Know Your Environment. Protect Your Health.

Selenium

Sugar Mountain Utility

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.

 

21

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND10ND
2020N/A00N/A
2021N/A00N/A
2022ND180ND
2023ND20ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2019-10-157041-101519-OOXIND
2022-03-157041-031522-OOWIND
2022-05-187041-051822-OOFIND
2022-05-187041-051822-OPQIND
2022-05-187041-051822-OOTIND
2022-05-187041-051822-OOSIND
2022-05-187041-051822-OORIND
2022-05-187041-051822-OONIND
2022-05-187041-051822-OOIIND
2022-05-187041-051822-OOEIND
2022-05-187041-051822-OODIND
2022-05-187041-051822-OOCIND
2022-05-187041-051822-OOBIND
2022-05-187041-051822-OOAIND
2022-05-187041-051822-OLMIND
2022-05-187041-051822-OJKIND
2022-05-187041-051822-OGHIND
2022-11-017041-110122-OOVIND
2022-11-217041-112122-OOXIND
2023-08-30752-11121-1ND
2023-08-30752-11122-1ND