PERMIT RATIONALE FOR REISSUANCE
Madison County School District - North Madison Middle School
Madison County
Canton, Mississippi
Water - NPDES No. MS0057193
October 2025

I.	CLASSIFICATION – Commercial NDPES
II.	DESCRIPTION OF WASTEWATER – Domestic Wastewater
III.	DESCRIPTION OF WASTEWATER TREATMENT – Domestic wastewater generated by the school is collected and treated by an aerated lagoon followed by disinfection by chlorination prior to discharge.    
IV.	RECEIVING WATERS – an unnamed creek thence into Doaks Creek. The receiving stream is not denoted on the current State of Mississippi Section 303(d) List of Waterbodies as being impaired.  This waterbody is in the Big Black River basin.  The receiving stream is classified as Fish and Wildlife.  
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			0.0175 MGD				Design
BOD			30 mg/l 				Previous Permit
TSS			60 mg/l 				Previous Permit
E. Coli			126 Col./100mL 			Previous Permit
pH			6.0 to 9.0 S.U.				Previous Permit
Chlorine		0.1 to 1.0 mg/l				Previous Permit