Know Your Environment. Protect Your Health.

Diquat

Shakopee

Diquat is a herbicide used on potato crops and aquatic weeds.

 

40

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021ND200ND
2022ND200ND
2023N/A00N/A

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 6 ppb

The EWG Health Guideline of 6 ppb for diquat 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 cataracts.

EPA Maximum Contaminant
Level (MCL): 20 ppb

The legal limit for diquat, 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
2021-08-264999007ND
2021-08-264998989ND
2021-08-264998991ND
2021-08-264998993ND
2021-08-264998995ND
2021-08-264998997ND
2021-08-264998999ND
2021-08-264999001ND
2021-08-264999003ND
2021-08-264999005ND
2021-12-089733-4ND
2021-12-089580-1ND
2021-12-089580-2ND
2021-12-089580-3ND
2021-12-089580-4ND
2021-12-089732-1ND
2021-12-089732-2ND
2021-12-089733-1ND
2021-12-089733-2ND
2021-12-089733-3ND
2022-02-0213767-1ND
2022-02-0213767-2ND
2022-02-0213769-1ND
2022-02-0213769-2ND
2022-02-0213770-1ND
2022-02-0213770-2ND
2022-02-0213770-3ND
2022-02-2416045-3ND
2022-02-2416045-1ND
2022-02-2416045-2ND
2022-05-0924082-1ND
2022-05-0924082-2ND
2022-05-0924082-3ND
2022-05-0924082-4ND
2022-05-0924082-5ND
2022-05-0924082-6ND
2022-05-0924082-7ND
2022-05-0924082-8ND
2022-05-0924082-9ND
2022-11-0944329-1ND