Know Your Environment. Protect Your Health.

Glyphosate

Desoto Parish Water Works District 1

Glyphosate is the weedkiller marketed as Roundup. The state of California classifies glyphosate as a chemical known to cause cancer. Read More.

Glyphosate is classified as a probable human carcinogen by the International Agency for Research on Cancer and has been linked to increased risk of non-Hodgkin’s lymphoma in people. Exposure to glyphosate during pregnancy may affect fetal development.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
2020ND20ND
2021ND20ND
2022ND20ND
2023ND20ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 5 ppb

The EWG Health Guideline of 5 ppb for glyphosate was defined by EWG as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

EPA Maximum Contaminant
Level (MCL): 700 ppb

The legal limit for glyphosate, established in 1992, was based on a toxicity study in laboratory animals conducted in the 1980s. This limit does not account for the cancer risks of glyphosate and does not include any additional consideration of children’s health.

ppb = parts per billion

All test results

Date Lab ID Result
2018-02-2035375984001ND
2018-02-2035375984001ND
2018-08-0635409598001ND
2018-08-0635409598001ND
2019-03-1335454726001ND
2019-03-1335454726001ND
2019-07-3135486403001ND
2019-07-3135486403001ND
2020-02-0335528234001ND
2020-09-2235579689001ND
2021-01-1335604986003ND
2021-08-1735657244002ND
2022-02-2235699238001ND
2022-08-2235742155001ND
2023-02-0735778295004ND
2023-08-2135823281001ND