PERMIT RATIONALE FOR REISSUANCE
Great River Utility Operating Company, LLC, Blakely Sewage District Subdivision
Warren County
Vicksburg, Mississippi
Water NPDES No. MS0038512
October 2025

I.	CLASSIFICATION – Commercial NPDES

II.	DESCRIPTION OF WASTEWATER – Domestic Wastewater

III.	DESCRIPTION OF WASTEWATER TREATMENT – Domestic wastewater is collected and treated by a conventional lagoon followed by disinfection by chlorination prior to discharge.

IV.	RECEIVING WATERS – Unnamed Tributary of Bliss Creek thence into the Yazoo River. The receiving stream, Bliss Creek, is listed on the current State of Mississippi 303(d) List of Impaired Waterbodies for biological impairment. The facility is not mentioned in a completed TMDL. This waterbody is located in the Yazoo River drainage basin and is classified as Fish & Wildlife. 

V.	APPLICABLE GUIDELINES – 11 Mississippi Admin Code Pt. 6 Ch. 1, Commercial Facility Guidelines, State of Mississippi Water Quality Standards

VI.	SUMMARY OF DISCHARGE LIMITATIONS – 
Parameter		Value					Basis
Flow			0.02 MGD			Design
BOD5			30 mg/l (Monthly Average)		Commercial Guidelines
TSS			90 mg/l (Monthly Average)		Commercial Guidelines
E. Coli			126 Col./100ml (Monthly Average)	MSWQS
pH			6.0 – 9.0 S.U.		MSWQS
Chlorine, T.R.		0.1 – 1.0 mg/l		MSWQS