Know Your Environment. Protect Your Health.

Simazine

Sutton Hills Estates

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020ND10ND
2021ND50ND
2022ND40ND
2023ND40ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2020-12-17Q2050011001ND
2021-01-19Q2101202001ND
2021-03-25Q2107777001ND
2021-06-17Q2115904001ND
2021-09-20Q2125630001ND
2021-12-01Q2133443001ND
2022-03-17Q2208988001ND
2022-05-25Q2215181001ND
2022-08-16Q2224011002ND
2022-11-01Q2232969001ND
2023-01-31Q2304325003ND
2023-04-24Q2315234001ND
2023-08-16Q2334338001ND
2023-11-06Q2347417001ND