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

PERMIT RATIONALE FOR REISSUANCE
MDOT, Interstate 55 North, Rest Area, Panola
Panola County
Batesville, Mississippi
Water NPDES No. MS0028886
April 8, 2024

I.	CLASSIFICATION – Domestic NPDES

II.	DESCRIPTION OF WASTEWATER – Minor Domestic

III.	DESCRIPTION OF WASTEWATER TREATMENT – Domestic wastewater is collected and treated via an activated sludge system.  

IV.	RECEIVING WATERS –  Unnamed Creek thence to Johnson’s Creek.  Neither the Unnamed Creek nor Johnson’s Creek appears on the current 303(d) List of Impaired Waterbodies. A TMDL has been conducted for this receiving stream for Total Nitrogen, Total Phosphorus, and Organic Enrichment/Low DO in Yazoo River Basin. These waterbodies are in the Yazoo River drainage basin, and are classified as Fish and Wildlife.  One discharge to surface waters is described within the application with no increase in flow proposed. The discharge from this facility should not further impair water quality.

V.	APPLICABLE GUIDELINES – State of Mississippi Wastewater Regulations (11 MS admin code part 6),  State of Mississippi Water Quality Criteria, Commercial Facility Guidelines

VI.	SUMMARY OF DISCHARGE LIMITATIONS – 

Parameter			Value					Basis
Flow				0.01 MGD				Design
BOD				30 mg/l				Domestic Guidelines
TSS				30 mg/l				Domestic Guidelines
E. Coli				126 Col./100mL			Domestic Guidelines
Effluent pH			6.0 to 9.0 S.U.				MS WQS
Chlorine			0.1 to 1.0 mg/l				MS WQS
Total Nitrogen			    1.14 lbs/day				TMDL
Total Phosphorus		    0.49 lbs/day				TMDL

The minimum and maximum values for Influent ph, Dissolved Oxygen in aeration unit, and 30-Minute Sludge Settleability in aeration unit must be reported.

13678 PER20240001