Know Your Environment. Protect Your Health.

Beryllium

Cazadero Water Company Inc.

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.

 

10

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
2019ND20ND
2020ND10ND
2021ND30ND
2022ND20ND
2023ND20ND

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
2019-03-22CA4900508_011_011-201903221030ND
2019-03-22CA4900508_005_005-201903221010ND
2020-12-21CA4900508_011_011-202012210725ND
2021-04-01CA4900508_001_001-202104010917ND
2021-04-01CA4900508_006_006-202104010933ND
2021-06-08CA4900508_005_005-202106080926ND
2022-03-14CA4900508_011_011-202203141039ND
2022-11-03CA4900508_005_005-202211031155ND
2023-03-06CA4900508_011_011-202303060912ND
2023-12-11CA4900508_005_005-202312111300ND