Know Your Environment. Protect Your Health.

Beryllium

North Castle Water District #5

NOTE: North Castle Water District #5 purchases water from North Castle Water District #4 which is required to test for beryllium. Sample information shown below was taken by North Castle Water District #4.

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.

 

28

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND20ND
2021ND20ND
2022ND20ND
2023ND30ND

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

NOTE: North Castle Water District #5 purchases water from North Castle Water District #4 which is required to test for beryllium. Sample information shown below was taken by North Castle Water District #4.

Date Lab ID Result
2018-07-24AU15718-INPND
2018-07-24AU15716-INPND
2019-08-05AV16474-INPND
2019-08-05AV16471-INPND
2020-02-25AW03861-INPND
2020-02-25AW03855-INPND
2020-02-25AW03853-INPND
2020-07-13AW13180-INPND
2020-07-29AW14499-INPND
2020-08-27AW16635-INPND
2021-03-02AX04052-INPND
2021-03-03AX04224-INPND
2021-03-03AX04226-INPND
2021-07-06AX13097-INPND
2021-08-03AX15569-INPND
2021-08-03AX15556-INPND
2022-03-01AY03618-INPND
2022-03-01AY03622-INPND
2022-03-01AY03616-INPND
2022-07-19AY12490-INPND
2022-07-20AY12624-INPND
2022-07-21AY12753-INPND
2023-03-21AZ05017-INPND
2023-03-21AZ05015-INPND
2023-03-22AZ05102-INPND
2023-07-10AZ12341-INPND
2023-07-10AZ12342-INPND
2023-07-25AZ13469-INPND