Know Your Environment. Protect Your Health.

Mercury (inorganic)

Sharon Water & Sewer Commission

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
2020ND30ND
2021ND30ND
2022ND30ND
2023ND30ND

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
2018-12-20CC18174ND
2018-12-20CC18175ND
2018-12-20CC18173ND
2019-12-18CE90115ND
2019-12-18CE90117ND
2019-12-18CE90116ND
2020-12-16CH33643ND
2020-12-16CH33645ND
2020-12-16CH33644ND
2021-12-15CJ99309ND
2021-12-15CJ99310ND
2021-12-15CJ99311ND
2022-12-07CM99871ND
2022-12-07CM99873ND
2022-12-07CM99872ND
2023-12-06CP61721ND
2023-12-06CP61723ND
2023-12-06CP61722ND