Know Your Environment. Protect Your Health.

Simazine

City of Pilot Point

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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
2019ND40ND
2020ND10ND
2021ND50ND
2022ND10ND
2023ND10ND

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
2018-03-15Q1810838014ND
2018-03-15Q1810838015ND
2018-03-15Q1810838016ND
2018-03-15Q1810838017ND
2018-03-15Q1810838013ND
2019-04-02Q1913162011ND
2019-05-30Q1930236012ND
2019-08-08Q1953061004ND
2019-10-24Q1973669003ND
2020-01-16Q2001732023ND
2021-11-09Q2131343001ND
2021-11-09Q2131343002ND
2021-11-09Q2131343003ND
2021-11-09Q2131343004ND
2021-11-09Q2131343005ND
2022-06-21Q2217164010ND
2023-11-06Q2347478004ND