Know Your Environment. Protect Your Health.

Selenium

Cws - Upper Bodfish Water System

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.

 

148

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND210ND
2019ND190ND
2020ND160ND
2021ND190ND
20220.0878 ppb412ND - 1.80 ppb
20230.0313 ppb321ND - 1.000 ppb

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
2018-01-17CA1510026_007_007-201801171059ND
2018-02-21CA1510026_005_005-201802211343ND
2018-02-21CA1510026_004_004-201802211334ND
2018-02-21CA1510026_007_007-201802211325ND
2018-03-13CA1510026_006_006-201803131300ND
2018-03-13CA1510026_007_007-201803131316ND
2018-04-04CA1510026_007_007-201804041042ND
2018-05-31CA1510026_004_004-201805311322ND
2018-05-31CA1510026_007_007-201805311333ND
2018-05-31CA1510026_005_005-201805311327ND
2018-06-12CA1510026_007_007-201806121429ND
2018-07-16CA1510026_007_007-201807161325ND
2018-08-01CA1510026_007_007-201808011408ND
2018-08-01CA1510026_004_004-201808011356ND
2018-08-01CA1510026_005_005-201808011401ND
2018-08-08CA1510026_007_007-201808081446ND
2018-08-13CA1510026_DST_901-201808131219ND
2018-08-13CA1510026_DST_902-201808131227ND
2018-09-06CA1510026_007_007-201809061336ND
2018-10-08CA1510026_007_007-201810081224ND
2018-12-10CA1510026_007_007-201812101100ND
2019-01-22CA1510026_007_007-201901221110ND
2019-02-06CA1510026_007_007-201902061227ND
2019-02-06CA1510026_004_004-201902061245ND
2019-02-06CA1510026_005_005-201902061255ND
2019-02-25CA1510026_004_004-201902251200ND
2019-02-25CA1510026_005_005-201902251210ND
2019-03-06CA1510026_007_007-201903061455ND
2019-03-27CA1510026_007_007-201903271045ND
2019-04-09CA1510026_007_007-201904091343ND
2019-05-06CA1510026_007_007-201905061133ND
2019-05-06CA1510026_004_004-201905061120ND
2019-05-06CA1510026_005_005-201905061125ND
2019-06-05CA1510026_007_007-201906051153ND
2019-09-11CA1510026_007_007-201909110950ND
2019-10-15CA1510026_007_007-201910151215ND
2019-11-19CA1510026_004_004-201911191345ND
2019-11-19CA1510026_006_006-201911191350ND
2019-11-19CA1510026_005_005-201911191348ND
2019-11-19CA1510026_007_007-201911191352ND
2020-02-04CA1510026_005_005-202002041310ND
2020-02-04CA1510026_007_007-202002041250ND
2020-04-01CA1510026_006_006-202004011345ND
2020-04-01CA1510026_007_007-202004011333ND
2020-06-08CA1510026_006_006-202006081125ND
2020-06-08CA1510026_007_007-202006081115ND
2020-08-05CA1510026_007_007-202008051121ND
2020-08-05CA1510026_005_005-202008051201ND
2020-08-05CA1510026_004_004-202008051155ND
2020-08-05CA1510026_006_006-202008051150ND
2020-08-18CA1510026_004_004-202008181007ND
2020-08-18CA1510026_005_005-202008181011ND
2020-08-18CA1510026_006_006-202008181002ND
2020-08-18CA1510026_007_007-202008180955ND
2020-10-20CA1510026_007_007-202010201139ND
2020-10-20CA1510026_006_006-202010201129ND
2021-02-04CA1510026_007_007-202102041207ND
2021-02-04CA1510026_005_005-202102041218ND
2021-02-04CA1510026_004_004-202102041214ND
2021-03-02CA1510026_007_007-202103020814ND
2021-04-06CA1510026_007_007-202104061252ND
2021-05-04CA1510026_005_005-202105041405ND
2021-05-04CA1510026_004_004-202105041400ND
2021-05-04CA1510026_007_007-202105041342ND
2021-06-01CA1510026_007_007-202106011343ND
2021-07-13CA1510026_007_007-202107131158ND
2021-08-05CA1510026_004_004-202108051342ND
2021-08-05CA1510026_007_007-202108051336ND
2021-08-05CA1510026_005_005-202108051347ND
2021-09-23CA1510026_007_007-202109231341ND
2021-10-07CA1510026_007_007-202110071434ND
2021-11-18CA1510026_005_005-202111181143ND
2021-11-18CA1510026_004_004-202111181138ND
2021-11-18CA1510026_007_007-202111181126ND
2021-12-07CA1510026_007_007-202112071327ND
2022-01-18CA1510026_007_007-202201181324ND
2022-02-17CA1510026_004_004-202202170920ND
2022-02-17CA1510026_004_004-202202170920ND
2022-02-17CA1510026_007_007-202202170956ND
2022-02-17CA1510026_005_005-202202170950ND
2022-02-24CA1510026_005_005-202202241144ND
2022-03-08CA1510026_007_007-202203081107ND
2022-03-15CA1510026_006_006-202203150927ND
2022-03-15CA1510026_007_007-202203150932ND
2022-04-06CA1510026_006_006-202204061420ND
2022-04-06CA1510026_007_007-202204061425ND
2022-04-19CA1510026_007_007-202204191312ND
2022-04-19CA1510026_006_006-202204191317ND
2022-05-03CA1510026_005_005-202205031204ND
2022-05-03CA1510026_005_005-202205031204ND
2022-05-03CA1510026_004_004-202205031159ND
2022-05-03CA1510026_007_007-202205031143ND
2022-05-03CA1510026_007_007-202205031143ND
2022-05-03CA1510026_004_004-202205031159ND
2022-05-03CA1510026_006_006-202205031153ND
2022-05-03CA1510026_006_006-202205031153ND
2022-06-01CA1510026_006_006-202206011149ND
2022-06-01CA1510026_007_007-202206011143ND
2022-07-13CA1510026_006_006-2022071313491.80 ppb
2022-07-13CA1510026_007_007-202207131404ND
2022-07-13CA1510026_006_006-2022071313491.80 ppb
2022-08-10CA1510026_004_004-202208101406ND
2022-08-10CA1510026_006_006-202208101400ND
2022-08-10CA1510026_005_005-202208101411ND
2022-08-10CA1510026_007_007-202208101424ND
2022-09-14CA1510026_007_007-202209140910ND
2022-10-06CA1510026_007_007-202210061047ND
2022-10-11CA1510026_007_007-202210111320ND
2022-10-11CA1510026_006_006-202210111327ND
2022-10-11CA1510026_007_007-202210111320ND
2022-10-11CA1510026_006_006-202210111327ND
2022-11-08CA1510026_004_004-202211081309ND
2022-11-08CA1510026_007_007-202211081254ND
2022-11-08CA1510026_005_005-202211081315ND
2022-12-06CA1510026_007_007-202212061115ND
2022-12-06CA1510026_006_006-202212061122ND
2023-01-17CA1510026_007_007-202301171100ND
2023-02-01CA1510026_007_007-202302011515ND
2023-02-06CA1510026_006_006-202302061206ND
2023-02-06CA1510026_005_005-202302061217ND
2023-02-06CA1510026_007_007-202302061158ND
2023-02-06CA1510026_004_004-202302061217ND
2023-02-06CA1510026_006_006-202302061206ND
2023-02-06CA1510026_005_005-202302061217ND
2023-03-06CA1510026_007_007-202303061010ND
2023-03-06CA1510026_006_006-202303060954ND
2023-04-11CA1510026_006_006-202304111356ND
2023-04-12CA1510026_007_007-202304121220ND
2023-05-08CA1510026_004_004-202305081140ND
2023-05-08CA1510026_005_005-202305081144ND
2023-05-08CA1510026_007_007-202305081135ND
2023-05-08CA1510026_006_006-202305081127ND
2023-06-06CA1510026_006_006-2023060611471.000 ppb
2023-06-06CA1510026_007_007-202306061152ND
2023-07-11CA1510026_007_007-202307111418ND
2023-07-12CA1510026_006_006-202307121145ND
2023-08-09CA1510026_004_004-202308091333ND
2023-08-09CA1510026_006_006-202308091323ND
2023-08-09CA1510026_007_007-202308091347ND
2023-08-09CA1510026_005_005-202308091336ND
2023-09-05CA1510026_007_007-202309051311ND
2023-10-03CA1510026_006_006-202310031055ND
2023-10-03CA1510026_007_007-202310031050ND
2023-11-06CA1510026_006_006-202311061436ND
2023-11-13CA1510026_004_004-202311131135ND
2023-11-13CA1510026_007_007-202311131130ND
2023-11-13CA1510026_005_005-202311131140ND
2023-12-13CA1510026_007_007-202312131400ND