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EPA TRI Chemical

Warfarin and Salts

EPA TRI Category Code: N874

Total releases
172.3K lbs
Number of facilities
7
Carcinogen
No
PBT substance
No
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According to the EPA Toxics Release Inventory, Warfarin and Salts (EPA TRI Category Code N874) is disclosed by 7 Form R facilities totaling 172.3K lbs of reported releases. TRI pounds are self-reported disclosure totals, not a measured public-health risk score.

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Warfarin and Salts (EPA TRI Category Code N874) is a chemical tracked by the EPA Toxics Release Inventory (TRI) program under Section 313 of the Emergency Planning and Community Right-to-Know Act. The TRI requires industrial facilities above specified threshold quantities to disclose annual manufacturing, processing, and otherwise-used volumes, along with quantities released to air, water, land, and off-site transfers.

A carcinogen flag, when present on other chemicals in this database, reflects an assessment from EPA, IARC, or the National Toxicology Program rather than a TRI-specific determination. The largest individual disclosure in the current dataset comes from CHEMICAL WASTE MANAGEMENT in AL at 172.2K lbs.

TRI volumes are self-reported estimates, not measured stack emissions, and each pound counts equally regardless of chemical toxicity, so total pounds should not be equated with total risk. Inclusion of a chemical or facility in the TRI does not itself establish a health hazard; it documents the public right-to-know record. Consult EPA's IRIS (Integrated Risk Information System) and the Agency for Toxic Substances and Disease Registry for health-effect summaries.

LAND pathway mix

Warfarin and Salts: how the 172.3K lbs splits

172.3K lbs across all reported pathways

  • Land Disposal172.2K lbs100.0%
  • Air Releases45 lbs<0.1%
  • Off-site Transfers12 lbs<0.1%

Warfarin and Salts's 172.3K lbs Form-R total is LAND, with land disposal making up 100.0% of the bar. Next segment: air releases at <0.1%.

Trend & Where It's Reported

Reported Release Trend

Between 2019 and 2023, cumulative annual Warfarin and Salts releases across all reporting facilities increased by 724503% (11 lbs → 80.0K lbs). Year-to-year swings reflect facility openings/closures and reporting changes as much as underlying activity.

Geographic Concentration

Reporting for Warfarin and Salts is highly concentrated: Alabama accounts for 100.0% of the reported total (1 facility). Next: Texas.

  • Alabama 172.2K lbs
  • Texas 40 lbs
  • Nebraska 16 lbs
  • Arkansas 0 lbs
  • Utah 0 lbs
Industry Sources

Reporting for Warfarin and Salts is highly concentrated by industry: Hazardous Waste facilities account for 100.0% of the reported total (7 facilities).

  • Hazardous Waste 172.3K lbs

Which facilities release the most of this chemical?

Facilities with the largest reported releases of Warfarin and Salts. Up to 50 shown.

# Facility Release (lbs)
1 Chemical Waste Management
172.2K lbs
2 Veolia Es Technical Solutions LLC Port Arthur Facility
37 lbs
3 Clean Harbors Environmental Services Inc
16 lbs
4 Clean Harbors Deer Park LLC
3 lbs
5 Clean Harbors el Dorado LLC
0 lbs
6 Clean Harbors Aragonite LLC
0 lbs
7 Ross Incineration Services Inc
0 lbs

Frequently Asked Questions

What is Warfarin and Salts in the EPA TRI? ▼
Warfarin and Salts (EPA TRI Category Code: N874) is a chemical tracked by the EPA Toxic Release Inventory (TRI) program. It is not marked as a carcinogen in the TRI classification set. 7 facilities in the United States report releasing this chemical to the EPA.
How much Warfarin and Salts is disclosed in U.S. TRI filings? ▼
U.S. facilities have reported a total of 172.3K lbs of Warfarin and Salts releases to the EPA Toxic Release Inventory across 7 facilities. Release quantities are self-reported estimates covering air, water, land, and off-site transfers. They are disclosure totals, not toxicity-weighted harm scores.
How does EPA TRI classify Warfarin and Salts? ▼
Warfarin and Salts is not marked as a carcinogen in the TRI classification set. TRI classification flags document inventory listing status; they are not a site-specific exposure or health diagnosis. For health-effect summaries see EPA IRIS and ATSDR toxicological profiles.
Which facilities disclose the most Warfarin and Salts? ▼
Chemical Waste Management in AL reports the largest disclosed release of Warfarin and Salts in this dataset, at 172.2K lbs. Most reporting facilities for this chemical fall under hazardous waste. Release data is self-reported annually to the EPA under the TRI program. View the full list of 7 facilities on this page.
Why is Warfarin and Salts listed under code N874 instead of a CAS number? ▼
N874 is an EPA TRI Category Code, not a CAS Registry Number. EPA assigns category codes (N-prefix and K-prefix) to chemical groups that share reporting requirements, for example, "Warfarin and Salts" covers many distinct compounds aggregated for TRI reporting. Individual constituents may have their own CAS Registry Numbers (e.g., elemental Lead is CAS 7439-92-1), but the group is reported under the single TRI Category Code.

Related Guides

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Health Information

Data comes from the EPA Toxic Release Inventory (TRI) program. Release quantities are self-reported by facilities and may represent estimates. The total shown aggregates reports across all facilities and reporting years.

PlainEnviro presents this data without advocacy framing. The presence of a chemical in the TRI database does not by itself indicate a health risk at current exposure levels. For health-related questions about specific chemical exposures, consult your local health agency or a toxicologist.

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Data sourced from the U.S. Environmental Protection Agency (EPA). See our methodology for details. Retrieved and formatted by PlainEnviro

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the EPA Toxic Release Inventory (TRI). Consult a qualified professional before making decisions based on this data.

Read our methodology - how this data is sourced, computed, and verified.