Know Your Environment. Protect Your Health.

Mercury (inorganic)

Barton Dade Cedar & Jasper Counties Consolidated Public Water Supply District 1

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.

 

19

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
2019ND90ND
2020N/A00N/A
2021N/A00N/A
2022ND100ND
2023N/A00N/A

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
2019-05-20AD47546ND
2019-05-20AD47547ND
2019-05-20AD47548ND
2019-05-20AD47549ND
2019-05-20AD47550ND
2019-05-20AD47551ND
2019-05-20AD47552ND
2019-05-20AD47553ND
2019-05-20AD47545ND
2022-05-172211795ND
2022-05-172211802ND
2022-05-172211801ND
2022-05-172211800ND
2022-05-172211803ND
2022-05-172211799ND
2022-05-172211798ND
2022-05-172211797ND
2022-05-172211796ND
2022-11-112219082ND