Westmoreland Mining LLC
1 facility · 1 state · 3.6M lbs total releases
According to the EPA Toxics Release Inventory, Westmoreland Mining LLC is the reported parent of 1 Form R facility across 1 state, disclosing 3.6M lbs of toxic releases. 8 of 25 reported chemicals carry a carcinogen classification in the TRI extract. The heaviest-reporting state by release volume is New Mexico (3.6M lbs). Those TRI figures remain self-reported disclosure pounds for Westmoreland Mining LLC, including carcinogen-flagged substances, not a measured public-health risk score.
Release-over-release change
What changed for Westmoreland Mining LLC: EPA TRI 2023 reporting year
Same facilities, both years
-100.0%
1 facilities that filed in 2022 and 2023
Whole inventory
-100.0%
559.4 thousand lb → 0 lb, every facility that filed
- Westmoreland Mining LLC's total reported releases fell from 559.4 thousand lb in 2022 to 0 lb in 2023, based on EPA TRI filings.
- Westmoreland Mining LLC's land releases fell from 559.4 thousand lb in 2022 to 0 lb in 2023, based on EPA TRI filings.
- Westmoreland Mining LLC's chemicals reported fell from 10 in 2022 to 2 in 2023, based on EPA TRI filings.
TRI parent disclosure trail
Read Westmoreland Mining LLC from filing to facility
Westmoreland Mining LLC maps to a single Form R site (Westmoreland San Juan Mining LLC - San Juan Mine) in New Mexico. Open that filing for the chemical mix; pounds stay disclosure, not risk.
Source: U.S. Environmental Protection Agency, TRI Basic Data Files Toxics Release Inventory (TRI) · August 2026
Largest Form R sites under this parent: Westmoreland San Juan Mining LLC - San Juan Mine. Neighbor parents on the disclosure ladder: Kinetik Holdings LP; Energy Transfer Partners LP; Southwest Cheese LLC; US Department of Defense. Largest disclosed chemicals by pounds: Barium compounds (except for barium sulfate (CAS No. 7727-43-7)); Barium And Barium Compounds; Manganese compounds; Vanadium compounds; Manganese And Manganese Compounds. Heaviest-reporting states in this extract: New Mexico. Industry labels on the parent rollup: Coal Mining.
Westmoreland Mining LLC ranks #323 of 4,988 slug-merged TRI parents, a smaller disclosed-volume parent relative to the national Form R parent set. Westmoreland Mining LLC's TRI Form R footprint is concentrated in a single state (New Mexico), so statewide context matters more than a multi-state portfolio read. This parent maps to a single reporting facility (Westmoreland San Juan Mining LLC - San Juan Mine), so the company total and that site's Form R are the same disclosure.
Parent aggregation for Westmoreland Mining LLC follows facility-reported names. Compare the named neighbors (Kinetik Holdings LP; Energy Transfer Partners LP; Southwest Cheese LLC) before treating rank as a hazard score; TRI stays self-reported and unweighted by toxicity.
Where Westmoreland Mining LLC sits among TRI parents
Westmoreland Mining LLC sits on a disclosure ladder beside Kinetik Holdings LP and Energy Transfer Partners LP and Southwest Cheese LLC and US Department of Defense. Open those parents for a different facility count, state span, and chemical mix.
Higher disclosed volume
- Kinetik Holdings LP · rank #321 · 31.3M lbs
- Energy Transfer Partners LP · rank #322 · 22.1M lbs
Lower disclosed volume
- Southwest Cheese LLC · rank #324 · 2.4M lbs
- US Department of Defense · rank #325 · 1.7M lbs
Largest chemicals disclosed by Westmoreland Mining LLC
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)); Barium And Barium Compounds; Manganese compounds; Vanadium compounds; Manganese And Manganese Compounds lead the Form R pound rollup for this parent, including filings such as Westmoreland San Juan Mining LLC - San Juan Mine. Pound totals, not toxicity-weighted risk.
| Chemical | Disclosed lbs |
|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 1.4M lbs |
| Barium And Barium Compounds | 684.5K lbs |
| Manganese compounds | 359.0K lbs |
| Vanadium compounds | 208.0K lbs |
| Manganese And Manganese Compounds | 162.1K lbs |
Facilities (1)
| Facility | Releases |
|---|---|
| Westmoreland San Juan Mining LLC - San Juan Mine Waterflow, NM | 3.6M lbs |
Frequently Asked Questions
How much pollution does Westmoreland Mining LLC release?
How many facilities does Westmoreland Mining LLC operate?
What industries and chemicals show up for Westmoreland Mining LLC?
Does Westmoreland Mining LLC release carcinogens?
Compare beyond the release ladder
Nationwide peers by disclosed pounds & facility count
Cross-portfolio TRI parents nearest Westmoreland Mining LLC on total disclosed release pounds (3.6M lbs) and reporting facility count (1). Release-volume peers include Arcosa Inc, Shell Oil Co, Aurorium Ppc Holdings LLC. Neighborhoods are forced disjoint so each axis surfaces a different set of parents.
Similar disclosed release pounds
Nearest parents (≥3 facilities, ≥10k lbs) by absolute TRI disclosed pounds, not rank-adjacent ladder neighbors.
About This Data
EPA TRI parent totals cover all media. This extract's heaviest states for the parent are New Mexico; facility-reported names can vary across subsidiaries.
Source: U.S. Environmental Protection Agency, TRI Basic Data Files
What to do with Westmoreland Mining LLC's TRI parent record
From Westmoreland Mining LLC, open Westmoreland San Juan Mining LLC - San Juan Mine or compare against Kinetik Holdings LP rather than reading rank alone.
- Open the largest Form R site for Westmoreland Mining LLC (Westmoreland San Juan Mining LLC - San Juan Mine in NM). Largest facility
- Compare against Energy Transfer Partners LP, the next-higher disclosed-volume parent. Higher-volume parent
- Browse the full parent release ranking to see where Westmoreland Mining LLC sits among all slug-merged TRI parents. All parent companies
Rank and peers (Kinetik Holdings LP, Energy Transfer Partners LP) are disclosure volume only, not toxicity-weighted risk or enforcement status.
Use and verify this record
Westmoreland Mining LLC's record groups disclosed TRI parent-company filings so readers can compare reporting context without treating the total as a measure of risk.
Company release figures are computed directly from EPA Toxic Release Inventory data; source names and the record-linking method are documented in the methodology.
Primary sources
- EPA Toxics Release Inventory Basic Data Files - annual facility-level chemical-release disclosures
PlainEnviro renders public EPA records directly from its data pipeline; no figure on this page is typed in by an editor. See the editorial standards and corrections policy for how source changes and reported errors are handled.