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EWG's Tap Water Database — 2021 UPDATE

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Glyphosate

California Water Service (CWS) - Salinas

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

 

96

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND170ND
2015ND80ND
2016ND10ND
2017ND50ND
2018ND220ND
2019ND430ND

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
2014-02-059590-046-1404ND
2014-02-129590-103-1358ND
2014-02-129590-102-1315ND
2014-02-129590-123-0930ND
2014-02-199590-106-1140ND
2014-05-079590-102-1418ND
2014-05-079590-103-1454ND
2014-05-139590-123-1026ND
2014-05-159590-046-1114ND
2014-08-049590-103-1412ND
2014-08-049590-046-1048ND
2014-08-049590-102-0905ND
2014-08-049590-123-0936ND
2014-11-129590-123-1404ND
2014-11-129590-103-0954ND
2014-11-129590-102-1024ND
2014-11-199590-046-1448ND
2015-02-079590-102-1103ND
2015-02-079590-103-1047ND
2015-02-079590-123-1137ND
2015-02-259590-046-1412ND
2015-05-149590-123-1434ND
2015-05-149590-102-1553ND
2015-05-149590-103-1507ND
2015-05-199590-046-1401ND
2016-12-299590-008-1413ND
2017-01-199590-014-1048ND
2017-03-029590-132-1100ND
2017-04-059590-005-1428ND
2017-11-219590-131-1240ND
2017-12-149590-132-1456ND
2018-02-019590-102-0955ND
2018-02-019590-103-1043ND
2018-02-069590-024-1030ND
2018-03-192920-123-1200ND
2018-03-209590-132-0953ND
2018-05-019590-103-1010ND
2018-05-019590-019-0943ND
2018-05-029590-102-0858ND
2018-05-039590-123-0928ND
2018-06-079590-132-1033ND
2018-08-029590-019-1056ND
2018-09-049590-132-1034ND
2018-10-029590-009-0928ND
2018-10-099590-018-1140ND
2018-10-299590-020-1318ND
2018-11-069590-104-0936ND
2018-11-079590-006-1026ND
2018-11-089590-024-1201ND
2018-11-209590-027-1346ND
2018-12-062920-132-1148ND
2018-12-062920-037-1016ND
2018-12-189590-015-0944ND
2019-01-039590-022-1009ND
2019-01-039590-009-1359ND
2019-01-239590-041-1311ND
2019-01-299590-018-1411ND
2019-02-059590-017-1431ND
2019-02-059590-026-1409ND
2019-02-069590-027-0924ND
2019-02-209590-104-1139ND
2019-02-209590-006-1031ND
2019-02-209590-019-0921ND
2019-03-069590-037-1024ND
2019-03-069590-132-0954ND
2019-03-149590-015-1443ND
2019-03-219590-023-1310ND
2019-04-019590-008-0915ND
2019-04-019590-022-1120ND
2019-04-029590-005-1406ND
2019-04-119590-041-1206ND
2019-05-019590-017-1232ND
2019-05-019590-026-1411ND
2019-05-089590-014-1433ND
2019-05-089590-019-1004ND
2019-06-129590-046-1030ND
2019-06-189590-106-1107ND
2019-06-189590-132-0948ND
2019-06-189590-023-1321ND
2019-07-029590-008-1020ND
2019-07-109590-029-0937ND
2019-07-169590-005-1130ND
2019-07-189590-030-1340ND
2019-07-189590-020-1120ND
2019-08-019590-014-1129ND
2019-09-129590-132-1442ND
2019-09-129590-046-1045ND
2019-09-129590-106-1057ND
2019-09-179590-131-1340ND
2019-09-259590-043-1242ND
2019-10-019590-029-1125ND
2019-10-039590-030-0940ND
2019-10-089590-020-0949ND
2019-12-039590-131-1013ND
2019-12-039590-132-0946ND
2019-12-059590-043-1357ND