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EWG's Tap Water Database — 2021 UPDATE

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2,4,5-TP (Silvex)

Kingman Municipal Water

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.

 

31

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015ND120ND
2016ND20ND
2017N/A00N/A
2018ND150ND

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
2015-02-09550-39973-1ND
2015-02-09550-39972-1ND
2015-02-09550-39970-1ND
2015-02-17550-40405-1ND
2015-02-17550-40404-1ND
2015-02-17550-40403-1ND
2015-08-17550-49709-1ND
2015-08-17550-49708-1ND
2015-08-17550-49707-1ND
2015-08-17550-49706-1ND
2015-08-17550-49705-1ND
2015-08-17550-49703-1ND
2016-02-16550-59042-1ND
2016-07-12550-66385-1SND
2018-02-26550-98566-1 SOCND
2018-02-26550-98567-1 SOCND
2018-03-06550-99028-1 SOCND
2018-03-06550-99016-1 SOCND
2018-03-13550-99583-1 SOCND
2018-03-26680-150420-1ND
2018-03-26680-150418-1 SOCND
2018-07-17550-106341-1ND
2018-07-17550-106339-1ND
2018-07-24550-106642-1 SOCND
2018-07-24550-106641-1ND
2018-07-24550-106638-1ND
2018-07-31550-107012-1ND
2018-07-31550-107010-1ND
2018-10-08550-111363-1ND
2019-01-294188423ND
2019-07-094351373ND