Beryllium
Connecticut Water Company - Shoreline Region-chester 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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 3 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 1 | 0 | ND |
2019 | ND | 2 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
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 |
---|---|---|
2014-01-29 | 140130CWCFIOC1 | ND |
2014-08-13 | BG93531IOC1 | ND |
2014-12-04 | BH49355IOC1 | ND |
2015-02-12 | BH73176IOC1 | ND |
2016-01-27 | BK58353IOC1 | ND |
2016-05-25 | BN40398IOC1 | ND |
2017-01-18 | BX33132IOC1 | ND |
2018-03-30 | CA11471IOC1 | ND |
2019-03-11 | IOC1 200524295 | ND |
2019-06-20 | IOC1 200538206 | ND |