PERMIT RATIONALE FOR REISSUANCE
Madison County School District - North Madison Middle School
Madison County
Canton, Mississippi
Water - NPDES No. MS0057193
June 2020

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 – State of Mississippi Wastewater Regulations (11 Miss. Admin. Code Pt. 6, Ch. 1.), Commercial Facility Guidelines
VI.	SUMMARY OF DISCHARGE LIMITATIONS – 
Parameter		Value					Basis
Flow			0.0175 MGD				Design
BOD			30 mg/l 				Commercial Guidelines
TSS			60 mg/l 				Commercial Guidelines
E. Coli			126 Col./100mL 			Admin Code
pH			6.0 to 9.0 S.U.				Admin Code
Chlorine		0.1 to 1.0 mg/l				Admin Code