Know Your Environment. Protect Your Health.

Beryllium

Lake Delton Waterworks

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.

 

14

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
2019N/A00N/A
2020ND70ND
2021N/A00N/A
2022N/A00N/A
2023ND70ND

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
2020-05-28424671ND
2020-05-28424674ND
2020-05-28424678ND
2020-05-28424680ND
2020-06-02426798ND
2020-06-02426788ND
2020-06-02426783ND
2023-03-201301273ND
2023-03-201301275ND
2023-04-171313100ND
2023-04-171313101ND
2023-04-191316617ND
2023-04-201316619ND
2023-04-201316621ND