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EWG's Tap Water Database — 2019 UPDATE

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Arsenic

Naval Station, Newport

NOTE: Naval Station, Newport purchases water from City of Newport which is required to test for arsenic. Sample information shown below was taken by City of Newport.

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.

 

52

Samples

0

Samples exceeding legal limit (MCL)

20

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.444 ppb93ND - 2.00 ppb
20130.750 ppb84ND - 3.00 ppb
20140.250 ppb82ND - 1.000 ppb
20150.750 ppb84ND - 2.00 ppb
20160.875 ppb84ND - 2.00 ppb
20170.364 ppb113ND - 2.00 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

NOTE: Naval Station, Newport purchases water from City of Newport which is required to test for arsenic. Sample information shown below was taken by City of Newport.

Date Lab ID Result
2012-01-091200054-01_WL68ND
2012-01-091200051-01_WL68ND
2012-05-071201005-04_WL68ND
2012-05-071201005-03_WL68ND
2012-05-071201005-02_WL68ND
2012-07-091201873-01_WL682.00 ppb
2012-07-091201873-03_WL68ND
2012-07-091201873-02_WL681.000 ppb
2012-07-091201873-04_WL681.000 ppb
2013-01-141300133-06_WL68ND
2013-01-141300133-07_WL68ND
2013-04-091300962-01_WL68ND
2013-04-091300962-02_WL68ND
2013-07-221302371-05_WL681.000 ppb
2013-07-221302371-03_WL683.00 ppb
2013-07-221302371-02_WL681.000 ppb
2013-07-221302371-04_WL681.000 ppb
2014-01-061401012-03_WL68ND
2014-01-061401012-08_WL68ND
2014-05-211402793-06_WL68ND
2014-05-211402793-05_WL68ND
2014-07-021403537-01_WL68ND
2014-07-021403537-05_WL681.000 ppb
2014-07-021403537-04_WL681.000 ppb
2014-07-021403537-03_WL68ND
2015-01-121501069-08_WL68ND
2015-01-121501069-03_WL68ND
2015-06-011502384-02_WL68ND
2015-06-011502384-01_WL68ND
2015-07-201503232-05_WL682.00 ppb
2015-07-201503232-03_WL681.000 ppb
2015-07-201503232-06_WL681.000 ppb
2015-07-201503232-04_WL682.00 ppb
2016-01-111600887-08_WL68ND
2016-01-111600887-02_WL68ND
2016-05-091602070-04_WL68ND
2016-05-091602070-05_WL68ND
2016-07-251603626-01_WL682.00 ppb
2016-07-251603626-03_WL681.000 ppb
2016-07-251603626-04_WL682.00 ppb
2016-07-251603626-02_WL682.00 ppb
2017-01-241701020-02_WL68ND
2017-01-251701027-06_WL68ND
2017-05-151702185-01_WL68ND
2017-05-151702185-02_WL68ND
2017-05-151702185-03_WL68ND
2017-07-101703108-03_WL682.00 ppb
2017-07-101703108-02_WL681.000 ppb
2017-07-101703108-01_WL681.000 ppb
2017-07-101703108-04_WL68ND
2017-11-141704991-01_WL68ND
2017-11-201705061-04_WL68ND