Know Your Environment. Protect Your Health.

Simazine

City of Sanger

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND80ND
2019ND10ND
2020ND10ND
2021ND60ND
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
2018-01-10Q1801330009ND
2018-01-10Q1801330010ND
2018-01-10Q1801330011ND
2018-01-10Q1801330012ND
2018-01-31Q1804070001ND
2018-04-10Q1814606001ND
2018-04-10Q1814606009ND
2018-04-10Q1814606010ND
2019-01-09Q1901596014ND
2020-05-11Q2018214005ND
2021-01-20Q2101423001ND
2021-01-20Q2101423002ND
2021-01-20Q2101423009ND
2021-11-08Q2131197001ND
2021-11-08Q2131197002ND
2021-11-08Q2131197003ND
2022-02-08Q2204312001ND
2023-02-28Q2307983003ND