2,4,5-TP (Silvex)
Silver Bluff Nursing Home
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.
13
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | ND | 1 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
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 |
|---|---|---|
| 2014-07-30 | 37729_14-22686 | ND |
| 2015-07-15 | ND | |
| 2016-09-21 | 37729_16-33035 | ND |
| 2016-12-20 | 92324205001SOC | ND |
| 2017-03-23 | 92334627001SOC | ND |
| 2017-06-21 | 92345278001SOC | ND |
| 2017-09-25 | 92356843001SOC | ND |
| 2017-12-14 | 92367217001SOC | ND |
| 2018-03-29 | 92378988001SOC | ND |
| 2018-06-21 | 92389710001SOC | ND |
| 2018-09-19 | 92400119001SOC | ND |
| 2019-09-30 | 92447831001_1271 | ND |
| 2019-10-28 | CC18271-01 | ND |