Johnson, KS
Transparent derived index from EPA TRI / SDWIS / Superfund extracts: not an official EPA rating. Fixed caps: facilities ≤25 pts (50+ = max), log10 releases ≤25 pts, Superfund ≤25 pts (5/site), health-violation systems ≤15 pts (3/system), high-chemical facilities ≤10 pts. Bands: High ≥60, Moderate ≥30. See methodology.
Environmental data for Johnson in Kansas · Population: 614,764
TRI sites such as Kocher + Beck USA LP; Universal Engraving Inc; Exxonmobil Olathe Grease Plant; SDWIS systems such as OLATHE, CITY OF; GARDNER, CITY OF; JOHNSON CO RWD 7; NPL sites such as Chemical Commodities, Inc.; Doepke Disposal (Holliday) anchor Johnson, KS's EPA extract. Derived burden score 48/100 (Moderate Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Health-flagged SDWIS rows in Johnson include CREST MOBILE ESTATES MHP, while Kocher + Beck USA LP leads reported TRI pounds among local Form R filers. AQS median AQI 44 / peak 80 in 2024.
Burden score 48/100 (Moderate Risk) is the only weighted composite on this page. The tables below list every TRI facility, SDWIS system, and Superfund site EPA has on record for Johnson -- not just the names called out above -- reproducing the disclosure history as filed, not a current-safety verdict. Extract current as of 2026-08-25.
Release-over-release change
What changed for Johnson, KS: EPA TRI 2023 reporting year
Same facilities, both years
-58.9%
24 facilities that filed in 2022 and 2023
Whole inventory
-59.1%
61.2 thousand lb → 25.0 thousand lb, every facility that filed
Between the two reporting years, 0 facilities filed for the first time and 4 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Johnson, KS's total reported releases fell from 60.8 thousand lb in 2022 to 25.0 thousand lb in 2023, based on EPA TRI filings.
- Johnson, KS's land releases rose from 24 lb in 2022 to 808 lb in 2023, based on EPA TRI filings.
- Johnson, KS's off-site transfers fell from 58.4 thousand lb in 2022 to 21.6 thousand lb in 2023, based on EPA TRI filings.
- Johnson, KS's chemicals reported rose from 21 in 2022 to 25 in 2023, based on EPA TRI filings.
Air Quality History (2020–2024)
EPA Air Quality Index (AQI) data showing how many days per year fall into each air quality category.
| Year | Good | Moderate | Unhealthy (SG) | Max AQI |
|---|---|---|---|---|
| 2024 | 257 (70%) | 109 | 0 | 80 |
| 2023 | 189 (52%) | 166 | 7 | 165 |
| 2022 | 227 (62%) | 137 | 1 | 115 |
| 2021 | 207 (57%) | 153 | 4 | 138 |
| 2020 | 250 (68%) | 114 | 1 | 117 |
Source: EPA Air Quality System (AQS) Annual AQI by County AQI categories: Good (0-50), Moderate (51-100), Unhealthy for Sensitive Groups (101-150), Unhealthy (151-200), Very Unhealthy (201-300), Hazardous (301+)
For real-time air quality readings and pollutant breakdowns in Kansas, see the EPA's AirNow.gov.
Water Systems (8)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| OLATHE, CITY OF | 143,014 | 0 |
| GARDNER, CITY OF | 23,942 | 0 |
| JOHNSON CO RWD 7 | 6,457 | 0 |
| EDGERTON, CITY OF | 1,741 | 0 |
| CLEARVIEW CITY, CITY OF | 450 | 0 |
| CREST MOBILE ESTATES MHP | 100 | 4 |
| STONE RIDGE VILLAS | 100 | 0 |
| TWIN LAKES MHP | 60 | 0 |
TRI Facilities (32)
Superfund Sites (2)
| Site Name | Status | HRS Score |
|---|---|---|
| Chemical Commodities, Inc. | NPL Site | 50.00 |
| Doepke Disposal (Holliday) | NPL Site | 47.46 |
Cities in Johnson (14)
Frequently Asked Questions
What is the environmental risk level in Johnson, Kansas? ▼
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What does this county environmental profile show?
This county environmental profile rolls up EPA Toxics Release Inventory facility reports, Safe Drinking Water Information System public-water-system filings, and Superfund National Priorities List sites for the county boundary defined by the U.S. Census Bureau. Facility counts reflect facilities with a reporting address inside the county, not where downstream environmental effects may be observed. Population figures are from the most recent Census ACS 5-year estimate. The county detail page is updated whenever the upstream EPA programs publish revised data; see the methodology page for the documented ingest cadence and the editorial choices governing how aggregations are computed.
Read our methodology - how this data is sourced, computed, and verified.