EPA TRI Facility · Nonmetallic Mineral Product
Lafarge - Duquesne Slag
West Mifflin, PA · Parent: Holcim Participations (us) Inc.
- Total releases
- 2 lbs
- Chemicals reported
- 2
- Latest report
- 2022
- Primary pathway
- Air Releases
MIXED Form-R mix
Lafarge - Duquesne Slag: how the 2 lbs splits
2 lbs across all reported pathways
- Air Releases 1 lbs 52.6%
- Water Discharges 1 lbs 47.4%
Lafarge - Duquesne Slag's 2 lbs Form-R total is MIXED - air releases is 52.6% of the bar. Next segment: water discharges at 47.4%. Leading chemical by pounds: Lead And Lead Compounds.
TRACE volume MIXED pathway CLEAN
Lafarge - Duquesne Slag is an EPA Toxics Release Inventory reporter in West Mifflin, PA, in the nonmetallic mineral product sector. It reported 0 lbs of releases across 1 chemical in 2022, and 2 lbs in total across its 2019-2022 reporting years. That ranks 19,413 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Pennsylvania's 1,010 reporting TRI sites, pounds #1 is not chemical-count #1. Lafarge - Duquesne Slag is pounds #958 and chemical-count #769 at 2 lbs. Max Environmental -- Yukon Facility leads reported pounds (34.8M lbs) at 18 chemicals (chemical-count #24). Keystone Cement Co leads chemical count at 53 chemicals (155.4K lbs, pounds #149). Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Safety-Kleen Systems West Mifflin (wmp); Uss Mon Valley Works - Irvin Plant; Liberty Pultrusions; Db Pipe LLC. Similar-scale Nonmetallic Mineral Product peers outside Pennsylvania: Usc - Kings LLC - on Time; Minteq International Inc; Bayou Concrete LLC - Ocean Springs; Midwest Ready Mix & Building Supplies. Other Holcim Participations (us) Inc. sites in this extract: Holcim (us) Inc - Ada Plant; Holcim - Ner Inc.; Holcim - Ner Inc.; Holcim Solutions & Products. Largest disclosed chemicals by pounds: Lead And Lead Compounds; Lead compounds.
Lafarge - Duquesne Slag is a TRACE · MIXED-pathway Form-R site in West Mifflin, PA: 2 lbs across 2 chemicals. No single media clears 70% of the bar (lead segment air releases at 52.6%). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Usc - Kings LLC - on Time and Minteq International Inc.
Lafarge - Duquesne Slag vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
2 lbs 25th percentile higher than 25% 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
Lafarge - Duquesne Slag in the Nonmetallic Mineral Product sector extract
Among the 3,265 Nonmetallic Mineral Product facilities in this database, Lafarge - Duquesne Slag reports the 1,407th-largest volume (2 lbs). Scale peers outside Pennsylvania include Usc - Kings LLC - on Time and Minteq International Inc.
Sector rank uses reported TRI pounds only. Share callouts need ≥1,000 lbs so tiny totals cannot mint a false signal.
Lafarge - Duquesne Slag Form-R facts
Compare this facility
See how Lafarge - Duquesne Slag stacks up against nearby facilities and the typical reporter.
100% less than the comparison
60% less 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 Lafarge - Duquesne Slag releases toxic chemicals into the environment. Total: 2 lbs.
Emissions Trend Summary
From 2019 to 2022, total releases decreased by 74% (1 lbs to 0 lbs).
Lafarge - Duquesne Slag: annual Form-R pounds
TRACE site · MIXED pathway · TRI years 2019–2022
- 2019 0
- 2021 0
- 2022 0
What this shows Lafarge - Duquesne Slag year-over-year reported totals (decreased by 74% from 2019 to 2022). 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: Lead And Lead Compounds.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 1 lbs | 1 |
| 2021 | 1 lbs | 1 |
| 2022 | 0 lbs | 1 |
Chemical Releases
Aggregated across all reporting years (2019–2022). Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Lead And Lead Compounds | 1 lbs | - |
| Lead compounds | 1 lbs | - |
Lafarge - Duquesne Slag in Allegheny
Nearest TRI Facilities to Lafarge - Duquesne Slag
Closest other reporters in Pennsylvania - including Safety-Kleen Systems West Mifflin (wmp), Uss Mon Valley Works - Irvin Plant, Liberty Pultrusions, ordered by distance.
Showing 8 of 1,009 other reporting facilities in Pennsylvania.
Similar Nonmetallic Mineral Product Facilities
Other Nonmetallic Mineral Product facilities with similar total release volumes (±80%), outside Pennsylvania - e.g. Usc - Kings LLC - on Time, Minteq International Inc, Bayou Concrete LLC - Ocean Springs.
Other Holcim Participations (us) Inc. Facilities
Same-parent TRI sites ranked by reported releases - including Holcim (us) Inc - Ada Plant, Holcim - Ner Inc., Holcim - Ner Inc..
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 Lead And Lead Compounds, Lead compounds; nearby reporters include Safety-Kleen Systems West Mifflin (wmp). Lafarge - Duquesne Slag stamps TRACE volume · MIXED 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 Lafarge - Duquesne Slag TRI extract (TRACE · MIXED · CLEAN · lead Lead And Lead Compounds) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Lafarge - Duquesne Slag totals are self-reported EPCRA §313 estimates for West Mifflin, PA, latest year 2022. Form-R rows span 2019–2022 (3 years). NAICS 327992 · Nonmetallic Mineral Product. 0.0% of Allegheny TRI pounds in this extract. Nearest ABS peer: Atlas Roofing Corp (Δ 0 lbs). Pounds ≠ exposure.
Lafarge - Duquesne Slag stamps TRACE · MIXED pathway (air releases leads at 52.6%). Pipeline-rendered EPA Form-R only - no editor-typed pounds. 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