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EWG's Tap Water Database

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Arsenic

Cole County PWSD 1

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.

 

12

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
20120.450 ppb61ND - 2.70 ppb
2013N/A00N/A
2014N/A00N/A
20150.528 ppb62ND - 1.85 ppb

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
2012-02-16AB65967ND
2012-02-16AB65968ND
2012-02-16AB65970ND
2012-02-16AB659712.70 ppb
2012-02-16AB65972ND
2012-03-26AB70041ND
2015-02-18AC422361.85 ppb
2015-02-18AC422351.32 ppb
2015-02-18AC42234ND
2015-02-18AC42233ND
2015-02-18AC42237ND
2015-02-18AC42238ND