Know Your Environment. Protect Your Health.

Diquat

Veolia Water Pa Dallas

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

 

30

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
2020ND180ND
2021N/A00N/A
2022N/A00N/A
2023ND120ND

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
2020-04-0722039344.00ND
2020-04-0722039342.00ND
2020-04-0722039341.00ND
2020-04-0722039343.00ND
2020-04-0722039340.00ND
2020-04-0722039339.00ND
2020-09-2323015664.00ND
2020-09-2323015660.00ND
2020-09-2323015661.00ND
2020-09-2323015659.00ND
2020-09-2323015663.00ND
2020-09-2323015662.00ND
2020-09-2423015673.00ND
2020-09-2423015669.00ND
2020-09-2423015668.00ND
2020-09-2423015670.00ND
2020-09-2423015672.00ND
2020-09-2423015671.00ND
2023-04-2428917813.00ND
2023-04-2428917817.00ND
2023-04-2428917818.00ND
2023-04-2428917816.00ND
2023-04-2428917815.00ND
2023-04-2428917814.00ND
2023-07-2429515347.00ND
2023-07-2429515346.00ND
2023-07-2429515348.00ND
2023-07-2429515345.00ND
2023-07-2429515344.00ND
2023-07-2429515343.00ND