Title: PERMIT RATIONALE
Author: Preferred Customer
Last saved by: Sandeepa Gill
Company: Dell Computer Corporation

PERMIT RATIONALE FOR ISSUANCE
Corinth Gas and Light, Corinth Drinking Treatment Plant
Alcorn County
Corinth, Mississippi
Water NPDES No. MS0060593
March 21, 2024

I.	CLASSIFICATION – Industrial NPDES

II.	DESCRIPTION OF WASTEWATER – Industrial Minor

III.	DESCRIPTION OF WASTEWATER TREATMENT – The wastewater is filter backwash from a filtration system consisting of rapid mixing, flocculation, sedimentation, filtration and disinfection to treat raw surface water.

IV.	RECEIVING WATERS – An unnamed tributary of Coke Creek.  Neither waterbody appear on the current 303(d) List of Impaired Waterbodies. A TMDL has not been conducted for this receiving stream. These waterbodies are located in the North Independent Streams Basin, and are both classified as Fish and Wildlife. 

V.	APPLICABLE GUIDELINES – 11 MS admin code part 6,  State of Mississippi Water Quality Criteria, Industrial Facility Guidelines

VI.	SUMMARY OF DISCHARGE LIMITATIONS – 

Parameter		Average		Maximum		Basis
Flow			Report			Report			Design
TSS			30 mg/l		45 mg/L		Industrial Guidelines
TDS			750 mg/l		1500 mg/l		MS WQS
pH			6.0 S.U.		9.0 S.U.		Industrial Guidelines
Chlorine		0.011 mg/l		0.019 mg/l		WLA
Iron			1.0 mg/L		Report	mg/l		WLA
Aluminum		Report mg/l		0.750 mg/l		WLA

454 PER20230001