Know Your Environment. Protect Your Health.

Diquat

Aqua Pa Water Co. Honesdale

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

 

16

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
2020ND80ND
2021N/A00N/A
2022N/A00N/A
2023ND80ND

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
2020-04-1622060036.00ND
2020-04-1622059956.00ND
2020-04-1622059970.00ND
2020-04-1622059993.00ND
2020-07-0922642921.00ND
2020-07-0922642885.00ND
2020-07-0922642849.00ND
2020-08-2522834889.00ND
2023-04-2028740239.00ND
2023-04-2028740149.00ND
2023-04-2028740210.00ND
2023-04-2028740179.00ND
2023-07-2029337295.00ND
2023-07-2029337259.00ND
2023-07-2029337487.00ND
2023-07-2029337223.00ND