Know Your Environment. Protect Your Health.

Mercury (inorganic)

Sugar Mountain Utility

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.

 

20

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
2019ND10ND
2020N/A00N/A
2021N/A00N/A
2022ND180ND
2023ND10ND

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
2019-10-157041-101519-OOXIND
2022-03-157041-031522-OOWIND
2022-05-187041-051822-OOFIND
2022-05-187041-051822-OPQIND
2022-05-187041-051822-OOTIND
2022-05-187041-051822-OOSIND
2022-05-187041-051822-OORIND
2022-05-187041-051822-OONIND
2022-05-187041-051822-OOIIND
2022-05-187041-051822-OOEIND
2022-05-187041-051822-OODIND
2022-05-187041-051822-OOCIND
2022-05-187041-051822-OOBIND
2022-05-187041-051822-OOAIND
2022-05-187041-051822-OLMIND
2022-05-187041-051822-OJKIND
2022-05-187041-051822-OGHIND
2022-11-017041-110122-OOVIND
2022-11-217041-112122-OOXIND
2023-08-30752-11122-1ND