EPA TRI Facility · Natural Gas Processing
Dcp Midstream LP Cimarron Plant
Seiling, OK · Parent: Phillips 66
- Total releases
- 70.7K lbs
- Chemicals reported
- 6
- Carcinogens
- 2
- Primary pathway
- Off-site Transfers
MIXED Form-R mix
Dcp Midstream LP Cimarron Plant: how the 70.7K lbs splits
70.7K lbs across all reported pathways
- Off-site Transfers 46.8K lbs 66.2%
- Air Releases 23.9K lbs 33.8%
Dcp Midstream LP Cimarron Plant's 70.7K lbs Form-R total is MIXED - off-site transfers is 66.2% of the bar. Next segment: air releases at 33.8%. Leading chemical by pounds: n-Hexane.
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.
LIGHT volume MIXED pathway CARC-LEAN
Dcp Midstream LP Cimarron Plant is an EPA Toxics Release Inventory reporter in Seiling, OK, in the natural gas processing sector. It reported 46.1K lbs of releases across 5 chemicals in 2023, and 70.7K lbs in total across its 2022-2023 reporting years. That ranks 5,347 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Oklahoma's 350 reporting TRI sites, pounds #1 is not chemical-count #1. Dcp Midstream LP Cimarron Plant is pounds #89 and chemical-count #78 at 70.7K lbs. International Paper Co leads reported pounds (28.8M lbs) at 21 chemicals (chemical-count #10). Clean Harbors Lone Mountain LLC Lone Mountain Facility leads chemical count at 51 chemicals (15.9M lbs, pounds #3). Reported volume rose against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Redcliff Plant; Iochem Corp; Clean Harbors Lone Mountain LLC Lone Mountain Facility; US Gypsum. Similar-scale Natural Gas Processing peers outside Oklahoma: Clearfork Processing Plant; Black River Processing Plant; San Juan Gas Plant; Eog Resources Inc Shiner Hub. Other Phillips 66 sites in this extract: Phillips 66 Co-Bayway Refinery; Phillips 66 Rodeo Renewable Energy Complex; Phillips 66 Los Angeles Refinery Wilmington Plant; Phillips 66 Los Angeles Refinery Carson Plant. Largest disclosed chemicals by pounds: n-Hexane; Cyclohexane; Toluene; Benzene.
Dcp Midstream LP Cimarron Plant is a LIGHT · MIXED-pathway Form-R site in Seiling, OK: 70.7K lbs across 6 chemicals (2 carcinogen-classified, CARC-LEAN). No single media clears 70% of the bar (lead segment off-site transfers at 66.2%). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Clearfork Processing Plant and Black River Processing Plant.
Dcp Midstream LP Cimarron Plant vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
71K lbs Top 21% higher than 79% 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
Dcp Midstream LP Cimarron Plant in the Natural Gas Processing sector extract
Among the 339 Natural Gas Processing facilities in this database, Dcp Midstream LP Cimarron Plant reports the 71st-largest volume, placing it in the top 20.9% of its sector. Scale peers outside Oklahoma include Clearfork Processing Plant and Black River Processing Plant.
Sector rank uses reported TRI pounds only. Share callouts need ≥1,000 lbs so tiny totals cannot mint a false signal.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Dcp Midstream LP Cimarron Plant's total reported releases rose from 24.6 thousand lb in 2022 to 46.1 thousand lb in 2023, based on EPA TRI filings.
- Dcp Midstream LP Cimarron Plant's off-site transfers rose from 8.8 thousand lb in 2022 to 38.0 thousand lb in 2023, based on EPA TRI filings.
- Dcp Midstream LP Cimarron Plant's air releases fell from 15.8 thousand lb in 2022 to 8.1 thousand lb in 2023, based on EPA TRI filings.
- Dcp Midstream LP Cimarron Plant's chemicals reported fell from 6 in 2022 to 5 in 2023, based on EPA TRI filings.
Dcp Midstream LP Cimarron Plant Form-R facts
Compare this facility
See how Dcp Midstream LP Cimarron Plant stacks up against nearby facilities and the typical reporter.
3.0× more than the comparison
45% 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 Dcp Midstream LP Cimarron Plant releases toxic chemicals into the environment. Total: 70.7K lbs.
Emissions Trend Summary
From 2022 to 2023, total releases increased by 88% (24.6K lbs to 46.1K lbs).
Dcp Midstream LP Cimarron Plant: annual Form-R pounds
LIGHT site · MIXED pathway · TRI years 2022–2023
- 2022 0
- 2023 0
What this shows Dcp Midstream LP Cimarron Plant year-over-year reported totals (increased by 88% from 2022 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: n-Hexane.
| Year | Total | Chemicals |
|---|---|---|
| 2022 | 24.6K lbs | 6 |
| 2023 | 46.1K lbs | 5 |
Chemical Releases
Aggregated across all reporting years (2022–2023). 2 of 6 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| n-Hexane | 34.8K lbs | - |
| Cyclohexane | 21.5K lbs | - |
| Toluene | 6.6K lbs | - |
| Benzene | 4.0K lbs | Carcinogen |
| Xylene (mixed isomers) | 2.8K lbs | - |
| Ethylbenzene | 976 lbs | Carcinogen |
Dcp Midstream LP Cimarron Plant in Woodward
Nearest TRI Facilities to Dcp Midstream LP Cimarron Plant
Closest other reporters in Oklahoma - including Redcliff Plant, Iochem Corp, Clean Harbors Lone Mountain LLC Lone Mountain Facility, ordered by distance.
Showing 8 of 349 other reporting facilities in Oklahoma.
Similar Natural Gas Processing Facilities
Other Natural Gas Processing facilities with similar total release volumes (±80%), outside Oklahoma - e.g. Clearfork Processing Plant, Black River Processing Plant, San Juan Gas Plant.
Compare beyond Oklahoma
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Dcp Midstream LP Cimarron Plant on cumulative reported pounds (70.7K lbs) and distinct chemical count (6). Release-pound peers include Catalina Cylinders Inc, Austin Powder Co, Arnold Magnetic Technologies - Arnold Engineering. Chemical-count peers include Eaton Intelligent Power Ltd, Leoni Wire Inc, Turf Care Supply-Hatfield Plant. 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.
- Catalina Cylinders Inc Hampton, VA · Primary Metals 70.7K lbs reported
- Austin Powder Co Mc Arthur, OH · Chemicals 70.7K lbs reported
- Arnold Magnetic Technologies - Arnold Engineering Marengo, IL · Fabricated Metals 70.7K lbs reported
- Ducommun Aerostructures Inc. Parsons, KS · Transportation Equipment 70.8K lbs reported
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
Other Phillips 66 Facilities
Same-parent TRI sites ranked by reported releases - including Phillips 66 Co-Bayway Refinery, Phillips 66 Rodeo Renewable Energy Complex, Phillips 66 Los Angeles Refinery Wilmington Plant.
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 n-Hexane, Cyclohexane, Toluene, Benzene; nearby reporters include Redcliff Plant. Dcp Midstream LP Cimarron Plant stamps LIGHT volume · MIXED 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 Dcp Midstream LP Cimarron Plant TRI extract (LIGHT · MIXED · CARC-LEAN · lead n-Hexane) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Dcp Midstream LP Cimarron Plant totals are self-reported EPCRA §313 estimates for Seiling, OK, latest year 2023. Form-R rows span 2022–2023 (2 years). NAICS 211130 · Natural Gas Processing. 1.0% of Woodward TRI pounds in this extract. Nearest ABS peer: Catalina Cylinders Inc (Δ 1 lbs). Pounds ≠ exposure.
Dcp Midstream LP Cimarron Plant stamps LIGHT · MIXED pathway (off-site transfers leads at 66.2%). Pipeline-rendered EPA Form-R only - no editor-typed pounds. 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