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EWG's Tap Water Database — 2019 UPDATE

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2,4,5-TP (Silvex)

Village of Surfside Beach

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND60ND
2013ND20ND
2014ND20ND
2015ND30ND
2016ND10ND
2017ND10ND

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
2012-01-24AB78719ND
2012-01-24AB78718ND
2012-01-24AB78716ND
2012-01-24AB78720ND
2012-01-24AB78715ND
2012-11-14AC05205ND
2013-03-12AC13149ND
2013-03-12AC13148ND
2014-01-13AC38625ND
2014-05-14AC54188ND
2015-02-04AC79312ND
2015-02-04AC79314ND
2015-02-04AC79311ND
2016-01-12AD17662ND
2017-02-23AD71863ND