Know Your Environment. Protect Your Health.

Mercury (inorganic)

City of Center

Mercury is a potent neurotoxin that also damages the kidneys and other internal organs. Mercury enters drinking water from industrial pollution, mining wastes and coal-fired power plants.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 1.2 ppb

The EWG Health Guideline of 1.2 ppb for mercury (inorganic) 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 internal organs.

EPA Maximum Contaminant
Level (MCL): 2 ppb

The legal limit for inorganic mercury, established in 1991, was based on toxicity studies conducted in laboratory animals in the 1970s and 1980s. This limit does not include any additional consideration of children’s health.

ppb = parts per billion

All test results

Date Lab ID Result
2018-04-30Q1817448001ND
2018-05-03Q1818013002ND
2019-05-15Q1925671006ND
2019-05-15Q1925671007ND
2020-03-10Q2009082005ND
2020-03-10Q2009082006ND
2021-03-15Q2106633002ND
2021-09-02Q2123959002ND
2022-03-08Q2207771002ND
2022-03-08Q2207771006ND
2023-02-08Q2304971005ND
2023-07-20Q2328770004ND