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Review government records associated with De Soto, Kansas.
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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 De Soto, KS from EPA SDWIS.
Desoto, City of
Active health-based drinking-water issue detected in EPA SDWIS.
Reviewed: active/open records as of Q1 2026
City listed in EPA records · Serves 4,645 people
Olathe, City of
Active monitoring or reporting issue detected in EPA SDWIS.
Reviewed: active/open records as of Q1 2026
City-area ZIP code · Serves 143,014 people
Gardner, City of
Active monitoring or reporting issue detected in EPA SDWIS.
Reviewed: active/open records as of Q1 2026
City-area ZIP code · Serves 23,942 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 Sep 2023 to Oct 2024.
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 De Soto 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.
Wolf Creek-Kansas River
Reported: Nov 2026
Health-relevant causes: Metals (other Than Mercury), Pathogens, Pesticides
Affected uses: Ecological, 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
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.
Johnson 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.
29-095-0018 — Kansas City, Missouri
Annual mean: 30.7 Micrograms/cubic meter (25 C)
Observation year: 2025
29-095-0043 — Kansas City, Missouri
Annual mean: 0.3 Parts per million
Observation year: 2025
Annual mean: 20.1 Parts per billion
Observation year: 2025
Data from EPA AQS
Facilities regulated under the Clean Air Act. CAA HPV flags indicate serious noncompliance such as exceeding emission limits.
Air Violations
Last inspected: Dec 2025
Data from EPA ECHO
Reviewed: source records as of 2024
Reviewed: source query run Nov 2026
Brownfield sites are properties where redevelopment is complicated by the presence of hazardous substances.
Open data source: Search EPA ECHONo matching brownfield records with active cleanup or investigation status surfaced for this city report.
Reviewed: active/open records as of Q1 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
Sites regulated by the Mine Safety and Health Administration, including mines, sand and gravel operations, and portable crushers. Status and type are from the MSHA Mine Data Retrieval System. Records with active/intermittent status dates older than 5 years are shown as older records rather than current active sites.
Recently updated active/intermittent sites (1)
Data from MSHA
Johnson County, KS
EPA Radon Zone Map (June 2024 release)
Johnson 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.
No FEMA flood-zone records shown for this report.
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.
Johnson County, KansasPop. 619,195
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 | 4,774 | 8,079 | 7,972 |
| Poor or Fair Health | 9.7% | 14.2% | 14.2% |
| Poor Physical Health Days | 2.4 | 3.2 | 3.3 |
| Poor Mental Health Days | 4.1 | 5.0 | 4.8 |
| Adult Smoking | 10.0% | 16.4% | 15.0% |
| Adult Obesity | 29.2% | 36.7% | 34.0% |
| Air Pollution - Particulate Matter | 6.2 | 6.7 | 7.3 |
| Drinking water violation indicator | No | N/A | N/A |
| Diabetes Prevalence | 7.1% | 10.0% | 9.6% |
| Life Expectancy | 80.9 | 77.0 | 77.6 |
EPA testing found PFAS in water samples from the City of Desoto. Results dated Oct 1, 2024 include PFBS at 0.0031 micrograms per liter.
EPA testing found PFAS in water samples from the City of Gardner. Results dated Sep 18, 2023 to Dec 5, 2023 include PFPeA at 0.0034 micrograms per liter.
Check with the utility that serves your address for its testing results.
EPA drinking water records on this page list 14 violations for the City of Desoto, including 3 marked active.
EPA drinking water records on this page list 9 violations for the City of Olathe.
EPA drinking water records on this page list 7 violations for the City of Gardner.
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 De Soto.
The monitoring station at 29-095-0018, Kansas City, Missouri recorded an annual average of 30.7 Micrograms/cubic meter (25 C) for particles (PM10) in 2025.
The monitoring station at 29-095-0043, Kansas City, Missouri recorded an annual average of 0.3 Parts per million for carbon monoxide in 2025.
The monitoring station at 29-095-0043, Kansas City, Missouri recorded an annual average of 20.1 Parts per billion for nitrogen dioxide in 2025.
Download 2025 EPA annual monitor dataCurrent air quality on AirNow
The radon data for De Soto covers Johnson County. EPA places this area in Zone 1, with a predicted average indoor radon screening level above 4 picocuries per liter.
No Superfund sites were returned for this city report.
This city report shows 1 brownfield site: De Soto Boat Ramp.
The county data for De Soto reports a life expectancy of 80.9 years in Johnson County, Kansas.
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 De Soto reports 4,774 years of life lost to deaths before age 75 per 100,000 residents in Johnson County, Kansas. 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 De Soto lists fine-particle pollution (PM2.5) at 6.2 micrograms per cubic meter in Johnson County, Kansas.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.