2,4,5-TP (Silvex)
Status: National drinking water standard exists
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.
2015-2017:
1
states detected
8
utilities detected
238,000
people served
0
states over health guideline
0
utilities over health guideline
0
people served over health guideline
0
states over legal limit
0
utilities over legal limit
0
people served over legal limit
Health concerns for 2,4,5-TP
Cancer
Harm to the liver
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
States reporting 2,4,5-TP in drinking water
| UTILITIES WITH CONTAMINATION | |||
|---|---|---|---|
| State | Utilities | People Served | |
| Florida | 8 | 237,867 | |
Filtering technologies that reduce 2,4,5-TP
Activated Carbon
Reverse Osmosis
Utilities with the highest amounts of 2,4,5-TP, 2015-2017
| Utility | Location | Tests | Average level | People served |
|---|---|---|---|---|
| Frostproof, City of | Frostproof, FL | 2 of 6 | 0.107 ppb | 3,550 |
| City of Fort Meade | Fort Meade, FL | 1 of 2 | 0.1000 ppb | 5,455 |
| Mulberry, City of | Mulberry, FL | 2 of 5 | 0.0640 ppb | 3,780 |
| Toho Water Authority - Poinciana System | Kissimmee, FL | 1 of 3 | 0.0533 ppb | 69,447 |
| Fern Crest Utilities Inc. | Ft Lauderdale, FL | 1 of 3 | 0.0533 ppb | 4,643 |
| South Broward Utility/sunrise | Fort Lauderdale, FL | 1 of 3 | 0.0533 ppb | 9,457 |
| City of Port St. Joe | Port St. Joe, FL | 1 of 3 | 0.0333 ppb | 12,806 |
| Miramar (East & West) Plants | Miramar, FL | 1 of 6 | 0.0267 ppb | 128,729 |
| Utility | Location | Tests | Average level | People served |
|---|---|---|---|---|
| Toho Water Authority - Poinciana System | Kissimmee, FL | 1 of 3 | 0.0533 ppb | 69,447 |
| City of Port St. Joe | Port St. Joe, FL | 1 of 3 | 0.0333 ppb | 12,806 |
| Miramar (East & West) Plants | Miramar, FL | 1 of 6 | 0.0267 ppb | 128,729 |