TRI Facilities
485
Very high
OK · EPA TRI · SDWIS · Superfund
Oklahoma environmental disclosure record
According to EPA's 2023 Toxics Release Inventory, Safe Drinking Water Information System, and Superfund National Priorities List extracts, this is Oklahoma's full public registry profile, toxic releases, drinking-water systems, and Superfund sites in one place.
- TRI facilities
- 485
- Reported releases
- 166.2M lbs
- #28 of 56
- Water systems
- 882
- Superfund NPL sites
- 18
Oklahoma vs. every U.S. state
Cumulative TRI-reported release pounds, with this state marked in the national distribution
166M lbs Top 50% higher than 50% of 56 states with TRI reporters
Each bar is a $1M-wide band; taller bars hold more states with TRI reporters. 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
OK regulatory profile by statute
Violation/site counts mapped to the EPA statutes this portal tracks
- CWA · NPDES
- RCRA · Subtitle C 18
What this shows Counts are mapped to statute as a structural proxy and reflect reported activity, not toxicity-weighted or population-adjusted risk. Clean Air Act (Title V) permit data is not currently ingested by this portal, so air-permit compliance is not shown here.
How Oklahoma compares across two EPA disclosure measures
The highlighted point is Oklahoma. The vertical axis is the share of tracked water systems with at least one health-based SDWIS record; the horizontal axis is TRI-reported pounds per facility on a logarithmic scale so the full state distribution stays readable. The crosshairs use the portal’s published national benchmark medians.
This matrix compares disclosure rates, not toxicity, exposure, current compliance, or drinking-water safety. A lower position on either axis is not a safety rating; use the underlying facility and water-system records for context.
According to EPA TRI, SDWIS, and Superfund NPL extracts, Oklahoma (OK) lists 485 TRI-reporting facilities disclosing 166.2M lbs of toxic releases. The same extracts list 18 Superfund sites and 882 EPA-regulated water systems, of which 811 carry health-based SDWIS violation rows. PlainEnviro's composite environmental health score for Oklahoma is 28/100 (grade F), benchmarked against all U.S. states on chemical release intensity, drinking-water health violations, Superfund site burden, and water violation rate. This is a percentile-derived composite from federal disclosure counts, not a clinical health-risk assessment.
F 28
Oklahoma Environmental Health Score
A percentile-benchmarked 0–100 composite from 4 EPA federal datasets, with weight redistribution for any unavailable dimension
Chemical Release Intensity D 61
343K (lbs per facility) Drinking Water Health Violations F 5
92.0% (% of systems) Superfund Site Burden F 38
3.7 (sites per 100 facilities) Water Violation Rate F 5
33.1 (violations per system) Benchmarks derived from EPA TRI, SDWIS, and Superfund NPL extracts across all 56 U.S. states and territories
Water Systems
882
Moderate
Superfund Sites
18
Moderate
Total Releases
166.2M lbs
Very high
Compliance Snapshot - OK
Sites with no recorded health violations 40.7%
Sites with at least one open violation 59.3%
Oklahoma's profile joins three independently maintained EPA programs into one statewide record: the Toxics Release Inventory (TRI, EPCRA Section 313 industrial disclosures), the Safe Drinking Water Information System (SDWIS, Safe Drinking Water Act compliance), and the Superfund National Priorities List. Each program uses its own reporting cadence and facility-identification scheme; PlainEnviro joins them by matched facility and system location rather than a shared federal ID, so a site absent from one program is never assumed absent from another. The counts below reflect the portal's rebuild as of August 2026.
Activity clusters in counties such as Tulsa, Oklahoma, Rogers, which account for the highest combined facility, water-system, and Superfund presence. Monitoring and reporting violations are not included in the SDWIS counts shown here.
Every figure reflects the public regulatory record as filed with the U.S. Environmental Protection Agency and is not weighted for toxicity, geographic footprint, or population exposure. A state can rank high in any individual metric because of industrial history, naturally occurring contaminants in source water, or simply the number of reporting facilities, not because current residents face unsafe conditions. Drill into any county or water system below for the full disclosure record.
What does this state's environmental record show?
TRI Facilities
485
Water Systems
882
Superfund Sites
18
Health-Based Violation Records
29,177
Total Releases
166.2M lbs
cumulative, all reported years
Systems with Records
811
water systems
Release-over-release change
What changed for Oklahoma: EPA TRI 2023 reporting year
Same facilities, both years
+2.1%
381 facilities that filed in 2022 and 2023
Whole inventory
+1.8%
34.8 million lb → 35.4 million lb, every facility that filed
Between the two reporting years, 20 facilities filed for the first time and 17 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Oklahoma's total reported releases rose from 34.6 million lb in 2022 to 35.3 million lb in 2023, based on EPA TRI filings.
- Oklahoma's off-site transfers rose from 3.3 million lb in 2022 to 4.5 million lb in 2023, based on EPA TRI filings.
- Oklahoma's water releases rose from 4.2 million lb in 2022 to 4.9 million lb in 2023, based on EPA TRI filings.
- Oklahoma's land releases fell from 8.7 million lb in 2022 to 7.6 million lb in 2023, based on EPA TRI filings.
Largest Polluters
View all →| # | Facility | Total Releases |
|---|---|---|
| 1 | International Paper Co | 28.8M lbs |
| 2 | Koch Fertilizer Enid LLC | 23.1M lbs |
| 3 | Clean Harbors Lone Mountain LLC Lone Mountain Facility | 15.9M lbs |
| 4 | Terra Nitrogen L.P. Verdigris Plant | 11.9M lbs |
| 5 | Pryor Solae | 11.8M lbs |
| 6 | Lsb Chemical L.L.C. | 8.3M lbs |
| 7 | A-Line Tds Inc. | 8.1M lbs |
| 8 | Tyson Poultry Inc-Broken Bow Processing Plant | 7.2M lbs |
| 9 | Terra International (oklahoma) Llc. | 6.4M lbs |
| 10 | Nucera Solutions LLC | 4.1M lbs |
| 11 | US Ecology Tulsa Inc | 3.5M lbs |
| 12 | Oge Energy Corp River Valley Generating Station | 2.4M lbs |
| 13 | Phillips 66 Ponca City Site | 2.0M lbs |
| 14 | Real Alloy Recycling LLC | 1.5M lbs |
| 15 | Wynnewood Refining Co | 1.4M lbs |
| 16 | Huberengineered Woods LLC | 1.4M lbs |
| 17 | Oge Energy Corp Sooner Generating Station | 1.4M lbs |
| 18 | Hf Siinclair Tulsa Refining LLC East Facility | 1.1M lbs |
| 19 | Webco Industries Inc. Star Center Tube | 1.1M lbs |
| 20 | Jupiter Sulphur LLC | 1.0M lbs |
Water Quality
Systems with Health Violations
| Water System | Population | Violations |
|---|---|---|
| HOMINY | 2,584 | 584 |
| MAYSVILLE | 1,212 | 407 |
| BARNSDALL | 1,243 | 390 |
| WEWOKA PUBLIC WORKS AUTHORITY | 3,450 | 385 |
| SARDIS LAKE WATER AUTHORITY | 307 | 367 |
| CLEVELAND MUNICIPAL AUTHORITY | 3,262 | 342 |
| FAIRFAX | 1,555 | 313 |
| RYAN UTILITIES AUTHORITY | 800 | 303 |
| WAURIKA PUBLIC WORKS AUTHORITY | 2,100 | 281 |
| BEGGS | 1,364 | 279 |
| GRANDFIELD | 1,110 | 264 |
| OSAGE CO RWD #20 (HULAH) | 350 | 247 |
| CHOCTAW CO. RWSG & SWMD #6 | 850 | 239 |
| PUSHMATAHA CO. RWD #3 | 4,825 | 238 |
| EUFAULA PWA | 2,766 | 237 |
| PITTSBURG CO. RWD #14 | 1,680 | 229 |
| WAGONER CO. RWD #2 | 2,000 | 213 |
| BOSWELL PUBLIC WORKS AUTHORITY | 932 | 211 |
| MUSKOGEE CO. RWD #3 | 1,300 | 210 |
| STRINGTOWN PWA | 1,105 | 206 |
Cities with Water Issues
Edmond
15 water systems
Lawton
11 water systems
Mcalester
10 water systems
Oklahoma City
9 water systems
Claremore
9 water systems
Ponca City
8 water systems
Nowata
7 water systems
Enid
6 water systems
Norman
6 water systems
Bartlesville
6 water systems
Tahlequah
6 water systems
Vinita
6 water systems
Afton
6 water systems
Checotah
6 water systems
Hulbert
6 water systems
Ochelata
6 water systems
Pryor
5 water systems
Shawnee
5 water systems
Madill
5 water systems
Stillwater
5 water systems
Superfund Sites (18)
| Site Name | Status | HRS Score |
|---|---|---|
| Compass Industries (Avery Drive) | Deleted NPL Site | 36.57 |
| Double Eagle Refinery Co. | Deleted NPL Site | 30.83 |
| Eagle Industries | NPL Site | 50.00 |
| Fansteel Metals/FMRI | NPL Site | 0.00 |
| Fourth Street Abandoned Refinery | Deleted NPL Site | 30.67 |
| Hardage/Criner | NPL Site | 51.01 |
| Henryetta Iron and Metal | NPL Site | 49.33 |
| Hudson Refinery | NPL Site | 29.34 |
| Imperial Refining Company | Deleted NPL Site | 30.00 |
| Mosley Road Sanitary Landfill | Deleted NPL Site | 38.06 |
| National Zinc Corp. | Proposed NPL Site | 50.00 |
| Oklahoma Refining Co. | NPL Site | 46.01 |
| Sand Springs Petrochemical Complex | Deleted NPL Site | 28.86 |
| Tar Creek (Ottawa County) | NPL Site | 58.15 |
| Tenth Street Dump/Junkyard | Deleted NPL Site | 30.98 |
| Tinker Air Force Base (Soldier Creek/Building 3001) | NPL Site | 42.24 |
| Tulsa Fuel and Manufacturing | Deleted NPL Site | 50.00 |
| Wilcox Oil Company | NPL Site | 50.00 |
Counties (77 total)
| County | Facilities |
|---|---|
| Tulsa | 107 |
| Oklahoma | 63 |
| Rogers | 34 |
| Muskogee | 16 |
| Creek | 17 |
| Grady | 15 |
| Canadian | 18 |
| Garfield | 8 |
| Mayes | 15 |
| Comanche | 6 |
| Osage | 2 |
| Cleveland | 10 |
| Delaware | 2 |
| Le Flore | 4 |
| Pittsburg | 5 |
| Kay | 10 |
| Ottawa | 7 |
| Pottawatomie | 7 |
| Cherokee | 1 |
| Mccurtain | 8 |
Showing top 20 counties by environmental activity. Oklahoma has 77 counties total.
Cities with Environmental Records
Tulsa
95 facilities · 4 water systems
Oklahoma City
62 facilities · 9 water systems
Catoosa
18 facilities · 1 water systems
Pryor
14 facilities · 5 water systems
Muskogee
13 facilities · 4 water systems
Ardmore
10 facilities · 3 water systems
Sand Springs
10 facilities · 3 water systems
Broken Arrow
10 facilities · 2 water systems
Claremore
8 facilities · 9 water systems
Enid
7 facilities · 6 water systems
Norman
7 facilities · 6 water systems
Shawnee
7 facilities · 5 water systems
Ponca City
6 facilities · 8 water systems
Chickasha
6 facilities · 3 water systems
Durant
6 facilities · 2 water systems
Duncan
6 facilities · 1 water systems
Mcalester
5 facilities · 10 water systems
Ada
5 facilities · 4 water systems
El Reno
5 facilities · 4 water systems
Broken Bow
5 facilities · 3 water systems
Frequently Asked Questions
How many TRI facilities are in Oklahoma? ▼
Oklahoma has 485 facilities that report to the EPA Toxic Release Inventory (TRI). These facilities have collectively reported 166.2M lbs in total toxic chemical releases. TRI data is self-reported annually by facilities that manufacture, process, or use listed toxic chemicals above threshold amounts.
Does Oklahoma have Superfund sites? ▼
Yes, Oklahoma has 18 sites on the EPA Superfund National Priorities List (NPL). Superfund sites are contaminated locations identified for long-term cleanup under the EPA Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA).
What does EPA SDWIS list for drinking water in Oklahoma? ▼
Oklahoma has 882 EPA-regulated water systems in the Safe Drinking Water Information System (SDWIS) extract used here. 811 water systems have a health-based violation row (MCL exceedance) in this historical extract. A past registry row is not a current drinkability verdict. For current utility conditions, contact the local water utility or the Oklahoma drinking water program. Source: EPA SDWIS.
What environmental data is available for Oklahoma? ▼
PlainEnviro provides three categories of EPA environmental data for Oklahoma: Toxic Release Inventory (TRI) data covering 485 industrial facilities, Safe Drinking Water Information System (SDWIS) data for 882 water systems, and Superfund National Priorities List (NPL) data for 18 contaminated sites.
How does Oklahoma compare to other states on EPA disclosure counts? ▼
Oklahoma has 485 TRI facilities with 166.2M lbs in total releases, 18 Superfund sites, and 29,177 water system violations on record. These are federal disclosure counts; they are not toxicity-weighted or population-adjusted risk scores. Source: EPA TRI, SDWIS, and Superfund NPL databases.
What is Oklahoma's environmental health score? ▼
PlainEnviro's composite environmental health score for Oklahoma is 28/100 (grade F). This score combines four percentile-benchmarked dimensions from EPA federal extracts: chemical release intensity per TRI facility, drinking-water health violation rate from SDWIS, Superfund site burden relative to industrial activity, and overall water violation rate. Scores are benchmarked against all 56 U.S. states and territories. When a dimension lacks data, its weight redistributes to the remaining dimensions so the score never deflates from missing inputs. This is a registry-count composite, not a clinical exposure or health-outcome assessment.
Explore More Data for Oklahoma
TRI Facilities in Oklahoma →
Every toxic-release facility reporting in the state, ranked by volume
Drinking Water Systems in Oklahoma →
Community water systems and their violation records
Air Quality in Oklahoma →
County-level AQI from EPA monitoring stations
Compare states by burden →
EJ screening scores for every U.S. county
State environmental rankings →
How states compare on releases, water and Superfund
Browse all states →
Environmental profiles for every U.S. state
About This Data
This page aggregates environmental data from three EPA programs for Oklahoma: the Toxic Release Inventory (TRI) for industrial chemical releases, the Safe Drinking Water Information System (SDWIS) for water quality, and the Superfund National Priorities List (NPL) for hazardous waste cleanup sites.
PlainEnviro presents this data without advocacy framing. Numbers reflect reported data and may not capture all environmental activity. For specific health or environmental concerns, contact your state environmental agency.
What to do with Oklahoma's data
Use this state profile as a starting point, then drill into the specific dataset that matters to you.
- Check the 485 TRI facilities reporting in Oklahoma for the largest reported releases near a specific county. View facilities
- 811 water systems in the state have a recorded health-based violation, check if yours is one of them. Check water systems
- See how Oklahoma compares to other states on releases, water violations, and Superfund sites. State rankings
Reported data reflects what facilities and agencies disclose to the EPA; it is not a complete measure of environmental risk or a substitute for local guidance.
Use and verify this record
Oklahoma's profile brings together EPA release, drinking-water, and Superfund records. It reports the underlying programs without making a health or environmental-risk determination.
State environmental figures are computed directly from EPA data. The methodology records the joins, definitions, and refresh cadence for each program.
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.