Know Your Environment. Protect Your Health.

Cyanide

Minden Water System

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.

 

27

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND180ND
2019N/A00N/A
2020N/A00N/A
2021ND90ND
2022N/A00N/A
2023N/A00N/A

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
2018-06-2535400742002ND
2018-06-2535400742009ND
2018-06-2535400742008ND
2018-06-2535400742007ND
2018-06-2535400742006ND
2018-06-2535400742005ND
2018-06-2535400742004ND
2018-06-2535400742003ND
2018-06-2535400742002ND
2018-06-2535400742009ND
2018-06-2535400742008ND
2018-06-2535400742007ND
2018-06-2535400742006ND
2018-06-2535400742005ND
2018-06-2535400742004ND
2018-06-2535400742003ND
2018-06-2535400742001ND
2018-06-2535400742001ND
2021-04-13B2101674-009ND
2021-04-13B2101674-008ND
2021-04-13B2101674-007ND
2021-04-13B2101674-006ND
2021-04-13B2101674-005ND
2021-04-13B2101674-004ND
2021-04-13B2101674-003ND
2021-04-13B2101674-002ND
2021-04-13B2101674-001ND