2,4,5-TP (Silvex)
Bertie County Regional Water
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.
55
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 |
|---|---|---|---|---|
| 2018 | ND | 5 | 0 | ND |
| 2019 | ND | 13 | 0 | ND |
| 2020 | ND | 7 | 0 | ND |
| 2021 | ND | 8 | 0 | ND |
| 2022 | ND | 15 | 0 | ND |
| 2023 | ND | 7 | 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
| Date | Lab ID | Result |
|---|---|---|
| 2018-02-13 | 8802-021318-E3BS | ND |
| 2018-02-13 | 8802-021318-E13S | ND |
| 2018-04-04 | 8802-040418-E3BS | ND |
| 2018-04-09 | 8802-040918-E14S | ND |
| 2018-05-08 | 8802-050818-E13S | ND |
| 2019-05-06 | 8802-050619-E08S | ND |
| 2019-05-06 | 8802-050619-E09S | ND |
| 2019-05-20 | 8802-052019-E06S | ND |
| 2019-05-20 | 8802-052019-E7AS | ND |
| 2019-05-21 | 8802-052119-E04S | ND |
| 2019-05-23 | 8802-052319-E01S | ND |
| 2019-05-23 | 8802-052319-E02S | ND |
| 2019-07-08 | 8802-070819-E11S | ND |
| 2019-07-15 | 8802-071519-E10S | ND |
| 2019-08-06 | 8802-080619-E09S | ND |
| 2019-08-06 | 8802-080619-E08S | ND |
| 2019-10-14 | 8802-101419-E10S | ND |
| 2019-10-14 | 8802-101419-E11S | ND |
| 2020-01-24 | 8802-012420-E10S | ND |
| 2020-01-24 | 8802-012420-E11S | ND |
| 2020-01-27 | 8802-012720-E12S | ND |
| 2020-04-06 | 8802-040620-E10S | ND |
| 2020-04-06 | 8802-040620-E12S | ND |
| 2020-04-15 | 8802-041520-E11S | ND |
| 2020-04-21 | 8802-042120-E14S | ND |
| 2021-02-01 | 8802-020121-E13S | ND |
| 2021-02-01 | 8802-020121-E3BS | ND |
| 2021-04-05 | 8802-040521-E14S | ND |
| 2021-04-05 | 8802-040521-E3BS | ND |
| 2021-05-18 | 8802-051821-E13S | ND |
| 2021-07-12 | 8802-071221-E14S | ND |
| 2021-08-09 | 8802-080921-E3BS | ND |
| 2021-11-08 | 8802-110821-E3BS | ND |
| 2022-01-04 | 8802-010422-E06S | ND |
| 2022-01-04 | 8802-010422-E7AS | ND |
| 2022-01-12 | 8802-011222-E01S | ND |
| 2022-01-12 | 8802-011222-E02S | ND |
| 2022-01-18 | 8802-011822-E04S | ND |
| 2022-02-14 | 8802-021422-E3BS | ND |
| 2022-05-16 | 8802-051622-E09S | ND |
| 2022-05-16 | 8802-051622-E08S | ND |
| 2022-05-19 | 8802-051922-E06S | ND |
| 2022-05-19 | 8802-051922-E7AS | ND |
| 2022-05-23 | 8802-052322-E02S | ND |
| 2022-05-23 | 8802-052322-E01S | ND |
| 2022-05-25 | 8802-052522-E04S | ND |
| 2022-08-23 | 8802-082322-E08S | ND |
| 2022-08-23 | 8802-082322-E09S | ND |
| 2023-01-04 | 8802-010423-E3BS | ND |
| 2023-01-10 | 8802-011023-E11S | ND |
| 2023-01-10 | 8802-011023-E12S | ND |
| 2023-01-24 | 8802-012423-E10S | ND |
| 2023-06-07 | 8802-060723-E10S | ND |
| 2023-06-12 | 8802-061223-E11S | ND |
| 2023-06-26 | 8802-062623-E12S | ND |