2,4,5-TP (Silvex)

Village of Georgetown Water Supply

NOTE: Village of Georgetown Water Supply purchases water from Red Hill Waterworks Inc. which is required to test for 2,4,5-tp (silvex). Sample information shown below was taken by Red Hill Waterworks Inc..

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.

MORE ABOUT THIS CONTAMINANT

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Range of results
2014	N/A	0	N/A
2015	N/A	0	N/A
2016	ND	12	ND
2017	ND	2	ND
2018	N/A	0	N/A
2019	ND	6	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
2016-02-04	35228303005	ND
2016-02-04	35228303004	ND
2016-02-04	35228303003	ND
2016-02-04	35228303004	ND
2016-02-04	35228303005	ND
2016-02-04	35228303003	ND
2016-12-08	35282709004	ND
2016-12-08	35282709005	ND
2016-12-08	35282709006	ND
2016-12-08	35282709006	ND
2016-12-08	35282709005	ND
2016-12-08	35282709004	ND
2017-10-17	35342600001	ND
2017-10-17	35342600001	ND
2019-09-13	35498092001	ND
2019-09-13	35498092003	ND
2019-09-13	35498092002	ND
2019-09-13	35498092001	ND
2019-09-13	35498092003	ND
2019-09-13	35498092002	ND