PADUCAH GASEOUS DIFFUSION PLANT
Quick Summary
- •Released 48 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 $11,986 in total penalties since records began.
- Address
-
5600 HOBBS ROAD, MAIL STOP 7437
PADUCAH, KY 42001
View on map ↗ - County
- MCCRACKEN County
- Industry
- Manufacturing
- NAICS (North American Industry Classification)
- 325180
- Inspections
- 16 · last Nov 17, 2025
- Total Penalties
- $11,986 · last Apr 22, 2024
- Registry ID
- 110060257671
How This Compares
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.
Qtrs Non-Compliant
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.
| Year | Total Releases (lbs) | vs Prior Year |
|---|---|---|
| 2015 | 42 | — |
| 2016 | 2 | -95% |
| 2017 | 48 | +2300% |
| 2018 | 42 | -13% |
| 2020 | 9 | — |
| 2021 | 6 | -33% |
| 2022 | 63 | +950% |
| 2023 | 44 | -30% |
| 2024 | 88 | +100% |
2024
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Hydrogen fluoride | 88 | 88 | — | — | 8,862 |
2023
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Chlorine | — | — | — | — | — | |
| Hydrogen fluoride | 44 | 44 | — | — | 596 |
2022
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Chlorine | — | — | — | — | — | |
| Hydrogen fluoride | 63 | 63 | — | — | 34,358 |
2021
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Chlorine | — | — | — | — | — | |
| Hydrogen fluoride | 6 | 6 | — | — | 410 |
2020
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Chlorine | — | — | — | — | — | |
| Hydrogen fluoride | 9 | 9 | — | — | 155 |
2018
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Chlorine | — | — | — | — | — | |
| Hydrogen fluoride | 42 | 42 | — | — | 76 |
2017
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Chlorine | — | — | — | — | — | |
| Hydrogen fluoride | 48 | 48 | — | — | 139 |
2016
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Chlorine | — | — | — | — | — | |
| Hydrogen fluoride | 2 | 2 | — | — | 394 |
2015
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Chlorine | — | — | — | — | — | |
| Hydrogen fluoride | 42 | 42 | — | — | 77 |
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 |
|---|
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 |
|---|---|---|---|---|---|
|
WASTE CONTROL SPECIALISTS
ANDREWS, TX
|
Hydrogen fluoride | 6,676 | — | — | — |
|
AES ENVIRONMENTAL, LLC
CALVERT CITY, KY
|
Hydrogen fluoride | 2,186 | — | — | — |
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 |
|---|---|---|---|---|
| cwa | Effluent Violations - Failed Toxicity Test | Feb 14, 2025 | — | Open |
| rcra | Standards Applicable to Generators of HW: General | Apr 16, 2024 | Apr 17, 2024 | Resolved |
| cwa | Effluent Violations - Failed Toxicity Test | May 11, 2023 | — | Open |
| cwa | Effluent Violations - Failed Toxicity Test | Oct 7, 2020 | — | Open |
| cwa | Effluent Violations - Failed Toxicity Test | Apr 14, 2020 | — | Open |
| rcra | Standards Applicable to Generators of HW: General | Aug 28, 2019 | Aug 28, 2019 | Resolved |
| cwa | Management Practice Violations - Improper Operation and Maintenance | Mar 7, 2019 | — | Open |
| rcra | Standards Applicable to Generators of HW: General | Apr 25, 2018 | Apr 25, 2018 | Resolved |
| rcra | Standards for Used Oil: Generators | Apr 25, 2018 | Apr 25, 2018 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Apr 25, 2018 | Apr 25, 2018 | Resolved |
| cwa | Effluent Violations - Failed Toxicity Test | Aug 7, 2017 | — | Open |
| cwa | Effluent Violations - Failed Toxicity Test | Jul 21, 2017 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Jul 18, 2017 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Jul 17, 2017 | — | Open |
| cwa | Permit Violations - Violation Specified in Comment | Jul 20, 2015 | — | Open |
| cwa | Effluent Violations - Narrative Effluent Violation | Apr 10, 2015 | — | Open |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Mar 13, 2015 | Mar 13, 2015 | Resolved |
| cwa | Permit Violations - Violation Specified in Comment | Aug 26, 2014 | — | Open |
| cwa | Effluent Violations - Unauthorized Discharge | Oct 1, 2013 | — | Open |
| cwa | Schedule Event unachieved but reported | Jul 16, 2013 | — | Open |
| cwa | Schedule Event unachieved and not reported | Jul 16, 2013 | — | Open |
| cwa | Schedule Event achieved late but reported | Jul 16, 2013 | — | Open |
| cwa | Schedule Event reported late | Jul 16, 2013 | — | Open |
| rcra | Standards for Universal Waste Management: Standards for Small Quantity Handlers | Jan 8, 2013 | Jan 22, 2013 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: General Facility Standards | Jan 8, 2013 | Jan 22, 2013 | Resolved |
| cwa | Effluent Violations - Unapproved Bypass | Jan 1, 2012 | — | Open |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Use and Management of Containers | Jan 19, 2006 | Jan 19, 2006 | Resolved |
| rcra | Standards Applicable to Generators of HW: Manifest Requirements Applicable to Small and Large Quantity Generators | Sep 20, 2005 | Dec 13, 2005 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Jan 27, 2005 | Jun 30, 2005 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: General Facility Standards | Jul 9, 2002 | Oct 3, 2003 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Jul 9, 2002 | Oct 3, 2003 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: General Facility Standards | May 3, 2002 | Oct 3, 2003 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | May 3, 2002 | Oct 3, 2003 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Mar 12, 2002 | Oct 3, 2003 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Mar 12, 2002 | Oct 3, 2003 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: General Facility Standards | Mar 12, 2002 | Oct 3, 2003 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: General Facility Standards | Oct 9, 2001 | Oct 3, 2003 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: General Facility Standards | Jul 31, 2001 | Oct 2, 2003 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Ground-Water Monitoring | Jul 30, 2001 | Oct 5, 2001 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: General Facility Standards | Mar 13, 2001 | Oct 3, 2003 | Resolved |
| rcra | EPA Administered Permit Programs: the HW Permit Program Permit Application | Sep 5, 2000 | Oct 2, 2003 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Sep 5, 2000 | Oct 2, 2003 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: General Facility Standards | Aug 3, 2000 | Oct 2, 2003 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Aug 3, 2000 | Oct 2, 2003 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: Use and Management of Containers | Jul 27, 2000 | Oct 2, 2003 | Resolved |
| rcra | EPA Administered Permit Programs: the HW Permit Program Permit Application | May 4, 2000 | Jul 12, 2000 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: Special Provisions for Cleanup | Nov 4, 1999 | Oct 2, 2003 | Resolved |
| rcra | EPA Administered Permit Programs: the HW Permit Program Permit Application | Aug 30, 1999 | Oct 1, 1999 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | May 28, 1998 | Jun 4, 1998 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Jun 2, 1997 | Jun 11, 1997 | Resolved |
Discharge Limit Exceedances
Instances where this facility's reported discharge monitoring results exceeded its permitted limits under the Clean Water Act. Exceedance percentage shows how far over the permit limit the discharge was.
| Pollutant | Violation | Reported | Limit | Exceedance | Period | Status |
|---|---|---|---|---|---|---|
| Solids, total suspended | DMR, Limited - Numeric Violation | 61.00 mg/L | 60.00 | +2% | Nov 2025 | Open |
| Toxicity | DMR, Limited - Numeric Violation | 1.10 toxic | 1.00 | +10% | Dec 2024 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.15 mg/L | 0.12 | +24% | Sep 2024 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 41.00 mg/L | 30.00 | +37% | Apr 2024 | Open |
| Toxicity | DMR, Limited - Numeric Violation | 1.10 toxic | 1.00 | +10% | Sep 2023 | Open |
| Mercury, total recoverable | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +22% | Jun 2023 | Resolved |
| Mercury, total recoverable | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +50% | May 2023 | Resolved |
| Solids, total suspended | DMR, Limited - Numeric Violation | 54.00 mg/L | 30.00 | +80% | Apr 2023 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 91.00 mg/L | 60.00 | +52% | Apr 2023 | Open |
| Toxicity | DMR, Limited - Numeric Violation | 6.26 toxic | 1.00 | +526% | Sep 2022 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 96.00 mg/L | 60.00 | +60% | Jun 2021 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.33 mg/L | 0.12 | +179% | Jun 2021 | Open |
| Toxicity | DMR, Limited - Numeric Violation | 1.14 toxic | 1.00 | +14% | Jun 2020 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 159.00 mg/L | 60.00 | +165% | Jan 2020 | Open |
| Toxicity | DMR, Limited - Numeric Violation | 2.06 toxic | 1.00 | +106% | Dec 2019 | Open |
| Toxicity | DMR, Limited - Numeric Violation | 1.02 toxic | 1.00 | +2% | Sep 2019 | Open |
| Toxicity | DMR, Limited - Numeric Violation | 2.97 toxic | 1.00 | +197% | Dec 2018 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.15 mg/L | 0.12 | +27% | Feb 2018 | Open |
| Toxicity | DMR, Limited - Numeric Violation | 1.53 toxic | 1.00 | +53% | Sep 2017 | Open |
| Toxicity | DMR, Limited - Overdue | 1.53 toxic | 1.00 | +53% | Sep 2017 | Resolved |
| Toxicity, final conc toxicity units | DMR, Limited - Numeric Violation | 7.19 toxic | 1.00 | +619% | Jun 2017 | Open |
| Toxicity, final conc toxicity units | DMR, Limited - Numeric Violation | 7.35 toxic | 1.00 | +635% | Jun 2017 | Open |
| Toxicity, final conc toxicity units | DMR, Limited - Numeric Violation | 1.09 toxic | 1.00 | +9% | Jun 2017 | Open |
| Toxicity, final conc toxicity units | DMR, Limited - Numeric Violation | 8.00 toxic | 1.00 | +700% | May 2017 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 47.50 mg/L | 45.00 | +6% | Mar 2017 | Open |
| Toxicity, final conc toxicity units | DMR, Limited - Numeric Violation | 5.70 toxic | 1.00 | +470% | Dec 2016 | Open |
| Toxicity, final conc toxicity units | DMR, Limited - Numeric Violation | 2.30 toxic | 1.00 | +130% | Nov 2015 | Open |
| Toxicity, final conc toxicity units | DMR, Limited - Numeric Violation | 2.23 toxic | 1.00 | +123% | Oct 2015 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 45.00 mg/L | 30.00 | +50% | Sep 2015 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 137.00 mg/L | 60.00 | +128% | Sep 2015 | Open |
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.