PERMIT RATIONALE FOR REISSUANCE
Vicksburg Warren School District, Redwood Elementary
Warren County
Redwood, Mississippi
Water NPDES No. MS0030431
August 26, 2020

I.	CLASSIFICATION – Commercial

II.	DESCRIPTION OF WASTEWATER - Domestic

III.	DESCRIPTION OF WASTEWATER TREATMENT – Domestic wastewater from Redwood Elementary School is collected and treated by means of an activated sludge plant followed by chlorination prior to discharge.

IV.	RECEIVING WATERS – An Unnamed Creek thence into Skillikalia Bayou thence into the Yazoo River.  The receiving stream at the point of discharge does not appear on the current State of Mississippi 303(d) List of Impaired Waterbodies.  The waterbody is in the Yazoo River drainage basin.  The unnamed creek is classified as Fish and Wildlife.

V.	APPLICABLE Guidelines – 11 Mississippi Administration Code Part 6

VI.	SUMMARY OF DISCHARGE LIMITATIONS – 

Parameter			Value			Basis
Flow				0.010 MGD			Design
BOD5				30 mg/l 			Commercial Design
TSS				30 mg/l			Commercial Design
E. Coli				126 Col./100ml			Commercial Design
pH	6.0 TO 9.0 S.U.			11MACP6
Chlorine	0.1 to 1.0 mg/l				Commercial Design

E. Coli will now be the bacterial indicator used for all freshwaters in MS designated as Recreation, Fish and Wildlife Support, and /or Public Water supply (replacing the use of fecal coliform).