PERMIT RATIONALE FOR REISSUANCE
Great River Utility Operating Company LLC, Hughes Estates Subdivision
Lowndes County
Columbus,, Mississippi
Water NPDES No. MS0043877
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 Green's Creek. Green's Creek does not appear on the current State of Mississippi current 303(d) List of Waterbodies and also a TMDL has not been conducted for this receiving stream.  This waterbody is in the Tombigbee River drainage basin. Green's 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			0.02 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.				MS WQS
Chlorine		0.1 to 1.0 mg/l				MS WQS