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EWG's Tap Water Database — 2019 UPDATE

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Selenium

City of Paint Rock

NOTE: City of Paint Rock purchases water from Millersview-doole Water Supply Corporation which is required to test for selenium. Sample information shown below was taken by Millersview-doole Water Supply Corporation.

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.

 

7

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
20133.88 ppb113.88 ppb
20145.20 ppb115.20 ppb
20153.90 ppb113.90 ppb
20164.60 ppb114.60 ppb
2017ND20ND

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: City of Paint Rock purchases water from Millersview-doole Water Supply Corporation which is required to test for selenium. Sample information shown below was taken by Millersview-doole Water Supply Corporation.

Date Lab ID Result
2013-06-26Q1302971004ND
2014-02-27AC4496012.7 ppb
2014-02-27AC449643.90 ppb
2015-02-03AC789623.70 ppb
2016-02-17AD242134.60 ppb
2017-03-01Q1708974003ND
2017-05-17Q1720172003ND