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EWG's Tap Water Database — 2021 UPDATE

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Simazine

Waterford Township

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.

 

12

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
2014ND10ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND110ND

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
2014-05-13LLF17814ND
2018-02-15LLH65840ND
2018-02-15LLH65841ND
2018-02-15LLH65844ND
2018-02-15LLH65842ND
2018-02-15LLH65843ND
2018-02-15LLH65839ND
2018-03-06LLH68971ND
2018-03-06LLH68970ND
2018-03-06LLH68969ND
2018-03-06LLH68968ND
2018-05-16LLH80893ND