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EWG's Tap Water Database — 2021 UPDATE

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2,4,5-TP (Silvex)

City of Cleburne

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.

MORE ABOUT THIS CONTAMINANT

 

26

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND60ND
2016ND60ND
2017ND40ND
2018ND30ND
2019ND30ND

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
2014-07-23Q1430514023ND
2014-07-23Q1430514022ND
2014-07-23Q1430514021ND
2014-11-19Q1456782003ND
2015-01-28Q1503313001ND
2015-01-28Q1503313017ND
2015-01-28Q1503313042ND
2015-04-22Q1515060003ND
2015-04-22Q1515060002ND
2015-04-22Q1515060001ND
2016-01-19Q1602147010ND
2016-04-11Q1614379008ND
2016-04-11Q1614379009ND
2016-11-14Q1649063017ND
2016-11-14Q1649063016ND
2016-11-14Q1649063015ND
2017-05-24Q1721423005ND
2017-10-11Q1752040022ND
2017-10-11Q1752040011ND
2017-10-11Q1752040021ND
2018-04-10Q1814945005ND
2018-04-10Q1814945016ND
2018-04-10Q1814945004ND
2019-01-29Q1904159027ND
2019-01-29Q1904159028ND
2019-01-29Q1904159007ND