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EWG's Tap Water Database

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Arsenic

Beauregard Water Works District #3

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2010N/A00N/A
2011N/A00N/A
20120.923 ppb1210ND - 2.00 ppb
2013ND100ND
2014N/A00N/A
2015ND20ND

ppb = parts per billion.

State and national drinking water standards and health guidelines

Health Guideline 0.004 ppb

The 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.

ppb = parts per billion.

EPA Maximum Contaminant
Level (MCL) 10 ppb

The enforceable federal standard that defines the highest level of a contaminant allowed in drinking water.

ppb = parts per billion.

EPA Maximum Contaminant
Level Goal (MCLG)0 ppb

A non-enforceable federal health guideline. For cancer-causing chemicals, these health goals are typically set to zero.

ppb = parts per billion.

All test results

Date Lab ID Result
2012-06-193560137W120.540 ppb
2012-06-193560137W120.540 ppb
2012-11-05AD729761.000 ppb
2012-11-05AD72971ND
2012-11-05AD729661.000 ppb
2012-11-05AD729612.00 ppb
2012-11-05AD729811.000 ppb
2012-11-05AD729811.000 ppb
2012-11-05AD729761.000 ppb
2012-11-05AD72971ND
2012-11-05AD729661.000 ppb
2012-11-05AD729612.00 ppb
2013-01-14AD74744ND
2013-01-14AD74749ND
2013-01-14AD74754ND
2013-01-14AD74754ND
2013-01-14AD74749ND
2013-01-14AD74744ND
2013-01-14AD74739ND
2013-01-14AD74734ND
2013-01-14AD74734ND
2013-01-14AD74739ND
2015-03-0235177665002ND
2015-03-0235177665002ND