EPA TRI Facility · Nonmetallic Mineral Product
Linnton
Portland, OR · Parent: Knife River Corp
- Total releases
- 296 lbs
- Chemicals reported
- 4
- Latest report
- 2023
- Primary pathway
- Off-site Transfers
OFFSITE Form-R mix
Linnton: how the 296 lbs splits
296 lbs across all reported pathways
- Off-site Transfers 296 lbs 99.9%
- Air Releases 0 lbs 0.1%
- Land Disposal 0 lbs <0.1%
Linnton's 296 lbs Form-R total is OFFSITE - off-site transfers is 99.9% of the bar. Next segment: air releases at 0.1%. Leading chemical by pounds: Nitrate compounds (water dissociable; reportable only when in aqueous solution).
TRACE volume OFFSITE pathway CLEAN
Linnton is an EPA Toxics Release Inventory reporter in Portland, OR, in the nonmetallic mineral product sector. It reported 1 lbs of releases across 1 chemical in 2023, and 296 lbs in total across its 2019-2023 reporting years. That ranks 15,381 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Oregon's 285 reporting TRI sites, pounds #1 is not chemical-count #1. Linnton is pounds #194 and chemical-count #94 at 296 lbs. Dyno Nobel- St.helens Plant leads reported pounds (32.0M lbs) at 6 chemicals (chemical-count #39). Chemical Waste Management of the Northwest Inc. leads chemical count at 56 chemicals (15.6M lbs, pounds #2). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Owens Corning Roofing & Asphalt LLC; Ash Grove Cement Co; Jr Simplot Co Rivergate Terminal; Evraz Portland. Similar-scale Nonmetallic Mineral Product peers outside Oregon: Knife River Corp N Central Forest Lake; Holcim Wcr Inc Firestone Ready Mix Plant; Holcim Wcr Inc Riverview Ready Mix Plant; U.S. Gypsum Co. Other Knife River Corp sites in this extract: Kirtland Concrete; Knife River-Madison Street; Knife River-Rice Street; Knife River Albertville Ready Mix. Largest disclosed chemicals by pounds: Nitrate compounds (water dissociable; reportable only when in aqueous solution); Lead And Lead Compounds; Lead compounds; Mercury.
Linnton stamps TRACE volume with a dominant OFFSITE pathway (99.9% off-site transfers) across 4 chemicals. Cumulative Form-R extract: 296 lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Knife River Corp N Central Forest Lake and Holcim Wcr Inc Firestone Ready Mix Plant.
Linnton vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
296 lbs 41st percentile higher than 41% of 25,986 reporting TRI facilities
Each bar is a $1M-wide band; taller bars hold more reporting TRI facilities. The dashed line and filled bar mark this facility. Hover, focus, or tap a bar for its full count, share, and position.
Source U.S. Environmental Protection Agency, Toxics Release Inventory · 2023 reporting year
Linnton in the Nonmetallic Mineral Product sector extract
Among the 3,265 Nonmetallic Mineral Product facilities in this database, Linnton reports the 770th-largest volume, placing it in the top 23.6% of its sector. Scale peers outside Oregon include Knife River Corp N Central Forest Lake and Holcim Wcr Inc Firestone Ready Mix Plant.
Sector rank uses reported TRI pounds only. Share callouts need ≥1,000 lbs so tiny totals cannot mint a false signal.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Linnton's total reported releases fell from 70 lb in 2022 to 1 lb in 2023, based on EPA TRI filings.
- Linnton's off-site transfers fell from 70 lb in 2022 to 1 lb in 2023, based on EPA TRI filings.
- Linnton's chemicals reported fell from 2 in 2022 to 1 in 2023, based on EPA TRI filings.
Linnton Form-R facts
Compare this facility
See how Linnton stacks up against nearby facilities and the typical reporter.
92% less than the comparison
About the same as the comparison
Comparison reflects reported pounds and chemical counts, not toxicity or health risk. Averages cover facilities reporting any release.
How does this facility release toxic chemicals?
How Linnton releases toxic chemicals into the environment. Total: 296 lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 99% (110 lbs to 1 lbs).
Linnton: annual Form-R pounds
TRACE site · OFFSITE pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Linnton year-over-year reported totals (decreased by 99% from 2019 to 2023). TRI figures are self-reported estimates and can swing with production, waste handling, and reporting changes, not only with controls. Lead chemical in the extract: Nitrate compounds (water dissociable; reportable only when in aqueous solution).
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 110 lbs | 2 |
| 2020 | 35 lbs | 3 |
| 2021 | 79 lbs | 3 |
| 2022 | 70 lbs | 2 |
| 2023 | 1 lbs | 1 |
Chemical Releases
Aggregated across all reporting years (2019–2023). Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 291 lbs | - |
| Lead And Lead Compounds | 4 lbs | - |
| Lead compounds | 1 lbs | - |
| Mercury | 0 lbs | - |
Linnton · OFFSITE-pathway site
Nearest TRI Facilities to Linnton
Closest other reporters in Oregon - including Owens Corning Roofing & Asphalt LLC, Ash Grove Cement Co, Jr Simplot Co Rivergate Terminal, ordered by distance.
Showing 8 of 284 other reporting facilities in Oregon.
Similar Nonmetallic Mineral Product Facilities
Other Nonmetallic Mineral Product facilities with similar total release volumes (±80%), outside Oregon - e.g. Knife River Corp N Central Forest Lake, Holcim Wcr Inc Firestone Ready Mix Plant, Holcim Wcr Inc Riverview Ready Mix Plant.
Other Knife River Corp Facilities
Same-parent TRI sites ranked by reported releases - including Kirtland Concrete, Knife River-Madison Street, Knife River-Rice Street.
About TRI Data
Data as of 2023 reporting year. Source: U.S. Environmental Protection Agency (EPA) Toxic Release Inventory.
On this page the largest disclosed chemicals include Nitrate compounds (water dissociable; reportable only when in aqueous solution), Lead And Lead Compounds, Lead compounds, Mercury; nearby reporters include Owens Corning Roofing & Asphalt LLC. Linnton stamps TRACE volume · OFFSITE pathway · CLEAN carcinogen-lbs on this Form-R extract. Totals are self-reported estimates under EPCRA §313, not measured stack emissions or a health-risk score.
Use and verify this record
This Linnton TRI extract (TRACE · OFFSITE · CLEAN · lead Nitrate compounds (water dissociable; reportable only when in aqueous solution)) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Linnton totals are self-reported EPCRA §313 estimates for Portland, OR, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 327320 · Nonmetallic Mineral Product. 0.0% of Multnomah TRI pounds in this extract. Nearest ABS peer: Eagle Comtronics Inc. (Δ 0 lbs). Pounds ≠ exposure.
Linnton stamps TRACE volume · OFFSITE pathway · CLEAN · lead Nitrate compounds (water dissociable; reportable only when in aqueous solution). PlainEnviro renders this EPA Form-R extract from its pipeline; no figure is typed in by an editor. Corrections: editorial policy.
All federal data sources used on this page
- EPA Toxics Release Inventory (TRI) Basic Data Files - annual self-reported chemical-release filings. epa.gov
- EPA TRI Program reference - how chemicals and reported releases are counted. epa.gov
- EPA Facility Registry Service - facility location and identity. epa.gov
- EPA ECHO - regulatory and compliance context. epa.gov
- EPA Envirofacts - the EPA data warehouse exposing these datasets. epa.gov