Know Your Environment. Protect Your Health.

Diquat

Pawc Pocono District

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

 

36

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
2023ND180ND

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
2020-04-1622047149.00ND
2020-04-2722047207.00ND
2020-04-2722047178.00ND
2020-04-2922239150.00ND
2020-04-2922239121.00ND
2020-04-2922239063.00ND
2020-05-0422239092.00ND
2020-05-0422239034.00ND
2020-05-0522239179.00ND
2020-07-0822631008.00ND
2020-07-0822630863.00ND
2020-07-0822630979.00ND
2020-07-1322630805.00ND
2020-07-1322630834.00ND
2020-07-1322630776.00ND
2020-07-1422630950.00ND
2020-07-1422630921.00ND
2020-07-1422630892.00ND
2023-05-1028925560.00ND
2023-05-1028925473.00ND
2023-05-1028925705.00ND
2023-05-1028925703.00ND
2023-05-1028925647.00ND
2023-05-1028925502.00ND
2023-05-1028925618.00ND
2023-05-1028925589.00ND
2023-05-1028925531.00ND
2023-07-1929324802.00ND
2023-07-1929324746.00ND
2023-07-1929324630.00ND
2023-07-1929324829.00ND
2023-07-1929324659.00ND
2023-07-1929324601.00ND
2023-07-1929324859.00ND
2023-07-1929324717.00ND
2023-07-1929324688.00ND