Know Your Environment. Protect Your Health.

Oxamyl (Vydate)

City of Tualatin

NOTE: City of Tualatin purchases water from Portland Water Bureau which is required to test for oxamyl (vydate). Sample information shown below was taken by Portland Water Bureau.

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

 

9

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019N/A00N/A
2020ND20ND
2021ND10ND
2022N/A00N/A
2023ND20ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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

NOTE: City of Tualatin purchases water from Portland Water Bureau which is required to test for oxamyl (vydate). Sample information shown below was taken by Portland Water Bureau.

Date Lab ID Result
2018-03-15BC03118-SND
2020-05-12BC38533-SND
2020-08-04202008070432-SND
2020-08-05202008070418-SND
2021-08-04BC60213-SND
2023-04-04380-42758-1-SND
2023-08-15380-59561-1-SND
2023-08-29380-61323-1ND
2023-10-02380-65583-1-SND