Know Your Environment. Protect Your Health.

2,4,5-TP (Silvex)

Swta - Main 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.

 

28

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
2020ND140ND
2021N/A00N/A
2022N/A00N/A
2023ND140ND

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
2020-04-0722080452.00ND
2020-04-0722080482.00ND
2020-04-0722080542.00ND
2020-04-0722080422.00ND
2020-04-0722080512.00ND
2020-04-0722080392.00ND
2020-04-0722080362.00ND
2020-07-2822854613.00ND
2020-07-2822854673.00ND
2020-07-2822854763.00ND
2020-07-2822854643.00ND
2020-07-2822854583.00ND
2020-07-2822854703.00ND
2020-07-2822854733.00ND
2023-05-0228960738.00ND
2023-05-0228960743.00ND
2023-05-0228960742.00ND
2023-05-0228960741.00ND
2023-05-0228960739.00ND
2023-05-0228960740.00ND
2023-06-2729166842.00ND
2023-08-0829556436.00ND
2023-08-0829556433.00ND
2023-08-0829556434.00ND
2023-08-0829556432.00ND
2023-08-0829556435.00ND
2023-08-0829556431.00ND
2023-08-0829556437.00ND