Know Your Environment. Protect Your Health.

2,4,5-TP (Silvex)

Veiola Water Idaho

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.

 

221

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND220ND
2019ND280ND
2020ND230ND
2021ND640ND
2022ND580ND
2023ND260ND

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
2018-02-01S1804595ND
2018-02-01S1804593ND
2018-02-05S1804986ND
2018-02-06S1805278ND
2018-02-12S1806153ND
2018-05-15S1821853ND
2018-05-15S1821851ND
2018-05-23S1823164ND
2018-05-23S1823165ND
2018-06-06S1825588ND
2018-06-12S1826496ND
2018-06-15S1827348ND
2018-06-21S1828606ND
2018-06-21S1828608ND
2018-06-26S1829341ND
2018-07-02S1830575ND
2018-07-02S1830571ND
2018-07-05S1831162ND
2018-07-10S1832033ND
2018-07-10S1832034ND
2018-07-18S1833965ND
2018-07-18S1833961ND
2019-01-31S1904615ND
2019-02-07S1905724ND
2019-03-06S1909868ND
2019-03-06S1909865ND
2019-04-30S1919669ND
2019-04-30S1919667ND
2019-04-30S1919670ND
2019-05-08S1921261ND
2019-05-08S1921262ND
2019-05-08S1921263ND
2019-05-29S1925123ND
2019-06-11S1927613ND
2019-06-12S1927972ND
2019-06-20S1929654ND
2019-07-09S1933034ND
2019-07-09S1933032ND
2019-07-09S1933031ND
2019-07-10S1933341ND
2019-07-10S1933348ND
2019-07-10S1933346ND
2019-07-10S1933345ND
2019-07-18S1935149ND
2019-08-28S1942932ND
2019-08-28S1942930ND
2019-09-05S1944523ND
2019-10-02S1949691ND
2019-10-02S1949693ND
2019-10-02S1949692ND
2020-01-29S2004286ND
2020-05-11S2021169ND
2020-06-10S2027293ND
2020-06-22S2029093ND
2020-06-24S2029683ND
2020-06-24S2029689ND
2020-06-25S2029965ND
2020-06-25S2029962ND
2020-06-25S2029950ND
2020-07-07S2031611ND
2020-07-07S2031609ND
2020-07-09S2032318ND
2020-07-09S2032320ND
2020-07-22S2034799ND
2020-07-22S2034797ND
2020-07-22S2034795ND
2020-07-28S2035875ND
2020-07-28S2035873ND
2020-08-10S2038104ND
2020-08-10S2038103ND
2020-08-11S2038520ND
2020-10-07S2050275ND
2020-10-07S2050274ND
2021-02-11S2106746ND
2021-02-11S2106745ND
2021-02-11S2106744ND
2021-02-22S2108110ND
2021-02-23S2108307ND
2021-02-25S2108881ND
2021-03-10S2111201ND
2021-03-10S2111205ND
2021-03-10S2111206ND
2021-03-10S2111203ND
2021-03-31S2114461ND
2021-03-31S2114462ND
2021-03-31S2114463ND
2021-04-05S2115126ND
2021-04-14S2116878ND
2021-04-19S2117870ND
2021-04-19S2117871ND
2021-04-21S2118265ND
2021-04-21S2118271ND
2021-04-28S2119732ND
2021-04-28S2119731ND
2021-04-28S2119734ND
2021-05-05S2121271ND
2021-05-05S2121273ND
2021-05-05S2121279ND
2021-05-12S2122691ND
2021-05-12S2122693ND
2021-05-12S2122692ND
2021-05-12S2122689ND
2021-05-12S2122690ND
2021-06-02S2126625ND
2021-06-02S2126621ND
2021-06-02S2126626ND
2021-06-02S2126623ND
2021-06-02S2126619ND
2021-06-02S2126624ND
2021-06-07S2127259ND
2021-06-08S2127830ND
2021-06-09S2128359ND
2021-06-14S2129194ND
2021-06-14S2129196ND
2021-06-16S2129748ND
2021-06-16S2129750ND
2021-07-06S2133418ND
2021-07-06S2133431ND
2021-07-06S2133415ND
2021-07-06S2133414ND
2021-07-07S2133975ND
2021-07-07S2133977ND
2021-07-07S2133974ND
2021-07-07S2133971ND
2021-08-03S2139594ND
2021-08-03S2139586ND
2021-08-03S2139587ND
2021-08-03S2139593ND
2021-08-04S2139906ND
2021-08-09S2140777ND
2021-08-09S2140771ND
2021-08-09S2140775ND
2021-08-09S2140773ND
2021-09-01S2145791ND
2021-09-01S2145792ND
2021-10-04S2152673ND
2021-10-04S2152683ND
2022-02-23S2208845ND
2022-02-28S2209477ND
2022-03-02S2209967ND
2022-03-09S2211339ND
2022-04-20S2218605ND
2022-04-27S2219854ND
2022-04-27S2219855ND
2022-04-27S2219856ND
2022-05-04S2221318ND
2022-05-04S2221316ND
2022-05-11S2222576ND
2022-05-11S2222574ND
2022-05-26S2225368ND
2022-05-26S2225367ND
2022-05-26S2225363ND
2022-06-08S2227286ND
2022-06-08S2227285ND
2022-06-08S2227284ND
2022-06-15S2228543ND
2022-06-28S2230854ND
2022-06-28S2230845ND
2022-06-28S2230853ND
2022-06-28S2230852ND
2022-06-28S2230851ND
2022-06-28S2230848ND
2022-07-12S2233125ND
2022-07-12S2233124ND
2022-07-12S2233123ND
2022-07-12S2233122ND
2022-07-12S2233121ND
2022-07-19S2234595ND
2022-07-19S2234594ND
2022-07-19S2234593ND
2022-07-19S2234592ND
2022-07-19S2234590ND
2022-07-19S2234589ND
2022-07-26S2235905ND
2022-07-26S2235896ND
2022-07-26S2235895ND
2022-07-26S2235903ND
2022-07-26S2235901ND
2022-08-03S2237792ND
2022-08-03S2237791ND
2022-08-03S2237790ND
2022-08-03S2237789ND
2022-08-03S2237788ND
2022-08-03S2237787ND
2022-08-03S2237786ND
2022-08-03S2237785ND
2022-08-03S2237782ND
2022-10-04S2249481ND
2022-10-04S2249485ND
2022-10-04S2249484ND
2022-10-04S2249482ND
2022-10-06S2250197ND
2022-10-06S2250196ND
2022-10-06S2250195ND
2022-10-06S2250194ND
2023-01-24S2301536-01ND
2023-01-24SMDA0654-01ND
2023-03-08MDC0361-01ND
2023-03-09SMDC0424-01ND
2023-04-26S2307948-01ND
2023-04-27S2308074-01ND
2023-05-03S2308474-01ND
2023-06-07S2311324-01ND
2023-06-09S2311492-01ND
2023-06-09S2311490-01ND
2023-06-09S2311488-01ND
2023-06-14S2311845-01ND
2023-06-14S2311832-01ND
2023-07-06S2313609-01ND
2023-07-06S2313599-01ND
2023-07-13S2314410-01ND
2023-07-13S2314407-01ND
2023-07-14S2314545-01ND
2023-07-14S2314541-01ND
2023-07-14S2314538-01ND
2023-07-19S2314931-01ND
2023-07-26S2315529-01ND
2023-07-26S2315523-01ND
2023-07-31S2315898-01ND
2023-10-04S2321599-01ND
2023-10-04S2321585-01ND