PERMIT RATIONALE FOR REISSUANCE
Humphreys Academy Foundation, Humphreys Academy
Humphreys County
Belzoni, Mississippi
Water NPDES No. MS0048003
July 2018

I.	CLASSIFICATION – Domestic NPDES

II.	DESCRIPTION OF WASTEWATER – Minor Domestic

III.	DESCRIPTION OF WASTEWATER TREATMENT – Domestic wastewater is treated via septic tanks followed by a sand filter.

IV.	RECEIVING WATERS – Drainage Ditch No. 26 thence into the Yazoo River. The receiving stream does not appear on the current State of Mississippi List of Impaired Waterbodies. However, the Yazoo River has TMDL’s for nutrients, organic enrichment/low D.O., pathogens, and pesticides. This discharge is not expected to contribute to pesticide issues; also the TMDL from pesticides does not propose limitations on this discharge. These waterbodies are in the Yazoo River drainage basin. The receiving stream and the Yazoo River are both classified as Fish and Wildlife. 

V.	APPLICABLE GUIDELINES – 11 MS Admin Code pt. 6, State of Mississippi Water Quality Criteria, Commercial Facility Guidelines

VI.	SUMMARY OF DISCHARGE LIMITATIONS – 

Parameter			Value					Basis
Flow				0.008 MGD			Design
BOD				30 mg/l (Monthly Average)		Commercial Guidelines
TSS				30 mg/l (Monthly Average)		Commercial Guidelines
e. Coli				126 Col./100mL (Monthly Average)	Commercial Guidelines
pH				6.0 to 9.0 S.U.		MS WQS
Chlorine			0.1 to 1.0 mg/l		Commercial Guidelines