Know Your Environment. Protect Your Health.

Cyanide

Cook Springs Water Authority

NOTE: Cook Springs Water Authority purchases water from Odenville which is required to test for cyanide. Sample information shown below was taken by Odenville.

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND60ND
2020N/A00N/A
2021ND10ND
2022ND60ND
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

NOTE: Cook Springs Water Authority purchases water from Odenville which is required to test for cyanide. Sample information shown below was taken by Odenville.

Date Lab ID Result
2018-04-02180400026-10ND
2018-04-02180400026-11ND
2019-05-131905-00211-001ND
2019-05-131905-00211-002ND
2019-05-131905-00211-003ND
2019-05-131905-00211-006ND
2019-05-131905-00211-009ND
2019-05-131905-00211-010ND
2021-05-102105-00143-009ND
2021-05-102105-00143-013ND
2022-04-052204-00058-001ND
2022-04-052204-00058-002ND
2022-04-052204-00058-003ND
2022-04-052204-00058-004ND
2022-04-052204-00058-005ND
2022-04-052204-00058-006ND