PERMIT RATIONALE FOR REISSUANCE
GPS Land Company LLC,  Mobile Home Park
Rankin County
Florence, Mississippi
Water NPDES No. MS0043621
March 2024

I.	CLASSIFICATION – NPDES Commercial

II.	DESCRIPTION OF WASTEWATER – Domestic

III.	DESCRIPTION OF WASTEWATER TREATMENT – Domestic wastewater is collected and treated via a conventional 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 Stream thence into Sanders Creek thence into Steen Creek. The receiving waters are located in the Pearl River 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 Pearl River (December 2011). 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)

VI.	SUMMARY OF DISCHARGE LIMITATIONS – 

Parameter		Value				Basis
Flow			0.02 MGD			Design
BOD			30 mg/l 				Technology
TSS 			90 mg/l 				Technology
E. coli			126 Col./100mL 	Previous Permit
pH			6.0 to 9.0 S.U.	Previous Permit
Chlorine		0.1 to 1.0 mg/l	Previous Permit

VII.	CHANGES FROM PREVIOUS PERMIT – 

No Change from last reissuance