2,4-D
Amawalk-shenorock Water District
2,4-D (2,4-dichlorophenoxyacetic acid) is a herbicide that can be applied directly to GMO corn and soy plants engineered to withstand this toxic chemical. Americans' exposures to 2,4-D from food and drinking water will likely increase in years to come as farmers plant more of these GMO crops. Read More.
2,4-D is an endocrine disruptor that interferes with thyroid hormones. The International Agency for Research on Cancer classifies 2,4-D as possibly carcinogenic to humans. In occupational studies, farmers exposed to 2,4-D tended to have higher incidences of damaged and malformed sperm. Laboratory animals exposed to 2,4-D during gestation are born underdeveloped and are more likely to have birth defects.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 4 | 0 | ND |
2015 | N/A | 0 | 0 | N/A |
2016 | ND | 4 | 0 | ND |
2017 | ND | 4 | 0 | ND |
2018 | ND | 4 | 0 | ND |
2019 | ND | 4 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 20 ppb
The EWG Health Guideline of 20 ppb for 2,4-D 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 internal organs.
EPA Maximum Contaminant
Level (MCL) 70 ppb
The legal limit for 2,4-D, established in 1991, was based on toxicity studies in laboratory animals conducted in the 1980s. This limit may not fully protect against harm to the nervous system, harm to the thyroid, and hormone disruption.
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2014-03-10 | 35129491001 SOC | ND |
2014-03-10 | 35129491002 SOC | ND |
2014-03-10 | 35129491004 SOC | ND |
2014-03-10 | 35129491003 SOC | ND |
2016-03-09 | 35233772001 SOC | ND |
2016-03-09 | 35233772004 SOC | ND |
2016-03-09 | 35233772003 SOC | ND |
2016-03-09 | 35233772002 SOC | ND |
2017-02-28 | 35298645003-SOCS | ND |
2017-02-28 | 35298645004-SOCS | ND |
2017-02-28 | 35298645001-SOCS | ND |
2017-02-28 | 35298645002-SOCS | ND |
2018-02-12 | 420-1328041 ME1 | ND |
2018-02-12 | 420-1328041 SG1 | ND |
2018-02-12 | 420-1328041 SG3 | ND |
2018-02-12 | 420-1328041 SG4 | ND |
2019-02-27 | 7081061002 SOCS | ND |
2019-02-27 | 7081061003 SOCS | ND |
2019-02-27 | 7081061004 SOCS | ND |
2019-02-27 | 7081061001 SOCS | ND |