PERMIT RATIONALE FOR REISSUANCE
Isle of Capri Casinos LLC
Coahoma County
Lula,, Mississippi
Water NPDES No. MS0049522
October 2025

I.	CLASSIFICATION – NPDES Commercial

II.	DESCRIPTION OF WASTEWATER – Domestic

III.	DESCRIPTION OF WASTEWATER TREATMENT – Domestic wastewater is collected and treated via a fixed film treatment plant prior to discharge from Outfall 001. Outfall 002 discharges wastewater from an aeration treatment plant. Only one discharge to surface waters was mistakenly described instead of two  within the application with no increase in treated effluent flow proposed. 

IV.	RECEIVING WATERS – Discharges into the Mississippi River. The receiving waters are located in the Coastal Streams drainage basin and are classified as Fish and Wildlife. At the point of discharge, the receiving stream does not appear on the current State of Mississippi 303(d) List of Impaired Waterbodies. The discharge does appear on a completed Total Maximum Daily Load (TMDL) for Fecal Coliform in the Back Bay of Biloxi and Biloxi Bay (January 2002). The facility utilizes chlorine disinfection, which complies with the conditions of the TMDL.

V.	APPLICABLE GUIDELINES – 11 Mississippi Admin Code pt. 6, Commercial Facility Guidelines (Technology), State of Mississippi Water Quality Criteria (MSWQS), TMDL

VI.	SUMMARY OF DISCHARGE LIMITATIONS – 

Outfalls 001 and Outfall 002 

Parameter		Value				Basis
Flow			0.03 MGD		Design
BOD			30 mg/l 			Technology
TSS 			90 mg/l 			Technology
E. coli			126 Col./100mL 	MSWQS
pH			6.0 to 9.0 S.U.	MSWQS
Chlorine		0.1 to 1.0 mg/l	Technology

VII.	CHANGES FROM PREVIOUS PERMIT – 

There were no changes from last reissuance.