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EWG's Tap Water Database — 2019 UPDATE

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Glyphosate

North Penn Water Authority

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.

 

56

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
2013N/A00N/A
2014ND240ND
2015ND20ND
2016ND20ND
2017ND280ND

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
2014-04-2214040589-01ND
2014-04-2214040590-01ND
2014-04-2214030715-01ND
2014-04-2214030714-01ND
2014-04-2214030712-01ND
2014-04-2814040582-01ND
2014-04-2914040579-01ND
2014-04-2914030720-01ND
2014-04-2914030719-01ND
2014-04-2914030716-01ND
2014-04-2914030718-01ND
2014-05-1914041348-01ND
2014-07-0714070808-001ND
2014-07-0714070812-001ND
2014-07-0714070809-001ND
2014-07-0714070804-001ND
2014-07-0714070787-001ND
2014-07-2114072516-001ND
2014-07-2114072521-001ND
2014-08-0414080384-001ND
2014-08-2514082298-01ND
2014-08-2514082297-01ND
2014-08-2514082296-01ND
2014-08-2514082295-01ND
2015-07-0213013246ND
2015-12-0913633926ND
2016-08-2314907920ND
2016-11-0215226747ND
2017-01-1115517889ND
2017-04-0515937089ND
2017-04-0515937114ND
2017-04-0515937018ND
2017-04-0515937160ND
2017-04-0515937053ND
2017-04-0515936982ND
2017-04-0515937195ND
2017-04-1915937868ND
2017-04-1915937904ND
2017-04-1915938012ND
2017-04-1915938048ND
2017-04-1915937976ND
2017-04-1915937940ND
2017-07-1216414005ND
2017-07-1216414077ND
2017-07-1216414041ND
2017-07-1216414112ND
2017-07-1216413899ND
2017-07-1216413934ND
2017-07-1216413970ND
2017-07-1716414292ND
2017-07-1716414256ND
2017-07-1716414220ND
2017-07-1716414148ND
2017-07-1716414184ND
2017-07-1716414328ND
2017-10-0916880775ND