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Review government records associated with Ann Arbor, Michigan. Open a section to see source records, coverage and dates. These city-level results do not establish exposure at a home or identify your water provider.
Toxin Scout summarizes public records from government and public datasets. Data can be delayed, incomplete, approximate, matched at non-parcel levels, or have accuracy problems as a result of this product's beta status, so verify important findings against the linked source records.
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Preparing Ann Arbor environmental records...
Counts describe the records shown, not a complete city inventory. Some sources include nearby locations.
Drinking water compliance, PFAS records, natural water body health, discharge permits, and water-quality monitoring records for Ann Arbor.
Public water-system records for Ann Arbor, MI from EPA SDWIS.
Ann Arbor
PFAS detected below the official threshold used by this report.
Reviewed: active/open records as of Q1 2026
City listed in EPA records · Serves 123,851 people
Data from EPA SDWIS
PFAS screening separates EPA UCMR5 drinking-water monitoring from nearby DoD PFAS investigation-site records; EPA samples shown are from Mar 2023 to Sep 2023.
Drinking Water PFAS Monitoring
EPA UCMR5 samples public water systems. These results are separate from nearby PFAS cleanup or investigation-site records.
PFAS detections below EPA limits.
Nearby PFAS Investigation Sites
DoD records are nearby site investigations, not Ann Arbor drinking-water detections. Record names come from the source database and can be broad.
No DoD PFAS investigation records shown for this report.
Water Body Impairment (ATTAINS) city records are temporarily unavailable.
NPDES permits regulate pollutant discharges into U.S. waterways. Facilities must report compliance quarterly.
No NPDES-permitted facility records with violations surfaced for this city report.
Reviewed: active/open records as of Q4 2025
Data from EPA ECHO
Reviewed: source records as of 2026
Air quality data from EPA monitoring stations, facility emissions inventories, and area-level air-quality designations in this city.
Washtenaw County
Reported: Dec 2020
EPA national average is ~30 per million
According to EPA, a cancer risk of 30-in-1-million means that for every 1 million people continuously exposed to these air toxics over a 70-year lifetime, an estimated 30 may develop cancer from that exposure. This is in addition to cancer risk from all other causes.
Top local emission sources
Data from EPA AirToxScreen
Air Quality Nonattainment Areas city records are temporarily unavailable.
6792 Raisin Center Hwy, Lenawee Co.Rd.Comm.Owner, Tecumseh
Annual mean: 0.044 ppm · EPA standard: 0.07 ppm
Reported: 2024
Annual mean: 7.0 μg/m³ · EPA standard: 9 μg/m³
Reported: 2024
Ann Arbor
Annual mean: 0.042 ppm · EPA standard: 0.07 ppm
Reported: 2024
Data from EPA AQS
Facilities regulated under the Clean Air Act. CAA HPV flags indicate serious noncompliance such as exceeding emission limits.
No facility records with active violation or noncompliance flags surfaced in EPA ECHO.
Reviewed: active/open records as of Q4 2025
Data from EPA ECHO
TRI releases are self-reported annual totals (calendar year 2024). Hover fugitive or stack for definitions.
Cadillac Asphalt LLC - Ann Arbor
Reported: 2024
Cayman Chemical Co Inc.
Reported: 2024
Contaminated sites, waste facilities, cleanup records, and industrial operations in this city.
Sites listed on the National Priorities List (NPL) where releases or threatened releases of hazardous substances may endanger public health or the environment, as designated under CERCLA.
Open data source: Search EPA ECHO· 110003579896
Reported: May 2024
Brownfield sites are properties where redevelopment is complicated by the presence of hazardous substances.
Open data source: Search EPA ECHO3 sites with active cleanup or investigation status
1012 Pontiac Trail, Ann Arbor
Reported: Feb 2026
1140 Broadway, Ann Arbor
Reported: Feb 2026
121 East Catherine Street, Ann Arbor
Reported: Feb 2026
Facilities with hazardous-waste handler records under RCRA in the reviewed 5-mile city-center search area. Active handler status is separate from air, water, or other ECHO compliance violations, which are shown in their own sections.
Active RCRA handler records in the reviewed city search area
No release reports shown in this group.
Reviewed: active/open records as of 2018
Data from EPA UST Finder
Reviewed: reporting year 2024
Formerly Used Defense Sites are properties previously owned by, leased to, or otherwise possessed by the United States and under the jurisdiction of the Secretary of Defense. The FUDS program addresses environmental restoration at these properties.
Open data source: USACE FUDSReported: Oct 2026
Reported: Oct 2026
Reported: Oct 2026
No MSHA mine or extraction site records shown for this report.
Washtenaw County, MI
Reported: Mar 2026
Washtenaw County is EPA Radon Zone 1 (highest potential). EPA defines Zone 1 counties as having predicted average indoor screening levels above 4 pCi/L.
Radon levels can vary from home to home, so EPA recommends testing the property to know its indoor level.
Flood-map status, chemical accident risk, nuclear facilities, pipeline incidents, and community health indicators in this city.
No FEMA flood-zone records shown for this report.
Risk Management Program records cover listed chemicals above EPA thresholds. Records may include historical registrations and do not confirm current operations or current chemical inventories.
Accident history is not established by these EPA ECHO facility records.
Reviewed: source records as of Q1 2026
Data from EPA ECHO
Reviewed: 2000-present
Health outcomes from County Health Rankings. Values shown alongside state and national averages.
Washtenaw County, MichiganPop. 366,376
Reported: Mar 2026
Premature Death
Poor or Fair Health
Poor Physical Health Days
Poor Mental Health Days
Adult Smoking
Adult Obesity
Air Pollution - Particulate Matter
Drinking Water Violations
Diabetes Prevalence
Life Expectancy
| Indicator | County | State | National |
|---|---|---|---|
| Premature Death | 5,624 | 8,468 | 7,972 |
| Poor or Fair Health | 11.6% | 15.2% | 14.2% |
| Poor Physical Health Days | 3.0 | 3.6 | 3.3 |
| Poor Mental Health Days | 5.2 | 5.3 | 4.8 |
| Adult Smoking | 11.6% | 17.9% | 15.0% |
| Adult Obesity | 28.7% | 34.6% | 34.0% |
| Air Pollution - Particulate Matter | 8.7 | 6.8 | 7.3 |
| Drinking Water Violations | 0 | 0 | N/A |
| Diabetes Prevalence | 8.1% | 9.3% | 9.6% |
| Life Expectancy | 80.4 | 76.6 | 77.6 |