Know Your Environment. Protect Your Health.

Cyanide

Sugar Mountain Utility

Cyanide is a toxic chemical that causes central nervous system and thyroid toxicity. Water contamination is generally the result of metal mining and chemical industry waste, runoff from agriculture and road salts used for melting ice.

 

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: 150 ppb

The EWG Health Guideline of 150 ppb for cyanide 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 the brain and nervous system.

EPA Maximum Contaminant
Level (MCL): 200 ppb

The legal limit for cyanide, established in 1992, was based on a 1955 toxicity study conducted in laboratory animals. 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