Sumner, 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 Sumner in Kansas · Population: 22,386
TRI sites such as Kansas Castings; Tect Aerospace - Wellington; SDWIS systems such as WELLINGTON, CITY OF; MULVANE, CITY OF; SEDGWICK CO RWD 3 anchor Sumner, KS's EPA extract. Derived burden score 21/100 (Low 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 Sumner include WELLINGTON, CITY OF; BELLE PLAINE, CITY OF; CONWAY SPRINGS, CITY OF, while Kansas Castings leads reported TRI pounds among local Form R filers. AQS median AQI 44 / peak 196 in 2024.
Burden score 21/100 (Low 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 Sumner -- 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.
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 | 232 (64%) | 127 | 2 | 196 |
| 2023 | 179 (49%) | 182 | 3 | 152 |
| 2022 | 197 (54%) | 165 | 3 | 115 |
| 2021 | 167 (46%) | 194 | 4 | 147 |
| 2020 | 231 (63%) | 132 | 3 | 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 (17)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| WELLINGTON, CITY OF | 7,664 | 1 |
| MULVANE, CITY OF | 6,587 | 0 |
| SEDGWICK CO RWD 3 | 6,045 | 0 |
| BELLE PLAINE, CITY OF | 1,468 | 38 |
| SUMNER CO RWD 5 | 1,429 | 0 |
| CONWAY SPRINGS, CITY OF | 1,106 | 23 |
| OXFORD, CITY OF | 1,048 | 0 |
| CALDWELL, CITY OF | 1,019 | 0 |
| SUMNER CO RWD 2 | 490 | 0 |
| ARGONIA, CITY OF | 455 | 66 |
| SOUTH HAVEN, CITY OF | 325 | 0 |
| SUMNER CO RWD 6 | 298 | 0 |
| SUMNER CO RWD 1 | 280 | 1 |
| GEUDA SPRINGS, CITY OF | 151 | 1 |
| SUMNER CO RWD 3 | 80 | 4 |
| MAYFIELD, CITY OF | 74 | 0 |
| PRAIRIE SCHOONER MOBILE HOME COURT | 50 | 3 |
TRI Facilities (2)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Kansas Castings | 37 lbs |
| 2 | Tect Aerospace - Wellington | 2 lbs |
Cities in Sumner (10)
Frequently Asked Questions
What is the environmental risk level in Sumner, 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.