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EWG's Tap Water Database — 2021 UPDATE

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Glyphosate

Chino Basin Desalter Authority - Desalter 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.

MORE ABOUT THIS CONTAMINANT

 

84

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND140ND
2015ND100ND
2016ND150ND
2017ND120ND
2018ND170ND
2019ND160ND

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
2014-01-214790-021-1400ND
2014-07-023334-001-0845ND
2014-07-023334-002-0745ND
2014-07-023334-004-0600ND
2014-07-093334-008-0745ND
2014-07-093334-007-0915ND
2014-07-093334-006-0845ND
2014-07-093334-005-0645ND
2014-07-163334-011-0800ND
2014-07-163334-010-0700ND
2014-07-163334-009-0600ND
2014-07-163334-013-0915ND
2014-07-233334-015-0600ND
2014-08-133334-014-0900ND
2015-07-083334-011-1123ND
2015-07-083334-010-1020ND
2015-07-083334-009-0915ND
2015-07-083334-008-0820ND
2015-07-083334-005-0730ND
2015-07-153334-021-0650ND
2015-07-223334-007-1045ND
2015-07-223334-013-0945ND
2015-07-223334-014-0853ND
2015-07-223334-006-1122ND
2016-05-033334-015-0732ND
2016-07-063334-010-0910ND
2016-07-063334-005-0600ND
2016-07-063334-008-0650ND
2016-07-063334-009-0800ND
2016-07-133334-021-0800ND
2016-07-133334-006-0700ND
2016-07-133334-007-0630ND
2016-07-203334-014-0900ND
2016-07-203334-011-0700ND
2016-07-203334-020-1000ND
2016-07-203334-013-0800ND
2016-07-273334-002-0730ND
2016-07-273334-004-0845ND
2016-07-273334-001-0700ND
2017-07-124790-020-0600ND
2017-07-124790-024-0630ND
2017-07-124790-023-0930ND
2017-07-194790-011-0530ND
2017-07-194790-013-0630ND
2017-07-194790-014-0730ND
2017-07-194790-015-0830ND
2017-07-264790-006-0900ND
2017-07-264790-007-0930ND
2017-07-264790-021-0700ND
2017-08-024790-001-0700ND
2017-08-024790-004-0815ND
2018-07-124790-007-1050ND
2018-07-124790-021-0700ND
2018-07-124790-006-0930ND
2018-07-174790-005-0830ND
2018-07-174790-010-1100ND
2018-07-174790-009-1015ND
2018-07-174790-008-0715ND
2018-07-244790-014-0800ND
2018-07-244790-013-0720ND
2018-07-244790-011-0635ND
2018-07-244790-015-0900ND
2018-07-314790-002-0530ND
2018-07-314790-001-0445ND
2018-07-314790-004-0830ND
2018-08-074790-023-0945ND
2018-08-074790-024-1030ND
2018-08-144790-020-0730ND
2019-07-104790-002-0915ND
2019-07-104790-001-1015ND
2019-07-104790-004-1100ND
2019-07-174790-009-0900ND
2019-07-174790-010-0800ND
2019-07-174790-005-0745ND
2019-07-174790-008-0830ND
2019-07-244790-013-0930ND
2019-07-244790-014-0900ND
2019-07-244790-015-1000ND
2019-07-314790-021-0945ND
2019-07-314790-007-0900ND
2019-07-314790-006-1000ND
2019-08-074790-024-0730ND
2019-08-074790-023-0800ND
2019-08-144790-020-0830ND