Know Your Environment. Protect Your Health.

Dinoseb

Kent Water Department

NOTE: Kent Water Department purchases water from City of Tacoma which is required to test for dinoseb. Sample information shown below was taken by City of Tacoma.

Dinoseb is a herbicide that causes birth defects and reproductive difficulties. It has been banned in the U.S. since 1986.

 

13

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
2020N/A00N/A
2021ND90ND
2022ND30ND
2023ND20ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EPA Maximum Contaminant
Level (MCL): 7 ppb

The legal limit for dinoseb, established in 1992, was based on toxicity studies conducted in laboratory animals in the 1970s and 1980s.

ppb = parts per billion

All test results

NOTE: Kent Water Department purchases water from City of Tacoma which is required to test for dinoseb. Sample information shown below was taken by City of Tacoma.

Date Lab ID Result
2021-06-214149605ND
2021-06-214149607ND
2021-06-214149606ND
2021-06-304142829ND
2021-06-304142830ND
2021-07-214157695ND
2021-07-214157684ND
2021-07-224157703ND
2022-02-014258884ND
2022-09-154369966ND
2022-11-154383023ND
2023-09-054543470ND
2023-09-064543472ND