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EWG's Tap Water Database — 2019 UPDATE

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Arsenic

City of Kerrville

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
2013ND10ND
2014ND10ND
2015ND10ND
2016ND60ND
20171.25 ppb83ND - 3.50 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
2012-10-041210228003ND
2013-07-29AC25998ND
2014-02-10AC41871ND
2015-01-28AC78082ND
2016-02-01AD20978ND
2016-02-01AD20973ND
2016-04-18AD33309ND
2016-07-05AD42869ND
2016-10-24AD54249ND
2016-10-24AD54250ND
2017-02-13AD70299ND
2017-04-06AD787023.10 ppb
2017-05-08AD82958ND
2017-05-08AD82960ND
2017-05-08AD82959ND
2017-05-09AD832563.50 ppb
2017-05-09AD83251ND
2017-05-09AD832553.40 ppb