37 Miss. Code R. § 1-7501-17001-200
All highway roadside parks, rest areas, weigh stations, or welcome centers with wastewater treatment facilities shall hold a valid permit issued by the Mississippi Department of Environmental Quality, hereinafter the "DEQ", in accordance with guidelines set forth by the Federal Environmental Protection Agency. The Roadway Design Division is responsible for obtaining the initial permit(s) for the construction or reconstruction of a wastewater treatment facility. The Maintenance Division is responsible for permit renewals for all wastewater treatment facilities. All permit renewals must be kept on file in the Maintenance Division with copies made available to the District Wastewater Treatment Operators. No treated or untreated wastewater shall be discharged into any public stream, named or unnamed, without a valid permit. The wastewater treatment plants shall be operated at all times in strict accordance with permit requirements.
37 Miss. Code. R. § 1-7501-17001-200