PERMIT RATIONALE FOR REISSUANCE
Forest Ridge Utility Company, Forest Ridge Estates
Lafayette County
Oxford, Mississippi
Water NPDES No. MS0051837
May 16, 2013

I.	CLASSIFICATION – Commercial NPDES Minor

II.	DESCRIPTION OF WASTEWATER – Domestic Wastewater 

III.	DESCRIPTION OF WASTEWATER TREATMENT – Domestic wastewater collected and treated biologically by means of an aerated lagoon followed by disinfection by chlorination.  No increase in effluent flow is proposed within the application.  

IV.	RECEIVING WATERS – An unnamed creek, thence into Yellow Creek.  The receiving stream is located within the Yazoo River Basin is classified as Fish and Wildlife.  At the point of discharge the receiving stream does not appear on the current State of Mississippi 303(d) list of evaluated or impaired waterbodies.  Only one discharge to surface waters is described within the application with no increase in flow proposed.  

V.	APPLICABLE GUIDELINES – State of Mississippi Wastewater Regulations, WPC – 1 

VI.	SUMMARY OF LIMITATIONS –
	Parameter						Value			Basis
	Flow							0.0152 MGD			Design
	BOD5							30 mg/l (Monthly Avg.)		Domestic Guidelines
	TSS							60 mg/l (Monthly Avg.)		Technology 
	Fecal Coliform					200 Col./100 ml			MSWQS
	Chlorine, Total Residual			0.1 – 1.0 mg/l 			Domestic Guidelines
	pH							6.0 -  9.0 SU			MSWQS