Linn, OR
A PlainEnviro-computed score from reported facility/violation counts, not an official EPA rating, health forecast, or population-adjusted rate. See methodology. This is a different measure than the EJ Screening score for this county, which ranks it by percentile against every other tracked county rather than against fixed national thresholds.
Environmental data for Linn in Oregon · Population: 129,794
Linn, OR is tracked across three EPA datasets covering 18 Toxics Release Inventory (TRI) facilities, 40 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 52/100 (Moderate Risk), calibrated against national distributions for facility density, chemical release volume, Superfund concentration, and water-system health violations.
Industrial disclosures inside the county total 15.4M lbs of reported toxic releases under EPCRA Section 313, while 12 water systems carry an active health-based violation in the SDWIS record. EPA Air Quality System monitors logged a median AQI of 25 and a peak AQI of 86 in 2024, with 87% of observed days rated "Good" (0–50).
All figures below draw directly from federal EPA records, TRI self-reported emissions, SDWIS compliance history, NPL Hazard Ranking System scores, and AQS daily AQI summaries, and are not adjusted, weighted, or forecast. A past violation or elevated score does not itself indicate current unsafe conditions; it documents the regulatory and disclosure history publicly filed with the U.S. Environmental Protection Agency through the most recent reporting cycle.
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 | 320 (87%) | 46 | 0 | 86 |
| 2023 | 278 (76%) | 83 | 4 | 125 |
| 2022 | 254 (70%) | 109 | 2 | 127 |
| 2021 | 268 (73%) | 96 | 1 | 136 |
| 2020 | 245 (67%) | 110 | 0 | 853 |
Source: EPA Air Quality System (AQS) Annual AQI by County 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 Oregon, see the EPA's AirNow.gov.
Water Systems (40)
| System | Population | Violations |
|---|---|---|
| ALBANY, CITY OF | 57,997 | 0 |
| LEBANON, CITY OF | 18,945 | 0 |
| SWEET HOME, CITY OF | 10,322 | 0 |
| SISTERS, CITY OF | 3,778 | 0 |
| HARRISBURG, CITY OF | 3,684 | 2 |
| CITY OF MILLERSBURG | 2,615 | 0 |
| BROWNSVILLE, CITY OF | 1,906 | 2 |
| MILL CITY WATER DEPARTMENT | 1,830 | 0 |
| SCIO, CITY OF | 900 | 2 |
| TOLLGATE WATER COMPANY | 800 | 0 |
| HALSEY, CITY OF | 800 | 0 |
| BLACK BUTTE RANCH CORPORATION | 740 | 0 |
| MONROE, CITY OF | 723 | 101 |
| INDIAN MEADOW WATER COMPANY | 500 | 1 |
| SODAVILLE, CITY OF | 320 | 0 |
| SCRAVEL HILL WATER CO-OP | 300 | 0 |
| LAKE CREEK RANCH MHC | 300 | 0 |
| LONE OAK ESTATES | 258 | 0 |
| WESLINN WATER COMPANY | 200 | 0 |
| TWIN CEDARS MHP | 200 | 0 |
| IDANHA CITY WATER | 168 | 4 |
| FIR VIEW WATER COMPANY | 150 | 0 |
| CAMELOT MOBILE HOME PARK | 150 | 1 |
| SANTIAM VILLAGE | 150 | 0 |
| ASPEN LAKES UTILITY CO LLC | 150 | 0 |
| OAKVILLA MOBILE HOME PARK | 140 | 0 |
| ALBANY TRAILER AND RV PARK, LLC | 130 | 3 |
| REDWOOD WATER SERVICE INC | 125 | 0 |
| LAWRENCE SUBDIVISION WTR ASSN | 125 | 1 |
| GRAND PRAIRIE WATER SUPPLY CO | 110 | 0 |
| AMIGO VILLA WATER SERVICE INC | 100 | 0 |
| SNO-CAP WATER SYSTEM | 90 | 3 |
| HAFEZ WATER SYSTEM | 78 | 0 |
| MEADOW WOOD ESTATES | 60 | 0 |
| OAKWOOD WATER SYSTEM INC | 55 | 0 |
| CENTURY FARM COURT | 42 | 0 |
| SCIO MOBILE VILLAGE | 40 | 1 |
| OLD CHURCH ROAD ESTATES | 35 | 0 |
| HARMONY ACRES MOBILE PARK | 31 | 1 |
| RIM AT ASPEN LAKES | 31 | 0 |
TRI Facilities (18)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Cascade Pacific Pulp Halsey Pulp Mill | 5.3M lbs |
| 2 | Pacific Cast Technologies Inc | 4.5M lbs |
| 3 | Ati Specialty Alloys & Components LLC | 3.1M lbs |
| 4 | W.r. Grace & Co. | 1.0M lbs |
| 5 | Georgia-Pacific Consumer Operations LLC | 480.7K lbs |
| 6 | Arauco N.a. Inc. - Duraflake Particleboard | 469.2K lbs |
| 7 | Entek International LLC | 228.4K lbs |
| 8 | Selmet Inc | 182.1K lbs |
| 9 | Bakelite Chemicals LLC | 62.0K lbs |
| 10 | Highline Warren - Albany | 31.4K lbs |
| 11 | Ati Albany Operations Facility | 1.8K lbs |
| 12 | Steelfab of Oregon | 543 lbs |
| 13 | Harrisburg Ps | 217 lbs |
| 14 | Corvallis Asphalt | 6 lbs |
| 15 | Weddle Concrete | 1 lbs |
| 16 | Clayton Albany | 0 lbs |
| 17 | Palm Harbor Homes Inc | 0 lbs |
| 18 | Research Mannikins Inc | 0 lbs |
Cities in Linn (6)
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.