PERMIT RATIONALE FOR REISSUANCE

Byram, City of, City of Byram Sewer Treatment Facility
Hinds County
Byram, Mississippi
Water NPDES No. MS0043541
April 22, 2013

I.	CLASSIFICATION – Municipal NPDES Minor

II.	DESCRIPTION OF WASTEWATER – Domestic / Municipal Wastewater

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

IV.	RECEIVING WATERS – A tributary of Big Creek. It does appear on the current State of Mississippi List of Waterbodies to be listed for aquatic life support due to biological impairment.  A TMDL Nutrients and Organic Enrichment / Low Dissolved Oxygen  for this receiving stream. This waterbody is in the Pearl River drainage basin. Big Creek is classified as Fish and Wildlife.

V.	APPLICABLE GUIDELINES – State of Mississippi Wastewater Regulations (WPC-1),  State of Mississippi Water Quality Criteria, Commercial Facility Guidelines

VI.	SUMMARY OF DISCHARGE LIMITATIONS – 

Parameter		Value					Basis
Flow			0.525 MGD				Design
BOD			10 mg/l (Yearly Average)		WLA
TSS			30 mg/l (Yearly Average)		Domestic Guidelines
Fecal Coliform	200 Col./100mL (Yearly Average)	WLA
Ammonia Nitrogen	2 mg/l (Yearly Average)		WLA
pH			6.0 to 9.0 S.U.				MS WQS
Chlorine		0.011 mg/l				WLA

Note: This facility must be connected to the regional system in compliance with the schedule of the administrative Agreed Order No. 6230 13. Upon connection to the regional system, this permit will be terminated.