PERMIT RATIONALE FOR REISSUANCE
University Of Mississippi, University of Mississippi Field Station
Lafayette County
Abbeville, Mississippi
Water NPDES No. MS0052205
4/25/23

I.	CLASSIFICATION – NPDES Commercial

II.	DESCRIPTION OF WASTEWATER – Domestic

III.	DESCRIPTION OF WASTEWATER TREATMENT – Domestic wastewater is collected and treated via a rock/reed system followed by chlorine disinfection prior to discharge.  One discharge to surface waters is described in the application with no increase in treated effluent flow proposed.

IV.	RECEIVING WATERS – Bay Springs Branch thence into Puskus Creek. The receiving waters are located within the Yazoo River Basin and are 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 Impaired Waterbodies, and the discharge does not appear on a completed Total Maximum Daily Load (TMDL). 

V.	APPLICABLE GUIDELINES – 11 Mississippi Admin Code pt. 6, Commercial Facility Guidelines (Technology) 

VI.	SUMMARY OF LIMITATIONS – 

Parameter				Value		Basis
Flow					0.02 MGD		Design
BOD5					30 mg/l 		Technology
TSS					30 mg/l		Technology
E. coli					126 Col./100ml		Admin Code
Chlorine				0.1 – 1.0 mg/l		Technology
 pH					6.0 – 9.0 SU		Admin Code

VII.	CHANGES FROM PREVIOUS PERMIT – 

No changes from the last permit.