PERMIT RATIONALE FOR REISSUANCE
Mooreville Treatment System LLC
Lee County
Mooreville,, Mississippi
Water NPDES No. MS0022624
October 2025

I.	CLASSIFICATION – Commercial NPDES Permit

II.	DESCRIPTION OF WASTEWATER – Domestic Wastewater 

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

IV.	RECEIVING WATERS – Boguefala Creek. The receiving stream is located within the Tombigbee River and is classified as Fish and Wildlife.  At the point of discharge the receiving stream appears on the most recent State of Mississippi 303(d) list of evaluated or impaired waterbodies as a biological impairment. The impairment is near Mooreville from headwaters to confluence with Greenwood Creek. The discharge is not listed on any completed TMDL. Only one discharge to surface waters is described within the application with no increase in treated effluent flow proposed. 

V.	APPLICABLE GUIDELINES – 11 Mississippi Administration Code Pt. 6, Commercial (Domestic) Guidelines

VI.	SUMMARY OF LIMITATIONS –
	Parameter				Value				Basis
	Flow					0.0224 MGD			Design
	BOD5 					30 mg/l (Yearly Avg.)		Domestic Guidelines
	TSS					90 mg/l (Yearly Avg.)		Technology
	pH					6.0 – 9.0 SU			MSWQS
	E Coli					126 Col./100 ml		MSWQS
	Chlorine, Total Residual		0.1 – 1.0 mg/l 			Domestic Guidelines