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EWG's Tap Water Database — 2021 UPDATE

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2,4,5-TP (Silvex)

Demopolis Water Works and Sewer Board

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

 

24

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
2016ND110ND
2017N/A00N/A
2018N/A00N/A
2019ND130ND

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
2016-02-04160204015-3ND
2016-02-04160204015-2ND
2016-02-04160204015-4ND
2016-02-04160204015-1ND
2016-05-06160506028-3ND
2016-05-06160506028-4ND
2016-05-06160506028-2ND
2016-05-06160506028-1ND
2016-08-05160805035-001ND
2016-09-16160916038-1ND
2016-11-10161110067-1ND
2019-02-0719020263-003CND
2019-02-0719020263-001CND
2019-02-0719020263-002CND
2019-02-0719020263-004CND
2019-05-2319050725-001AND
2019-08-0820116256005_ISOCND
2019-08-0820116256004_ISOCND
2019-08-0820116256003_ISOCND
2019-08-0820116256002_ISOCND
2019-08-0820116256002_ISOCND
2019-08-0820116256004_ISOCND
2019-08-0820116256003_ISOCND
2019-08-0820116256001_ISOCND