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EWG's Tap Water Database — 2019 UPDATE

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Oxamyl (Vydate)

City of Lewiston

Oxamyl is a neurotoxic insecticide used on cotton, fruit and vegetable crops. It may harm fetal development.

 

19

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
2013ND50ND
2014ND10ND
2015ND60ND
2016ND50ND
2017ND10ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 26 ppb

The EWG Health Guideline of 26 ppb for oxamyl 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 the central nervous system.

EPA Maximum Contaminant
Level (MCL) 200 ppb

The legal limit for oxamyl, established in 1992, was based on a toxicity study in laboratory animals conducted in the 1980s.

ppb = parts per billion

All test results

Date Lab ID Result
2012-04-03S59257ND
2013-02-27S130228026-001ND
2013-08-21S130822058-003ND
2013-08-21S130822058-004ND
2013-08-21S130822058-005ND
2013-08-21S130822058-001ND
2014-02-25S140226039-001ND
2015-01-21S2150122025-001ND
2015-07-22S150723044-003ND
2015-07-22S150723044-002ND
2015-07-22S150723044-001ND
2015-08-19S150819036-001ND
2015-08-19S150819036-002ND
2016-03-16S160316040-001ND
2016-04-06S160407008-001ND
2016-04-06S160407008-002ND
2016-04-06S160407008-003ND
2016-05-16S160518056-001ND
2017-03-28S170328050-001ND