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EWG's Tap Water Database — 2021 UPDATE

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2,4,5-TP (Silvex)

Meriden Water Division

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

 

68

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND200ND
2015ND60ND
2016ND80ND
2017ND60ND
2018ND80ND
2019ND200ND

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
2014-01-02BF94385SOCRND
2014-05-29BG50268SOC2ND
2014-05-29BG50269SOC2ND
2014-05-29BG50270SOC2ND
2014-06-26BG65689SOC2ND
2014-06-26BG65690SOC2ND
2014-06-26BG65691SOC2ND
2014-07-10BG72748SOC2ND
2014-07-24BG81504SOCRND
2014-07-24BG81508SOCRND
2014-07-24BG81507SOCRND
2014-07-24BG81506SOCRND
2014-07-24BG81505SOCRND
2014-09-24BH19407SOC2ND
2014-09-24BH19408SOC2ND
2014-10-29BH34201SOC2ND
2014-10-29BH34200SOC2ND
2014-10-29BH34199SOC2ND
2014-10-29BH34198SOC2ND
2014-12-18BH55039SOC2ND
2015-06-11BJ29694SOCRND
2015-06-11BJ29695SOCRND
2015-06-11BJ29696SOCRND
2015-06-11BJ29697SOCRND
2015-06-11BJ29698SOCRND
2015-06-11BJ29699SOCRND
2016-01-21BK55828SOC2ND
2016-04-28BN21072SOC2ND
2016-07-28BN81910SOCRND
2016-07-28BN81911SOCRND
2016-07-28BN81912SOCRND
2016-07-28BN81913SOCRND
2016-07-28BN81914SOCRND
2016-07-28BN81915SOCRND
2017-06-29BY50184SOCRND
2017-06-29BY50185SOCRND
2017-06-29BY50180SOCRND
2017-06-29BY50182SOCRND
2017-06-29BY50181SOCRND
2017-06-29BY50183SOCRND
2018-07-26CA98735ND
2018-07-26CA98736ND
2018-07-26CA98737ND
2018-07-26CA98738ND
2018-07-26CA98739ND
2018-08-23CB17437ND
2018-10-24CB81094ND
2018-10-24CB81095ND
2019-01-16CC30223ND
2019-01-16CC30225ND
2019-01-16CC30226ND
2019-03-06CC63089ND
2019-04-17CC96464ND
2019-04-25CD01541ND
2019-04-25CD01542ND
2019-04-29CD03411ND
2019-05-29CD22755ND
2019-06-19CD38006ND
2019-06-19CD38007ND
2019-06-19CD38013ND
2019-06-26CD42473ND
2019-06-26CD42471ND
2019-06-26CD42472ND
2019-07-03CD50737ND
2019-07-03CD50736ND
2019-07-31CD69100ND
2019-09-25CE17376ND
2019-12-16CE88625ND