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Mississippi Department of Environmental Quality


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The information contained in this report is obtained from MDEQ's enSite (electronic environmental Site Information System) System used by the Office of Pollution Control's Air Division, Environmental Permits Division and Environmental Compliance and Enforcement Division, and the Office of Geology's Mining and Reclamation Division. The purpose of the system is to support permitting and compliance activities of the Department of Environmental Quality. Regulatory programs that are supported by this database are the Surface Water National Pollutant Discharge Elimination System (NPDES) Program; the Air Title V, Construction and Operating Programs; the Solid and Hazardous Waste Programs; Geology Surface Mining and Reclamation Division; and the Waste Tire Program (the UST program is currently not supported). There are other regulatory programs within the Department that do not currently utilize this database including programs managed by the Office of Land and Water, and the Total Maximum Daily Load (TMDL) Program.

Westlake Compounds LLC, Westlake Global Compounds, Prairie

General Information

AI IDBranchSICCountyBasinStartEnd
10626Air 1
Haz Waste
Stormwater 401
Water 1
3087MonroeTombigbee River10/06/1982 


Physical and Mailing Address

Physical Address (Primary)Mailing Address
10068 Summit Drive
Prairie, MS 39756
10068 Summit Drive
Prairie, MS 39756


Permits and Alternate/Historic AI Identifiers

Alt IDAlt NameAlt TypeStart DateEnd Date
184000075North American Plastics, Inc.Air-State Operating06/02/200006/02/2000
MSR001736Georgia Gulf Chemicals and Vinyls, LLC, Prairie PlantGP-Baseline01/24/200612/06/2010
MSR001736Georgia Gulf Chemicals and Vinyls, LLC, Prairie PlantGP-Baseline12/06/201002/05/2013
MSR001736Axiall, LLCGP-Baseline02/05/201312/04/2014
MSR110083North American Plastics, Inc.GP-Sara Title III11/10/199210/25/1995
MSR000100784Georgia Gulf CorporationHazardous Waste-EPA ID08/16/200102/20/2013
MSR000100784Axiall LLCHazardous Waste-EPA ID02/20/2013 
10626Axiall, LLCNo Exposure Certification12/05/201411/24/2019
10626Westlake Compounds, LLCNo Exposure Certification11/13/201811/12/2023
10626Westlake Compounds, LLCNo Exposure Certification11/25/201911/24/2024
MS0039101North American Plastics, Inc.Water-NPDES11/13/199010/23/1994
MS0039101North American Plastics, LLCWater-NPDES06/11/200105/31/2006


Office of Pollution Control Contacts

NameAssignmentPhone Number
McNamara, JoeOffice of Pollution Control Air Compliance Manager(601) 961-5084
McNamara, JoeOffice of Pollution Control Air Compliance Staff(601) 961-5084
Bland, JeffreyOffice of Pollution Control Air Permit Manager(601) 961-5112
Bland, JeffreyOffice of Pollution Control Air Permit Staff(601) 961-5112
Caron, KristaOffice of Pollution Control Hazardous Waste Manager(601) 961-5719
Justice, BradleyOffice of Pollution Control Hazardous Waste Staff(601) 961-5064
Beasley, SaraOffice of Pollution Control Stormwater Compliance Manager(601) 961-5283
Beasley, SaraOffice of Pollution Control Stormwater Compliance Staff(601) 961-5283
Tomkins, TracyOffice of Pollution Control Water Permit Manager(601) 961-5622
Patel, SamarOffice of Pollution Control Water Permit Staff(601) 961-5331


Current Status of Individual Permit Applications

ProgramPermit TypePermit NumberStatus DateStatus Desc.
WaterNPDES RenewalMS003910106/11/2001Permit Issued


Current Status of General Permit Applications

ProgramPermit TypePermit NumberStatus DateStatus Desc.PDF
General PermitBaseline CoverageMSR00254910/18/2024Notice of Intent for General Permit Coverage Received click for document
General PermitNo Exposure CertificationNone Assigned11/13/2018Coverage Terminated
General PermitSara III CoverageMSR11008310/25/1995Coverage Terminated

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Disclaimer: The information found in enSearch Online is for informational purposes only. While the Department makes reasonable efforts to maintain the data accurately and in a timely manner, enSearch Online is not a legal substitute for the official administrative files of the Department and will from time to time contain information that is not as complete as the information contained in the full administrative file of the agency. Additionally, typographical errors may occur in the transcription of written or typed information into the enSearch Online database; therefore, care should be taken to confirm the information in the database with information in the agency's administrative files. If any conflict exists between information contained in the enSearch Online database and the official administrative files of the Department, the official administrative files of the Department should be considered the official record. Nor is the posting of information on enSearch Online intended to replace the traditional methods of publishing public notice of certain documents as required by State and Federal statutes and/or regulations. EnSearch Online is intended to enhance the public's access to basic agency information. If you wish to review the official public records of the Department, you should contact the Public Records Officer of the Department at : Public Records Officer, Mississippi Department of Environmental Quality, PO Box 2261, Jackson, MS 39225-2261, Phone Number (601) 961-5611 or (601) 961-5171, Fax Number (601) 354-6356.