PERMIT RATIONALE FOR REISSUANCE
Phenom Investments, LLC, Pinocchios Plaza
Harrison County
Saucier, Mississippi
Water NPDES No. MS0050431
May 2025

I.	CLASSIFICATION – NPDES Commercial

II.	DESCRIPTION OF WASTEWATER – Domestic

III.	DESCRIPTION OF WASTEWATER TREATMENT – Domestic wastewater is collected and treated via an aerated lagoon followed by chlorine disinfection prior to discharge. Only one discharge to surface waters is described within the application with no increase in treated effluent flow proposed. 

IV.	RECEIVING WATERS – Unnamed tributary of the Little Biloxi 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 Pathogens in the Biloxi River, Little Biloxi River, and Saucier Creek (December 1999). 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)

VI.	SUMMARY OF DISCHARGE LIMITATIONS – 

Parameter		Value				Basis
Flow			0.006 MGD		Design
BOD			30 mg/l 				Technology
NH3-N			2.48 mg/l			MSWQS
TSS 			60 mg/l 				Technology
E. coli			126 Col./100mL 	MSWQS
pH			6.0 to 9.0 S.U.	MSWQS
Chlorine		0.011 mg/l			MSWQS
Dissolved Oxygen	6.0 mg/l minimum	MSWQS