Know Your Environment. Protect Your Health.

Beryllium

Cws-split Mountain Water System

Beryllium is a toxic metal that is both naturally occurring and released into the environment from industrial pollution and incineration. Beryllium can damage lungs, bones and the digestive system.

 

68

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND60ND
2019ND50ND
2020ND130ND
2021ND30ND
2022ND180ND
2023ND230ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 1 ppb

The EWG Health Guideline of 1 ppb for beryllium 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 harm to the stomach and intestines.

EPA Maximum Contaminant
Level (MCL): 4 ppb

The legal limit for beryllium, established in 1992, was based on a toxicity study in laboratory animals published in 1970. This limit does not include any additional consideration of children’s health.

ppb = parts per billion

All test results

Date Lab ID Result
2018-01-23CA1500407_006_006-201801230950ND
2018-01-23CA1500407_005_005-201801231010ND
2018-02-07CA1500407_006_006-201802071430ND
2018-02-07CA1500407_005_005-201802071345ND
2018-05-02CA1500407_005_005-201805020835ND
2018-05-02CA1500407_006_006-201805020935ND
2019-01-15CA1500407_005_005-201901151150ND
2019-01-15CA1500407_006_006-201901151132ND
2019-05-08CA1500407_006_006-201905081138ND
2019-05-08CA1500407_005_005-201905081111ND
2019-05-13CA1500407_002_002-201905130958ND
2020-01-22CA1500407_005_005-202001221450ND
2020-01-22CA1500407_006_006-202001221438ND
2020-02-11CA1500407_007_007-202002111247ND
2020-05-06CA1500407_006_006-202005061329ND
2020-05-06CA1500407_005_005-202005061335ND
2020-06-09CA1500407_006_006-202006090834ND
2020-06-09CA1500407_005_005-202006090820ND
2020-08-05CA1500407_005_005-202008051050ND
2020-08-05CA1500407_006_006-202008051023ND
2020-10-21CA1500407_006_006-202010211345ND
2020-10-21CA1500407_005_005-202010211339ND
2020-11-19CA1500407_005_005-202011191234ND
2020-11-19CA1500407_006_006-202011191213ND
2021-01-26CA1500407_006_006-202101261336ND
2021-01-26CA1500407_006_006-202101261336ND
2021-01-26CA1500407_005_005-202101261344ND
2022-01-18CA1500407_005_005-202201181056ND
2022-01-18CA1500407_006_006-202201181111ND
2022-04-07CA1500407_005_005-202204071013ND
2022-04-07CA1500407_006_006-202204071005ND
2022-05-03CA1500407_006_006-202205031110ND
2022-05-03CA1500407_005_005-202205031106ND
2022-06-15CA1500407_005_005-202206151412ND
2022-06-15CA1500407_006_006-202206151416ND
2022-07-13CA1500407_006_006-202207130925ND
2022-07-13CA1500407_005_005-202207130916ND
2022-08-11CA1500407_006_006-202208110933ND
2022-08-11CA1500407_005_005-202208110938ND
2022-10-06CA1500407_006_006-202210060825ND
2022-10-06CA1500407_005_005-202210060815ND
2022-11-15CA1500407_005_005-202211151123ND
2022-11-15CA1500407_006_006-202211151132ND
2022-12-15CA1500407_005_005-202212151057ND
2022-12-15CA1500407_006_006-202212151103ND
2023-01-12CA1500407_005_005-202301121113ND
2023-01-12CA1500407_006_006-202301121110ND
2023-01-26CA1500407_005_005-202301260926ND
2023-01-26CA1500407_006_006-202301260934ND
2023-02-07CA1500407_005_005-202302071417ND
2023-02-07CA1500407_006_006-202302071432ND
2023-02-23CA1500407_007_007-202302231300ND
2023-03-13CA1500407_005_005-202303131005ND
2023-03-13CA1500407_006_006-202303130955ND
2023-04-12CA1500407_006_006-202304121344ND
2023-04-12CA1500407_005_005-202304121340ND
2023-05-18CA1500407_005_005-202305180908ND
2023-05-18CA1500407_006_006-202305180914ND
2023-06-08CA1500407_006_006-202306081135ND
2023-06-08CA1500407_005_005-202306081113ND
2023-07-12CA1500407_006_006-202307120920ND
2023-07-12CA1500407_005_005-202307120930ND
2023-08-15CA1500407_006_006-202308151420ND
2023-08-15CA1500407_005_005-202308151425ND
2023-10-10CA1500407_005_005-202310101147ND
2023-10-10CA1500407_006_006-202310101143ND
2023-11-15CA1500407_006_006-202311150915ND
2023-11-15CA1500407_005_005-202311150924ND