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EWG's Tap Water Database — 2021 UPDATE

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Glyphosate

Enterprise Water Works

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.

 

68

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND110ND
2015ND160ND
2016ND100ND
2017ND150ND
2018ND160ND
2019N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2014-03-121403-00284-10ND
2014-03-121403-00284-11ND
2014-06-251406-00311-9ND
2014-06-251406-00311-3ND
2014-06-251406-00311-5ND
2014-06-251406-00311-7ND
2014-08-191408-00277-6ND
2014-08-191408-00277-5ND
2014-08-191408-00277-2ND
2014-08-191408-00277-3ND
2014-08-191408-00277-4ND
2015-02-171502-00240-6ND
2015-02-171502-00240-3ND
2015-02-171502-00240-1ND
2015-02-171502-00240-4ND
2015-02-171502-00240-2ND
2015-06-151506-00228-1SND
2015-06-151506-00228-1ND
2015-06-151506-00228-3ND
2015-06-151506-00228-2SND
2015-06-151506-00228-2ND
2015-06-151506-00228-3SND
2015-09-141509-00177-1ND
2015-11-041511-00076-1ND
2015-11-041511-00076-2ND
2015-11-041511-00076-3ND
2015-11-041511-00076-4ND
2016-03-161603-00261-2SND
2016-03-161603-00261-3SND
2016-03-161603-00261-1SND
2016-09-131609-00214-12ND
2016-09-131609-00214-9ND
2016-10-181610-00215-1SND
2016-12-061612-00141-29ND
2016-12-061612-00141-22ND
2016-12-061612-00141-33ND
2016-12-061612-00141-26ND
2017-02-281703-0015-006ND
2017-02-281703-0015-008`ND
2017-03-211703-00293-4ND
2017-06-221706-00372-3ND
2017-06-221706-00372-5ND
2017-06-221706-00372-8ND
2017-06-221706-00372-1ND
2017-06-261706-00408-1ND
2017-09-191709-00306-4ND
2017-09-191709-00306-6ND
2017-09-191709-00306-2ND
2017-09-191709-00306-3ND
2017-09-191709-00306-1ND
2017-09-191709-00306-5ND
2017-10-311711-00018-3ND
2018-03-141803-00266-33ND
2018-03-141803-00266-31ND
2018-03-141803-00266-002ND
2018-03-141803-00266-34ND
2018-03-141803-00266-32ND
2018-06-121806-00190-002ND
2018-06-121806-00190-003ND
2018-09-051809-00070-007ND
2018-09-051809-00070-003ND
2018-09-051809-00070-002ND
2018-09-051809-00070-009ND
2018-09-051809-00070-006ND
2018-11-271811-00495-010ND
2018-11-271811-00495-004ND
2018-11-271811-00495-001ND
2018-11-271811-00495-007ND