Know Your Environment. Protect Your Health.

2,4,5-TP (Silvex)

City of Joaquin

NOTE: City of Joaquin purchases water from Logansport Water System which is required to test for 2,4,5-tp (silvex). Sample information shown below was taken by Logansport 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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND40ND
2020ND20ND
2021ND10ND
2022ND20ND
2023ND20ND

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: City of Joaquin purchases water from Logansport Water System which is required to test for 2,4,5-tp (silvex). Sample information shown below was taken by Logansport Water System.

Date Lab ID Result
2018-01-2335370034001ND
2018-01-2335370034001ND
2018-08-0635409596001ND
2018-08-0635409596001ND
2019-03-1335454724001ND
2019-03-1335454724001ND
2019-07-3135486401001ND
2019-07-3135486401001ND
2020-02-0335528230001ND
2020-09-2235579690001ND
2021-01-1335604986001ND
2021-08-1735657244003ND
2022-02-2235699238002ND
2022-08-2235742155003ND
2023-02-0735778295006ND
2023-08-2135823290001ND