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EWG's Tap Water Database — 2019 UPDATE

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Arsenic

City of Auburn

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.

 

39

Samples

0

Samples exceeding legal limit (MCL)

12

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.833 ppb63ND - 2.00 ppb
20130.333 ppb61ND - 2.00 ppb
20140.500 ppb62ND - 2.00 ppb
20150.600 ppb52ND - 2.00 ppb
20160.333 ppb61ND - 2.00 ppb
20170.500 ppb103ND - 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

Date Lab ID Result
2012-07-18438122.00 ppb
2012-07-18438131.000 ppb
2012-07-1843814ND
2012-07-1843815ND
2012-07-1843816ND
2012-07-18438112.00 ppb
2013-07-02483952.00 ppb
2013-07-0248394ND
2013-07-0248393ND
2013-07-0248392ND
2013-07-0248391ND
2013-10-0850045ND
2014-08-2653706ND
2014-08-2653707ND
2014-08-26537081.000 ppb
2014-08-26537092.00 ppb
2014-08-2653722ND
2014-08-2653723ND
2015-08-19581501.000 ppb
2015-08-1958148ND
2015-08-1958153ND
2015-08-19581512.00 ppb
2015-08-1958149ND
2016-08-03ND
2016-08-03ND
2016-08-03ND
2016-08-032.00 ppb
2016-08-03ND
2016-08-17ND
2017-08-16ND
2017-08-162.00 ppb
2017-08-16ND
2017-08-16ND
2017-08-16ND
2017-08-16ND
2017-08-16ND
2017-08-16ND
2017-11-282.00 ppb
2017-12-051.000 ppb