Know Your Environment. Protect Your Health.

Arsenic

City of Sansom Park

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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND60ND
2020N/A00N/A
2021ND10ND
2022ND60ND
2023N/A00N/A

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
2019-05-02Q1918146004ND
2019-05-02Q1918146005ND
2019-05-02Q1918146006ND
2019-05-02Q1918146007ND
2019-05-02Q1918146008ND
2019-05-02Q1918146009ND
2021-09-14Q2124999008ND
2022-10-13Q2231074013ND
2022-10-13Q2231074014ND
2022-10-13Q2231074015ND
2022-10-13Q2231074024ND
2022-10-13Q2231074025ND
2022-10-13Q2231074026ND