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EWG's Tap Water Database — 2021 UPDATE

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Barium

Felton Water Department

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

 

42

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND110ND
20164.40 ppb41ND - 17.6 ppb
2017N/A00N/A
2018ND110ND
2019ND120ND

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
2014-01-09S254559ND
2014-06-18S527141ND
2014-10-02S527157ND
2014-10-14S527162ND
2015-01-07S527203ND
2015-02-04S527208ND
2015-03-10S527215ND
2015-04-07S527220ND
2015-05-05S527225ND
2015-06-18S527232ND
2015-07-15S527237ND
2015-08-10S527245ND
2015-09-09S527256ND
2015-10-28S527262ND
2015-12-09S527272ND
2016-01-13S527279ND
2016-03-14S52728717.6 ppb
2016-11-09S527327ND
2016-12-12S527332ND
2018-02-23S781525ND
2018-04-09S764168ND
2018-05-16S764143ND
2018-06-13S764148ND
2018-07-26S764153ND
2018-08-21S764128ND
2018-09-10S764133ND
2018-10-26S813530ND
2018-11-05S813535ND
2018-11-13S813540ND
2018-12-26S813546ND
2019-01-15S813551ND
2019-02-11S813556ND
2019-03-15S813561ND
2019-04-25S813566ND
2019-05-30S813571ND
2019-06-28S813576ND
2019-07-11S813581ND
2019-08-20S813586ND
2019-09-30S813591ND
2019-10-24S813596ND
2019-11-21S813601ND
2019-12-11S813606ND