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Review government records associated with Monona, Wisconsin.
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Check your water bill for your utility name and confirm the reporting year. See EPA’s guide to finding your annual water quality report.
Public water-system records for Monona, WI from EPA SDWIS.
Monona Waterworks
PFAS detected below the official threshold used by this report.
Reviewed: active/open records as of Q1 2026
City listed in EPA records · Serves 8,624 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 Jun 2025.
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 Monona drinking-water detections. Record names come from the source database and can be broad.
No DoD PFAS investigation records shown for this report.
EPA ATTAINS records identify assessed water bodies that do not meet water-quality standards for designated uses.
Lake Monona-Yahara River
Reported: Nov 2026
Health-relevant causes: Pathogens, Per- And Polyfluoroalkyl Substances (pfas), Polychlorinated Biphenyls (pcbs)
Affected uses: Ecological, Fishconsumption, Recreation
Data from EPA ATTAINS
NPDES permits regulate pollutant discharges into U.S. waterways. Facilities must report compliance quarterly.
Violation records
Last inspected: Dec 2025
Last inspected: Dec 2025
Data from EPA ECHO
To investigate water contamination, check the sampling locations, dates and results below. For tap water records, see Drinking water quality above.
Reviewed: source records as of 2026
Review historical EPA air pollution records, including monitoring and facility emissions where available. For current conditions, check local air quality on AirNow.
Dane County
Assessment year: 2020
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 modeled source groups
Data from EPA AirToxScreen
No EPA nonattainment designation records shown for this report.
EPA annual monitor summaries describe past measurements. For current air quality, see AirNow.
Columbus
Annual mean: 0.043 Parts per million
EPA primary exceedance count: 1 (Ozone 8-hour 2015)
Observation year: 2025
Madison - University Ave Well #6
Annual mean: 16.9 Micrograms/cubic meter (25 C)
Observation year: 2025
Annual mean: 8.4 Micrograms/cubic meter (LC)
Observation year: 2025
Data from EPA AQS
Reviewed: source records as of Q4 2025
TRI releases are self-reported annual totals (calendar year 2024). Hover fugitive or stack for definitions.
Boumatic LLC
Reported: 2024
Danisco Usa Inc
Reported: 2024
Flint Hills Resources Pine Bend LLC Mcfarland Terminal
Reported: 2024
EPA records for current, proposed and formerly listed Superfund sites on the National Priorities List (NPL).
Open data source: Search EPA ECHOEPA FRS Registry ID 110005512276
Reported: Nov 2021
Brownfield sites are properties where redevelopment is complicated by the presence of hazardous substances.
Open data source: Search EPA ECHO1 site with active cleanup or investigation status
900 W Broadway, Monona
Reported: Feb 2026
No release reports shown in this group.
Reviewed: active/open records as of 2018
Data from EPA UST Finder
Reviewed: reporting year 2024
No MSHA mine or extraction site records shown for this report.
Dane County, WI
EPA Radon Zone Map (June 2024 release)
Dane 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.
FEMA flood zones describe mapped flood hazards. Look up a specific address with FEMA.
Minimal flood hazard — outside the 1% and 0.2% annual chance floodplains.
Results use an earlier stored RMP inventory. Current EPA ECHO location coverage is unverified.
EPA ECHO lists facilities linked to the Risk Management Program. Results include facilities with locations that can be matched. Records may be historical. Current operations, chemical inventories, and recent accident history are unverified.
Reviewed: 2000-present
Health outcomes from County Health Rankings. Values shown alongside state and national averages.
Dane County, WisconsinPop. 568,203
County Health Rankings edition: 2024
Premature Death
Poor or Fair Health
Poor Physical Health Days
Poor Mental Health Days
Adult Smoking
Adult Obesity
Air Pollution - Particulate Matter
Drinking water violation indicator
Diabetes Prevalence
Life Expectancy
| Indicator | County | State | National |
|---|---|---|---|
| Premature Death | 5,055 | 7,082 | 7,972 |
| Poor or Fair Health | 10.3% | 12.7% | 14.2% |
| Poor Physical Health Days | 2.7 | 3.1 | 3.3 |
| Poor Mental Health Days | 4.7 | 4.8 | 4.8 |
| Adult Smoking | 11.7% | 13.8% | 15.0% |
| Adult Obesity | 28.0% | 33.5% | 34.0% |
| Air Pollution - Particulate Matter | 8.8 | 7.8 | 7.3 |
| Drinking water violation indicator | Yes | N/A | N/A |
| Diabetes Prevalence | 7.0% | 7.9% | 9.6% |
| Life Expectancy | 81.2 | 78.2 | 77.6 |
EPA testing found PFAS in water samples from Monona Waterworks. Results dated Jun 17, 2025 include PFBA at 0.0061 to 0.011 micrograms per liter and PFHxS at 0.0053 to 0.0054 micrograms per liter.
Check with the utility that serves your address for its testing results.
The EPA drinking water records available here list no violations for Monona Waterworks.
Check your water bill to identify the utility serving your address. Ask that utility about current drinking water advisories.
Nearby EPA monitoring stations provide annual air quality measurements for Monona.
The monitoring station at Columbus recorded an annual average of 0.043 Parts per million for ozone in 2025.
The monitoring station at Madison-University Ave Well #6 recorded an annual average of 16.9 Micrograms/cubic meter (25 C) for particles (PM10) in 2025.
The monitoring station at Madison-University Ave Well #6 recorded an annual average of 8.4 Micrograms/cubic meter (LC) for fine particles (PM2.5) in 2025.
The radon data for Monona covers Dane County. EPA places this area in Zone 1, with a predicted average indoor radon screening level above 4 picocuries per liter.
This city report shows 1 Superfund site: Madison Metropolitan Sewerage District.
This city report shows 1 brownfield site: Monona Riverfront Redevelopment Site.
The county data for Monona reports a life expectancy of 81.2 years in Dane County, Wisconsin.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.
The county data for Monona reports 5,055 years of life lost to deaths before age 75 per 100,000 residents in Dane County, Wisconsin. This measure adds up the years lost to early deaths and adjusts for differences in population age.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.
The county data for Monona lists fine-particle pollution (PM2.5) at 8.8 micrograms per cubic meter in Dane County, Wisconsin.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.