2,4,5-TP (Silvex)
Citizens Water - Indianapolis
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.
54
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 | 18 | 0 | ND |
| 2016 | ND | 9 | 0 | ND |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 18 | 0 | ND |
| 2019 | ND | 8 | 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 |
|---|---|---|
| 2014-08-13 | 3082571RS28-1403 | ND |
| 2015-05-13 | 3241852RS28-1502 | ND |
| 2015-05-13 | 3241842RS28-1502 | ND |
| 2015-05-13 | 3241832RS28-1502 | ND |
| 2015-05-13 | 3241822RS28-1502 | ND |
| 2015-05-13 | 3241809RS28-1502 | ND |
| 2015-05-13 | 3241799RS28-1502 | ND |
| 2015-05-13 | 3241759RS28-1502 | ND |
| 2015-05-20 | 3246211RS28-1502 | ND |
| 2015-06-26 | 3271619RS28-1502 | ND |
| 2015-08-11 | 3298598RS28-1503 | ND |
| 2015-08-12 | 3298502RS28-1503 | ND |
| 2015-08-12 | 3298645RS28-1503 | ND |
| 2015-08-12 | 3298618RS28-1503 | ND |
| 2015-08-12 | 3298586RS28-1503 | ND |
| 2015-08-12 | 3298574RS28-1503 | ND |
| 2015-08-12 | 3298550RS28-1503 | ND |
| 2015-08-12 | 3298538RS28-1503 | ND |
| 2015-08-12 | 3298514RS28-1503 | ND |
| 2016-05-10 | 3446461RS28-1602 | ND |
| 2016-05-11 | 3446395RS28-1602 | ND |
| 2016-05-11 | 3446406RS28-1602 | ND |
| 2016-05-11 | 3446417RS28-1602 | ND |
| 2016-05-11 | 3446428RS28-1602 | ND |
| 2016-05-11 | 3446439RS28-1602 | ND |
| 2016-05-11 | 3446450RS28-1602 | ND |
| 2016-06-08 | 3468294RS28-1602 | ND |
| 2016-06-20 | 3475737RS28-1602 | ND |
| 2018-05-16 | P0518466RS28-180 | ND |
| 2018-05-16 | P0518465RS28-180 | ND |
| 2018-05-16 | P0518464RS28-180 | ND |
| 2018-05-16 | P0518463RS28-180 | ND |
| 2018-05-16 | P0518462RS28-180 | ND |
| 2018-05-16 | P0518461RS28-180 | ND |
| 2018-05-16 | P0518460RS28-180 | ND |
| 2018-05-16 | P0518459RS28-180 | ND |
| 2018-06-13 | 2018062200RS28-1 | ND |
| 2018-08-14 | P0818554 | ND |
| 2018-08-15 | P0818547 | ND |
| 2018-08-15 | P0818553 | ND |
| 2018-08-15 | P0818552 | ND |
| 2018-08-15 | P0818551 | ND |
| 2018-08-15 | P0818550 | ND |
| 2018-08-15 | P0818549 | ND |
| 2018-08-15 | P0818548 | ND |
| 2018-08-15 | P0818546 | ND |
| 2019-05-15 | P0519-368 | ND |
| 2019-05-15 | P0519-358 | ND |
| 2019-05-15 | P0519-353 | ND |
| 2019-05-15 | P0519-348 | ND |
| 2019-05-15 | P0519-343 | ND |
| 2019-05-15 | P0519-338 | ND |
| 2019-05-15 | P0519-333 | ND |
| 2019-08-14 | P0819434RS28-190 | ND |