PERMIT RATIONALE FOR REISSUANCE
NTS Utility Association Inc, Tanglewood Subdivision
Lauderdale County
Meridian, Mississippi
Water NPDES No. MS0035190
September 13, 2023

I.	CLASSIFICATION – Domestic NPDES

II.	DESCRIPTION OF WASTEWATER – Minor Domestic

III.	DESCRIPTION OF WASTEWATER TREATMENT – Domestic wastewater is collected and treated via an aerated lagoon. 

IV.	RECEIVING WATERS – Tributary of Okatibbee Creek.  Okatibbee Creek does appear on the updated 303(d) List of Impaired Waterbodies with Monitoring Data for Aquatic Life Support due to Biological Impariment. However a TMDL has not been completed for Okatibbee Creek.  This waterbody is in the Pascagoula River drainage basin, and is classified as Fish and Wildlife.  One discharge to surface waters is described within the application with no increase in flow proposed. The discharge from this facility should not further impair water quality.

V.	APPLICABLE GUIDELINES – 11 Mississippi Admin. Code pt. 6 (Admin. Code), Waste Load Allocation (WLA), and Commercial Facility Guidelines

VI.	SUMMARY OF DISCHARGE LIMITATIONS – 
Parameter			Value					Basis
Flow				0.11 MGD				Design
BOD				30 mg/l 				WLA
TSS				60 mg/l 				WLA
E. Coli   			126 Col./100mL 			Admin. Code
Effluent pH			6.0 to 9.0 S.U.				Admin. Code
Chlorine			0.1 to 1.0 mg/l				Admin. Code