Know Your Environment. Protect Your Health.

2,4,5-TP (Silvex)

Minden 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.

 

36

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND180ND
2019N/A00N/A
2020N/A00N/A
2021ND180ND
2022N/A00N/A
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

Date Lab ID Result
2018-06-2535400742002ND
2018-06-2535400742001ND
2018-06-2535400742009ND
2018-06-2535400742008ND
2018-06-2535400742007ND
2018-06-2535400742006ND
2018-06-2535400742005ND
2018-06-2535400742004ND
2018-06-2535400742003ND
2018-06-2535400742002ND
2018-06-2535400742009ND
2018-06-2535400742008ND
2018-06-2535400742007ND
2018-06-2535400742006ND
2018-06-2535400742005ND
2018-06-2535400742004ND
2018-06-2535400742003ND
2018-06-2535400742001ND
2021-04-1335625915001ND
2021-04-1335625915002ND
2021-04-1335625915003ND
2021-04-1335625915004ND
2021-04-1335626547001ND
2021-04-1335626547002ND
2021-04-1335626547003ND
2021-04-1335626547004ND
2021-04-1335626547005ND
2021-05-2735636911008ND
2021-05-2735636911007ND
2021-05-2735636911006ND
2021-05-2735636911005ND
2021-05-2735636911004ND
2021-05-2735636911003ND
2021-05-2735636911002ND
2021-05-2735636911001ND
2021-06-1735641728002ND