Know Your Environment. Protect Your Health.

2,4,5-TP (Silvex)

Correctional Training Facility - Soledad

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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND40ND
2020N/A00N/A
2021ND20ND
2022ND10ND
2023ND30ND

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
2018-01-02CA2710850_006_006-201801020720ND
2018-04-02CA2710850_006_006-201804020900ND
2018-08-07CA2710850_005_005-201808070930ND
2019-08-06CA2710850_007_007-201908061025ND
2019-09-04CA2710850_005_005-201909040915ND
2019-11-05CA2710850_007_007-201911050815ND
2019-12-23CA2710850_005_005-201912230915ND
2021-01-05CA2710850_006_006-202101050900ND
2021-04-06CA2710850_006_006-202104061005ND
2022-08-31CA2710850_007_007-202208311000ND
2023-08-29CA2710850_005_005-202308291015ND
2023-12-27CA2710850_006_006-202312270845ND
2023-12-27CA2710850_005_005-202312270930ND