Multnomah County, OR
The federal environmental record for Multnomah County (population 789,698): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
7
Superfund NPL sites
56
federal cleanup sites
0
PFAS-detecting water systems
56
TRI facilities
141
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Allied Plating, Inc. | Portland | deleted | 02/21/1990 |
| Bradford Island | Cascade Locks | on the NPL | 03/16/2022 |
| Gould, Inc. | Portland | deleted | 09/08/1983 |
| Harbor Oil | Portland | deleted | 09/29/2003 |
| McCormick & Baxter Creosoting Co. (Portland Plant) | Portland | on the NPL | 05/31/1994 |
| Portland Harbor | Portland | on the NPL | 12/01/2000 |
| Reynolds Metals Company | Troutdale | on the NPL | 12/16/1994 |
Drinking water: PFAS testing
No public water system serving Multnomah 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)
56 facilities in Multnomah filed TRI reports for 2024, totalling 914k lb released. The 25 largest by volume:
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| SILTRONIC CORP | PORTLAND | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Nitric acid | 393k lb |
| ONSEMI | GRESHAM | Ammonia, Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 114k lb |
| MONDELEZ GLOBAL LLC | PORTLAND | Ammonia | 66k lb |
| VIGOR INDUSTRIAL | PORTLAND | Xylene (mixed isomers), Copper compounds | 64k lb |
| MICROCHIP TECHNOLOGY INC | GRESHAM | Ammonia, Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 59k lb |
| ARCLIN SURFACES LLC | PORTLAND | Methanol, Phenol | 52k lb |
| BOEING CO OF PORTLAND | PORTLAND | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Tetrachloroethylene | 45k lb |
| ESCO GROUP | PORTLAND | Manganese And Manganese Compounds, Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) | 35k lb |
| GUNDERSON MARINE LLC | PORTLAND | Manganese | 26k lb |
| DARIGOLD - PORTLAND | PORTLAND | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Peracetic acid | 9k lb |
| HIGH PURITY PRODUCTS | PORTLAND | Nitric acid, Hydrogen fluoride | 6k lb |
| DAIMLER TRUCKS NA LLC | PORTLAND | n-Butyl alcohol, Ethylene glycol | 5k lb |
| RODDA PAINT CO | PORTLAND | Xylene (mixed isomers), Toluene | 5k lb |
| GRIFFITH RUBBER MILLS | PORTLAND | Zinc compounds | 4k lb |
| MCCALL OIL & CHEMICAL PORTLAND MARINE TERMINAL | PORTLAND | 1,2,4-Trimethylbenzene, Naphthalene | 4k lb |
| OWENS CORNING ROOFING & ASPHALT LLC | PORTLAND | Hydrogen sulfide, Polycyclic aromatic compounds | 4k lb |
| PHILLIPS 66 PORTLAND TERMINAL | PORTLAND | Xylene (mixed isomers), Toluene | 3k lb |
| SOLENIS LLC | PORTLAND | Epichlorohydrin, Formic acid | 3k lb |
| HYDRO EXTRUSION PORTLAND INC. - COATINGS DIV | PORTLAND | Toluene, Xylene (mixed isomers) | 3k lb |
| TARR ACQUISITION LLC | PORTLAND | Methanol, Toluene | 3k lb |
| CHEVRON WILLBRIDGE TERMINAL | PORTLAND | Xylene (mixed isomers), Toluene | 3k lb |
| SHELL PORTLAND DISTRIBUTION TERMINAL | PORTLAND | Ethylene, Toluene | 2k lb |
| EAST SIDE PLATING INC PLANTS 1-3 | PORTLAND | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Nitric acid | 2k lb |
| ZINKPOWER PORTLAND LLC | PORTLAND | Zinc compounds | 2k lb |
| LACAMAS LABORATORIES INC | PORTLAND | Dichloromethane, Methyl tert-butyl ether | 1k lb |
Underground fuel tanks
EPA's UST Finder records 1,930 tank facilities in Multnomah: 862 tanks in service and 5,198 closed. 1,743 fuel releases are on record, of which 141 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Multnomah as Zone 2, moderate predicted indoor radon (2 to 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 Multnomah, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- 2812 SE 115TH AVENUE RESIDENTIAL LEAD REMOVALPORTLAND
- ACME RADIATOR (FORMER)TROUTDALE
- ALLIED PLATING, INC.PORTLAND
- APEX AUTOPORTLAND
- BLUE RIBBON CLEANERS SITEPORTLAND
- BOEING COMPANY (THE)PORTLAND
- BRADFORD ISLANDCASCADE LOCKS
- CASCADE CORPORATIONFAIRVIEW
- CATHEDRAL PARKPORTLAND
- CHRISTENSON WAREHOUSEPORTLAND
- COLOR GLASS PORTLANDPORTLAND
- CROSBY & OVERTONPORTLAND
- DRUM RECOVERYPORTLAND
- ECONOMY AUTO PARTSPORTLAND
- GOODYEAR DISTRIBUTION CENTER (FORMER)PORTLAND
- GOULDPORTLAND
- GRESHAM FIRE TRAINING CENTERGRESHAM
- HARBOR OIL INC.PORTLAND
- KINDER MORGAN LIQUIDS TERMINALS LLCPORTLAND
- LIBBY MCNEIL & LIBBYPORTLAND
- MCCORMICK & BAXTER CREOSOTING CO. (PORTLAND PLANT)PORTLAND
- MERIT OIL FUEL PROCESSORSPORTLAND
- NE PORTLAND MERCURYPORTLAND
- NORTHEAST PORTLAND JUNKYARD FIREPORTLAND
- NORTHWEST RETREADERSPORTLAND
- PACIFIC CARBIDE & ALLOYS CO.PORTLAND
- PARKROSE K-MART FIRE ASBESTOS RELEASEPORTLAND
- PELLA VINYL PORTLAND OPERATIONSPORTLAND
- PIER 99 - PORTLANDPORTLAND
- PORT OF PORTLAND-SHIP REPAIR YARDPORTLAND
- PORTLAND HARBORPORTLAND
- PORTLAND INTERNATIONAL AIRPORTPORTLAND
- PORTLAND RESIDENCE MERCURY SPILLPORTLAND
- PORTLAND, CY OF, ST JOHNS LDFLPORTLAND
- REYNOLDS METALS COMPANYTROUTDALE
- RIVER STREET WAREHOUSE FIREPORTLAND
- ROSE AUTO WRECKINGPORTLAND
- SE STARK ST. MERCURY SPILL RESPONSEPORTLAND
- SOLENIS LLCPORTLAND
- SOUTH RIVERGATE PONDPORTLAND
- SPRINGDALE MERCURY SPILLTROUTDALE
- SUNDIAL MARINE CONSTRUCTION & REPAIRTROUTDALE
- SWIFT ADHESIVESPORTLAND
- SWIFT ADHESIVESPORTLAND
- TACOMA STREET OVERPASSPORTLAND
- UNITED MEDICAL LABORATORYPORTLAND
- US ARMY COE - PORTLAND MOORINGSPORTLAND
- USACE DIVISION MATERIALS LABTROUTDALE
- USAF ANG PORTLAND BASEPORTLAND
- USCG STATION PORTLANDPORTLAND
- USDA FS MT. HOOD NF:BORROW PITBRIDAL VEIL
- USDA FS MT. HOOD NF:SITE BBRIDAL VEIL
- USDOE BPA TROUTDALE SUBSTATIONTROUTDALE
- USDOE-BPA ST JOHN SUBSTATION: SOUTH RIVERGATE PONDPORTLAND
- VA PORTLAND HEALTHCARE SYSTEMPORTLAND
- ZENITH ENERGY TERMINALS HOLDINGS LLC - PORTLAND TERMINALPORTLAND