Non-Compliance
TRI Reporter
Clean Air Act
Clean Water Act
RCRA
WESTLAKE COMPOUNDS LLC
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $0 in total penalties since records began.
- •Reports releases of chemicals classified as known or probable carcinogens.
- Address
-
20043 HWY 51
HAZLEHURST, MS 39083
View on map ↗ - County
- COPIAH County
- Industry
- Manufacturing
- NAICS (North American Industry Classification)
- 325991
- Inspections
- 2 · last Oct 26, 2022
- Total Penalties
- $0
- Registry ID
- 110000590655
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)
| Year | Total Releases (lbs) | vs Prior Year |
|---|---|---|
| 2015 | 0 | — |
| 2016 | 0 | — |
| 2017 | 0 | — |
| 2018 | 0 | — |
| 2020 | 0 | — |
| 2024 | 0 | — |
2024
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Acrylonitrile | — | — | — | — | — | ♦ Carcinogen |
| Chromium | — | — | — | — | — | |
| Diisononyl Phthalates (DINP) | — | — | — | — | — | |
| Styrene | — | — | — | — | — | ♦ Carcinogen |
| Methyl methacrylate | — | — | — | — | — |
2020
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Antimony compounds | — | — | — | — | 250 |
2018
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nickel compounds | — | — | — | — | — | ♦ Carcinogen |
| Antimony compounds | — | — | — | — | — | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | — | — | — | — | — |
2017
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Antimony compounds | — | — | — | — | — | |
| Nickel compounds | — | — | — | — | — | ♦ Carcinogen |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | — | — | — | — | — |
2016
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Antimony compounds | — | — | — | — | — | |
| Nickel compounds | — | — | — | — | — | ♦ Carcinogen |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | — | — | — | — | — |
2015
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nickel compounds | — | — | — | — | — | ♦ Carcinogen |
| Antimony compounds | — | — | — | — | — | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | — | — | — | — | — |
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 |
|---|
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 |
|---|---|---|---|---|---|---|
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.08 mg/L | 0.07 | +26% | Oct 2025 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 10.01 kg/d | 9.85 | +2% | Jul 2024 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.11 mg/L | 0.07 | +65% | Oct 2022 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.08 mg/L | 0.07 | +17% | Jun 2022 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.10 mg/L | 0.07 | +55% | May 2022 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.13 mg/L | 0.07 | +95% | Apr 2022 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.46 mg/L | 0.07 | +603% | Feb 2022 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.13 mg/L | 0.07 | +106% | Jan 2022 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.09 mg/L | 0.07 | +32% | Dec 2021 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.16 mg/L | 0.07 | +149% | Nov 2021 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 4.64 mg/L | 0.07 | +7,038% | May 2021 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.09 mg/L | 0.07 | +37% | May 2020 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 16.71 kg/d | 15.80 | +6% | Mar 2018 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 19.20 kg/d | 15.80 | +22% | Sep 2017 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.08 mg/L | 0.07 | +18% | Dec 2016 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 49.00 mg/L | 45.00 | +9% | Nov 2016 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 33.41 kg/d | 15.80 | +111% | Nov 2016 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.09 mg/L | 0.07 | +34% | Nov 2016 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 47.50 mg/L | 30.00 | +58% | Nov 2016 | Open |
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