Know Your Environment. Protect Your Health.

Arsenic

Highfield

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
2020ND10ND
2021N/A00N/A
2022ND50ND
2023ND40ND

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
2018-03-231803160_01ND
2018-03-231803160_01_AND
2018-03-231803160_01_BND
2019-05-141905078_01ND
2019-05-141905078_02ND
2019-05-141905078_03ND
2020-03-18E20003203002ND
2022-06-022206021_01ND
2022-06-022206021_02ND
2022-06-022206021_03ND
2022-10-05E2300078002ND
2022-10-05E2300078003ND
2023-05-102305068-01ND
2023-05-102305068-02ND
2023-05-102305068-03ND
2023-07-05E2300344501ND