Non-Compliance
TRI Reporter
Clean Air Act
RCRA
PRYOR CHEM CO
Quick Summary
- •Released 1,168,389 lbs of toxic chemicals to the environment in the most recent TRI reporting year.
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $38,000 in total penalties since records began.
- •Reports releases of chemicals classified as known or probable carcinogens.
- Address
-
4463 HUNT ST
PRYOR, OK 74361
View on map ↗ - County
- MAYES County
- Industry
- Manufacturing
- NAICS (North American Industry Classification)
- 325311
- Inspections
- 3 · last Jun 27, 2025
- Total Penalties
- $38,000 · last Jul 19, 2021
- Registry ID
- 110000598531
How This Compares
#7
of 314 TRI reporters in OK
#179
of 16,877 TRI reporters in Manufacturing
Ranked by most recent year's total TRI releases.
Compliance Status (Last 12 Quarters)
Number of calendar quarters, out of the last 12, in which this facility was in violation of its permit. Zero means no recorded violations in that program over the past three years.
1
Air (CAA)
Qtrs Non-Compliant
Qtrs Non-Compliant
0
Hazardous Waste (RCRA)
Qtrs Non-Compliant
Qtrs Non-Compliant
TRI Toxic Chemical Releases
Annual pounds of each toxic chemical released to air, water, and land, as reported to the EPA Toxic Release Inventory. Carcinogen (♦) and PFAS designations are per EPA and IARC classifications.
Emissions Trend (2015–2024)
+143% overall
| Year | Total Releases (lbs) | vs Prior Year |
|---|---|---|
| 2015 | 1,418,636 | — |
| 2016 | 1,496,160 | +5% |
| 2017 | 1,168,389 | -22% |
| 2018 | 2,046,836 | +75% |
| 2019 | 2,305 | -100% |
| 2020 | 1,384,952 | +59993% |
| 2021 | 1,234,314 | -11% |
| 2022 | 2,021,391 | +64% |
| 2023 | 2,588,640 | +28% |
| 2024 | 3,440,942 | +33% |
2024
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitric acid | — | — | — | — | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 2,667,155 | — | 28,814 | 2,638,341 | 247 | |
| Ammonia | 773,745 | 574,489 | — | 199,255 | 471 | |
| Zinc compounds | 22 | 7 | — | 15 | 2,813 | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 13 | — | — | 13 | 10,516 | |
| Copper compounds | 7 | 7 | — | — | 33,452 |
2023
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Cobalt compounds | — | — | — | — | — | ♦ Carcinogen |
| Nitric acid | — | — | — | — | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 1,787,848 | — | 15,892 | 1,771,956 | 162 | |
| Ammonia | 800,786 | 617,866 | — | 182,920 | 529 | |
| Copper compounds | 6 | 6 | — | — | 1 |
2022
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Copper compounds | — | — | — | — | 1 | |
| Nitric acid | — | — | — | — | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 1,333,432 | — | 59,666 | 1,273,766 | 276 | |
| Ammonia | 687,955 | 570,134 | — | 117,820 | 240 | |
| Nickel compounds | 5 | — | — | 5 | 14,144 | ♦ Carcinogen |
2021
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitric acid | — | — | — | — | — | |
| Ammonia | 658,341 | 590,389 | — | 67,952 | 187 | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 575,958 | 313 | 63,993 | 511,652 | 3,789 | |
| Copper compounds | 15 | — | — | 15 | 28,134 |
2020
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitric acid | — | — | — | — | — | |
| Ammonia | 806,439 | 742,101 | — | 64,338 | 2,095 | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 574,555 | 390 | 103,161 | 471,004 | 3,895 | |
| Methanol | 3,888 | 3,768 | — | 120 | 120 | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 37 | — | — | 37 | 7,582 | |
| Copper compounds | 15 | — | — | 15 | 53 | |
| Zinc compounds | 15 | — | — | 15 | 48 | |
| Nickel compounds | 5 | — | — | 5 | 4,096 | ♦ Carcinogen |
2019
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Methanol | 2,162 | 2,050 | — | 112 | 112 | |
| Chlorine | 87 | 50 | — | 37 | 472 | |
| Copper compounds | 27 | 10 | — | 17 | 40,224 | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 18 | 3 | — | 15 | 33,249 | |
| Nickel compounds | 11 | 6 | — | 5 | 24,671 | ♦ Carcinogen |
2018
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitric acid | — | — | — | — | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 1,554,465 | 307 | 61 | 1,554,097 | 3,719 | |
| Ammonia | 488,199 | 368,385 | 1 | 119,813 | 395 | |
| Methanol | 2,970 | 2,840 | — | 130 | 130 | |
| Nickel compounds | 500 | 500 | — | — | 12 | ♦ Carcinogen |
| Copper compounds | 500 | 500 | — | — | 8 | |
| Chlorine | 202 | 81 | 1 | 120 | 820 |
2017
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitric acid | — | — | — | — | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 730,354 | 290 | — | 730,064 | 3,305 | |
| Ammonia | 432,853 | 321,283 | — | 111,570 | 631 | |
| Methanol | 3,950 | 3,830 | — | 120 | 120 | |
| Nickel compounds | 500 | 500 | — | — | 13,615 | ♦ Carcinogen |
| Copper compounds | 500 | 500 | — | — | 6,065 | |
| Chlorine | 232 | 100 | — | 133 | 1,651 |
2016
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitric acid | — | — | — | — | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 962,723 | 302 | — | 962,420 | 2,950 | |
| Ammonia | 527,882 | 349,564 | — | 178,318 | 544 | |
| Methanol | 4,264 | 4,170 | — | 94 | 94 | |
| Nickel compounds | 500 | 500 | — | — | 1,821 | ♦ Carcinogen |
| Copper compounds | 500 | 500 | — | — | 48,758 | |
| Chlorine | 292 | 100 | — | 192 | 1,656 |
2015
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitric acid | — | — | — | — | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 1,078,749 | 179 | — | 1,078,570 | 1,283 | |
| Ammonia | 334,969 | 208,239 | — | 126,730 | 436 | |
| Methanol | 3,659 | 3,595 | — | 64 | 64 | |
| Copper compounds | 500 | 500 | — | — | 7,144 | |
| Nickel compounds | 500 | 500 | — | — | 4,282 | ♦ Carcinogen |
| Chlorine | 259 | 100 | — | 159 | 1,345 |
Waste Management & Recycling
How this facility manages toxic chemicals beyond direct releases — through recycling, energy recovery, and on-site or off-site treatment. Data from the most recent TRI reporting year. Quantities in pounds.
| Chemical | Released | Recycled | Energy Recovery | Treated |
|---|---|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | — | — | — | 247 |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | — | 10,515 | — | — |
| Zinc compounds | — | 2,812 | — | — |
| Copper compounds | — | 33,451 | — | — |
Off-Site Transfer Destinations
Facilities to which toxic chemicals were transferred for disposal, recycling, energy recovery, or treatment during the most recent TRI reporting year. Quantities in pounds.
| Destination | Chemical | Disposal | Recycling | Energy Rec. | Treatment |
|---|---|---|---|---|---|
|
IRA INDUSTRIAL
DICKINSON, TX
|
Copper compounds | — | 33,231 | — | — |
|
IRA INDUSTRIAL
DICKINSON, TX
|
Zinc compounds | — | 2,812 | — | — |
|
YAFFE IRON & METAL CO., INC.
MUSKOGEE, OK
|
Copper compounds | — | 220 | — | — |
|
CLEAN HARBORS DEER PARK
DEER PARK, TX
|
Chromium compounds (except for chromite ore mined in the Transvaal Region) | 1 | — | — | — |
|
YAFFE IRON & METAL CO., INC.
MUSKOGEE, OK
|
Chromium compounds (except for chromite ore mined in the Transvaal Region) | — | 10,515 | — | — |
|
CLEAN HARBORS DEER PARK
DEER PARK, TX
|
Ammonia | 1 | — | — | — |
Transfers to Publicly-Owned Treatment Works (POTWs)
Toxic chemicals transferred to municipal wastewater treatment plants during the most recent TRI reporting year. Quantities in pounds.
| Chemical | Transferred (lbs) | POTW |
|---|---|---|
| Ammonia | 470 | OOWA / TSC, PRYOR |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 1 | OOWA / TSC, PRYOR |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 247 | OOWA / TSC, PRYOR |
| Copper compounds | 1 | OOWA / TSC, PRYOR |
| Zinc compounds | 1 | OOWA / TSC, PRYOR |
Compliance Violations
Individual permit violations recorded by the EPA across air, water, and hazardous waste programs. Open violations are unresolved as of the most recent ECHO data update.
| Program | Type | Violation Date | Return to Compliance | Status |
|---|---|---|---|---|
| caa | — | — | — | Open |
| caa | — | — | — | Open |
| caa | FRV | Dec 2, 2025 | — | Open |
| caa | FRV | Jun 26, 2020 | — | Open |
| caa | FRV | Sep 4, 2019 | — | Open |
| caa | HPV | Mar 15, 2018 | Sep 16, 2020 | Resolved |
| caa | FRV | Jun 15, 2017 | — | Open |
| rcra | Standards Applicable to Generators of HW: General | May 17, 2013 | Sep 3, 2013 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | May 17, 2013 | Sep 3, 2013 | Resolved |
Enforcement Actions
Formal enforcement cases brought by the EPA or state agencies, including administrative orders and civil penalties assessed. Penalty amounts reflect what was formally assessed, not necessarily what was collected.
Date Out of Range
Clean Air Act
· Case 2600026434
Administrative - Formal
· Case 06-2021-3336 · Jul 19, 2021
$38,000
Administrative - Formal
Clean Air Act
· Case 3602770510 · Jul 19, 2021
$38,000
Administrative - Formal
Clean Air Act
· Case 3602770516 · Jul 16, 2021
$0
Administrative - Formal
· Case 06-2021-3337 · Jul 16, 2021
Notice of Violation
Clean Air Act
· Case 3601478459 · Jun 25, 2018
Administrative - Formal
· Case 06-2017-3322 · Jan 12, 2017
Administrative - Formal
· Case 06-2017-3321 · Jan 12, 2017
$37,500
Administrative - Formal
· Case 06-2014-3313 · Aug 18, 2014
$37,500
Judicial
· Case 06-2011-3401 · May 28, 2014
$478,125
Administrative - Formal
· Case 06-2013-0619 · Jun 26, 2013
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-OKD078661279-001 · Jun 25, 2013
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