Know Your Environment. Protect Your Health.

Beryllium

Connecticut Water Company - Northern Region-Western 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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND10ND
2020ND20ND
2021ND10ND
2022ND50ND
2023ND50ND

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
2018-01-23BZ78887IOC1ND
2018-03-02BZ97488IOC1ND
2018-07-12CA89150ND
2018-07-13CA89903ND
2019-01-15IOC1 200518779ND
2020-01-09IOC1 200562368ND
2020-09-21IOC1 200591023ND
2021-02-17IOC1 200607102ND
2022-01-24CK22294ND
2022-01-25CK23176ND
2022-02-01CK27430ND
2022-02-16CK69357ND
2022-09-08CM25672ND
2023-01-11CN20957ND
2023-01-18CN25096ND
2023-08-23CO81672ND
2023-10-31CP38331ND
2023-12-13CP67269ND