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EWG's Tap Water Database — 2019 UPDATE

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2,4,5-TP (Silvex)

Town of Princess Anne

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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013N/A00N/A
2014N/A00N/A
2015ND10ND
2016ND50ND
2017N/A00N/A

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
2012-09-110190002_07_00126ND
2012-09-110190002_08_00126ND
2015-09-22E16001238001ND
2016-03-30E16003648002ND
2016-03-30E16003648004ND
2016-08-05E17000501002ND
2016-08-05E17000501005ND
2016-10-19E17001766001ND