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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | ND | 11 | 0 | ND |
2015 | ND | 4 | 0 | ND |
2016 | ND | 6 | 0 | ND |
2017 | ND | 7 | 0 | ND |
2018 | ND | 4 | 0 | ND |
2019 | ND | 1 | 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 |
---|---|---|
2014-01-24 | BG03077IOC1 | ND |
2014-01-28 | BG04228IOC1 | ND |
2014-01-29 | BG04659IOC1 | ND |
2014-04-09 | 4561IOC1 | ND |
2014-05-21 | BG47680IOC1 | ND |
2014-06-05 | BG53878IOC1 | ND |
2014-06-06 | BG54002IOC1 | ND |
2014-06-17 | BG60666IOC1 | ND |
2014-06-19 | BG62968IOC1 | ND |
2014-11-21 | 141121-0002IOC1 | ND |
2014-11-21 | BH44966IOC1 | ND |
2015-01-20 | BH64902IOC1 | ND |
2015-03-06 | BH80296IOC1 | ND |
2015-03-19 | BH86047IOC1 | ND |
2015-05-26 | BJ21926IOC1 | ND |
2016-01-12 | BK51387IOC1 | ND |
2016-01-15 | BK53768IOC1 | ND |
2016-05-24 | BN39642IOC1 | ND |
2016-05-25 | BN40000IOC1 | ND |
2016-07-01 | BN66356IOC1 | ND |
2016-07-22 | BN79282IOC1 | ND |
2017-02-08 | BX57436IOC1 | ND |
2017-04-06 | BY00572IOC1 | ND |
2017-05-30 | BY30818IOC1 | ND |
2017-06-14 | BY39226IOC1 | ND |
2017-06-23 | BY45937IOC1 | ND |
2017-07-07 | BY54441IOC1 | ND |
2017-09-22 | BZ07174IOC1 | ND |
2018-01-23 | BZ78887IOC1 | ND |
2018-03-02 | BZ97488IOC1 | ND |
2018-07-12 | CA89150 | ND |
2018-07-13 | CA89903 | ND |
2019-01-15 | IOC1 200518779 | ND |