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EWG's Tap Water Database — 2019 UPDATE

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Mercury (inorganic)

City of Scottsdale

Mercury is a potent neurotoxin that also damages the kidneys and other internal organs. Mercury enters drinking water from industrial pollution, mining wastes and coal-fired power plants.

 

26

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013ND20ND
2014ND110ND
2015ND20ND
2016ND20ND
2017ND70ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 1.2 ppb

The EWG Health Guideline of 1.2 ppb for mercury (inorganic) 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 harm to internal organs.

EPA Maximum Contaminant
Level (MCL) 2 ppb

The legal limit for inorganic mercury, established in 1991, was based on toxicity studies conducted in laboratory animals in the 1970s and 1980s. This limit does not include any additional consideration of children’s health.

ppb = parts per billion

All test results

Date Lab ID Result
2012-03-07AB29691ND
2012-05-31AB31398ND
2013-03-12AB37901IND
2013-06-04AB39410ND
2014-02-05AB45662IND
2014-02-05AB45661IND
2014-02-05AB45660IND
2014-02-05AB45659IND
2014-02-11AB45852IND
2014-02-12AB45865IND
2014-02-13AB45913IND
2014-02-13AB45912IND
2014-03-13AB46644IND
2014-06-03AB48513ND
2014-08-27AB50551IND
2015-01-26AB54180ND
2015-05-19AB57086ND
2016-01-12AB62917JND
2016-06-09AB66662ND
2017-01-23AB72209TND
2017-01-31AB72398TND
2017-01-31AB72396TND
2017-04-11AB74281ND
2017-04-18AZ74456ND
2017-05-11AB75252ND
2017-05-25AB75560ND