2,4,5-TP (Silvex)
Aqua Pa Hatboro
NOTE: Aqua Pa Hatboro purchases water from Aqua Pennsylvania Main System which is required to test for 2,4,5-tp (silvex). Sample information shown below was taken by Aqua Pennsylvania Main 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.
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 | 12 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 14 | 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: Aqua Pa Hatboro purchases water from Aqua Pennsylvania Main System which is required to test for 2,4,5-tp (silvex). Sample information shown below was taken by Aqua Pennsylvania Main System.
| Date | Lab ID | Result |
|---|---|---|
| 2018-01-15 | 2288832001 | ND |
| 2020-04-06 | 22027296.00 | ND |
| 2020-04-07 | 22027370.00 | ND |
| 2020-04-09 | 22027340.00 | ND |
| 2020-04-13 | 22027610.00 | ND |
| 2020-04-16 | 22027642.00 | ND |
| 2020-04-23 | 22029517.00 | ND |
| 2020-07-13 | 22613586.00 | ND |
| 2020-07-14 | 22613561.00 | ND |
| 2020-07-15 | 22613832.00 | ND |
| 2020-07-20 | 22613868.00 | ND |
| 2020-07-22 | 22613940.00 | ND |
| 2020-07-22 | 22613904.00 | ND |
| 2021-05-17 | 24444600.00 | ND |
| 2023-01-25 | 28352814.00 | ND |
| 2023-01-25 | 28354038.00 | ND |
| 2023-01-25 | 28524996.00 | ND |
| 2023-01-27 | 28525019.00 | ND |
| 2023-01-30 | 28524973.00 | ND |
| 2023-01-30 | 28524950.00 | ND |
| 2023-01-31 | 28525064.00 | ND |
| 2023-01-31 | 28525088.00 | ND |
| 2023-01-31 | 28525042.00 | ND |
| 2023-02-03 | 28525111.00 | ND |
| 2023-02-08 | 28525134.00 | ND |
| 2023-04-03 | 28706456.00 | ND |
| 2023-04-03 | 28707937.00 | ND |
| 2023-04-04 | 28706449.00 | ND |
| 2023-04-04 | 28706442.00 | ND |
| 2023-04-04 | 28707911.00 | ND |
| 2023-04-12 | 28904063.00 | ND |
| 2023-04-12 | 28904091.00 | ND |
| 2023-04-12 | 28904009.00 | ND |
| 2023-04-13 | 28708577.00 | ND |
| 2023-04-13 | 28708583.00 | ND |
| 2023-04-17 | 28904032.00 | ND |
| 2023-04-17 | 28903976.00 | ND |
| 2023-04-17 | 28903948.00 | ND |
| 2023-04-18 | 28903867.00 | ND |
| 2023-04-19 | 28903921.00 | ND |
| 2023-04-27 | 28903897.00 | ND |
| 2023-05-01 | 28905176.00 | ND |
| 2023-06-07 | 29112016.00 | ND |
| 2023-07-10 | 29501521.00 | ND |
| 2023-07-11 | 29501519.00 | ND |
| 2023-07-11 | 29501520.00 | ND |
| 2023-07-12 | 29501522.00 | ND |
| 2023-07-12 | 29501523.00 | ND |
| 2023-07-12 | 29501524.00 | ND |
| 2023-07-12 | 29501517.00 | ND |
| 2023-07-12 | 29501526.00 | ND |
| 2023-07-12 | 29501518.00 | ND |
| 2023-07-12 | 29501525.00 | ND |
| 2023-07-25 | 29501646.00 | ND |
| 2023-07-25 | 29501618.00 | ND |
| 2023-07-26 | 29501760.00 | ND |
| 2023-07-31 | 29501733.00 | ND |
| 2023-07-31 | 29501702.00 | ND |
| 2023-07-31 | 29501674.00 | ND |
| 2023-07-31 | 29501788.00 | ND |
| 2023-07-31 | 29703739.00 | ND |
| 2023-09-13 | 29704634.00 | ND |
| 2023-10-11 | 29891176.00 | ND |
| 2023-10-19 | 30074818.00 | ND |
| 2023-10-19 | 30074846.00 | ND |
| 2023-10-19 | 30074790.00 | ND |
| 2023-10-25 | 30074946.00 | ND |
| 2023-10-26 | 30075002.00 | ND |
| 2023-10-30 | 30075030.00 | ND |
| 2023-10-30 | 30074974.00 | ND |
| 2023-11-01 | 30075058.00 | ND |
| 2023-11-01 | 30074919.00 | ND |
| 2023-11-01 | 30074891.00 | ND |
| 2023-11-07 | 30249575.00 | ND |
| 2023-11-07 | 30249603.00 | ND |