PERMIT RATIONALE FOR REISSUANCE
Great River Utility Operating Company LLC, Hillcrest Subdivision
Lowndes County
Columbus, Mississippi
Water NPDES No. MS0054291
November 14, 2023

I.	CLASSIFICATION – Domestic NPDES

II.	DESCRIPTION OF WASTEWATER – Minor Domestic

III.	DESCRIPTION OF WASTEWATER TREATMENT – Domestic wastewater is collected and treated via an aerated lagoon.  

IV.	RECEIVING WATERS – A tributary of Luxapilala Creek. Luxapilala Creek does appear on the current State of Mississippi current List of Impaired Waterbodies. A TMDL has not been conducted for this receiving stream. This waterbody is in the Tombigbee River drainage basin. Luxapilala Creek is classified as Fish and Wildlife.

V.	APPLICABLE GUIDELINES – State of Mississippi Wastewater Regulations (11 MS admin code part 6),  State of Mississippi Water Quality Criteria, Commercial Facility Guidelines

VI.	SUMMARY OF DISCHARGE LIMITATIONS – 

Parameter		Value					Basis
Flow			0.048 MGD				Design
BOD			30 mg/l (Yearly Average)		Domestic Guidelines
TSS			60 mg/l (Yearly Average)		Domestic Guidelines
E. Coli			126 Col./100mL (Yearly Average)	Domestic Guidelines
pH			6.0 to 9.0 S.U.				Admin code
Chlorine		0.1 to 1.0 mg/l				Admin code
Dissolved Oxygen	6.0 mg/L (Minimum)			Admin code