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EWG's Tap Water Database — 2021 UPDATE

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Glyphosate

Honolulu-Windward-Pearl Harbor

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

 

209

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND980ND
2015ND80ND
2016ND40ND
2017ND990ND
2018N/A00N/A
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
2014-02-19201402210438ND
2014-04-01201404030466ND
2014-04-01201404030467ND
2014-04-01201404030468ND
2014-04-01201404030469ND
2014-04-02201404040550ND
2014-04-02201404040551ND
2014-04-02201404040552ND
2014-04-02201404040553ND
2014-04-02201404040554ND
2014-04-04201404080620ND
2014-04-04201404080621ND
2014-04-07201404090482ND
2014-04-07201404090483ND
2014-04-07201404090484ND
2014-04-07201404090485ND
2014-04-08201404100546ND
2014-04-08201404100547ND
2014-04-08201404100549ND
2014-04-08201404100550ND
2014-04-08201404100551ND
2014-04-09201404120256ND
2014-04-09201404120257ND
2014-04-09201404120258ND
2014-04-11201404150363ND
2014-04-14201404160551ND
2014-04-14201404160552ND
2014-04-14201404160553ND
2014-04-14201404160554ND
2014-04-14201404160555ND
2014-04-14201404160556ND
2014-04-15201404170340ND
2014-04-15201404170341ND
2014-04-15201404170342ND
2014-04-15201404170344ND
2014-04-16201404180401ND
2014-04-16201404180402ND
2014-04-16201404180403ND
2014-04-16201404180404ND
2014-04-16201404180405ND
2014-04-16201404180406ND
2014-04-21201404230599ND
2014-04-22201404240273ND
2014-04-22201404240274ND
2014-04-23201404250201ND
2014-04-23201404250202ND
2014-04-28201404300621ND
2014-05-06201405080376ND
2014-07-07201407091151ND
2014-07-09201407110319ND
2014-07-09201407110320ND
2014-07-09201407110321ND
2014-07-14201407170344ND
2014-07-14201407170345ND
2014-07-14201407170634ND
2014-07-14201407170635ND
2014-07-15201407170633ND
2014-07-16201407180291ND
2014-07-16201407180292ND
2014-07-16201407180293ND
2014-07-16201407180294ND
2014-07-21201407230644ND
2014-07-22201407240385ND
2014-07-22201407240386ND
2014-07-22201407240387ND
2014-07-23201407250454ND
2014-07-23201407250455ND
2014-07-28201407300353ND
2014-07-28201407300354ND
2014-07-28201407300355ND
2014-07-28201407300356ND
2014-07-28201407300357ND
2014-07-28201407300358ND
2014-07-29201407310301ND
2014-07-29201407310302ND
2014-07-29201407310303ND
2014-07-29201407310304ND
2014-07-29201407310305ND
2014-07-30201408010298ND
2014-07-30201408010299ND
2014-07-30201408010300ND
2014-07-30201408010301ND
2014-08-06201408080380ND
2014-08-11201408130617ND
2014-08-11201408130618ND
2014-08-11201408130619ND
2014-08-11201408130620ND
2014-08-12201408150106ND
2014-08-12201408150107ND
2014-08-13201408150180ND
2014-08-13201408150181ND
2014-08-18201408210214ND
2014-08-18201408210215ND
2014-08-19201408220168ND
2014-08-26201408290555ND
2014-08-27201408300150ND
2014-10-28201410300232ND
2014-10-31201411040539ND
2015-02-09201502110395ND
2015-02-10201502120276ND
2015-05-04201505060108ND
2015-05-27201505290083ND
2015-07-08201507100093ND
2015-08-18201508200479ND
2015-10-19201510140073ND
2015-12-28201512180363ND
2016-02-09ND
2016-04-13ND
2016-05-02ND
2016-10-28ND
2017-02-14ND
2017-04-03ND
2017-04-03ND
2017-04-05ND
2017-04-05ND
2017-04-11ND
2017-04-11ND
2017-04-11ND
2017-04-17ND
2017-04-17ND
2017-04-18ND
2017-04-18ND
2017-04-19ND
2017-04-19ND
2017-04-19ND
2017-04-19ND
2017-04-19ND
2017-04-19ND
2017-04-20ND
2017-04-26ND
2017-05-01ND
2017-05-01ND
2017-05-02ND
2017-05-03ND
2017-05-03ND
2017-05-03ND
2017-05-03ND
2017-05-03ND
2017-05-04ND
2017-05-09ND
2017-05-09ND
2017-05-09ND
2017-05-10ND
2017-05-10ND
2017-05-11ND
2017-05-16ND
2017-05-16ND
2017-05-17ND
2017-05-22ND
2017-05-22ND
2017-05-22ND
2017-05-22ND
2017-05-22ND
2017-05-23ND
2017-05-23ND
2017-05-24ND
2017-05-30ND
2017-06-05ND
2017-06-06ND
2017-06-07ND
2017-06-07ND
2017-06-13ND
2017-07-05ND
2017-07-05ND
2017-07-07ND
2017-07-07ND
2017-07-10ND
2017-07-11ND
2017-07-11ND
2017-07-12ND
2017-07-12ND
2017-07-14ND
2017-07-14ND
2017-07-14ND
2017-07-14ND
2017-07-17ND
2017-07-17ND
2017-07-17ND
2017-07-17ND
2017-07-18ND
2017-07-18ND
2017-07-18ND
2017-07-18ND
2017-07-19ND
2017-07-19ND
2017-07-19ND
2017-07-19ND
2017-07-19ND
2017-07-19ND
2017-07-25ND
2017-07-25ND
2017-07-25ND
2017-07-25ND
2017-07-26ND
2017-07-26ND
2017-07-31ND
2017-07-31ND
2017-08-01ND
2017-08-01ND
2017-08-02ND
2017-08-02ND
2017-08-04ND
2017-08-04ND
2017-08-07ND
2017-08-07ND
2017-08-11ND
2017-08-15ND
2017-08-15ND
2017-10-26ND