2,4,5-TP (Silvex)
Brookwood Comm. 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.
84
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 | 42 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 42 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2014-01-06 | C315487-01 | ND |
| 2014-04-21 | C402205-01 | ND |
| 2014-05-15 | C402200-01 | ND |
| 2014-08-25 | C407347-01 | ND |
| 2014-08-25 | C407364-01 | ND |
| 2014-08-25 | C407367-01 | ND |
| 2014-09-08 | C407354-01 | ND |
| 2014-09-08 | C407343-01 | ND |
| 2014-09-08 | C407358-01 | ND |
| 2014-09-08 | C407356-01 | ND |
| 2014-09-08 | C407352-01 | ND |
| 2014-09-09 | C411674-01 | ND |
| 2014-09-09 | C407345-01 | ND |
| 2014-09-09 | C407349-01 | ND |
| 2014-09-09 | C407341-01 | ND |
| 2014-09-11 | C407368-01 | ND |
| 2014-09-15 | C407371-02 | ND |
| 2014-09-15 | C407371-01 | ND |
| 2014-09-15 | C407339-01 | ND |
| 2014-09-16 | C407365-02 | ND |
| 2014-09-16 | C407365-01 | ND |
| 2014-09-17 | C411407-01 | ND |
| 2014-09-17 | C407360-01 | ND |
| 2014-09-17 | C407369-01 | ND |
| 2014-10-16 | C411540-01 | ND |
| 2014-10-16 | C411546-01 | ND |
| 2014-10-16 | C411550-01 | ND |
| 2014-10-21 | C411542-01 | ND |
| 2014-10-21 | C411557-01 | ND |
| 2014-10-21 | C411559-01 | ND |
| 2014-10-21 | C411559-02 | ND |
| 2014-10-21 | C411555-01 | ND |
| 2014-10-21 | C411553-01 | ND |
| 2014-10-21 | C411541-01 | ND |
| 2014-10-22 | C411554-01 | ND |
| 2014-10-22 | C411536-01 | ND |
| 2014-10-24 | C413726-01 | ND |
| 2014-10-24 | C411538-01 | ND |
| 2014-10-28 | C411544-01 | ND |
| 2014-12-10 | C411551-01 | ND |
| 2014-12-10 | C413977-01 | ND |
| 2014-12-16 | C411558-01 | ND |
| 2017-01-27 | CZ17238-01 | ND |
| 2017-06-01 | CA02288-01 | ND |
| 2017-06-01 | CA02290-01 | ND |
| 2017-06-06 | CA02295-01 | ND |
| 2017-08-16 | CA07508-02 | ND |
| 2017-08-17 | CA07497-01 | ND |
| 2017-08-17 | CA12575-01 | ND |
| 2017-08-17 | CA07517-01 | ND |
| 2017-08-17 | CA07500-01 | ND |
| 2017-08-17 | CA07512-01 | ND |
| 2017-08-18 | CA07487-01 | ND |
| 2017-08-18 | CA07514-01 | ND |
| 2017-08-18 | CA07509-02 | ND |
| 2017-08-18 | CA07509-01 | ND |
| 2017-08-18 | CA07504-01 | ND |
| 2017-08-18 | CA07502-01 | ND |
| 2017-08-18 | CA07492-01 | ND |
| 2017-08-18 | CA07489-01 | ND |
| 2017-08-18 | CA07487-02 | ND |
| 2017-08-18 | CA07484-01 | ND |
| 2017-08-23 | CA12957-01 | ND |
| 2017-08-24 | CA07494-01 | ND |
| 2017-08-24 | CA07515-01 | ND |
| 2017-08-30 | CA07485-01 | ND |
| 2017-10-26 | CA12714-01 | ND |
| 2017-10-26 | CA12704-01 | ND |
| 2017-10-26 | CA12697-01 | ND |
| 2017-11-01 | CA12706-01 | ND |
| 2017-11-16 | CA12703-01 | ND |
| 2017-11-16 | CA12718-01 | ND |
| 2017-11-16 | CA12701-02 | ND |
| 2017-11-16 | CA12701-01 | ND |
| 2017-11-17 | CA12702-01 | ND |
| 2017-11-17 | CA12698-01 | ND |
| 2017-11-22 | CA12716-01 | ND |
| 2017-11-22 | CA12713-02 | ND |
| 2017-11-22 | CA12713-01 | ND |
| 2017-11-29 | CA12710-01 | ND |
| 2017-11-29 | CA12711-01 | ND |
| 2017-11-29 | CA12719-01 | ND |
| 2017-11-29 | CA12720-01 | ND |
| 2017-11-29 | CA12720-02 | ND |