Know Your Environment. Protect Your Health.

Cyanide

Essex Fells Water Department

NOTE: Essex Fells Water Department purchases water from NJ American Water - Short Hills which is required to test for cyanide. Sample information shown below was taken by NJ American Water - Short Hills.

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.

 

62

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND80ND
2020ND120ND
2021ND30ND
2022ND10ND
2023ND80ND

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: Essex Fells Water Department purchases water from NJ American Water - Short Hills which is required to test for cyanide. Sample information shown below was taken by NJ American Water - Short Hills.

Date Lab ID Result
2018-01-1838399801ND
2018-01-2438403401ND
2018-02-0638703001ND
2018-02-0838702501ND
2018-02-2238696501ND
2018-06-0439995001ND
2018-06-1339993601ND
2018-10-0941591401ND
2018-10-0941591301ND
2018-10-0941591601ND
2018-11-0842049501ND
2019-01-3042613201ND
2019-02-1943027901ND
2019-06-0544738201ND
2019-06-1344738401ND
2019-10-2446916501ND
2019-10-2446916301ND
2019-11-2546916801ND
2019-12-0943027701ND
2020-01-1648037801ND
2020-02-1248532901ND
2020-02-1348532701ND
2020-04-0649502401ND
2020-06-1150330001ND
2020-06-2250330201ND
2020-07-2849970901ND
2020-09-1551381401ND
2020-10-1252179301ND
2020-10-1952179501ND
2020-10-2652179801ND
2020-11-1952492101ND
2021-01-1253057501ND
2021-02-0853392601ND
2021-02-1153396001ND
2021-02-2253392401ND
2021-05-0654350501ND
2021-06-0354717001ND
2021-06-2154732301ND
2021-08-1955743001ND
2021-09-2053057601ND
2021-10-1356464301ND
2021-10-1456464201ND
2021-11-0456670701ND
2022-01-2057275001ND
2022-01-2757275101ND
2022-02-1757749901ND
2022-03-1057750001ND
2022-06-0759162301ND
2022-06-1559159201ND
2022-08-2259869601ND
2022-10-1360529601ND
2022-10-1360529401ND
2022-10-2660529701ND
2022-12-1660817901ND
2023-01-1261617501ND
2023-02-1361924301ND
2023-02-1661924201ND
2023-06-0763703401ND
2023-06-1463700001ND
2023-10-0968003301ND
2023-10-1268004901ND
2023-10-1268002901ND