EPA TRI Facility · Petroleum
Knife River Corp - South Waco Asphalt Plant
Waco, TX · Parent: Knife River Corp
- Total releases
- 2 lbs
- Chemicals reported
- 2
- Carcinogens
- 1
- Primary pathway
- Air Releases
AIR Form-R mix
Knife River Corp - South Waco Asphalt Plant: how the 2 lbs splits
2 lbs across all reported pathways
- Air Releases 2 lbs 100.0%
Knife River Corp - South Waco Asphalt Plant's 2 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: Polycyclic aromatic compounds.
TRACE volume AIR pathway CARC-HEAVY
Knife River Corp - South Waco Asphalt Plant is an EPA Toxics Release Inventory reporter in Waco, TX, in the petroleum sector. It reported 0 lbs of releases across 2 chemicals in 2023, and 2 lbs in total across its 2019-2023 reporting years. That ranks 19,336 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Texas's 2,016 reporting TRI sites, pounds #1 is not chemical-count #1. Knife River Corp - South Waco Asphalt Plant is pounds #1718 and chemical-count #1396 at 2 lbs. Ascend Performance Materials-Chocolate Bayou Plant leads reported pounds (94.0M lbs) at 36 chemicals (chemical-count #35). Veolia Es Technical Solutions LLC Port Arthur Facility leads chemical count at 246 chemicals (1.5M lbs, pounds #112). Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Waco Hot Mix Plant; Flint Hills Resources Corpus Christi LLC Waco Terminal; Roca Bathroom Products Inc.; Waco Composites. Similar-scale Petroleum peers outside Texas: Cadillac Asphalt LLC - Troy; Weldon Asphalt Co.; Michigan Paving & Materials - Paw Paw (klett) Asphalt Plan; Branscome-Hampton. 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: Polycyclic aromatic compounds; Benzo[g,h,i]perylene.
Compare Knife River Corp - South Waco Asphalt Plant with
Nearest reporters in Texas
- Waco Hot Mix Plant Waco · 2 lbs
- Flint Hills Resources Corpus Christi LLC Waco Terminal Waco · 15.1K lbs
- Roca Bathroom Products Inc. Waco · 185.1K lbs
- Waco Composites Waco · 88.6K lbs
Similar-scale Petroleum sites elsewhere: Cadillac Asphalt LLC - Troy (MI) · Weldon Asphalt Co. (NJ) · Michigan Paving & Materials - Paw Paw (klett) Asphalt Plan (MI)
Knife River Corp - South Waco Asphalt Plant stamps TRACE volume with a dominant AIR pathway (100.0% air releases) across 2 chemicals · 1 carcinogen-classified. Cumulative Form-R extract: 2 lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Cadillac Asphalt LLC - Troy and Weldon Asphalt Co..
Knife River Corp - South Waco Asphalt Plant vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
2 lbs 26th percentile higher than 26% 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 Corp - South Waco Asphalt Plant in the Petroleum sector extract
Among the 902 Petroleum facilities in this database, Knife River Corp - South Waco Asphalt Plant reports the 596th-largest volume (2 lbs). Scale peers outside Texas include Cadillac Asphalt LLC - Troy and Weldon Asphalt Co..
Sector rank uses reported TRI pounds only. Share callouts need ≥1,000 lbs so tiny totals cannot mint a false signal.
Knife River Corp - South Waco Asphalt Plant Form-R facts
Compare this facility
See how Knife River Corp - South Waco Asphalt Plant stacks up against nearby facilities and the typical reporter.
55% 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 Knife River Corp - South Waco Asphalt Plant releases toxic chemicals into the environment. Total: 2 lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 39% (1 lbs to 0 lbs).
Knife River Corp - South Waco Asphalt 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 Knife River Corp - South Waco Asphalt Plant year-over-year reported totals (decreased by 39% 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: Polycyclic aromatic compounds.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 1 lbs | 2 |
| 2020 | 1 lbs | 2 |
| 2021 | 0 lbs | 2 |
| 2022 | 0 lbs | 2 |
| 2023 | 0 lbs | 2 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 1 of 2 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Polycyclic aromatic compounds | 2 lbs | Carcinogen |
| Benzo[g,h,i]perylene | 0 lbs | - |
Knife River Corp - South Waco Asphalt Plant · AIR-pathway site
Nearest TRI Facilities to Knife River Corp - South Waco Asphalt Plant
Closest other reporters in Texas - including Waco Hot Mix Plant, Flint Hills Resources Corpus Christi LLC Waco Terminal, Roca Bathroom Products Inc., ordered by distance.
Showing 8 of 2,015 other reporting facilities in Texas.
Similar Petroleum Facilities
Other Petroleum facilities with similar total release volumes (±80%), outside Texas - e.g. Cadillac Asphalt LLC - Troy, Weldon Asphalt Co., Michigan Paving & Materials - Paw Paw (klett) Asphalt Plan.
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 Polycyclic aromatic compounds, Benzo[g,h,i]perylene; nearby reporters include Waco Hot Mix Plant. Knife River Corp - South Waco Asphalt 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 Knife River Corp - South Waco Asphalt Plant TRI extract (TRACE · AIR · CARC-HEAVY · lead Polycyclic aromatic compounds) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Knife River Corp - South Waco Asphalt Plant totals are self-reported EPCRA §313 estimates for Waco, TX, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 324121 · Petroleum. 0.0% of Mclennan TRI pounds in this extract. Nearest ABS peer: Burlington Generating Station (Δ 0 lbs). Pounds ≠ exposure.
Knife River Corp - South Waco Asphalt Plant stamps TRACE volume · AIR pathway · CARC-HEAVY · lead Polycyclic aromatic compounds. 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