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EWG's Tap Water Database — 2019 UPDATE

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2,4,5-TP (Silvex)

Edina

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.

 

31

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
2013ND100ND
2014ND50ND
2015N/A00N/A
2016ND140ND
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
2012-03-2712C0954-01ND
2013-02-2713B1315-01ND
2013-05-3013E2572-01ND
2013-05-3013E2572-02ND
2013-05-3013E2572-04ND
2013-07-2513G2159-01ND
2013-07-2513G2159-02ND
2013-07-2513G2162-02ND
2013-07-2513G2163-01ND
2013-12-1213L0421-01ND
2013-12-1213L0421-02ND
2014-08-2014H1841-02ND
2014-08-2014H1844-02ND
2014-08-2014H1844-03ND
2014-11-1914K0831-02ND
2014-11-1914K0831-01ND
2016-04-113428603ND
2016-04-113428659ND
2016-04-113428675ND
2016-04-113428696ND
2016-06-203475889ND
2016-06-213475814ND
2016-06-213475841ND
2016-06-213475904ND
2016-06-213475925ND
2016-06-213478335ND
2016-07-213500707ND
2016-07-213500712ND
2016-07-213500790ND
2016-07-213500795ND
2017-07-2617G1803-01ND