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EWG's Tap Water Database — 2021 UPDATE

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2,4,5-T

Siloam Springs Waterworks

2,4,5-Trichlorophenoxyacetic acid (2,4,5-T) is a herbicide banned in the U.S. since 1985. It was formerly used on residential and commercial lawns, and occasionally on food crops. 2,4,5-T contained the impurity dioxin, which is highly toxic to people and wildlife.

 

7

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014N/A00N/A
2015ND20ND
2016N/A00N/A
2017N/A00N/A
2018ND40ND
2019ND10ND

ppb = parts per billion

All test results

Date Lab ID Result
2015-03-0215063004302ND
2015-04-0815099001302ND
2018-02-0818040002402ND
2018-05-1518137013202ND
2018-07-3118213009001ND
2018-10-3018305005901ND
2019-01-0919010016501ND