PERMIT RATIONALE FOR REISSUANCE
Flora POTW
Madison County
Flora, Mississippi
Water NPDES No. MS0055719
May 2023

I.	CLASSIFICATION – Municipal NPDES

II.	DESCRIPTION OF WASTEWATER – Minor Municipal

III.	DESCRIPTION OF WASTEWATER TREATMENT – Domestic wastewater is collected and treated via an aerated lagoon followed by a sand filter.  

IV.	RECEIVING WATERS –Big Black River. The Current State of Mississippi 303d  List of Impaired Waterbodies does not list the Big Black River. The facility’s discharge is denoted in a pH TMDL for the Big Black, which the facility complies with via limitations.  This waterbody is in the Big Black River drainage basin.  The Big Black River is classified as Fish and Wildlife.

V.	APPLICABLE GUIDELINES – 11 MS Admin Code pt. 6,  Municipal Guidelines, 2023 Wasteload Allocation (WLA)

XI.	PROPOSED FINAL LIMITATIONS 

Parameter			Value					Basis
Flow				0.3 MGD				Design
BOD				30 mg/l 				WLA
Ammonia Nitrogen		Report					WLA
TSS				30 mg/l 				Municipal Guidelines
E. Coli				126/410 Col./100mL 			WLA
pH				6.0 to 9.0 S.U.				Municipal Guidelines
Chlorine			< 1.0 mg/l 				WLA
BOD % Removal		85% min				Technology
	TSS % Removal		85% min				Technology
	Total Nitrogen			Report					WLA
	Total Phosphorus		Report					WLA