Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Arsenic

Westbury WD

Arsenic is a potent carcinogen and common contaminant in drinking water. Arsenic causes thousands of cases of cancer each year in the U.S. Click here to read more about arsenic.

MORE ABOUT THIS CONTAMINANT

 

58

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND110ND
2015ND110ND
2016ND130ND
2017ND120ND
2018N/A00N/A
2019ND110ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.004 ppb

The EWG Health Guideline of 0.004 ppb for arsenic 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 cancer.

EPA Maximum Contaminant
Level (MCL) 10 ppb

The legal limit for arsenic, established in 2001, was based on costs for arsenic removal, as calculated at the time that the standard was set. This limit does not fully protect against the risk of cancer due to arsenic exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2014-05-291405K20-006-PRIND
2014-05-291405K20-009-PRIND
2014-05-291405K20-007-PRIND
2014-05-291405K20-004-PRIND
2014-05-291405K20-008-PRIND
2014-05-291405K20-011-PRIND
2014-05-291405K20-001-PRIND
2014-05-291405K20-002-PRIND
2014-05-291405K20-010-PRIND
2014-05-291405K20-005-PRIND
2014-05-291405K20-003-PRIND
2015-05-261505H81-004ND
2015-05-261505H81-003-PRIND
2015-05-261505H81-005-PRIND
2015-05-261505H81-008-PRIND
2015-05-261505H81-010-PRIND
2015-05-261505H81-007-PRIND
2015-05-261505H81-002-PRIND
2015-05-261505H81-006-PRIND
2015-05-261505H81-001-PRIND
2015-05-261505H81-009-PRIND
2015-06-091506715-001-PRIND
2016-05-231605K37-006-PRIND
2016-05-231605K35-002-PRIND
2016-05-231605K37-008-PRIND
2016-05-231605K37-004-PRIND
2016-05-231605K37-005-PRIND
2016-05-231605K37-001-PRIND
2016-05-231605K35-001-PRIND
2016-05-231605K37-009-PRIND
2016-05-231605K37-003-PRIND
2016-05-231605K34-001-PRIND
2016-05-231605K37-002-PRIND
2016-05-231605K37-007-PRIND
2016-12-19707142002ND
2017-05-227019227006-PRIND
2017-05-227019227012-PRIND
2017-05-227019227004-PRIND
2017-05-227019227003-PRIND
2017-05-227019227005-PRIND
2017-05-227019227007-PRIND
2017-05-227019227009-PRIND
2017-05-227019227002-PRIND
2017-05-227019227011-PRIND
2017-05-227019227008-PRIND
2017-05-227019227010-PRIND
2017-05-227019227001-PRIND
2019-06-047091927005-PRIND
2019-06-047091927004-PRIND
2019-06-047091927002-PRIND
2019-06-047091927007-PRIND
2019-06-047091927006-PRIND
2019-06-047091927008-PRIND
2019-06-047091927009-PRIND
2019-06-0470919270010-PRIND
2019-06-047091927001-PRIND
2019-06-047091927011-PRIND
2019-06-047091927003-PRIND