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EWG's Tap Water Database — 2019 UPDATE

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Arsenic

City of Seal Beach

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.

 

19

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
20130.711 ppb93ND - 2.40 ppb
2014ND40ND
2015ND20ND
2016N/A00N/A
2017N/A00N/A

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
2012-01-244417-002-0800ND
2012-01-244417-001-0820ND
2012-02-144417-009-0800ND
2012-05-094417-003-0740ND
2013-04-234417-003-08052.40 ppb
2013-04-234417-001-08452.00 ppb
2013-05-294417-001-1050ND
2013-05-294417-001-1100ND
2013-08-074417-001-0815ND
2013-08-074417-009-0855ND
2013-10-304417-001-0835ND
2013-12-034417-002-0835ND
2013-12-034417-003-08102.00 ppb
2014-01-304417-001-0930ND
2014-01-304417-002-0900ND
2014-02-254417-003-0725ND
2014-02-254417-003-0740ND
2015-01-204417-009-0805ND
2015-02-024417-002-1030ND