Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

2,4,5-TP (Silvex)

City of San Diego

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.

 

59

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND90ND
2013ND120ND
2014ND90ND
2015ND90ND
2016ND110ND
2017ND90ND

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
2012-02-019437-001-0000ND
2012-02-019437-010-0000ND
2012-02-019437-006-0000ND
2012-05-029437-001-0000ND
2012-05-029437-010-0000ND
2012-05-029437-006-0000ND
2012-08-019437-001-0000ND
2012-08-019437-010-0000ND
2012-08-019437-006-0000ND
2013-02-069437-001-0000ND
2013-02-069437-010-0000ND
2013-02-069437-006-0000ND
2013-05-019437-006-0000ND
2013-05-019437-001-0000ND
2013-05-019437-010-0000ND
2013-08-139437-006-0000ND
2013-08-139437-001-0000ND
2013-08-139437-010-0000ND
2013-11-069437-006-0000ND
2013-11-069437-001-0000ND
2013-11-069437-010-0000ND
2014-05-079437-006-0000ND
2014-05-079437-001-0000ND
2014-05-079437-010-0000ND
2014-08-069437-006-0000ND
2014-08-069437-001-0000ND
2014-08-069437-010-0000ND
2014-11-059437-010-0000ND
2014-11-059437-006-0000ND
2014-11-059437-001-0000ND
2015-05-069437-001-0000ND
2015-05-069437-010-0000ND
2015-05-069437-006-0000ND
2015-08-059437-001-0000ND
2015-08-059437-010-0000ND
2015-08-059437-006-0000ND
2015-11-189437-001-0000ND
2015-11-189437-010-0000ND
2015-11-189437-006-0000ND
2016-02-089437-001-0000ND
2016-02-089437-010-0000ND
2016-02-089437-006-0000ND
2016-05-049437-010-0000ND
2016-05-049437-001-0000ND
2016-08-039437-006-0000ND
2016-08-039437-001-0000ND
2016-08-039437-010-0000ND
2016-11-029437-006-0000ND
2016-11-029437-001-0000ND
2016-11-029437-010-0000ND
2017-02-019437-006-0000ND
2017-02-019437-001-0000ND
2017-02-019437-010-0000ND
2017-05-039437-001-0000ND
2017-05-039437-006-0000ND
2017-05-039437-010-0000ND
2017-11-019437-010-0000ND
2017-11-019437-001-0000ND
2017-11-019437-006-0000ND