Know Your Environment. Protect Your Health.

Diquat

Paw Glen Alsace Div

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

 

58

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND50ND
2020ND250ND
2021ND10ND
2022ND10ND
2023ND250ND

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
2018-02-1338539301ND
2019-02-0542852901ND
2019-07-2245717501ND
2019-07-2245717601ND
2019-07-2245717401ND
2019-07-2946133302ND
2020-02-1121708734.00ND
2020-05-0422262939.00ND
2020-05-0422262910.00ND
2020-05-0622263078.00ND
2020-05-1122262968.00ND
2020-05-1122262997.00ND
2020-05-1122262823.00ND
2020-05-1322262881.00ND
2020-05-1322263049.00ND
2020-05-1322262852.00ND
2020-05-1822263391.00ND
2020-05-1922263449.00ND
2020-05-1922263420.00ND
2020-08-0422845390.00ND
2020-08-0422845361.00ND
2020-08-0622845332.00ND
2020-08-0622845511.00ND
2020-08-1122845482.00ND
2020-08-1122845453.00ND
2020-08-1122845424.00ND
2020-08-1222845890.00ND
2020-08-1222845919.00ND
2020-08-1222845303.00ND
2020-08-1322845977.00ND
2020-08-1822845948.00ND
2021-02-1023928408.00ND
2022-02-2126157320.00ND
2023-02-0828389672.00ND
2023-05-0428950169.00ND
2023-05-0428950140.00ND
2023-05-0428950053.00ND
2023-05-0428950111.00ND
2023-05-0428950082.00ND
2023-05-1128950259.00ND
2023-05-1128949995.00ND
2023-05-1128950228.00ND
2023-05-1128950288.00ND
2023-05-1128949966.00ND
2023-05-1128950024.00ND
2023-05-1128950230.00ND
2023-08-0329546809.00ND
2023-08-0329546860.00ND
2023-08-0329546807.00ND
2023-08-0329546884.00ND
2023-08-0329546896.00ND
2023-08-0929546998.00ND
2023-08-0929546722.00ND
2023-08-0929546751.00ND
2023-08-0929546693.00ND
2023-08-1029546928.00ND
2023-08-1029546664.00ND
2023-08-1029546957.00ND