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EWG's Tap Water Database — 2019 UPDATE

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Simazine

Kelly Lane WCID 2

NOTE: Kelly Lane WCID 2 purchases water from Manville WSC which is required to test for simazine. Sample information shown below was taken by Manville WSC.

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.

 

34

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND50ND
2013ND60ND
2014ND20ND
20150.0557 ppb73ND - 0.150 ppb
2016ND100ND
2017ND40ND

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

NOTE: Kelly Lane WCID 2 purchases water from Manville WSC which is required to test for simazine. Sample information shown below was taken by Manville WSC.

Date Lab ID Result
2012-02-08AB80719ND
2012-02-08AB80720ND
2012-06-14AB92870ND
2012-06-14AB92869ND
2012-11-091211331001ND
2013-02-191302607012ND
2013-02-191302607013ND
2013-02-191302607015ND
2013-02-191302607016ND
2013-02-191302607014ND
2013-05-021305112003ND
2014-03-11AC46602ND
2014-03-11AC46607ND
2015-03-19AC85444ND
2015-03-19AC854410.110 ppb
2015-03-19AC854350.130 ppb
2015-05-26AC93327ND
2015-09-22AD081060.150 ppb
2015-11-18AD14116ND
2015-11-18AD14115ND
2016-02-08AD22566ND
2016-02-08AD22587ND
2016-04-25AD34086ND
2016-04-25AD34088ND
2016-04-25AD34089ND
2016-04-25AD34090ND
2016-04-25AD34087ND
2016-09-06AD47985ND
2016-11-09AD57519ND
2016-11-09AD57518ND
2017-01-23AD66233ND
2017-01-23AD66232ND
2017-04-27AD81589ND
2017-04-27AD81592ND