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EWG's Tap Water Database — 2019 UPDATE

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Selenium

Town of Princess Anne

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.

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.525 ppb41ND - 2.10 ppb
20130.829 ppb72ND - 3.00 ppb
2014N/A00N/A
2015ND20ND
20160.333 ppb91ND - 3.00 ppb
2017N/A00N/A

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

Date Lab ID Result
2012-01-12120112_08_A12010ND
2012-02-08120208_07_004259ND
2012-02-08120208_08_004261ND
2012-12-19121219_08_L443042.10 ppb
2013-03-14130314_01_L452803.00 ppb
2013-03-14130314_03_L45280ND
2013-03-14130314_04_L458052.80 ppb
2013-04-09130409_05_L45580ND
2013-04-09130409_02_L45580ND
2013-04-09130409_06_L45580ND
2013-10-17131017_03_002074ND
2015-09-29L5834178-5ND
2015-12-28L597294_1ND
2016-03-30E16003647002ND
2016-03-30E16003647004ND
2016-08-05E17000499003ND
2016-08-05E17000499002ND
2016-12-21L6605660_1ND
2016-12-21L6605660_23.00 ppb
2016-12-21L6605660_3ND
2016-12-21L6605660_4ND
2016-12-24L6609497_1ND