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EWG's Tap Water Database — 2019 UPDATE

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Glyphosate

Slidell Water Supply

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013ND80ND
2014N/A00N/A
2015N/A00N/A
2016ND80ND
2017N/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
2013-09-10AD83679ND
2013-09-10AD83680ND
2013-09-10AD83681ND
2013-09-10AD83682ND
2013-09-10AD83679ND
2013-09-10AD83680ND
2013-09-10AD83681ND
2013-09-10AD83682ND
2016-09-1235265891001ND
2016-09-1235265891002ND
2016-09-1235265891003ND
2016-09-1235265891004ND
2016-09-1235265891001ND
2016-09-1235265891002ND
2016-09-1235265891003ND
2016-09-1235265891004ND