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EWG's Tap Water Database — 2019 UPDATE

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2,4,5-TP (Silvex)

City of North Platte

2(2,4,5-trichlorophenoxy) propionic acid (2,4,5-TP or Silvex) is a cancer-causing herbicide banned in the U.S. in 1985 because of its toxicity. It is still detected as a groundwater contaminant in areas where it was sprayed or stored.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013ND20ND
2014ND20ND
2015ND80ND
2016N/A00N/A
2017ND20ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 3 ppb

The EWG Health Guideline of 3 ppb for 2,4,5-TP 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) 50 ppb

ppb = parts per billion

All test results

Date Lab ID Result
2012-06-13166735ND
2012-07-23186754ND
2013-02-27218686ND
2013-05-01230607ND
2014-02-12278803ND
2014-05-19295517ND
2015-02-24343556ND
2015-02-24343557ND
2015-04-22354044ND
2015-05-20357775ND
2015-05-20357776ND
2015-07-08375068ND
2015-10-05375842ND
2015-10-28375841ND
2017-01-30ND
2017-04-17ND