PERMIT RATIONALE FOR REISSUANCE
Piney Woods Country Life School
Rankin County
Piney Woods, Mississippi
Water NPDES No. MS0037541
January 2019

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 – Unnamed Creek thence into Sanders Creek. Neither the Unnamed Creek nor Sanders Creek appears on The State of Mississippi 303(d) List of Waterbodies. The discharge does appear on a completed TMDL for Fecal Coliform. The facility disinfects and complies with the TMDL. These waterbodies are in the Pearl River drainage basin, and are classified as Fish and Wildlife.

V.	APPLICABLE GUIDELINES – 11 Mississippi Admin. Code pt. 6 (Admin. Code), Total Maximum Daily Load (TMDL), Domestic and Commercial Guidelines.

VI.	SUMMARY OF DISCHARGE LIMITATIONS – 

Parameter		Value					Basis
Flow			0.08 MGD				Design
BOD			30 mg/l 				Domestic Guidelines
TSS			60 mg/l 				Domestic Guidelines
E. Coli			126 Col./100mL 			TMDL
pH			6.0 to 9.0 S.U.				Admin. Code
Chlorine		0.1 to 1.0 mg/l				Admin. Code

VII.	CHANGES FROM PREVIOUS PERMIT- E. Coli limitations have replaced Fecal Coliform.