Hexachlorocyclopentadiene
Yonkers City
Hexachlorocyclopentadiene was historically used for the manufacture of currently banned pesticides, such as endrin, dieldrin and chlordane. It’s still used for production of flame retardants, resins and plastics.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | N/A | 0 | 0 | N/A |
2015 | N/A | 0 | 0 | N/A |
2016 | ND | 3 | 0 | ND |
2017 | ND | 3 | 0 | ND |
2018 | 0.0375 ppb | 4 | 1 | ND - 0.150 ppb |
2019 | ND | 3 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 2 ppb
The EWG Health Guideline of 2 ppb for hexachlorocyclopentadiene 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 stomach and intestines.
EPA Maximum Contaminant
Level (MCL) 50 ppb
The legal limit for hexachlorocyclopentadiene, established in 1992, was based on a toxicity study in laboratory animals conducted in the 1980s.
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2016-09-06 | AS19152 SOC YONK | ND |
2016-09-06 | AS19150 SOC YONK | ND |
2016-09-06 | AS19147 SOC YONK | ND |
2017-11-13 | AT23823SOC YONKE | ND |
2017-11-13 | AT23822 SOC YONK | ND |
2017-11-13 | AT23824SOC YONKE | ND |
2018-09-24 | AU20758YONK SOCS | 0.150 ppb |
2018-09-24 | AU20757YONK SOCS | ND |
2018-09-24 | AU20760YONK SOCS | ND |
2018-12-03 | AU25856YONK SOCS | ND |
2019-11-12 | AV23850C SOCS | ND |
2019-11-12 | AV23849C SOCS | ND |
2019-11-13 | AV23866C SOCS | ND |