Know Your Environment. Protect Your Health.

Mercury (inorganic)

Travis Air Force Base Water Treatment Plant - Vallejo

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.

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND50ND
2020ND50ND
2021ND50ND
2022ND30ND
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
2018-09-10CA4810015_001_001-201809101227ND
2018-10-09CA4810015_003_003-201810090750ND
2019-01-07CA4810015_003_003-201901070825ND
2019-04-02CA4810015_003_003-201904020745ND
2019-07-01CA4810015_003_003-201907010805ND
2019-09-12CA4810015_001_001-201909121115ND
2019-10-08CA4810015_003_003-201910080900ND
2020-01-07CA4810015_003_003-202001070855ND
2020-04-01CA4810015_003_003-202004010820ND
2020-07-13CA4810015_003_003-202007130945ND
2020-09-14CA4810015_001_001-202009141102ND
2020-10-05CA4810015_003_003-202010050835ND
2021-01-11CA4810015_003_003-202101110850ND
2021-04-01CA4810015_003_003-202104010821ND
2021-07-07CA4810015_003_003-202107070820ND
2021-09-13CA4810015_001_001-202109131133ND
2021-10-04CA4810015_003_003-202110040805ND
2022-01-05CA4810015_003_003-202201050906ND
2022-07-06CA4810015_003_003-202207060830ND
2022-09-12CA4810015_001_001-202209121111ND
2023-01-10CA4810015_003_003-202301100815ND
2023-09-11CA4810015_001_001-202309111259ND