Cass, NE
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 Cass in Nebraska · Population: 26,963
TRI sites such as Ash Grove Cement Co; Forterra Concrete Products - Plattsmouth; Pcs Phosphate Co Inc; SDWIS systems such as PLATTSMOUTH, CITY OF; BEAVER LAKE ASSOCIATION INC; CASS CO RWD 1 anchor Cass, NE's EPA extract. Derived burden score 37/100 (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 Cass include CASS CO RWD 2; CASS CO SID 5 - BUCCANEER BAY; LOUISVILLE, CITY OF, while Ash Grove Cement Co leads reported TRI pounds among local Form R filers. AQS median AQI 17 / peak 68 in 2024.
Burden score 37/100 (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 Cass -- 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 Cass, NE: EPA TRI 2023 reporting year
Same facilities, both years
-5.2%
2 facilities that filed in 2022 and 2023
Whole inventory
-5.2%
142.7 thousand lb → 135.3 thousand lb, every facility that filed
Between the two reporting years, 0 facilities filed for the first time and 1 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Cass, NE's total reported releases fell from 142.7 thousand lb in 2022 to 135.3 thousand lb in 2023, based on EPA TRI filings.
- Cass, NE's air releases fell from 142.7 thousand lb in 2022 to 135.3 thousand lb 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 | 259 (95%) | 15 | 0 | 68 |
| 2023 | 344 (97%) | 10 | 0 | 66 |
| 2022 | 337 (95%) | 19 | 0 | 87 |
| 2021 | 345 (98%) | 6 | 0 | 64 |
| 2020 | 346 (97%) | 12 | 0 | 71 |
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 Nebraska, see the EPA's AirNow.gov.
Water Systems (22)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| PLATTSMOUTH, CITY OF | 6,680 | 0 |
| BEAVER LAKE ASSOCIATION INC | 3,144 | 0 |
| CASS CO RWD 1 | 2,958 | 0 |
| CASS CO RWD 2 | 1,860 | 2 |
| CASS CO SID 5 - BUCCANEER BAY | 1,417 | 1 |
| LOUISVILLE, CITY OF | 1,400 | 1 |
| WEEPING WATER, CITY OF | 1,107 | 3 |
| EAGLE, VILLAGE OF | 1,065 | 1 |
| ELMWOOD, VILLAGE OF | 698 | 5 |
| GREENWOOD, VILLAGE OF | 600 | 3 |
| MURRAY, VILLAGE OF | 480 | 0 |
| CASS CO SID #1 - LAKE WA-CON-DA VILLAGE | 420 | 0 |
| MURDOCK, VILLAGE OF | 275 | 4 |
| AVOCA, VILLAGE OF | 254 | 1 |
| UNION, VILLAGE OF | 196 | 4 |
| MANLEY, VILLAGE OF | 195 | 0 |
| NEHAWKA, VILLAGE OF | 175 | 0 |
| ALVO, VILLAGE OF | 142 | 11 |
| EAGLE LAKE SUBDIVISION | 104 | 1 |
| CASS CO SID 7 - SWALLOW HILLS | 93 | 0 |
| MIDDLE ISLAND LAKE ASSOCIATION | 92 | 0 |
| RAVEN'S NEST | 70 | 0 |
TRI Facilities (3)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Ash Grove Cement Co | 665.7K lbs |
| 2 | Forterra Concrete Products - Plattsmouth | 0 lbs |
| 3 | Pcs Phosphate Co Inc | 0 lbs |
Cities in Cass (13)
Frequently Asked Questions
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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.