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EWG's Tap Water Database — 2021 UPDATE

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2,4,5-TP (Silvex)

Bermuda Water Company Inc

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

 

38

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015N/A00N/A
2016ND210ND
2017N/A00N/A
2018N/A00N/A
2019ND150ND

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
2014-02-12550-19544-1SND
2014-05-19550-24897-1SND
2016-03-14550-60303-2SND
2016-03-14550-60303-1SND
2016-05-23550-63814-1SND
2016-05-23550-63814-2SND
2016-05-23550-63814-3SND
2016-05-23550-63814-4SND
2016-05-23550-63814-5SND
2016-05-24550-63893-3SND
2016-05-24550-63893-2SND
2016-05-24550-63893-1SND
2016-05-31550-64146-1SND
2016-08-29550-68746-4ND
2016-08-29550-68746-3ND
2016-08-29550-68746-2ND
2016-08-29550-68746-1ND
2016-09-19550-69948-4ND
2016-09-19550-69948-5TND
2016-09-19550-69948-3ND
2016-09-19550-69948-2ND
2016-09-19550-69948-1ND
2016-10-10550-70906-1ND
2019-05-134296717ND
2019-05-134296713ND
2019-05-134296709ND
2019-05-144297090ND
2019-05-144297094ND
2019-05-214304850ND
2019-08-264401557ND
2019-08-264401556ND
2019-08-264401555ND
2019-08-284404942ND
2019-08-284404940ND
2019-08-284404938ND
2019-09-044410936ND
2019-09-234434019ND
2019-09-234434021ND