Know Your Environment. Protect Your Health.

Mercury (inorganic)

Adams County W/a #2-south

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.

 

23

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
2019N/A00N/A
2020ND100ND
2021N/A00N/A
2022ND60ND
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
2018-09-10180911-024INND
2018-09-10180911-025INND
2018-09-10180911-026INND
2018-09-10180911-027INND
2018-09-17180918-002INND
2020-03-30200331-033INND
2020-03-30200331-036INND
2020-03-30200331-035INND
2020-03-30200331-034INND
2020-03-30200331-032INND
2020-04-06IN-200407-024ND
2020-04-06IN-200407-023ND
2020-04-06IN-200407-022ND
2020-04-06IN-200407-021ND
2020-04-06IN-200407-020ND
2022-05-03IN-220504-005ND
2022-05-03IN-220504-006ND
2022-05-03IN-220504-007ND
2022-05-03IN-220504-008ND
2022-05-03IN-220504-009ND
2022-11-30IN-221201-025ND
2023-02-21IN-230222-004ND
2023-05-15IN-230516-023ND