PERMIT RATIONALE FOR REISSUANCE
Attala County Schools, 
Long Creek Elementary School
Attala County
Sallis, Mississippi
Water NPDES No. MS0022918
September 26, 2023

I.	CLASSIFICATION – Domestic NPDES

II.	DESCRIPTION OF WASTEWATER – Minor Domestic

III.	DESCRIPTION OF WASTEWATER TREATMENT – Domestic wastewater is collected and treated via a conventional lagoon.  

IV.	RECEIVING WATERS – Unnamed Creek thence into Long Creek. Neither the Unnamed Creek nor Long Creek appears on The current State of Mississippi current List of Impaired Waterbodies.  The discharge is included on the TMDL for pathogens but it does not impact any parameters of this permit. This facility utilizes disinfection therefore this discharge, as permitted, complies with the conditions of the TMDL.  These waterbodies are in the Big Black River drainage basin, and are classified as Fish and Wildlife.

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			0.03 MGD				Design
BOD			30 mg/l (Yearly Average)		Domestic Guidelines
TSS			90 mg/l (Yearly Average)		Domestic Guidelines
E. Coli			126 Col./100mL (Yearly Average)	Domestic Guidelines
pH			6.0 to 9.0 S.U.				MS WQS
Chlorine		0.1 to 1.0 mg/l				MS WQS