Know Your Environment. Protect Your Health.

Arsenic

Woodridge Village

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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.40 ppb32ND - 2.90 ppb
2019ND10ND
2020ND20ND
2021ND10ND
2022ND10ND
20230.575 ppb21ND - 1.15 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
2018-05-01PRI EHS1800018630ND
2018-09-13PRI J8I0851-011.30 ppb
2018-09-13PRI J8I0851-022.90 ppb
2019-08-08PRI J9H0844ND
2020-08-11PRI S030459ND
2020-08-12PRI S000030457ND
2021-12-22IOCS S050118ND
2022-02-07PRI S045676ND
2023-11-01IOCS EHS23000643961.15 ppb
2023-11-01IOCS EHSS2300064397ND