National Drinking Water Database
Speedway Water Works Utilities - Indianapolis, IN
Serves 11,070 people
Atrazine
Atrazine is an endocrine-disrupting herbicide used on corn, sugarcane and sorghum; it is associated with adverse reproductive effects and toxicity to the immune system.Testing Summary
| Contaminant | Average/ Maximum Result | Health Limit Exceeded | Legal Limit Exceeded | Testing History -Tested  -Detected  -Over Health Guidelines  -Over Legal Limit* |
|---|---|---|---|---|
| AtrazineAtrazine is an endocrine-disrupting herbicide used on corn, sugarcane and sorghum; it is associated with adverse reproductive effects and toxicity to the immune system. | 0.06 ppb 0.64 ppb | Yes 0.15 ppb | No 3 ppb |  |
| NOTE: Each dot in the above graph represents one month. * Water utilities are noted as exceeding the legal limit if any test is above the maximum contaminant level (MCL). Most MCLs are based on annual averages so exceeding the MCL for one test does not necessarily indicate that the system is out of compliance. | ||||
Health Based and Legal Limits for Atrazine
Health Based Limits for Atrazine
| Standard | Description | Level |
|---|---|---|
| California Public Health Goals | Defined 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. | 0.15 ppb |
| 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. | 3 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. | 3 ppb |
| Drinking Water Equivalent Level | A 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 |
Testing Results
| Testing Date | Average Result | Samples taken that day | Number of Non-Detects | Range of Results |
|---|---|---|---|---|
| 2009-05-26 | 0 ppb | 1 | 1 | 0 ppb |
| 2009-05-13 | 0 ppb | 2 | 2 | 0 ppb |
| 2009-05-12 | 0 ppb | 1 | 1 | 0 ppb |
| 2008-08-14 | 0 ppb | 1 | 1 | 0 ppb |
| 2008-05-14 | 0 ppb | 1 | 1 | 0 ppb |
| 2008-03-17 | 0 ppb | 1 | 1 | 0 ppb |
| 2007-11-14 | 0 ppb | 1 | 1 | 0 ppb |
| 2007-08-15 | 0 ppb | 1 | 1 | 0 ppb |
| 2007-05-14 | 0 ppb | 1 | 1 | 0 ppb |
| 2007-03-15 | 0 ppb | 1 | 1 | 0 ppb |
| 2006-11-06 | 0.64 ppb | 1 | 0 | 0.64 ppb |
| 2006-08-07 | 0 ppb | 2 | 2 | 0 ppb |
| 2006-05-08 | 0 ppb | 1 | 1 | 0 ppb |
| 2006-05-02 | 0 ppb | 1 | 1 | 0 ppb |
| 2005-11-08 | 0.52 ppb | 1 | 0 | 0.52 ppb |
| 2004-07-19 | 0 ppb | 1 | 1 | 0 ppb |
| 2004-04-27 | 0 ppb | 1 | 1 | 0 ppb |
| 2004-03-17 | 0 ppb | 1 | 1 | 0 ppb |