Barium

Lahaina

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	Detections	Range of results
2013	N/A	0	0	N/A
2014	1.15 ppb	8	2	ND - 5.70 ppb
2015	1.90 ppb	2	1	ND - 3.80 ppb
2016	1.97 ppb	3	1	ND - 5.90 ppb
2017	1.20 ppb	5	1	ND - 6.00 ppb
2018	1.07 ppb	3	1	ND - 3.20 ppb
2019	1.60 ppb	3	1	ND - 4.80 ppb

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
2014-04-03	201404080935	3.50 ppb
2014-04-03	201404080617	ND
2014-04-04	201404080992	ND
2014-04-11	201404150350	ND
2014-08-14	201408190783	ND
2014-08-14	201408190815	ND
2014-08-14	201408190822	ND
2014-08-14	201408190830	5.70 ppb
2015-01-26	201501280332	ND
2015-01-26	201501280756	3.80 ppb
2016-02-22		ND
2016-02-22		5.90 ppb
2016-09-26		ND
2017-01-30		ND
2017-01-30		ND
2017-01-30		6.00 ppb
2017-01-30		ND
2017-01-30		ND
2018-01-31	201801031006	3.20 ppb
2018-01-31	201801031004	ND
2018-01-31	201802020345	ND
2019-01-30	201902010215	4.80 ppb
2019-01-30	201902010199	ND
2019-01-30	201902010224	ND