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EWG's Tap Water Database — 2021 UPDATE

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2,4,5-TP (Silvex)

Goodyear Water Department

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

 

25

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
2016ND100ND
2017N/A00N/A
2018ND40ND
2019ND110ND

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
2016-06-13201601260059SND
2016-06-13201601260058SND
2016-06-13201601260057SND
2016-06-13201601260056SND
2016-06-13201601260055SND
2016-11-09201601260080SND
2016-11-09201601260079SND
2016-11-09201601260073SND
2016-11-09201601260072SND
2016-11-09201601260071SND
2018-03-19201803200264SND
2018-05-14201805150445S SOND
2018-08-15201808170337SND
2018-12-10201812110404SND
2019-03-18201903190404SND
2019-03-18201903190400SND
2019-03-18201903190393SND
2019-03-18201903190371SND
2019-06-04201906050239SND
2019-08-29201908300151SND
2019-08-29201908300144SND
2019-08-29201908300107SND
2019-08-29201908300090SND
2019-08-29201908300081SND
2019-11-21201911220333SND