Alpha-hexachlorocyclohexane
Tarrytown Water Supply
NOTE: Tarrytown Water Supply purchases water from New York City System which is required to test for alpha-hexachlorocyclohexane. Sample information shown below was taken by New York City System.
Alpha-HCH is a byproduct of the production of the insecticide lindane, which is no longer used in the U.S. The International Agency for Research on Cancer has classified all forms of this chemical as possibly carcinogenic to humans.
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 | N/A | 0 | 0 | N/A |
2017 | N/A | 0 | 0 | N/A |
2018 | ND | 1 | 0 | ND |
2019 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
NOTE: Tarrytown Water Supply purchases water from New York City System which is required to test for alpha-hexachlorocyclohexane. Sample information shown below was taken by New York City System.
Date | Lab ID | Result |
---|---|---|
2018-06-19 | 201806200370 | ND |
2018-06-19 | 201806200371 | ND |
2018-08-07 | 201808090003 | ND |
2018-08-21 | 201808230004 | ND |
2018-08-23 | 201808240653 | ND |
2018-08-23 | 201808240654 | ND |
2018-11-07 | 201811090451 | ND |
2018-11-07 | 201811090452 | ND |
2018-11-07 | 201811090453 | ND |
2018-11-07 | 201811090454 | ND |
2019-02-05 | 201902060424 | ND |
2019-02-05 | 201902060425 | ND |
2019-02-05 | 201902060426 | ND |
2019-02-05 | 201902060427 | ND |