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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.

Discovery Energy LLC, Engine Plant Number 1

General Information

AI IDBranchSICCountyBasinStartEnd
1078Air 2
Haz Waste
Stormwater 401
Water 2		3519ForrestPascagoula River07/02/1997 


Physical and Mailing Address

Physical Address (Primary)Mailing Address
182 John Merl Tatum Industrial Drive
Hattiesburg, MS 39401 		200 Twin Oaks Drive
Kohler, WI 53044


Permits and Alternate/Historic AI Identifiers

Alt IDAlt NameAlt TypeStart DateEnd Date
080000092Kohler Company, Hattiesburg Engine PlantAir-Construction07/02/1997 
080000092Kohler Company, Hattiesburg Engine PlantAir-Construction01/06/1999 
080000092Kohler Company, Hattiesburg Engine PlantAir-State Operating07/02/199711/01/2002
080000092Kohler Company, Hattiesburg Engine PlantAir-State Operating11/23/199911/23/1999
080000092Kohler Company, Hattiesburg Engine PlantAir-Synthetic Minor Operating 08/03/202006/18/2024
080000092Discovery Energy LLC, Engine Plant Number 1Air-Synthetic Minor Operating 06/18/202407/31/2025
080000092Kohler Company, Hattiesburg Engine PlantAir-Title V Operating06/20/200005/10/2005
080000092Kohler Company, Hattiesburg Engine PlantAir-Title V Operating05/12/200504/30/2010
080000092Kohler Company, Hattiesburg Engine PlantAir-Title V Operating04/09/201002/02/2015
080000092Kohler Company, Hattiesburg Engine PlantAir-Title V Operating02/02/201501/31/2020
MSR110154Kohler Company, Hattiesburg Engine PlantGP-Baseline11/27/200002/10/2006
MSR110154Kohler Company, Hattiesburg Engine PlantGP-Baseline02/10/200612/09/2010
MSR110154Kohler Company, Hattiesburg Engine PlantGP-Baseline12/09/201001/11/2016
MSR110154Kohler Company, Hattiesburg Engine PlantGP-Baseline01/11/201610/31/2020
MSR110154Kohler Company, Hattiesburg Engine PlantGP-Baseline05/24/202105/08/2024
MSR110154Discovery Energy LLC, Engine Plant Number 1GP-Baseline05/08/202411/30/2025
MSR103708Kohler Company, Hattiesburg Engine PlantGP-Construction07/11/200505/31/2010
MSR110154Kohler Company, Hattiesburg Engine PlantGP-Sara Title III12/09/199711/27/2000
MSR000003830Kohler Company, Hattiesburg Engine PlantHazardous Waste-EPA ID03/09/1998 
MSP091358Kohler Company, Hattiesburg Engine PlantWater-Pretreatment07/03/199707/01/2002
MSP091358Kohler Company, Hattiesburg Engine PlantWater-Pretreatment03/31/200402/28/2009
MSP091358Kohler Company, Hattiesburg Engine PlantWater-Pretreatment05/12/200902/28/2014
MSU213014Kohler Company, Hattiesburg Engine PlantWater-SOP02/28/201401/31/2019
MSU213014Kohler Company, Hattiesburg Engine PlantWater-SOP09/10/201808/31/2023
MSU213014Kohler Company, Hattiesburg Engine PlantWater-SOP09/01/202305/08/2024
MSU213014Discovery Energy LLC, Engine Plant Number 1Water-SOP05/08/202408/31/2028


Office of Pollution Control Contacts

NameAssignmentPhone Number
Pilgrim, KennethOffice of Pollution Control Air Compliance Manager(601) 961-5368
Johnson, BrandonOffice of Pollution Control Air Compliance Staff(601) 961-5075
Valchanova, IvelinaOffice of Pollution Control Air Permit Manager(601) 961-5333
Valchanova, IvelinaOffice of Pollution Control Air Permit Staff(601) 961-5333
Caron, KristaOffice of Pollution Control Hazardous Waste Manager(601) 961-5719
Beasley, SaraOffice of Pollution Control Stormwater Compliance Manager(601) 961-5283
Robinson, EwanOffice of Pollution Control Stormwater Compliance Staff601-961-5056
Griffith, MichaelOffice of Pollution Control Water Compliance Manager(601) 961-5559
Griffith, MichaelOffice of Pollution Control Water Compliance Staff(601) 961-5559
Simonson, BeckyOffice of Pollution Control Water Permit Manager(601) 961-5580
Cress, CarterOffice of Pollution Control Water Permit Staff(601) 961-5713


Active Permits Available Online

Permit TypePermit NumberIssue DatePermit Document
Air - SMOP Admin Mod0800-0009206/18/2024 click for document
Water - State Operating Permit Admin ModMSU21301405/08/2024 click for document


Active Coverages Available Online

Permit TypePermit NumberIssue DatePermit Document
General Permit - Baseline Administrative ModificationMSR11015405/08/2024 click for document


Current Status of Individual Permit Applications

ProgramPermit TypePermit NumberStatus DateStatus Desc.
AirConstruction Permit0800-0009212/17/2018Application Withdrawn
AirSMOP Admin Mod0800-0009206/24/2024Send Name Change / Transfer Approval Letter
AirTitle V Renewal0800-0009208/03/2020Application Withdrawn
WaterPretreatment ADMINMSP09135802/28/2014Revoke Permit
WaterState Operating Permit Admin ModMSU21301405/09/2024Send Name Change / Transfer Approval Letter


Current Status of General Permit Applications

ProgramPermit TypePermit NumberStatus DateStatus Desc.PDF
General PermitBaseline Administrative ModificationMSR11015405/09/2024Send Name Change / Transfer Approval Letter
General PermitConstruction CoverageMSR10370801/27/2009Coverage Terminated click for document
General PermitSara III CoverageMSR11015411/27/2000Coverage 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.