Know Your Environment. Protect Your Health.

2,4,5-TP (Silvex)

Marianna Waterworks

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020ND50ND
2021ND30ND
2022ND10ND
2023ND20ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2020-01-2720030005908ND
2020-04-2820120000302ND
2020-05-2720149009201ND
2020-09-1420261000101ND
2020-11-23202011250483ND
2021-01-18202101210655ND
2021-05-1021132004101ND
2021-08-1121224003701ND
2022-04-26O197392-MCP-1ND
2023-02-14O206500-MCP-1ND
2023-04-26O208338-MCP-1ND