Antimony

Town of Princess Anne

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.

MORE ABOUT THIS CONTAMINANT

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	2	ND
2016	ND	9	ND
2017	N/A	0	N/A
2018	N/A	0	N/A
2019	ND	8	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
2015-09-29	L5834178-5	ND
2015-12-28	L597294_1	ND
2016-03-30	E16003647002	ND
2016-03-30	E16003647004	ND
2016-08-05	E17000499002	ND
2016-08-05	E17000499003	ND
2016-12-21	L6605660_3	ND
2016-12-21	L6605660_4	ND
2016-12-21	L6605660_2	ND
2016-12-21	L6605660_1	ND
2016-12-24	L6609497_1	ND
2019-12-03	L7176487-20	ND
2019-12-03	L7176487-11	ND
2019-12-16	L7178327_6	ND
2019-12-16	L7178327_9	ND
2019-12-16	L7178327_12	ND
2019-12-16	L7178327_3	ND
2019-12-17	L7178400_3	ND
2019-12-18	L7178557-3	ND