Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Simazine

Indiana American Water - Richmond

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.

 

58

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND140ND
20130.0625 ppb82ND - 0.430 ppb
20140.0300 ppb81ND - 0.240 ppb
2015ND140ND
2016ND60ND
2017ND80ND

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
2012-02-13155554RS525-1201ND
2012-02-13155553RS525-1201ND
2012-04-16167623RS28-1202ND
2012-04-16167627RS28-1202ND
2012-04-16167625RS28--1202ND
2012-05-16171735RS525-1202ND
2012-05-16171745RS525-1202ND
2012-07-16167628RS28-1203ND
2012-07-16167624RS28-1203ND
2012-07-16167626RS28-1203ND
2012-08-13171736RS-1203ND
2012-08-15171746RS-1203ND
2012-11-13199009RS525-1204ND
2012-11-13199006RS525-1204ND
2013-02-13207558RS525-1301ND
2013-02-13207559RS525-13010.430 ppb
2013-05-14218976RS525-13020.0700 ppb
2013-05-14218975RS525-1302ND
2013-08-12231826RS525-1303ND
2013-08-12231828RS525-1303ND
2013-11-13240514RS525-1304ND
2013-11-13240513RS525-1304ND
2014-02-10247668RS525-1401ND
2014-02-10247669RS525-14010.240 ppb
2014-05-12256299RS525-1402ND
2014-05-12256298RS525-1402ND
2014-08-12265615RS525-1403ND
2014-08-12265614RS525-1403ND
2014-11-12274883RS525-1404ND
2014-11-12274881RS525-1404ND
2015-02-09281655RS525-1501ND
2015-02-09281653RS525-1501ND
2015-04-0728647101RS28-150ND
2015-04-0728646701RS28-150ND
2015-04-0728646201RS28-150ND
2015-05-1228894401RS525-15ND
2015-05-1228894601RS525-15ND
2015-07-1539499201RS28-150ND
2015-07-1529499501RS28-150ND
2015-07-21294999RV-1503ND
2015-08-1029927801RS525-15ND
2015-08-1029927601RS-1503ND
2015-11-09305397RS525-1504ND
2015-11-09305395RS525-1504ND
2016-05-09318680RS525-1602ND
2016-05-09318682RS525-1602ND
2016-08-0932886801RS525-16ND
2016-08-0932886601RS525-16ND
2016-11-1433728301RS-1604ND
2016-11-1433728101RS-1604ND
2017-02-14345570RS525-1701ND
2017-02-14345568RS525-1701ND
2017-05-08354292RS525-1702ND
2017-05-08354290RS525-1702ND
2017-08-15365881RS525-1703ND
2017-08-15365879RS525-1703ND
2017-11-13375901RS525-1704ND
2017-11-14375899RS525-1704ND