2,4,5-TP (Silvex)
Plainview Municipal 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.
23
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 | 10 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 9 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 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 |
|---|---|---|
| 2014-01-14 | Q1400667033 | ND |
| 2014-01-14 | Q1400667028 | ND |
| 2014-01-14 | Q1400667027 | ND |
| 2014-01-14 | Q1400667026 | ND |
| 2014-01-14 | Q1400667025 | ND |
| 2014-01-15 | Q1400995038 | ND |
| 2014-01-15 | Q1400995011 | ND |
| 2014-01-15 | Q1400995026 | ND |
| 2014-01-15 | Q1400995025 | ND |
| 2014-01-15 | Q1400995024 | ND |
| 2015-01-21 | Q1501905007 | ND |
| 2016-01-19 | Q1602114004 | ND |
| 2017-02-07 | Q1705153028 | ND |
| 2017-02-07 | Q1705153027 | ND |
| 2017-02-07 | Q1705153026 | ND |
| 2017-08-30 | Q1740337043 | ND |
| 2017-08-30 | Q1740337011 | ND |
| 2017-08-30 | Q1740337042 | ND |
| 2017-08-30 | Q1740337010 | ND |
| 2017-08-30 | Q1740337041 | ND |
| 2017-08-30 | Q1740337009 | ND |
| 2018-03-13 | Q1810167005 | ND |
| 2019-01-10 | Q1901546003 | ND |