Know Your Environment. Protect Your Health.

2,4,5-TP (Silvex)

Windmill Ranch Subdivision

NOTE: Windmill Ranch Subdivision purchases water from Clwsc Canyon Lake Shores which is required to test for 2,4,5-tp (silvex). Sample information shown below was taken by Clwsc Canyon Lake Shores.

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.

 

39

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND70ND
2020ND30ND
2021ND20ND
2022ND60ND
2023ND100ND

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: Windmill Ranch Subdivision purchases water from Clwsc Canyon Lake Shores which is required to test for 2,4,5-tp (silvex). Sample information shown below was taken by Clwsc Canyon Lake Shores.

Date Lab ID Result
2018-02-07AE12824ND
2018-05-16AE26630ND
2018-07-26AE34728ND
2018-11-06AE45470ND
2019-02-06AE53256ND
2019-02-06AE53257ND
2019-02-06AE53263ND
2019-04-23AE63411ND
2019-10-30AE88024ND
2019-10-30AE88025ND
2019-10-30AE88026ND
2020-03-17AF03352ND
2020-03-17AF03355ND
2020-03-17AF03354ND
2020-03-17AF03353ND
2020-06-16AF15653ND
2020-10-14AF30675ND
2020-10-14AF30677ND
2021-03-11AF46613ND
2021-04-21AF50967ND
2021-08-24AF67782ND
2021-08-24AF67781ND
2021-11-30AF77558ND
2022-02-07AF83476ND
2022-02-07AF83477ND
2022-04-11AF92725ND
2022-06-22AG02016ND
2022-08-23AG10611ND
2022-08-23AG10619ND
2023-02-08AG28101ND
2023-02-08AG28107ND
2023-04-12AG36615ND
2023-06-07AG43591ND
2023-06-07AG43592ND
2023-09-12AG55849ND
2023-09-28AG57981ND
2023-11-09AG63112ND
2023-11-09AG63113ND
2023-12-20AG67200ND