Know Your Environment. Protect Your Health.

2,4,5-TP (Silvex)

Bethany Special Utility District

NOTE: Bethany Special Utility District purchases water from Johnson County SUD which is required to test for 2,4,5-tp (silvex). Sample information shown below was taken by Johnson County SUD.

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.

 

19

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
2020ND50ND
2021N/A00N/A
2022N/A00N/A
2023ND40ND

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: Bethany Special Utility District purchases water from Johnson County SUD which is required to test for 2,4,5-tp (silvex). Sample information shown below was taken by Johnson County SUD.

Date Lab ID Result
2020-01-28Q2003074013ND
2020-01-28Q2003074014ND
2020-01-28Q2003074015ND
2020-01-28Q2003074012ND
2020-05-05Q2017189008ND
2020-06-17Q2024616013ND
2020-06-17Q2024616014ND
2020-10-07Q2039319017ND
2020-10-07Q2039319016ND
2020-10-07Q2039319002ND
2023-04-06Q2312829007ND
2023-10-26Q2346224003ND
2023-10-26Q2346224015ND
2023-10-26Q2346224016ND
2023-10-26Q2346224017ND
2023-10-26Q2346224028ND
2023-10-26Q2346224029ND
2023-10-26Q2346224052ND
2023-11-21Q2350132006ND