Know Your Environment. Protect Your Health.

Selenium

Fcwwd #41/shaver Lake

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.

 

83

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND320ND
2019ND140ND
2020ND40ND
2021ND160ND
2022ND130ND
2023ND40ND

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
2018-03-12CA1010017_005_005-201803121119ND
2018-03-12CA1010017_008_008-201803121200ND
2018-03-12CA1010017_014_014-201803121310ND
2018-03-12CA1010017_033_033-201803121239ND
2018-03-12CA1010017_015_015-201803121341ND
2018-03-12CA1010017_001_001-201803121055ND
2018-03-14CA1010017_034_034-201803140320ND
2018-03-14CA1010017_062_062-201803141234ND
2018-03-14CA1010017_004_004-201803141053ND
2018-03-16CA1010017_011_011-201803161212ND
2018-03-16CA1010017_036_036-201803161304ND
2018-03-16CA1010017_035_035-201803161334ND
2018-03-16CA1010017_012_012-201803161225ND
2018-03-16CA1010017_006_006-201803161041ND
2018-03-19CA1010017_009_009-201803191332ND
2018-03-19CA1010017_042_042-201803191207ND
2018-04-09CA1010017_001_001-201804091058ND
2018-04-09CA1010017_033_033-201804091159ND
2018-04-09CA1010017_004_004-201804091113ND
2018-04-09CA1010017_005_005-201804091117ND
2018-04-11CA1010017_006_006-201804111318ND
2018-04-11CA1010017_008_008-201804111212ND
2018-04-13CA1010017_062_062-201804131313ND
2018-04-13CA1010017_034_034-201804131345ND
2018-04-13CA1010017_015_015-201804131040ND
2018-04-13CA1010017_014_014-201804131404ND
2018-04-18CA1010017_035_035-201804181037ND
2018-04-18CA1010017_012_012-201804181148ND
2018-04-18CA1010017_036_036-201804181054ND
2018-04-18CA1010017_011_011-201804181135ND
2018-04-20CA1010017_042_042-201804201155ND
2018-04-20CA1010017_009_009-201804201329ND
2019-06-19CA1010017_056_056-201906190926ND
2019-06-19CA1010017_057_057-201906190910ND
2019-06-19CA1010017_058_058-201906190855ND
2019-06-19CA1010017_037_037-201906191030ND
2019-06-19CA1010017_065_065-201906190940ND
2019-06-19CA1010017_066_066-201906190957ND
2019-06-19CA1010017_040_040-201906191115ND
2019-06-19CA1010017_044_044-201906191320ND
2019-06-19CA1010017_046_046-201906191000ND
2019-06-19CA1010017_059_059-201906190955ND
2019-06-19CA1010017_043_043-201906191310ND
2019-06-19CA1010017_041_041-201906191120ND
2019-06-26CA1010017_066_066-201906261230ND
2019-12-18CA1010017_038_038-201912180933ND
2020-04-21CA1010017_002_002-202004210850ND
2020-05-06CA1010017_049_049-202005061025ND
2020-05-06CA1010017_047_047-202005061050ND
2020-05-06CA1010017_048_048-202005060920ND
2021-03-08CA1010017_009_009-202103081140ND
2021-03-08CA1010017_001_001-202103081300ND
2021-04-05CA1010017_008_008-202104051100ND
2021-04-05CA1010017_006_006-202104050900ND
2021-04-05CA1010017_004_004-202104051120ND
2021-04-06CA1010017_012_012-202104061300ND
2021-04-06CA1010017_011_011-202104061245ND
2021-04-06CA1010017_042_042-202104061230ND
2021-04-12CA1010017_015_015-202104121345ND
2021-04-12CA1010017_014_014-202104121400ND
2021-04-13CA1010017_062_062-202104131300ND
2021-04-13CA1010017_034_034-202104131155ND
2021-04-14CA1010017_005_005-202104141326ND
2021-04-14CA1010017_033_033-202104141300ND
2021-04-19CA1010017_035_035-202104191045ND
2021-04-19CA1010017_036_036-202104191055ND
2022-02-11CA1010017_066_066-202202111100ND
2022-02-11CA1010017_041_041-202202111400ND
2022-03-02CA1010017_059_059-202203021255ND
2022-03-02CA1010017_065_065-202203021240ND
2022-04-06CA1010017_044_044-202204061030ND
2022-04-06CA1010017_043_043-202204061045ND
2022-04-06CA1010017_040_040-202204061105ND
2022-04-06CA1010017_037_037-202204061135ND
2022-04-12CA1010017_058_058-202204121345ND
2022-04-12CA1010017_057_057-202204121325ND
2022-04-12CA1010017_056_056-202204121305ND
2022-04-19CA1010017_038_038-202204191030ND
2022-04-19CA1010017_046_046-202204191300ND
2023-04-24CA1010017_047_047-202304241125ND
2023-04-24CA1010017_048_048-202304241140ND
2023-04-24CA1010017_002_002-202304241100ND
2023-04-24CA1010017_049_049-202304241210ND