2,4,5-TP (Silvex)
Holley Village
NOTE: Holley Village purchases water from Monroe County Water Authority (MCWA) which is required to test for 2,4,5-tp (silvex). Sample information shown below was taken by Monroe County Water Authority (MCWA).
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 1 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 2 | 0 | ND |
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: Holley Village purchases water from Monroe County Water Authority (MCWA) which is required to test for 2,4,5-tp (silvex). Sample information shown below was taken by Monroe County Water Authority (MCWA).
| Date | Lab ID | Result |
|---|---|---|
| 2020-05-12 | SOC WEBSTER | ND |
| 2020-05-12 | SHOREMONT SOC | ND |
| 2021-05-11 | SOCS 2021 WEBSTER | ND |
| 2021-05-11 | SHOREMONT SOCS 2021 | ND |
| 2022-05-10 | 202205170-197 | ND |
| 2022-05-10 | 2022051-70473 | ND |
| 2023-05-09 | 380-4678(6)-5 | ND |
| 2023-05-09 | 380-(4)6786-5 | ND |