Antimony

Campti Water System

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
2014	N/A	0	N/A
2015	N/A	0	N/A
2016	ND	6	ND
2017	ND	8	ND
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
2016-10-17	35271370007	ND
2016-10-17	35271370005	ND
2016-10-17	35271370007	ND
2016-10-17	35271370006	ND
2016-10-17	35271370005	ND
2016-10-17	35271370006	ND
2017-06-13	35318513006	ND
2017-06-13	35318513011	ND
2017-06-13	35318513011	ND
2017-06-13	35318513006	ND
2017-09-22	35338808011	ND
2017-09-22	35338808010	ND
2017-09-22	35338808010	ND
2017-09-22	35338808011	ND
2019-02-04	35446763001	ND
2019-02-04	35446763001	ND
2019-09-09	35496811001	ND
2019-09-09	35496811002	ND
2019-09-09	35496811001	ND
2019-09-09	35496811002	ND
2019-12-05	35516907001	ND
2019-12-05	35516907001	ND