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EWG's Tap Water Database — 2021 UPDATE

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2,4,5-TP (Silvex)

Rio Rancho Water and Waterworks Services

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

 

32

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND220ND
2015N/A00N/A
2016N/A00N/A
2017ND90ND
2018ND10ND
2019N/A00N/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
2014-02-262014006929ND
2014-02-262014006934ND
2014-02-262014006927ND
2014-02-262014006930ND
2014-02-262014006926ND
2014-02-262014006928ND
2014-02-262014006931ND
2014-02-262014006933ND
2014-02-262014006932ND
2014-05-012014014727ND
2014-05-012014014732ND
2014-05-012014014730ND
2014-05-012014014728ND
2014-05-012014014733ND
2014-05-012014014726ND
2014-05-012014014731ND
2014-05-012014014729ND
2014-09-112014029140ND
2014-09-112014029139ND
2014-09-112014029138ND
2014-10-232014033294ND
2014-10-232014033295ND
2017-02-082017003708ND
2017-02-082017003709ND
2017-02-082017003711ND
2017-02-082017003710ND
2017-02-082017003712ND
2017-02-082017003713ND
2017-02-082017003714ND
2017-10-272017030985ND
2017-10-272017030986ND
2018-08-162018022997ND