EPA TRI Facility · Chemicals
Monument Chemical Houston LLC
Houston, TX · Parent: Monument Chemical LLC
- Total releases
- 522.2K lbs
- Chemicals reported
- 14
- Carcinogens
- 4
- Primary pathway
- Off-site Transfers
OFFSITE Form-R mix
Monument Chemical Houston LLC: how the 522.2K lbs splits
522.2K lbs across all reported pathways
- Off-site Transfers 458.9K lbs 87.9%
- Air Releases 60.7K lbs 11.6%
- Water Discharges 2.6K lbs 0.5%
Monument Chemical Houston LLC's 522.2K lbs Form-R total is OFFSITE - off-site transfers is 87.9% of the bar. Next segment: air releases at 11.6%. Leading chemical by pounds: Isobutyraldehyde.
Carcinogen-classified pounds vs other reported pounds
Same cumulative TRI total as above, split by EPA/IARC carcinogen classification on each chemical: pounds share, not chemical count. Classification is not a site health-risk score.
MID volume OFFSITE pathway CARC-LEAN
Monument Chemical Houston LLC is an EPA Toxics Release Inventory reporter in Houston, TX, in the chemicals sector. It reported 116.8K lbs of releases across 11 chemicals in 2023, and 522.2K lbs in total across its 2019-2023 reporting years. That ranks 1,895 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. Monument Chemical Houston LLC is pounds #201 and chemical-count #146 at 522.2K 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). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Oil States Industries Inc; Technipfmc Umbilicals Inc; Hartree Refinery; Precoat Metals Div Sequa Corp. Similar-scale Chemicals peers outside Texas: Versum Materials US LLC; The Andersons Inc. - Gibbon; Minova USA Inc.; Innovative Chemical Technologies Inc.. Other Monument Chemical LLC sites in this extract: Monument Chemical Port Arthur LLC; Monument Chemical Bayport LLC; Monument Chemical Baytown LLC. Largest disclosed chemicals by pounds: Isobutyraldehyde; Methyl isobutyl ketone; Methyl tert-butyl ether; tert-Butyl alcohol.
Monument Chemical Houston LLC stamps MID volume with a dominant OFFSITE pathway (87.9% off-site transfers) across 14 chemicals · 4 carcinogen-classified. Cumulative Form-R extract: 522.2K lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Versum Materials US LLC and The Andersons Inc. - Gibbon.
Monument Chemical Houston LLC vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
522K lbs Top 7% higher than 93% 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
Monument Chemical Houston LLC: Isobutyraldehyde-led volume
Among the 3,917 Chemicals facilities in this database, Monument Chemical Houston LLC reports the 386th-largest volume, placing it in the top 9.9% of its sector. Its reported volume is concentrated rather than spread: Isobutyraldehyde alone is 85.6% of the total. Scale peers outside Texas include Versum Materials US LLC and The Andersons Inc. - Gibbon.
Concentrated means ≥60% of Monument Chemical Houston LLC's pounds in one chemical - here Isobutyraldehyde at 85.6%. Not a toxicity score.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Monument Chemical Houston LLC's total reported releases fell from 120.5 thousand lb in 2022 to 116.8 thousand lb in 2023, based on EPA TRI filings.
- Monument Chemical Houston LLC's water releases fell from 410 lb in 2022 to 320 lb in 2023, based on EPA TRI filings.
- Monument Chemical Houston LLC's air releases rose from 13.4 thousand lb in 2022 to 14.8 thousand lb in 2023, based on EPA TRI filings.
- Monument Chemical Houston LLC's off-site transfers fell from 106.7 thousand lb in 2022 to 101.6 thousand lb in 2023, based on EPA TRI filings.
Monument Chemical Houston LLC Form-R facts
Compare this facility
See how Monument Chemical Houston LLC stacks up against nearby facilities and the typical reporter.
1483.5× more than the comparison
14.0× 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 Monument Chemical Houston LLC releases toxic chemicals into the environment. Total: 522.2K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases increased by 717% (14.3K lbs to 116.8K lbs).
Monument Chemical Houston LLC: annual Form-R pounds
MID site · OFFSITE pathway · TRI years 2019–2023
- 2019 0
- 2020 0
- 2021 0
- 2022 0
- 2023 0
What this shows Monument Chemical Houston LLC year-over-year reported totals (increased by 717% 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: Isobutyraldehyde.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 14.3K lbs | 9 |
| 2020 | 132.4K lbs | 8 |
| 2021 | 138.2K lbs | 9 |
| 2022 | 120.5K lbs | 11 |
| 2023 | 116.8K lbs | 11 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 4 of 14 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Isobutyraldehyde | 447.0K lbs | - |
| Methyl isobutyl ketone | 24.1K lbs | Carcinogen |
| Methyl tert-butyl ether | 20.9K lbs | - |
| tert-Butyl alcohol | 12.8K lbs | - |
| Vinyl acetate | 10.0K lbs | Carcinogen |
| Methanol | 5.3K lbs | - |
| Ethyl acrylate | 768 lbs | Carcinogen |
| n-Butyl alcohol | 649 lbs | - |
| Dicyclopentadiene | 180 lbs | - |
| Naphthalene | 167 lbs | Carcinogen |
| n-Hexane | 113 lbs | - |
| Certain glycol ethers | 19 lbs | - |
| 2-Methoxyethanol | 13 lbs | - |
| Cyclohexane | 0 lbs | - |
Monument Chemical Houston LLC · OFFSITE-pathway site
Nearest TRI Facilities to Monument Chemical Houston LLC
Closest other reporters in Texas - including Oil States Industries Inc, Technipfmc Umbilicals Inc, Hartree Refinery, ordered by distance.
Showing 8 of 2,015 other reporting facilities in Texas.
Similar Chemicals Facilities
Other Chemicals facilities with similar total release volumes (±80%), outside Texas - e.g. Versum Materials US LLC, The Andersons Inc. - Gibbon, Minova USA Inc..
Compare beyond Texas
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Monument Chemical Houston LLC on cumulative reported pounds (522.2K lbs) and distinct chemical count (14). Release-pound peers include George Industries, Nucor Coatings Corp, Versum Materials US LLC. Chemical-count peers include Shell New Haven Terminal, Chambers Cogeneration L.P., Avantor Performance Materials. 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.
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
Other Monument Chemical LLC Facilities
Same-parent TRI sites ranked by reported releases - including Monument Chemical Port Arthur LLC, Monument Chemical Bayport LLC, Monument Chemical Baytown 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 Isobutyraldehyde, Methyl isobutyl ketone, Methyl tert-butyl ether, tert-Butyl alcohol; nearby reporters include Oil States Industries Inc. Monument Chemical Houston LLC stamps MID volume · OFFSITE pathway · CARC-LEAN 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 Monument Chemical Houston LLC TRI extract (MID · OFFSITE · CARC-LEAN · lead Isobutyraldehyde) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Monument Chemical Houston LLC totals are self-reported EPCRA §313 estimates for Houston, TX, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 325199 · Chemicals. 0.2% of Harris TRI pounds in this extract. Nearest ABS peer: George Industries (Δ 600 lbs). Pounds ≠ exposure.
Monument Chemical Houston LLC stamps MID volume · OFFSITE pathway · CARC-LEAN · lead Isobutyraldehyde. 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