children’s health.

ppb = parts per billion

All test results

Date	Lab ID	Result
2016-02-29	AC66563	ND
2016-02-29	AC66569	ND
2016-02-29	AC66568	ND
2016-02-29	AC66565	ND
2016-02-29	AC66564	ND
2016-02-29	AC66567	ND
2016-02-29	AC66566	ND
2016-03-25	AC69046	ND
2016-03-25	AC69033	ND
2016-04-04	AC70292	ND
2016-04-04	AC70293	ND
2016-08-02	AC80038	ND
2016-10-12	AC85441	ND
2017-01-30	AC89314	ND
2017-04-17	AC94652	ND
2017-07-18	AD01718	ND
2017-10-24	AD08055	ND
2018-05-08	AD18222	ND
2019-03-04	AD39580	ND
2019-03-04	AD39581	ND
2019-03-04	AD39582	ND
2019-03-04	AD39583	ND
2019-03-04	AD39584	ND
2019-03-04	AD39585	ND