Cass County, NE
The federal environmental record for Cass County (population 27,446): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
0
Superfund NPL sites
1
federal cleanup sites
1
PFAS-detecting water systems
2
TRI facilities
6
open tank releases
Drinking water: PFAS testing
Public water systems serving Cass with at least one PFAS detection under UCMR5. The federal limit for PFOA and PFOS is 4 ng/L; EPA proposed in May 2026 to rescind the limits for the other compounds, which are shown for information.
| System | Highest results | Reading |
|---|---|---|
| PLATTSMOUTH, CITY OF NE3102501 | PFOS: 18.5 ng/L PFHxS: 7.1 ng/L | above final limit |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
2 facilities in Cass filed TRI reports for 2024, totalling 127k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| ASH GROVE CEMENT CO | LOUISVILLE | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Ammonia | 127k lb |
| PCS PHOSPHATE CO INC | WEEPING WATER | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 31 tank facilities in Cass: 90 tanks in service and 11 closed. 103 fuel releases are on record, of which 6 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Cass as Zone 1, the highest predicted indoor radon levels (over 4 pCi/L average). Radon and air quality are covered in depth on lung.com.
The record for one specific address
County figures blur what matters: distance. The Address Environmental Report runs these same federal datasets against one address and reports every site, tank, polluter and water result around it, with distances, in about a minute.
Get the report - $39All federal cleanup sites on file
The wider Superfund enterprise inventory (SEMS) for Cass, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- GRAIN STORAGE BIN GW CONTAM - MURDOCKMURDOCK