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EWG's Tap Water Database — 2019 UPDATE

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Glyphosate

City of Surprise - Mountain Vista

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.

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
2013ND40ND
2014ND40ND
2015ND10ND
2016ND50ND
2017ND40ND

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
2012-01-262012012-04SND
2012-01-262012012-03SND
2012-01-262012012-02SND
2012-01-262012012-01SND
2013-01-233011767-04ND
2013-01-233011767-03ND
2013-01-233011767-02ND
2013-01-233011767-01ND
2014-01-224011817-02SND
2014-01-224011817-04SND
2014-01-224011817-03SND
2014-01-224011817-01SND
2015-01-215011694-04ND
2016-01-256012035-04TND
2016-01-256012035-03TND
2016-01-256012035-03SND
2016-01-256012035-02TND
2016-01-256012035-01TND
2017-01-307012591-01SND
2017-01-307012591-04SND
2017-01-307012591-03SND
2017-01-307012591-02SND