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EWG's Tap Water Database — 2019 UPDATE

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Simazine

Emmaus Borough Public Water

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.

 

16

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
2014ND80ND
2015N/A00N/A
2016N/A00N/A
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
2014-05-27140021797ND
2014-05-27140021795ND
2014-05-27140021798ND
2014-05-27140021796ND
2014-08-2814090144-016ND
2014-08-2814090144-010ND
2014-08-2814090144-014ND
2014-08-2814090144-012ND
2017-05-2416304193ND
2017-05-2416304190ND
2017-05-2416304192ND
2017-05-2416304191ND
2017-08-3116771679ND
2017-08-3116771680ND
2017-08-3116771681ND
2017-08-3116771678ND