Know Your Environment. Protect Your Health.

Beryllium

Tud - Tuolumne 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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND20ND
2021ND20ND
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
2018-08-22CA5510003_003_003-201808220824ND
2018-08-22CA5510003_002_002-201808220810ND
2019-08-13CA5510003_002_002-201908131105ND
2019-08-13CA5510003_003_003-201908131135ND
2020-08-13CA5510003_003_003-202008130925ND
2020-08-13CA5510003_002_002-202008130940ND
2021-08-23CA5510003_002_002-202108231405ND
2021-08-23CA5510003_003_003-202108231350ND
2022-08-10CA5510003_002_002-202208100755ND
2022-08-10CA5510003_003_003-202208100745ND
2023-08-03CA5510003_003_003-202308030905ND
2023-08-03CA5510003_002_002-202308030855ND