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EWG's Tap Water Database — 2019 UPDATE

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Arsenic

City of Grand Prairie

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013N/A00N/A
20140.740 ppb85ND - 1.40 ppb
2015N/A00N/A
2016N/A00N/A
2017ND60ND

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
2014-04-23Q1412991005ND
2014-06-04Q1419331004ND
2014-06-26Q14240230311.40 ppb
2014-06-26Q14240230121.30 ppb
2014-06-26Q14240230111.10 ppb
2014-06-26Q14240230101.30 ppb
2014-09-10Q14429910080.820 ppb
2014-09-10Q1442991007ND
2017-01-05Q1700632004ND
2017-01-05Q1700632018ND
2017-06-27Q1726535028ND
2017-06-27Q1726535003ND
2017-06-27Q1726535027ND
2017-06-27Q1726535002ND