PERMIT RATIONALE FOR ISSUANCE
Braxton Nanofiltration Plant
Simpson County
Braxton, Mississippi
Water NPDES No. MS0062766
April 2023

I.	CLASSIFICATION – NPDES Industrial

II.	DESCRIPTION OF WASTEWATER – Reject wastewater from nanofiltration plant.

III.	DESCRIPTION OF WASTEWATER TREATMENT – None

IV.	RECEIVING WATERS – Unnamed Tributary of Sanders Creek is 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, and the discharge does not appear on a completed Total Maximum Daily Load (TMDL). An Anti-Degradation Report was completed as part of the application.

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			Report, MGD	Design
TSS 			30 mg/l 			Technology
pH			6.0 to 9.0 S.U.	MSWQS
Iron			1.0 mg/l			MSWQS
	Chlorine		0.011 mg/l		Technology