Know Your Environment. Protect Your Health.

2,4-D

Sharon Water Supply Corporation

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND60ND
2020ND100ND
2021N/A00N/A
2022N/A00N/A
2023ND80ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2019-06-06Q1932969045ND
2019-06-06Q1932969044ND
2019-08-27Q1959747003ND
2019-08-27Q1959747013ND
2019-10-30Q1974573013ND
2019-10-30Q1974573014ND
2020-01-21Q2002254021ND
2020-01-21Q2002254022ND
2020-01-21Q2002254023ND
2020-04-08Q2014338009ND
2020-10-21Q2041036047ND
2020-10-21Q2041036050ND
2020-10-21Q2041036049ND
2020-10-21Q2041036048ND
2020-10-21Q2041036046ND
2020-10-21Q2041036015ND
2023-01-11Q2301806007ND
2023-08-15Q2334031018ND
2023-08-15Q2334031019ND
2023-08-15Q2334031020ND
2023-10-25Q2346021029ND
2023-10-25Q2346021030ND
2023-10-25Q2346021031ND
2023-10-25Q2346021032ND