EPA TRI Facility · Nonmetallic Mineral Product
Knife River Materials Yard
Casper, WY
- Total releases
- 58 lbs
- Chemicals reported
- 4
- Latest report
- 2023
- Primary pathway
- Land Disposal
LAND Form-R mix
Knife River Materials Yard: how the 58 lbs splits
58 lbs across all reported pathways
- Land Disposal 58 lbs 99.8%
- Air Releases 0 lbs 0.2%
Knife River Materials Yard's 58 lbs Form-R total is LAND - land disposal is 99.8% of the bar. Next segment: air releases at 0.2%. Leading chemical by pounds: Nitrate compounds (water dissociable; reportable only when in aqueous solution).
TRACE volume LAND pathway CLEAN
Knife River Materials Yard is an EPA Toxics Release Inventory reporter in Casper, WY, in the nonmetallic mineral product sector. It reported 58 lbs of releases across 3 chemicals in 2023, and 58 lbs in total across its 2021-2023 reporting years. That ranks 17,056 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Wyoming's 70 reporting TRI sites, pounds #1 is not chemical-count #1. Knife River Materials Yard is pounds #59 and chemical-count #42 at 58 lbs. Dyno Nobel Inc-Cheyenne Plant leads reported pounds (27.1M lbs) at 8 chemicals (chemical-count #19). Hf Sinclair Parco Refining LLC leads chemical count at 36 chemicals (1.5M lbs, pounds #10). Reported volume rose against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Custom Fiberglass Inc; Excal Inc.; Truenorth Steel-Casper; Knife River Casper. Similar-scale Nonmetallic Mineral Product peers outside Wyoming: Gold Bond Building Products - Westwego; Pomona Plant 5; St. Marys Cement U.S. LLC; Certainteed Gypsum. Largest disclosed chemicals by pounds: Nitrate compounds (water dissociable; reportable only when in aqueous solution); Lead And Lead Compounds; Mercury And Mercury Compounds; Lead compounds.
Knife River Materials Yard stamps TRACE volume with a dominant LAND pathway (99.8% land disposal) across 4 chemicals. Cumulative Form-R extract: 58 lbs (2021–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Gold Bond Building Products - Westwego and Pomona Plant 5.
Knife River Materials Yard vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
58 lbs 34th percentile higher than 34% 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
Knife River Materials Yard in the Nonmetallic Mineral Product sector extract
Among the 3,265 Nonmetallic Mineral Product facilities in this database, Knife River Materials Yard reports the 959th-largest volume (58 lbs). Scale peers outside Wyoming include Gold Bond Building Products - Westwego and Pomona Plant 5.
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
- Knife River Materials Yard's total reported releases rose from 0 lb in 2022 to 58 lb in 2023, based on EPA TRI filings.
- Knife River Materials Yard's land releases rose from 0 lb in 2022 to 58 lb in 2023, based on EPA TRI filings.
- Knife River Materials Yard's chemicals reported rose from 2 in 2022 to 3 in 2023, based on EPA TRI filings.
Knife River Materials Yard Form-R facts
Compare this facility
See how Knife River Materials Yard stacks up against nearby facilities and the typical reporter.
100% less than the comparison
4.0× more than 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 Knife River Materials Yard releases toxic chemicals into the environment. Total: 58 lbs.
Emissions Trend Summary
From 2021 to 2023, total releases increased by 57900% (0 lbs to 58 lbs).
Knife River Materials Yard: annual Form-R pounds
TRACE site · LAND pathway · TRI years 2021–2023
- 2021 0
- 2022 0
- 2023 0
What this shows Knife River Materials Yard year-over-year reported totals (increased by 57900% from 2021 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 |
|---|---|---|
| 2021 | 0 lbs | 1 |
| 2022 | 0 lbs | 2 |
| 2023 | 58 lbs | 3 |
Chemical Releases
Aggregated across all reporting years (2021–2023). Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 58 lbs | - |
| Lead And Lead Compounds | 0 lbs | - |
| Mercury And Mercury Compounds | 0 lbs | - |
| Lead compounds | 0 lbs | - |
Knife River Materials Yard · LAND-pathway site
Nearest TRI Facilities to Knife River Materials Yard
Closest other reporters in Wyoming - including Custom Fiberglass Inc, Excal Inc., Truenorth Steel-Casper, ordered by distance.
Showing 8 of 69 other reporting facilities in Wyoming.
Similar Nonmetallic Mineral Product Facilities
Other Nonmetallic Mineral Product facilities with similar total release volumes (±80%), outside Wyoming - e.g. Gold Bond Building Products - Westwego, Pomona Plant 5, St. Marys Cement U.S. LLC.
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, Mercury And Mercury Compounds, Lead compounds; nearby reporters include Custom Fiberglass Inc. Knife River Materials Yard stamps TRACE volume · LAND 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 Knife River Materials Yard TRI extract (TRACE · LAND · 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.
Knife River Materials Yard totals are self-reported EPCRA §313 estimates for Casper, WY, latest year 2023. Form-R rows span 2021–2023 (3 years). NAICS 327320 · Nonmetallic Mineral Product. 0.0% of Natrona TRI pounds in this extract. Nearest ABS peer: Dura-Bond Coating Inc (Δ 0 lbs). Pounds ≠ exposure.
Knife River Materials Yard stamps TRACE volume · LAND 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