Know Your Environment. Protect Your Health.

Glyphosate

Lafourche Water 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.

 

32

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND80ND
2019ND80ND
2020ND40ND
2021ND40ND
2022ND40ND
2023ND40ND

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
2018-01-2535370415009ND
2018-01-2535370415009ND
2018-02-2635377894001ND
2018-02-2635377894001ND
2018-07-2335406305001ND
2018-07-2335406305001ND
2018-08-2335413196001ND
2018-08-2335413196001ND
2019-01-2935445082001ND
2019-01-2935445082001ND
2019-02-1835449374001ND
2019-02-1835449374001ND
2019-07-2435484855001ND
2019-07-2435484855001ND
2019-08-2835494052001ND
2019-08-2835494052001ND
2020-01-2235526013001ND
2020-01-2235526013002ND
2020-10-1535585520001ND
2020-12-0335596468001ND
2021-03-1135619276001ND
2021-03-1135619285001ND
2021-11-0435675774001ND
2021-12-1635685695001ND
2022-03-0235701429001ND
2022-03-0235701432001ND
2022-08-2535742731001ND
2022-10-1235753130001ND
2023-02-2735782418001ND
2023-03-2735789305001ND
2023-10-2335836721001ND
2023-12-1435848533001ND