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EWG's Tap Water Database — 2019 UPDATE

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2,4,5-TP (Silvex)

Springfield

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.

 

12

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
2015ND20ND
2016ND20ND
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
2012-05-29AB71308ND
2012-05-29AB71309ND
2013-06-04AB97178ND
2013-06-04AB97179ND
2014-06-02AC23733ND
2014-06-02AC23734ND
2015-06-02AC47103ND
2015-06-02AC47104ND
2016-05-31AC72604ND
2016-05-31AC72602ND
2017-06-13AC96316ND
2017-06-13AC96315ND