Story County, IA
The federal environmental record for Story County (population 98,566): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
0
Superfund NPL sites
8
federal cleanup sites
1
PFAS-detecting water systems
11
TRI facilities
6
open tank releases
Drinking water: PFAS testing
Public water systems serving Story 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 |
|---|---|---|
| CAMBRIDGE WATER SUPPLY IA8509069 | PFBS: 3.5 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
11 facilities in Story filed TRI reports for 2024, totalling 23k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| LINCOLNWAY ENERGY LLC | NEVADA | Acetaldehyde, n-Hexane | 17k lb |
| 3M (MINNESOTA MINING & MFG CO) - AMES | AMES | Zinc compounds | 3k lb |
| AMERICAN PACKAGING CORP | STORY CITY | Ozone, Diisocyanates | 1k lb |
| VERBIO NEVADA | NEVADA | n-Hexane, Benzene | 676 lb |
| IOWA STATE READY MIX | AMES | Lead | 603 lb |
| DANFOSS POWER SOLUTIONS (US) CO | AMES | Lead | 15 lb |
| DSM NUTRITIONAL PRODUCTS LLC | AMES | Zinc compounds | 10 lb |
| HACH CO | AMES | Mercury And Mercury Compounds | 3 lb |
| BASF CORP | AMES | - | 0 lb |
| AIR PRODUCTS & CHEMICALS INC. CO2 RECOVERY PLANT | NEVADA | - | 0 lb |
| COLORBIOTICS LLC | AMES | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 295 tank facilities in Story: 166 tanks in service and 664 closed. 146 fuel releases are on record, of which 6 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Story 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 Story, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- AMES LAB #2 - CHEM DISPOSAL SITE-DOE/ISUAMES
- PCE FORMER AMES PANTORIUMAMES
- USDA ARS IA NATIONAL ANIMAL DISEASE CENTERAMES
- VOC FORMER GIANT WASH CLEANERSAMES
- VOC FORMER IDEAL CLEANERSAMES
- VOC FORMER MERT'S NORGE CLEANERSAMES
- VOC FORMER ROYAL CLEANERSAMES
- VOC MAYFAIR CLEANERSAMES