PERMIT RATIONALE FOR REISSUANCE
Yazoo County School District, Bentonia Gibbs School
Yazoo County
Bentonia, Mississippi
Water NPDES No. MS0030406
November 29, 2022

I.	CLASSIFICATION – NPDES Commercial

II.	DESCRIPTION OF WASTEWATER – Domestic

III.	DESCRIPTION OF WASTEWATER TREATMENT – Domestic wastewater is collected and treated through a conventional lagoon followed by chlorine disinfection prior to discharge Only one discharge to surface waters is described in the application with no increase in treated effluent flow proposed.  

IV.	RECEIVING WATERS – Kirk Creek thence into the Big Black River.  The receiving waters are located in the Big Black River drainage basin and are classified as Fish and Wildlife.  At the point of discharge, Kirk Creek does not appear on the current 303(d) List of Impaired Waterbodies, nor does the discharge appear on any completed Total Maximum Daily Loads (TMDLs).

V.	APPLICABLE GUIDELINES – 11 Mississippi Admin Code pt. 6, Commercial Facility Guidelines (Technology)

VI.	SUMMARY OF DISCHARGE LIMITATIONS – 

Parameter		Value				Basis
Flow			0.01 MGD			Design
BOD			30 mg/l 			Technology
TSS			90 mg/l 			Technology 
E. coli			126 Col./100mL		Technology 
pH			6.0 to 9.0 S.U.			Admin Code
Chlorine		0.1 to 1.0 mg/l			Admin Code

VII.	CHANGES FROM PREVIOUS PERMIT – 

None