EPA TRI Facility · Chemicals
Reg Mason City LLC
Mason City, IA · Parent: Chevron Corp
- Total releases
- 42.8K lbs
- Chemicals reported
- 1
- Latest report
- 2023
- Primary pathway
- Air Releases
AIR Form-R mix
Reg Mason City LLC: how the 42.8K lbs splits
42.8K lbs across all reported pathways
- Air Releases 42.8K lbs 100.0%
Reg Mason City LLC's 42.8K 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: Methanol.
LIGHT volume AIR pathway CLEAN
Reg Mason City LLC is an EPA Toxics Release Inventory reporter in Mason City, IA, in the chemicals sector. It reported 3.1K lbs of releases across 1 chemical in 2023, and 42.8K lbs in total across its 2019-2023 reporting years. That ranks 6,474 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Iowa's 460 reporting TRI sites, pounds #1 is not chemical-count #1. Reg Mason City LLC is pounds #184 and chemical-count #337 at 42.8K lbs. Climax Molybdenum Co leads reported pounds (16.4M lbs) at 5 chemicals (chemical-count #117). Helena Industries LLC leads chemical count at 32 chemicals (9.4K lbs, pounds #247). Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Woodharbor Doors & Cabinetry; Masonite Corp - 19TH St Facility; Ag Processing Inc; Minnesota Rubber & Plastics. Similar-scale Chemicals peers outside Iowa: Advance Coatings Co; Arclin USA LLC; A-Gas US Inc; Chemtrade Solutions LLC. Other Chevron Corp sites in this extract: Chevron Oronite Co LLC - Oak Point Plant; Chevron Products Co. Div of Chevron USA Inc.; Chevron Products Co Pascagoula Refinery; Chevron Products Co Richmond Refinery. Largest disclosed chemicals by pounds: Methanol.
Reg Mason City LLC stamps LIGHT volume with a dominant AIR pathway (100.0% air releases) across 1 chemical. Cumulative Form-R extract: 42.8K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Advance Coatings Co and Arclin USA LLC.
Reg Mason City LLC vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
43K lbs Top 25% higher than 75% 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
Reg Mason City LLC: Methanol-led volume
Among the 3,917 Chemicals facilities in this database, Reg Mason City LLC reports the 1,362nd-largest volume (42.8K lbs). Its reported volume is concentrated rather than spread: Methanol alone is 100% of the total. Scale peers outside Iowa include Advance Coatings Co and Arclin USA LLC.
Concentrated means ≥60% of Reg Mason City LLC's pounds in one chemical - here Methanol at 100%. Not a toxicity score.
Reg Mason City LLC Form-R facts
Compare this facility
See how Reg Mason City LLC stacks up against nearby facilities and the typical reporter.
57% less than the comparison
50% 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 Reg Mason City LLC releases toxic chemicals into the environment. Total: 42.8K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 75% (12.2K lbs to 3.1K lbs).
Reg Mason City LLC: annual Form-R pounds
LIGHT site · AIR pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Reg Mason City LLC year-over-year reported totals (decreased by 75% 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: Methanol.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 12.2K lbs | 1 |
| 2020 | 12.2K lbs | 1 |
| 2021 | 12.2K lbs | 1 |
| 2022 | 3.1K lbs | 1 |
| 2023 | 3.1K lbs | 1 |
Chemical Releases
Aggregated across all reporting years (2019–2023). Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Methanol | 42.8K lbs | - |
Reg Mason City LLC · AIR-pathway site
Nearest TRI Facilities to Reg Mason City LLC
Closest other reporters in Iowa - including Woodharbor Doors & Cabinetry, Masonite Corp - 19TH St Facility, Ag Processing Inc, ordered by distance.
Showing 8 of 459 other reporting facilities in Iowa.
Similar Chemicals Facilities
Other Chemicals facilities with similar total release volumes (±80%), outside Iowa - e.g. Advance Coatings Co, Arclin USA LLC, A-Gas US Inc.
Compare beyond Iowa
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Reg Mason City LLC on cumulative reported pounds (42.8K lbs) and distinct chemical count (1). Release-pound peers include Advance Coatings Co, Justin Tanks LLC, Exide Technologies Reading Smelter Div. Chemical-count peers include Ecoelectrica LP, Planta Penuelas, Tallaboa Puerto Rico LLC. Neighborhoods are forced disjoint so each axis surfaces a different set of sites.
Similar reported release pounds
Nearest out-of-state reporters (≥1,000 lbs) by absolute TRI pounds, not same-industry or same-county neighbors.
- Advance Coatings Co Westminster, MA · Chemicals 42.8K lbs reported
- Justin Tanks LLC Georgetown, DE · Plastics and Rubber 42.8K lbs reported
- Exide Technologies Reading Smelter Div Reading, PA · Primary Metals 42.8K lbs reported
- Bluescope Buildings N.a. Inc Visalia, CA · Fabricated Metals 42.7K lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
Other Chevron Corp Facilities
Same-parent TRI sites ranked by reported releases - including Chevron Oronite Co LLC - Oak Point Plant, Chevron Products Co. Div of Chevron USA Inc., Chevron Products Co Pascagoula Refinery.
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 Methanol; nearby reporters include Woodharbor Doors & Cabinetry. Reg Mason City LLC stamps LIGHT volume · AIR 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 Reg Mason City LLC TRI extract (LIGHT · AIR · CLEAN · lead Methanol) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Reg Mason City LLC totals are self-reported EPCRA §313 estimates for Mason City, IA, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 325199 · Chemicals. 4.4% of Cerro Gordo TRI pounds in this extract. Nearest ABS peer: Advance Coatings Co (Δ 2 lbs). Pounds ≠ exposure.
Reg Mason City LLC stamps LIGHT volume · AIR pathway · CLEAN · lead Methanol. 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