Know Your Environment. Protect Your Health.

Diquat

Ocean Lakes Ltd

NOTE: Ocean Lakes Ltd purchases water from Grand Strand Water and Sewer Authority which is required to test for diquat. Sample information shown below was taken by Grand Strand Water and Sewer Authority.

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

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
2020ND30ND
2021ND10ND
2022ND30ND
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

NOTE: Ocean Lakes Ltd purchases water from Grand Strand Water and Sewer Authority which is required to test for diquat. Sample information shown below was taken by Grand Strand Water and Sewer Authority.

Date Lab ID Result
2018-08-20AE16876ND
2018-08-20AE16877ND
2018-08-20AE16878ND
2019-05-22AE30798ND
2019-05-22AE30800ND
2019-05-23AE30841ND
2020-04-21AE47473ND
2020-04-21AE47476ND
2020-04-23AE47608ND
2021-06-16AE67499ND
2022-05-23AE84081ND
2022-05-24AE84189ND
2022-05-25AE84252ND