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EWG's Tap Water Database — 2019 UPDATE

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Mercury (inorganic)

Florin County Water District

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013ND50ND
2014N/A00N/A
2015ND30ND
2016ND50ND
2017N/A00N/A

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
2012-05-305810-009-0956ND
2012-08-295810-003-0937ND
2013-04-155810-012-1325ND
2013-07-185810-007-0914ND
2013-12-125810-010-1304ND
2013-12-125810-007-0950ND
2013-12-125810-006-1427ND
2015-12-095810-003-1022ND
2015-12-095810-009-1136ND
2015-12-102371-002-1356ND
2016-04-285810-004-1100ND
2016-04-285810-012-0951ND
2016-09-085810-010-1204ND
2016-09-085810-007-0905ND
2016-09-085810-006-1242ND