Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

2,4,5-TP (Silvex)

Indiana American Water - Richmond

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
2012ND60ND
2013N/A00N/A
2014N/A00N/A
2015ND60ND
2016N/A00N/A
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
2012-04-16167627RS28-1202ND
2012-04-16167625RS28--1202ND
2012-04-16167623RS28-1202ND
2012-07-16167628RS28-1203ND
2012-07-16167626RS28-1203ND
2012-07-16167624RS28-1203ND
2015-04-0728647101RS28-150ND
2015-04-0728646701RS28-150ND
2015-04-0728646201RS28-150ND
2015-07-1539499201RS28-150ND
2015-07-1529499501RS28-150ND
2015-07-21294999RV-1503ND