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EWG's Tap Water Database — 2019 UPDATE

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Arsenic

United Wappinger Water Improvement District

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)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20121.000 ppb220.900 ppb - 1.10 ppb
20130.525 ppb43ND - 0.800 ppb
2014ND20ND
2015N/A00N/A
2016ND20ND
2017ND20ND

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
2012-12-05AT1222341.10 ppb
2012-12-05HH1222300.900 ppb
2013-06-05MB13985A0.600 ppb
2013-06-05MB13982AND
2013-12-04HT1323070.800 ppb
2013-12-04AT1323020.700 ppb
2014-12-0912101426ND
2014-12-0912101427ND
2016-11-29UW164141RND
2016-11-30UW164250RND
2017-11-28UW172960RND
2017-11-28UW172957RND