Know Your Environment. Protect Your Health.

Glyphosate

Ward II Water District

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.

 

40

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND160ND
2019ND20ND
2020ND20ND
2021ND140ND
2022ND10ND
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
2018-05-0235390161002ND
2018-05-0235390161001ND
2018-05-0235390161002ND
2018-05-0235390161001ND
2018-06-2535400823001ND
2018-06-2535400823002ND
2018-06-2535400823003ND
2018-06-2535400823004ND
2018-06-2535400823005ND
2018-06-2535400823005ND
2018-06-2535400823001ND
2018-06-2535400823002ND
2018-06-2535400823003ND
2018-06-2535400823004ND
2018-09-1035417396001ND
2018-09-1035417396001ND
2019-07-2435485209001ND
2019-07-2435485209001ND
2020-06-2335558765001ND
2020-06-2335558765002ND
2021-03-2935622757003ND
2021-03-2935622757002ND
2021-03-2935622757001ND
2021-06-1435641231005ND
2021-06-1435641231004ND
2021-06-1435641231001ND
2021-06-1435641231002ND
2021-06-1435641231003ND
2021-06-2835644430001ND
2021-06-2835644434003ND
2021-06-2835644434002ND
2021-06-2835644434001ND
2021-06-2835644430003ND
2021-06-2835644430002ND
2022-08-2235742597001ND
2023-05-0835799020001ND
2023-05-0835799020002ND
2023-05-0835799020003ND
2023-05-0835799020004ND
2023-05-0835799020005ND