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EWG's Tap Water Database — 2019 UPDATE

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2,4,5-TP (Silvex)

Charlotte Water

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.

 

48

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND100ND
2013ND80ND
2014N/A00N/A
2015ND150ND
2016N/A00N/A
2017ND150ND

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
2012-02-092589816ND
2012-02-092589822ND
2012-02-092589828ND
2012-02-092589834ND
2012-02-092589810ND
2012-08-072689112ND
2012-08-072689118ND
2012-08-072689124ND
2012-08-072689130ND
2012-08-072689136ND
2013-03-27201303290113ND
2013-03-27201303290111ND
2013-03-27201303290112ND
2013-06-25201306260245ND
2013-06-25201306260261ND
2013-06-25201306260199ND
2013-09-04201309050362ND
2013-09-04201309060280ND
2015-06-25ND
2015-06-25ND
2015-06-25ND
2015-06-25ND
2015-06-25ND
2015-08-17ND
2015-08-17ND
2015-08-17ND
2015-08-17ND
2015-08-17ND
2015-11-17ND
2015-11-17ND
2015-11-17ND
2015-11-17ND
2015-11-17ND
2017-02-0992329527001SOCND
2017-02-0992329527005SOCND
2017-02-0992329527004SOCND
2017-02-0992329527003SOCND
2017-02-0992329527002SOCND
2017-05-1092340277005SOCND
2017-05-1092340277004SOCND
2017-05-1092340277003SOCND
2017-05-1092340277002SOCND
2017-05-1092340277001SOCND
2017-07-0592346756001SOCND
2017-07-0592346756002SOCND
2017-07-0592346756003SOCND
2017-07-0592346756004SOCND
2017-07-0592346756005SOCND