Barium

City of Tustin

Barium is a mineral present in rocks, soil and water. High concentrations of barium in drinking water increase the risk of cardiovascular disease and hypertension.

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
2013	N/A	0	N/A
2014	ND	3	ND
2015	ND	8	ND
2016	ND	5	ND
2017	ND	10	ND
2018	ND	2	ND
2019	ND	3	ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 700 ppb

The EWG Health Guideline of 700 ppb for barium was defined by EWG as benchmark that protects against harm to the kidneys and the cardiovascular system.

EPA Maximum Contaminant
Level (MCL) 2,000 ppb

The legal limit for barium, established in 1991, was based on a 10-week study of barium exposure in 11 adult male volunteers. This limit does not include any additional consideration of children’s health.

ppb = parts per billion

All test results

Date	Lab ID	Result
2014-02-25	4417-017-1115	ND
2014-02-25	4417-008-1050	ND
2014-05-28	4417-013-0830	ND
2015-03-11	4417-016-1015	ND
2015-05-13	4417-032-0955	ND
2015-07-27	4417-009-0940	ND
2015-07-27	4417-022-1030	ND
2015-11-18	4417-009-1150	ND
2015-11-18	4417-009-1155	ND
2015-11-18	4417-022-1135	ND
2015-11-18	4417-022-1125	ND
2016-02-24	4417-003-1110	ND
2016-02-24	4417-011-0950	ND
2016-06-02	4417-003-1035	ND
2016-06-02	4417-032-1015	ND
2016-12-07	4417-036-0910	ND
2017-01-31	4417-017-0950	ND
2017-01-31	4417-008-1020	ND
2017-02-06	4417-036-0850	ND
2017-03-06	4417-012-0935	ND
2017-03-15	4417-016-1105	ND
2017-03-23	4417-017-1130	ND
2017-04-05	4417-017-0830	ND
2017-05-11	4417-013-0830	ND
2017-05-31	4417-036-0840	ND
2017-07-27	4417-036-1140	ND
2018-01-30	4417-022-0915	ND
2018-02-22	4417-009-0930	ND
2019-02-19	4417-011-1030	ND
2019-02-19	4417-003-0955	ND
2019-02-25	4417-032-1000	ND