Know Your Environment. Protect Your Health.

2,4,5-TP (Silvex)

Warminster Municipal Authority

NOTE: Warminster Municipal Authority purchases water from North Wales Water Authority which is required to test for 2,4,5-tp (silvex). Sample information shown below was taken by North Wales Water Authority.

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.

 

35

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
2020ND110ND
2021N/A00N/A
2022ND10ND
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: Warminster Municipal Authority purchases water from North Wales Water Authority which is required to test for 2,4,5-tp (silvex). Sample information shown below was taken by North Wales Water Authority.

Date Lab ID Result
2020-04-0122025495.00ND
2020-04-2022026160.00ND
2020-04-2022026190.00ND
2020-04-2022026130.00ND
2020-04-2022026100.00ND
2020-04-2722217321.00ND
2020-04-2722217381.00ND
2020-04-2722217418.00ND
2020-04-2722217291.00ND
2020-04-2722217351.00ND
2020-07-0622609718.00ND
2020-07-2722801128.00ND
2020-07-2722801159.00ND
2020-07-2722801178.00ND
2020-07-2722801098.00ND
2020-07-2722801219.00ND
2020-08-3123001492.00ND
2020-08-3123001464.00ND
2020-08-3123001436.00ND
2020-08-3123001520.00ND
2022-07-0527039498.00ND
2023-04-0328705020.00ND
2023-04-0328705016.00ND
2023-04-0328705019.00ND
2023-04-0328705018.00ND
2023-04-0328705017.00ND
2023-04-0428705015.00ND
2023-06-2729110718.00ND
2023-07-1029304405.00ND
2023-07-1029304404.00ND
2023-07-1029304402.00ND
2023-07-1029304401.00ND
2023-07-1129304406.00ND
2023-07-1129304403.00ND
2023-07-1129304407.00ND