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EWG's Tap Water Database — 2019 UPDATE

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Selenium

Wallington Water Department

NOTE: Wallington Water Department purchases water from Passaic Valley Water Commission which is required to test for selenium. Sample information shown below was taken by Passaic Valley Water Commission.

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.320 ppb42ND - 0.670 ppb
2013ND40ND
2014ND40ND
20150.173 ppb41ND - 0.690 ppb
20160.335 ppb42ND - 0.740 ppb
2017ND40ND

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: Wallington Water Department purchases water from Passaic Valley Water Commission which is required to test for selenium. Sample information shown below was taken by Passaic Valley Water Commission.

Date Lab ID Result
2012-01-09025161-001ND
2012-04-02026365-0010.610 ppb
2012-07-09027040-0010.670 ppb
2012-10-01027761-001ND
2013-01-07028281-001ND
2013-04-02028795-001ND
2013-07-01029264-001ND
2013-10-01029830-001ND
2014-01-07030397-001ND
2014-04-07030809-001ND
2014-07-09031389-001ND
2014-10-06031928-001ND
2015-01-0515010606-010.690 ppb
2015-04-0615040709-04ND
2015-07-0615070705-01ND
2015-10-0515100602-01ND
2016-01-0416010506-01ND
2016-04-0416040502-010.740 ppb
2016-07-1216071303-010.600 ppb
2016-10-0316100311-01ND
2017-01-0317010402-01ND
2017-04-0317040402-01ND
2017-07-1117071205-01ND
2017-10-0217100302-01ND