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EWG's Tap Water Database — 2021 UPDATE

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2,4-D

Bertie County Regional Water

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.

 

63

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND70ND
2015ND60ND
2016ND190ND
2017ND70ND
2018ND50ND
2019ND190ND

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
2014-01-088802-010814-E12SND
2014-01-088802-010814-E11SND
2014-01-138802-011314-E10SND
2014-05-128802-051214-E14SND
2014-05-198802-051914-E12SND
2014-05-228802-052214-E10SND
2014-05-228802-052214-E11SND
2015-01-21ND
2015-02-11ND
2015-02-11ND
2015-04-14ND
2015-04-22ND
2015-05-07ND
2016-01-118802-011116-E02SND
2016-01-118802-011116-E01SND
2016-01-208802-012016-E7ASND
2016-01-208802-012016-E04SND
2016-01-258802-012516-E06SND
2016-04-068802-040616-E02SND
2016-04-068802-040616-E01SND
2016-04-118802-041116-E14SND
2016-04-118802-041116-E09SND
2016-04-118802-041116-E08SND
2016-04-188802-041816-E06SND
2016-04-188802-041816-E7ASND
2016-04-218802-042116-E04SND
2016-07-118802-071116-E08SND
2016-07-188802-071816-E10SND
2016-07-188802-071816-E11SND
2016-08-158802-081516-E09SND
2016-10-178802-101716-E10SND
2016-10-248802-102416-E11SND
2017-01-198802-011917-E12SND
2017-01-238802-012317-E10SND
2017-01-238802-012317-E11SND
2017-04-178802-041717-E12SND
2017-04-178802-041717-E14SND
2017-04-198802-041917-E10SND
2017-04-198802-041917-E11SND
2018-02-138802-021318-E3BSND
2018-02-138802-021318-E13SND
2018-04-048802-040418-E3BSND
2018-04-098802-040918-E14SND
2018-05-088802-050818-E13SND
2019-01-088802-010819-E01SND
2019-01-088802-010819-E02SND
2019-01-148802-011419-E06SND
2019-01-148802-011419-E7ASND
2019-01-238802-012319-E04SND
2019-04-168802-041619-E14SND
2019-05-068802-050619-E08SND
2019-05-068802-050619-E09SND
2019-05-208802-052019-E06SND
2019-05-208802-052019-E7ASND
2019-05-218802-052119-E04SND
2019-05-238802-052319-E01SND
2019-05-238802-052319-E02SND
2019-07-088802-070819-E11SND
2019-07-158802-071519-E10SND
2019-08-068802-080619-E09SND
2019-08-068802-080619-E08SND
2019-10-148802-101419-E11SND
2019-10-148802-101419-E10SND