Non-Compliance
TRI Reporter
Clean Air Act
Clean Water Act
RCRA
THE UNITED STATES GYPSUM COMPANY - BALTIMORE PLANT
Quick Summary
- •Released 35 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 $0 in total penalties since records began.
- Address
-
5500 QUARANTINE ROAD
BALTIMORE, MD 21226
View on map ↗ - County
- BALTIMORE CITY County
- Industry
- Manufacturing
- NAICS (North American Industry Classification)
- 327420
- Inspections
- 5 · last Oct 28, 2025
- Total Penalties
- $0
- Registry ID
- 110002463833
How This Compares
#85
of 156 TRI reporters in MD
#10,866
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.
0
Air (CAA)
Qtrs Non-Compliant
Qtrs Non-Compliant
5
Water (CWA)
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)
+46% overall
| Year | Total Releases (lbs) | vs Prior Year |
|---|---|---|
| 2015 | 31 | — |
| 2016 | 31 | -1% |
| 2017 | 35 | +12% |
| 2018 | 37 | +6% |
| 2019 | 0 | -99% |
| 2020 | 38 | +9445% |
| 2021 | 44 | +15% |
| 2022 | 47 | +8% |
| 2023 | 56 | +18% |
| 2024 | 45 | -19% |
2024
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Mercury compounds | 45 | 45 | — | — | 5 | |
| Lead compounds | 0 | 0 | 0 | — | 116 |
2023
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Mercury compounds | 56 | 56 | — | — | 5 | |
| Lead compounds | 0 | 0 | 0 | — | 75 |
2022
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Mercury compounds | 47 | 47 | 0 | — | 6 | |
| Lead compounds | 0 | 0 | 0 | — | 53 |
2021
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Mercury compounds | 44 | 44 | 0 | — | 5 | |
| Lead compounds | 0 | 0 | 0 | — | 35 |
2020
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Mercury compounds | 38 | 38 | 0 | — | 4 | |
| Lead compounds | 0 | 0 | 0 | — | 30 |
2019
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Lead compounds | 0 | 0 | 0 | — | 25 |
2018
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Mercury compounds | 37 | 37 | 0 | — | 1 | |
| Lead compounds | 0 | 0 | 0 | — | 13 |
2017
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Mercury compounds | 34 | 34 | — | — | 0 | |
| Lead compounds | 1 | 1 | — | — | 20 |
2016
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Mercury compounds | 31 | 31 | — | — | 0 | |
| Lead compounds | 0 | 0 | — | — | 12 |
2015
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Mercury compounds | 31 | 31 | — | — | 0 | |
| Lead compounds | 0 | 0 | — | — | 13 |
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 |
|---|---|---|---|---|
| Mercury compounds | — | 1 | — | — |
| Lead compounds | — | 29 | — | — |
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 |
|---|---|---|---|---|---|
|
USA GYPSUM
DENVER, PA
|
Lead compounds | — | 29 | — | — |
|
QUARANTINE ROAD LANDFILL
BALTIMORE, MD
|
Lead compounds | 45 | — | — | — |
|
L & J PROCESSING
BALTIMORE, MD
|
Lead compounds | 42 | — | — | — |
|
L & J PROCESSING
BALTIMORE, MD
|
Mercury compounds | 2 | — | — | — |
|
QUARANTINE ROAD LANDFILL
BALTIMORE, MD
|
Mercury compounds | 2 | — | — | — |
|
USA GYPSUM
DENVER, PA
|
Mercury compounds | — | 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 |
|---|---|---|
| Mercury compounds | — | BACK RIVER WASTEWATER TREATMENT FACILITY, BALTIMORE |
| Lead compounds | 0 | BACK RIVER WASTEWATER TREATMENT FACILITY, BALTIMORE |
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 |
|---|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 57.00 mg/L | 45.00 | +27% | Jan 2022 | Open |
| Enterococci | DMR, Limited - Numeric Violation | 248.00 MPN/100mL | 35.00 | +609% | Jul 2021 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 58.00 mg/L | 45.00 | +29% | Feb 2020 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 0.66 kg/d | 0.48 | +39% | Nov 2018 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 0.38 kg/d | 0.24 | +61% | Oct 2018 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 0.61 kg/d | 0.48 | +28% | Oct 2018 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 0.32 kg/d | 0.24 | +35% | Sep 2018 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 0.55 kg/d | 0.48 | +14% | Sep 2018 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 2.37 mg/L | 5.00 | +53% | Sep 2018 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 0.28 kg/d | 0.24 | +16% | Aug 2018 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 0.50 kg/d | 0.48 | +5% | Aug 2018 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 2.10 mg/L | 5.00 | +58% | Jun 2018 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 4.88 mg/L | 5.00 | +2% | Mar 2018 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 0.61 kg/d | 0.48 | +28% | Dec 2017 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 2.59 mg/L | 5.00 | +48% | Dec 2017 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 0.56 kg/d | 0.48 | +18% | Nov 2017 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 0.33 kg/d | 0.24 | +37% | Oct 2017 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 0.52 kg/d | 0.48 | +10% | Oct 2017 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 1.30 mg/L | 5.00 | +74% | Sep 2017 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 0.26 kg/d | 0.24 | +9% | Sep 2017 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 46.00 mg/L | 45.00 | +2% | May 2017 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 0.52 kg/d | 0.48 | +10% | Dec 2016 | Open |
| Enterococci | DMR, Limited - Numeric Violation | 50.00 MPN/100mL | 35.00 | +43% | Nov 2016 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 0.48 kg/d | 0.48 | +1% | Nov 2016 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 0.27 kg/d | 0.24 | +15% | Oct 2016 | Open |
| Chlorine, total residual | DMR, Limited - Numeric Violation | 0.19 mg/L | 0.10 | +90% | Dec 2015 | Open |
| Chlorine, total residual | DMR, Limited - Numeric Violation | 0.15 mg/L | 0.10 | +50% | Dec 2015 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 0.59 kg/d | 0.48 | +24% | Dec 2015 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 0.53 kg/d | 0.48 | +12% | Nov 2015 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 0.49 kg/d | 0.48 | +3% | Oct 2015 | Open |
| Enterococci | DMR, Limited - Numeric Violation | 52.00 MPN/100mL | 35.00 | +49% | Oct 2015 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 0.30 kg/d | 0.24 | +24% | Oct 2015 | Open |
| Nitrogen, total [as N] | DMR, Limited - Numeric Violation | 0.24 kg/d | 0.24 | +2% | Sep 2015 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 4.00 mg/L | 5.00 | +20% | Sep 2015 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 3.80 mg/L | 5.00 | +24% | Sep 2015 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 4.20 mg/L | 5.00 | +16% | Aug 2015 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 4.50 mg/L | 5.00 | +10% | Jul 2015 | Open |
| Enterococci | DMR, Limited - Numeric Violation | 1,701.84 MPN/100mL | 35.00 | +4,762% | Apr 2015 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 50.00 mg/L | 45.00 | +11% | Apr 2015 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 61.00 mg/L | 45.00 | +36% | Feb 2015 | Open |
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