EPA TRI Facility · Nonmetallic Mineral Product
Argos Knightdale Concrete Plant
Knightdale, NC · Parent: Summit Materials LLC
- Total releases
- 1 lbs
- Chemicals reported
- 1
- Carcinogens
- 1
- Primary pathway
- Air Releases
AIR Form-R mix
Argos Knightdale Concrete Plant: how the 1 lbs splits
1 lbs across all reported pathways
- Air Releases 1 lbs 100.0%
Argos Knightdale Concrete Plant's 1 lbs Form-R total is AIR - air releases is 100.0% of the bar. Off-site transfers stay separate from air, water, and land releases. Leading chemical by pounds: Lead.
TRACE volume AIR pathway CARC-HEAVY
Argos Knightdale Concrete Plant is an EPA Toxics Release Inventory reporter in Knightdale, NC, in the nonmetallic mineral product sector. It reported 0 lbs of releases across 1 chemical in 2023, and 1 lbs in total across its 2019-2023 reporting years. That ranks 20,094 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In North Carolina's 787 reporting TRI sites, pounds #1 is not chemical-count #1. Argos Knightdale Concrete Plant is pounds #679 and chemical-count #693 at 1 lbs. Befesa Zinc Metal LLC leads reported pounds (43.1M lbs) at 4 chemicals (chemical-count #158). Pcs Phosphate Co Inc leads chemical count at 29 chemicals (22.9M lbs, pounds #2). Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Ametek Esp; Vpg; Ajinomoto Health & Nutrition N.a. Inc.; Concrete Supply Co. LLC - Durant Park. Similar-scale Nonmetallic Mineral Product peers outside North Carolina: Syar Cameron Park; Titan Florida-Venice Rmc Plant; Ready Mixed Concrete Co Council Bluffs Plant; Forterra Pipe & Precast - Prentiss. Other Summit Materials LLC sites in this extract: Continental Cement Co; Continental Cement Co LLC; Argos USA - Martinsburg; Argos Newberry Plant. Largest disclosed chemicals by pounds: Lead.
Argos Knightdale Concrete Plant stamps TRACE volume with a dominant AIR pathway (100.0% air releases) across 1 chemical · 1 carcinogen-classified. Cumulative Form-R extract: 1 lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Syar Cameron Park and Titan Florida-Venice Rmc Plant.
Argos Knightdale Concrete Plant vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
1 lbs 23rd percentile higher than 23% 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
Argos Knightdale Concrete Plant in the Nonmetallic Mineral Product sector extract
Among the 3,265 Nonmetallic Mineral Product facilities in this database, Argos Knightdale Concrete Plant reports the 1,734th-largest volume (1 lbs). Scale peers outside North Carolina include Syar Cameron Park and Titan Florida-Venice Rmc Plant.
Sector rank uses reported TRI pounds only. Share callouts need ≥1,000 lbs so tiny totals cannot mint a false signal.
Argos Knightdale Concrete Plant Form-R facts
Compare this facility
See how Argos Knightdale Concrete Plant stacks up against nearby facilities and the typical reporter.
5.3× more 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 Argos Knightdale Concrete Plant releases toxic chemicals into the environment. Total: 1 lbs.
Emissions Trend Summary
From 2019 to 2023, total releases increased by 22% (0 lbs to 0 lbs).
Argos Knightdale Concrete Plant: annual Form-R pounds
TRACE site · AIR pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Argos Knightdale Concrete Plant year-over-year reported totals (increased by 22% 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: Lead.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 0 lbs | 1 |
| 2020 | 0 lbs | 1 |
| 2021 | 0 lbs | 1 |
| 2022 | 0 lbs | 1 |
| 2023 | 0 lbs | 1 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 1 of 1 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Lead | 1 lbs | Carcinogen |
Argos Knightdale Concrete Plant · AIR-pathway site
Nearest TRI Facilities to Argos Knightdale Concrete Plant
Closest other reporters in North Carolina - including Ametek Esp, Vpg, Ajinomoto Health & Nutrition N.a. Inc., ordered by distance.
Showing 8 of 786 other reporting facilities in North Carolina.
Similar Nonmetallic Mineral Product Facilities
Other Nonmetallic Mineral Product facilities with similar total release volumes (±80%), outside North Carolina - e.g. Syar Cameron Park, Titan Florida-Venice Rmc Plant, Ready Mixed Concrete Co Council Bluffs Plant.
Other Summit Materials LLC Facilities
Same-parent TRI sites ranked by reported releases - including Continental Cement Co, Continental Cement Co LLC, Argos USA - Martinsburg.
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; nearby reporters include Ametek Esp. Argos Knightdale Concrete Plant stamps TRACE volume · AIR pathway · CARC-HEAVY 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 Argos Knightdale Concrete Plant TRI extract (TRACE · AIR · CARC-HEAVY · lead Lead) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Argos Knightdale Concrete Plant totals are self-reported EPCRA §313 estimates for Knightdale, NC, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 327320 · Nonmetallic Mineral Product. 0.0% of Wake TRI pounds in this extract. Nearest ABS peer: Syar Cameron Park (Δ 0 lbs). Pounds ≠ exposure.
Argos Knightdale Concrete Plant stamps TRACE volume · AIR pathway · CARC-HEAVY · lead Lead. 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