Know Your Environment. Protect Your Health.

Glyphosate

New Orleans Carrollton Waterworks

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.

 

41

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND80ND
2019ND100ND
2020ND60ND
2021ND60ND
2022ND60ND
2023ND50ND

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
2018-03-1535380391002ND
2018-03-1535380391001ND
2018-03-1535380391001ND
2018-03-1535380391002ND
2018-08-1535411633001ND
2018-08-1535411633002ND
2018-08-1535411633002ND
2018-08-1535411633001ND
2019-02-2735451097001ND
2019-02-2735451098001ND
2019-02-2735451098001ND
2019-02-2735451097001ND
2019-08-0135486661001ND
2019-08-0135486665001ND
2019-08-0135486661001ND
2019-08-0135486665001ND
2019-09-1935499418001ND
2019-09-1935499418001ND
2020-03-2635540032001ND
2020-03-2635540029001ND
2020-03-2635540024001ND
2020-10-0835583702001ND
2020-10-0835583691001ND
2020-10-0835583701001ND
2021-03-2935622307001ND
2021-03-2935622309001ND
2021-03-2935622313001ND
2021-10-1435671090001ND
2021-10-1435671094001ND
2021-10-1435671099001ND
2022-03-1535704709001ND
2022-03-1535704707001ND
2022-03-1535704706001ND
2022-10-1335753420001ND
2022-10-1335753422001ND
2022-10-1335753419001ND
2023-03-0635783931001ND
2023-03-0635783938001ND
2023-03-0635783939001ND
2023-11-1635842434001ND
2023-11-1635842436001ND