PERMIT RATIONALE FOR REISSUANCE
Mississippi Department of Wildlife Fisheries and Parks, Tombigbee State Park
Lee County
Tupelo, Mississippi
Water NPDES No. MS0033464
April, 2017

I.	CLASSIFICATION – Commercial NPDES Minor

II.	DESCRIPTION OF WASTEWATER – Domestic Wastewater

III.	DESCRIPTION OF WASTEWATER TREATMENT – Domestic wastewater is collected and treated by a conventional lagoon.  No increase in flow proposed within the application.

IV.	RECEIVING WATERS – Unnamed creek thence into Garrett Creek thence into Town Creek. At the point of discharge the receiving stream does not appear on the current State of Mississippi 303(d) List of Impaired Waterbodies. The facility appears on a completed TMDL for Nutrients. Limits for Ammonia, Total Nitrogen, and Total Phosphorous were included in the permit to comply with the TMDL. The receiving waters are located within the Tombigbee River Basin and are classified as Fish and Wildlife.  Only one discharge to surface waters is described within the application.

V.	APPLICABLE Guidelines – 11 Mississippi Admin. Code pt. 6 (Admin. Code), Total Maximum Dailey Load (TMDL), and Municipal Facility Guidelines (Technology).

VI.	SUMMARY OF LIMITATIONS – 

Parameter		Value					Basis
Flow			0.0075 MGD		Design
BOD5			30 mg/l					Admin. Code
TSS			90 mg/l 				Technology
E. Coli			126 Col./100 ml		Admin. Code
Chlorine		.1 – 1.0 mg/l 		Admin. Code
	Total Nitrogen		0.72 lbs/day 			TMDL
	Total Phosphorous	0.33 lbs/day 			TMDL
	pH			6.0 – 9.0 S.U.		Admin. Code

VII.	CHANGES FROM PREVIOUS PERMIT – 
	
	Fecal Coliform was replaced by E. Coli limits.