Know Your Environment. Protect Your Health.

Simazine

North Hunt Special Utility District

NOTE: North Hunt Special Utility District purchases water from City of Commerce which is required to test for simazine. Sample information shown below was taken by City of Commerce.

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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND20ND
2021ND20ND
2022ND20ND
2023ND20ND

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

NOTE: North Hunt Special Utility District purchases water from City of Commerce which is required to test for simazine. Sample information shown below was taken by City of Commerce.

Date Lab ID Result
2018-02-14Q1806236003ND
2018-06-04Q1822047006ND
2019-02-21Q1907743006ND
2020-08-04Q2030361003ND
2021-01-27Q2102032001ND
2021-01-27Q2102032002ND
2022-10-26Q2232338005ND
2023-02-15Q2306243007ND