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EWG's Tap Water Database — 2019 UPDATE

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2,4,5-TP (Silvex)

City of El Mirage

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.

 

37

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013ND160ND
2014ND20ND
2015N/A00N/A
2016ND180ND
2017ND10ND

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
2013-02-273022037-01ND
2013-02-273022036-01ND
2013-02-273022035-01ND
2013-02-273022034-01ND
2013-02-273022033-01ND
2013-02-273022032-01ND
2013-02-273022031-01ND
2013-02-273022025-01ND
2013-07-223071896-01ND
2013-07-223071891-01ND
2013-07-223071892-01ND
2013-07-223071893-01ND
2013-07-223071894-01ND
2013-07-223071895-01ND
2013-07-233072038-01ND
2013-07-233072037-01ND
2014-02-114020905-01SND
2014-05-164051461-01ND
2016-03-076030608-01SND
2016-04-076040689-03SND
2016-04-076040689-02ND
2016-04-076040689-01ND
2016-05-166051378-01SND
2016-05-206051810-02SND
2016-05-206051810-01SND
2016-05-236051915-02SND
2016-05-236051915-01ND
2016-09-276092333-01SND
2016-12-146121326-01ND
2016-12-146121321-01ND
2016-12-156121430-01ND
2016-12-226121947-01SND
2016-12-276122102-01SND
2016-12-276122097-01SND
2016-12-286122222-01SOCND
2016-12-306122383-01SND
2017-09-187091550-01ND