The Power of Information

National Drinking Water Database

Simazine in Indiana

Simazine is a widely used herbicide that has been associated with endocrine disruption and cancer in experimental studies. [read more]

The Most Polluted Communities in Indiana

18 water utilities reported detecting Simazine in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Simazine level

RankSystem Population Served Positive test results of total reported tests Average Level
1Lake Santee Rwwd
Greensburg, IN
1,42810 of 220.37 ppb
(0 to 3.9 ppb)
2Oakland City Water Department
Oakland City, IN
2,8008 of 140.31 ppb
(0 to 2 ppb)
3Muscatatuck Urban Training Center
Butlerville, IN
1148 of 160.31 ppb
(0 to 2 ppb)
4Springs Valley Regional Water District
West Baden, IN
3,5103 of 130.16 ppb
(0 to 0.97 ppb)
5North Vernon Water Department
North Vernon, IN
6,5001 of 130.14 ppb
(0 to 1.76 ppb)
6Westport Water Company
Westport, IN
1,60011 of 150.13 ppb
(0 to 0.44 ppb)
7Winslow Water Works
Winslow, IN
8814 of 140.11 ppb
(0 to 0.58 ppb)
8Stucker Fork Water Utility
Austin, IN
14,0004 of 220.08 ppb
(0 to 1 ppb)
9Indiana American Water - Muncie
Muncie, IN
74,9507 of 200.06 ppb
(0 to 0.28 ppb)
10Speedway Water Works
Speedway, IN
11,0701 of 140.06 ppb
(0 to 0.79 ppb)

Health Based Limits for Simazine

Maximum Contaminant Limit (MCL)The enforceable standard which defines the highest level of a contaminant that is allowed in drinking water. MCLs are set as close to health-based limits (Maximum Contaminant Level Goals, or MCLGs) as feasible using the best available analytical and treatment technologies and taking cost into consideration. Source: U.S. Environmental Protection Agency.4 ppb
Maximum Contaminant Limit Goal (MCLG)A non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.4 ppb
California Public Health GoalsDefined by the State of California Office of Environmental Health Hazard Assessment (OEHHA) as the level of contaminant that is allowed in drinking water. For acutely toxic substances, levels are set at which scientific evidence indicates that no known or anticipated adverse effects on health will occur, plus an adequate margin-of safety. PHGs for carcinogens or other substances which can cause chronic disease shall be based solely on health effects without regard to cost impacts and shall be set at levels which OEHHA has determined do not pose any significant risk to health.4 ppb
Drinking Water Equivalent LevelA lifetime exposure concentration protective of adverse, noncarcinogenic health effects, that assumes all of the exposure to a contaminant is from drinking water. Source: U.S. Environmental Protection Agency.700 ppb

Violation Summary for Simazine in Indiana

Data from the U.S. Environmental Protection Agency includes the following violations of federal standards in Indiana since 2004

Violation TypeNumber of Violations
Failure to monitor regularly46