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EWG's Tap Water Database — 2019 UPDATE

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Arsenic

City of Newport 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.

 

21

Samples

0

Samples exceeding legal limit (MCL)

8

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.729 ppb72ND - 2.70 ppb
20130.867 ppb31ND - 2.60 ppb
2014N/A00N/A
20150.925 ppb41ND - 3.70 ppb
2016N/A00N/A
20172.79 ppb74ND - 5.30 ppb

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
2012-02-234417-004-08002.40 ppb
2012-03-274417-005-08502.70 ppb
2012-05-174417-002-0830ND
2012-07-124417-003-0740ND
2012-07-124417-003-0755ND
2012-12-134417-003-0810ND
2012-12-134417-003-0825ND
2013-09-034417-003-1015ND
2013-09-034417-004-10502.60 ppb
2013-09-034417-005-1040ND
2015-03-024417-004-08153.70 ppb
2015-03-024417-005-0835ND
2015-05-044417-002-1050ND
2015-05-044417-003-1115ND
2017-02-094417-004-09504.50 ppb
2017-03-224417-004-11205.30 ppb
2017-03-224417-004-11055.10 ppb
2017-05-034417-004-12054.60 ppb
2017-05-034417-003-1220ND
2017-05-034417-002-1235ND
2017-05-034417-005-1145ND