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EWG's Tap Water Database — 2021 UPDATE

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Simazine

Hicksville WD

Simazine is a hormone-disrupting herbicide related to atrazine. It affects the male and female reproductive systems. In studies of laboratory animals, simazine increases blood levels of estrogen, decreases prolactin and progesterone, and causes mammary and ovarian tumors.

MORE ABOUT THIS CONTAMINANT

 

76

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
2014ND90ND
2015ND120ND
2016ND90ND
2017ND50ND
2018ND120ND
2019ND290ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for simazine was defined by EWG based on epidemiological studies of human exposure to atrazine in drinking water. This health guideline protects against harm to the developing fetus, harm to the reproductive system and hormone disruption.

EPA Maximum Contaminant
Level (MCL) 4 ppb

The legal limit for simazine, established in 1992, was based on toxicity studies in laboratory animals conducted in the 1980s. This limit does not fully protect against harm to the reproductive system, harm to the developing fetus, and hormone disruption.

ppb = parts per billion

All test results

Date Lab ID Result
2014-06-231406G49-002-SOCSND
2014-06-231406G06-001-SOCSND
2014-06-231406G06-003-SOCSND
2014-06-231406G06-004-SOCSND
2014-06-231406G49-001-SOCSND
2014-06-231406G49-003-SOCSND
2014-06-231406G06-002-SOCSND
2014-08-131408900-002-SOCSND
2014-08-131408900-001-SOCSND
2015-11-161511C01-001-SOCSND
2015-12-031512265-001-SOCSND
2015-12-071512556-002-SOCSND
2015-12-071512556-001-SOCSND
2015-12-091512765-002-SOCSND
2015-12-091512765-001-SOCSND
2015-12-101512919-001-SOCSND
2015-12-101512888-0001-SOCND
2015-12-101512888-002-SOCSND
2015-12-171512F02-002-SOCSND
2015-12-171512F02-003-SOCSND
2015-12-171512F02-001-SOCSND
2016-10-12702446001ND
2016-10-12702446002ND
2016-10-13702004001ND
2016-10-18702272002-SOCSND
2016-10-18702272001-SOCSND
2016-10-24702740001ND
2016-10-24702740002ND
2016-10-25702945001AND
2016-10-25702942001ND
2017-06-157021489002-SOCSND
2017-06-157021489001-SOCSND
2017-06-217022029001ND
2017-06-217022029003-SOCSND
2017-06-217022029002-SOCSND
2018-12-107073415003-SOCSND
2018-12-107073415002-SOCSND
2018-12-107073415001-SOCSND
2018-12-107073415005-SOCSND
2018-12-107073415004-SOCSND
2018-12-117073560002-SOCSND
2018-12-117073560001ND
2018-12-127073759002-SOCSND
2018-12-127073759001-SOCSND
2018-12-137073937001-SOCSND
2018-12-137073937002-SOCSND
2018-12-147074047001-SOCSND
2019-06-107092931001ND
2019-06-107092931001-SOCSND
2019-06-107092931002ND
2019-06-10D9F1485-01ND
2019-06-107092931002-SOCSND
2019-06-10D9F1485-02ND
2019-06-12D9F1688-01ND
2019-06-12D9F1688-02ND
2019-06-127093435001ND
2019-06-127093435002ND
2019-06-18D9F2337-01ND
2019-06-187094125001ND
2019-06-207094870004ND
2019-06-207094870002ND
2019-06-207094870001ND
2019-06-247094894002ND
2019-06-247094894005ND
2019-06-247094894001ND
2019-06-247094894006ND
2019-06-247094894003ND
2019-06-247094942001ND
2019-06-247094942002ND
2019-06-257095112002ND
2019-06-257095112004ND
2019-06-257095112001ND
2019-06-267094870003ND
2019-06-267094894004ND
2019-06-287095112003ND
2019-09-1870105435001ND