Know Your Environment. Protect Your Health.

2,4,5-TP (Silvex)

Doney Park Water

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.

 

26

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND140ND
2019N/A00N/A
2020N/A00N/A
2021ND120ND
2022N/A00N/A
2023N/A00N/A

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
2018-04-17201804180326SBND
2018-04-17201804180326SCND
2018-04-17201804180326SDND
2018-04-17201804180326SEND
2018-04-17201804180326SAND
2018-06-13201806140290SND
2018-08-01201808020177SAND
2018-08-01201808020177SBND
2018-08-01201808020177SCND
2018-08-01201808020181SAND
2018-08-01201808020181SBND
2018-08-01201808020181SCND
2018-08-28201808290304SND
2018-10-30201810310048SND
2021-02-09202102100083SAND
2021-02-09202102100083SBND
2021-02-09202102100083SCND
2021-02-09202102100083SDND
2021-02-09202102100083SEND
2021-02-25202102260001SND
2021-04-06202104070104SAND
2021-04-06202104070104SBND
2021-04-06202104070104SCND
2021-04-06202104070106SAND
2021-04-06202104070106SBND
2021-04-06202104070106SCND