EPA TRI Facility · Petroleum

Citgo Petroleum Corp Lemont Refinery

Lemont, IL · Parent: Pdv Holding Inc

Total releases
1.1M lbs
Chemicals reported
35
Carcinogens
9
Primary pathway
Air Releases
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Citgo Petroleum Corp Lemont Refinery has reported 1.1M lbs of toxic releases across 35 chemicals to the EPA Toxic Release Inventory, based on annual facility disclosures from 2019 through 2023. Of the chemicals reported, 9 are classified as carcinogens, representing 26% of the facility's chemical profile. The facility operates in the Petroleum sector. The primary release pathway is air releases, accounting for 68% of total releases. All release data shown below is self-reported to the EPA under the Emergency Planning and Community Right-to-Know Act (EPCRA) Section 313.

#1,238 of 25,902 TRI facilities nationwide by total reported releases - among the top 4.8% of reporting sites by volume. Ranking reflects reported pounds, not toxicity or health risk.

Citgo Petroleum Corp Lemont Refinery files annual Form R disclosures to the EPA Toxics Release Inventory under EPCRA Section 313, classified under NAICS 324110 (Petroleum). Across 5 years of records spanning 2019–2023, the site has disclosed 1.1M lbs in cumulative toxic releases across 35 distinct chemicals, 9 of which (26%) carry a carcinogenic classification.

The dominant release pathway is air releases at 729.4K lbs (67.7% of total volume), followed by water discharges at 26.3%. Between 2019 and 2023, reported totals increased by 112% - from 165.5K lbs to 351.0K lbs. The facility is operated under parent company Pdv Holding Inc.

TRI Form R values are self-reported estimates, not measured stack emissions, and treat every pound of reported chemical equally regardless of toxicity. Inclusion in the TRI database does not establish a health risk to nearby residents; it documents the annual reporting record that Citgo Petroleum Corp Lemont Refinery has filed with the EPA under federal community right-to-know requirements.

Quick Facts

Industry
Petroleum
NAICS Code
324110
Total Releases
1.1M lbs
Chemicals Reported
35
Latest Report Year
2023

Compare this facility

See how Citgo Petroleum Corp Lemont Refinery stacks up against nearby facilities and the typical reporter.

Total reported releases
Citgo Petroleum Corp Lemont Refinery
1.1M lbs
Prairie State Generating Co
37.9M lbs

97% less than the comparison

Chemicals reported
Citgo Petroleum Corp Lemont Refinery
35
Prairie State Generating Co
31

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 Citgo Petroleum Corp Lemont Refinery releases toxic chemicals into the environment. Total: 1.1M lbs.

Air Releases 729.4K lbs (67.7%)
Water Discharges 283.3K lbs (26.3%)
Off-site Transfers 64.2K lbs (6.0%)
Land Disposal 0 lbs (<0.1%)
View 5-Year Emissions Trend →

Emissions Trend Summary

From 2019 to 2023, total releases increased by 112% (165.5K lbs to 351.0K lbs).

Reported total releases by year

Citgo Petroleum Corp Lemont Refinery - annual TRI totals

million lbs

What this shows Year-over-year reported totals. TRI figures are self-reported estimates and can swing with production levels, waste-rock handling and reporting changes, not only with emissions controls.

Source EPA Toxics Release Inventory (TRI)
Year Total Chemicals
2019 165.5K lbs 34
2020 150.6K lbs 34
2021 232.5K lbs 34
2022 177.3K lbs 34
2023 351.0K lbs 34

Chemical Releases

Aggregated across all reporting years (2019–2023). 9 of 35 chemicals are carcinogens. Sorted by total release volume.

Chemical Total Flags
Nitrate compounds (water dissociable; reportable only when in aqueous solution) 242.5K lbs -
Hydrogen sulfide 203.0K lbs -
Ammonia 88.6K lbs -
n-Hexane 82.7K lbs -
Toluene 69.8K lbs -
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 61.8K lbs -
Benzene 52.0K lbs Carcinogen
Xylene (mixed isomers) 41.9K lbs -
Ethylbenzene 37.8K lbs Carcinogen
Vanadium compounds 33.7K lbs -
Ethylene 31.5K lbs -
Propylene 21.1K lbs -
Zinc compounds 19.6K lbs -
Lead And Lead Compounds 17.5K lbs -
Cumene 13.1K lbs Carcinogen
Polycyclic aromatic compounds 11.1K lbs Carcinogen
1,2,4-Trimethylbenzene 11.0K lbs -
Cyclohexane 8.8K lbs -
Molybdenum trioxide 6.5K lbs Carcinogen
Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) 5.2K lbs -
Nickel And Nickel Compounds 3.6K lbs Carcinogen
Naphthalene 3.0K lbs Carcinogen
Cobalt And Cobalt Compounds 2.7K lbs Carcinogen
Phenol 2.4K lbs -
Carbon disulfide 1.4K lbs -
Biphenyl 1.4K lbs -
Methanol 1.4K lbs -
Carbonyl sulfide 1.1K lbs -
Chlorine 240 lbs -
Antimony And Antimony Compounds 215 lbs -
Benzo[g,h,i]perylene 103 lbs -
Hydrogen fluoride 100 lbs -
Mercury And Mercury Compounds 77 lbs -
1,3-Butadiene 12 lbs Carcinogen
Mercury compounds 8 lbs -

Location

Coordinates
41.6410, -88.0487
ZIP Code
60439
EPA Facility ID
60439NCLCR135TH

About TRI Data

Data as of 2023 reporting year. Source: U.S. Environmental Protection Agency (EPA) Toxic Release Inventory.

Data comes from the EPA Toxic Release Inventory (TRI) program. Facilities that manufacture, process, or otherwise use listed toxic chemicals above threshold amounts are required to report annually to the EPA.

Release quantities are self-reported by the facility and may represent estimates rather than exact measurements. "Total releases" includes releases to air, water, land, and off-site transfers for disposal. Quantities shown here are aggregated across all available reporting years.

PlainEnviro presents this data without advocacy framing. The presence of a facility in the TRI database does not by itself indicate a health risk. For site-specific health questions, consult your local environmental or health agency.

Frequently Asked Questions

What chemicals does Citgo Petroleum Corp Lemont Refinery release?
Citgo Petroleum Corp Lemont Refinery has reported releases of 35 chemicals to the EPA Toxic Release Inventory, totaling 1.1M lbs. 9 of these (26%) are classified as carcinogens.
What industry is Citgo Petroleum Corp Lemont Refinery in?
Citgo Petroleum Corp Lemont Refinery is classified under the "Petroleum" industry (NAICS code 324110), located in Lemont, IL.
How long has Citgo Petroleum Corp Lemont Refinery reported to the TRI?
Citgo Petroleum Corp Lemont Refinery has EPA Toxic Release Inventory data spanning 5 years, from 2019 to 2023.
How does Citgo Petroleum Corp Lemont Refinery release toxic chemicals?
The primary release pathway for Citgo Petroleum Corp Lemont Refinery is air releases, accounting for 67.7% of total releases (729.4K lbs). Secondary pathway: water discharges (26.3%).
Are emissions from Citgo Petroleum Corp Lemont Refinery increasing or decreasing?
From 2019 to 2023, total releases increased by 112%, from 165.5K lbs to 351.0K lbs.
Is Citgo Petroleum Corp Lemont Refinery a health risk?
The presence of a facility in the TRI database does not by itself indicate a health risk. Release quantities are self-reported estimates. For site-specific health questions, consult your local environmental or health agency.
Does Citgo Petroleum Corp Lemont Refinery release carcinogens?
Yes, Citgo Petroleum Corp Lemont Refinery reports 9 chemicals classified as carcinogens, representing 26% of all chemicals reported by this facility. Carcinogen classification is based on EPA and IARC assessments.

What to do with this facility's data

Use this facility profile as a starting point, then check how it compares.

  • See whether releases reported by Citgo Petroleum Corp Lemont Refinery are rising or falling over time. View trends
  • This facility ranks #1,238 of 25,902 TRI facilities nationwide by total reported releases - among the top 4.8% of reporting sites by volume. Ranking reflects reported pounds, not toxicity or health risk. See the full rankings
  • Check Illinois's statewide profile for the full picture: total facilities, water systems, and Superfund sites. View Illinois profile

TRI release totals are self-reported estimates submitted to the EPA, not independently measured stack emissions; a high rank reflects reported volume, not necessarily local health risk.

Related

Sources & how this page was built

Every figure on this page traces to public, federal-government data on Citgo Petroleum Corp Lemont Refinery. The records below are the primary sources; our methodology explains how they are joined, computed, and verified.

Retrieved and formatted by PlainEnviro Editorial. TRI release totals are self-reported estimates, not measured stack emissions.

According to the U.S. Environmental Protection Agency, the Toxics Release Inventory has required annual industrial disclosure since its creation under the Emergency Planning and Community Right-to-Know Act in October 1986, and this facility's record is drawn from PlainEnviro's database of more than 25,000 EPA-tracked facilities through the 2023 reporting year; see our methodology for full source citations and refresh cadence.