Know Your Environment. Protect Your Health.

2,4,5-TP (Silvex)

The Village of Bald Head Island

NOTE: The Village of Bald Head Island purchases water from Brunswick County Water System which is required to test for 2,4,5-tp (silvex). Sample information shown below was taken by Brunswick County Water 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.

 

5

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
2020ND30ND
2021ND20ND
2022ND10ND
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

NOTE: The Village of Bald Head Island purchases water from Brunswick County Water System which is required to test for 2,4,5-tp (silvex). Sample information shown below was taken by Brunswick County Water System.

Date Lab ID Result
2020-01-277719-012720-E02SND
2020-09-1037729_20-39322ND
2020-10-267719-102620-E02SND
2021-03-0837729_21-09557ND
2021-06-0337729_21-22394ND