Know Your Environment. Protect Your Health.

2,4,5-TP (Silvex)

Newberry System

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.

 

24

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
2020ND120ND
2021N/A00N/A
2022N/A00N/A
2023ND120ND

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
2020-04-2322184193.00ND
2020-04-2322184157.00ND
2020-04-3022184219.00ND
2020-05-1922383220.00ND
2020-05-1922383184.00ND
2020-05-1922383256.00ND
2020-08-1322969988.00ND
2020-08-1322969947.00ND
2020-08-2722970410.00ND
2020-08-2722970336.00ND
2020-08-2722970374.00ND
2020-08-2722970298.00ND
2023-04-0428871674.00ND
2023-04-0428871686.00ND
2023-04-0428871680.00ND
2023-04-1228872298.00ND
2023-04-1228872304.00ND
2023-04-1228872310.00ND
2023-07-1329467486.00ND
2023-07-1329467638.00ND
2023-07-1329467589.00ND
2023-07-1829467516.00ND
2023-07-1829467577.00ND
2023-07-1829467547.00ND