Johnson County, IA
The federal environmental record for Johnson County (population 157,528): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
0
Superfund NPL sites
6
federal cleanup sites
0
PFAS-detecting water systems
6
TRI facilities
9
open tank releases
Drinking water: PFAS testing
No public water system serving Johnson reported a PFAS detection in the UCMR5 national testing round. Systems serving under 3,300 people were only sampled in part, so absence from this table is not proof of absence in the water.
Facilities reporting toxic releases (2024)
6 facilities in Johnson filed TRI reports for 2024, totalling 52k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| LOPAREX LLC | IOWA CITY | Toluene, Ethylbenzene | 27k lb |
| PROCTER & GAMBLE HAIR CARE LLC | IOWA CITY | Zinc compounds, Selenium compounds | 17k lb |
| INTEGRATED DNA TECHNOLOGIES | CORALVILLE | Acetonitrile, Dichloromethane | 8k lb |
| ROCKWELL COLLINS INC CORALVILLE OPERATIONS | CORALVILLE | Lead | 1 lb |
| HUBBARD FEEDS INC | IOWA CITY | - | 0 lb |
| P&G IOWA CITY POWER ORAL CARE | IOWA CITY | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 308 tank facilities in Johnson: 213 tanks in service and 659 closed. 141 fuel releases are on record, of which 9 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Johnson 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 Johnson, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- FORMER BIG B 1 HOUR CLEANERSIOWA CITY
- FORMER UNIQUE CLEANERSIOWA CITY
- IOWA CITY FMGPIOWA CITY
- KALONA CREAMERY, LLCKALONA
- VOC DODGE CLEANERS RAC MAILIOWA CITY
- VOC VARSITY CLEANERSIOWA CITY