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EWG's Tap Water Database — 2019 UPDATE

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Selenium

Kelly Lane WCID 2

NOTE: Kelly Lane WCID 2 purchases water from Manville WSC which is required to test for selenium. Sample information shown below was taken by Manville WSC.

Selenium is an essential element in diets. But too much selenium can decrease thyroid hormone production and cause hair loss, skin lesions and brittle fingernails.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
20130.675 ppb21ND - 1.35 ppb
2014N/A00N/A
2015N/A00N/A
20161.03 ppb72ND - 3.80 ppb
20171.42 ppb51ND - 7.10 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 30 ppb

The EWG Health Guideline of 30 ppb for selenium 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 hair loss and nail damage.

EPA Maximum Contaminant
Level (MCL) 50 ppb

The legal limit for selenium, established in 1991, was based on human epidemiological studies of populations exposed to naturally occurring selenium in drinking water. This limit does not include any additional consideration of children’s health.

ppb = parts per billion

All test results

NOTE: Kelly Lane WCID 2 purchases water from Manville WSC which is required to test for selenium. Sample information shown below was taken by Manville WSC.

Date Lab ID Result
2013-02-191302607011ND
2013-02-1913026070101.35 ppb
2016-04-25AD33904ND
2016-04-25AD338993.80 ppb
2016-04-25AD339003.40 ppb
2016-04-25AD33902ND
2016-04-25AD33901ND
2016-04-25AD33903ND
2016-11-09AD57315ND
2017-01-23AD65998ND
2017-01-23AD659997.10 ppb
2017-04-27AD81414ND
2017-04-27AD81415ND
2017-04-27AD81409ND