Know Your Environment. Protect Your Health.

Arsenic

Sharon Water & Sewer Commission

Arsenic is a potent carcinogen and common contaminant in drinking water. Arsenic causes thousands of cases of cancer each year in the U.S. Click here to read more about arsenic.

 

18

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
2020ND30ND
2021ND30ND
2022ND30ND
20230.900 ppb330.900 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.004 ppb

The EWG Health Guideline of 0.004 ppb for arsenic 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 cancer.

EPA Maximum Contaminant
Level (MCL): 10 ppb

The legal limit for arsenic, established in 2001, was based on costs for arsenic removal, as calculated at the time that the standard was set. This limit does not fully protect against the risk of cancer due to arsenic exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2018-12-20CC18174ND
2018-12-20CC18175ND
2018-12-20CC18173ND
2019-12-18CE90115ND
2019-12-18CE90117ND
2019-12-18CE90116ND
2020-12-16CH33643ND
2020-12-16CH33645ND
2020-12-16CH33644ND
2021-12-15CJ99309ND
2021-12-15CJ99310ND
2021-12-15CJ99311ND
2022-12-07CM99871ND
2022-12-07CM99873ND
2022-12-07CM99872ND
2023-12-06CP617210.900 ppb
2023-12-06CP617230.900 ppb
2023-12-06CP617220.900 ppb