PERMIT RATIONALE FOR REISSUANCE
Wash Mobile Home Park
Lincoln County
Bogue Chitto, Mississippi
Water NPDES No. MS0059544
August 2023

I.	CLASSIFICATION – NPDES Commercial

II.	DESCRIPTION OF WASTEWATER – Domestic 

III.	DESCRIPTION OF WASTEWATER TREATMENT – Domestic wastewater is collected and treated by means of a trash tank as pretreatment with secondary treatment of a media filter treatment plant, followed by disinfection. The proposed capacity for the treatment system is 0.005 MGD.

IV.	RECEIVING WATERS – Unnamed Tributary thence into the Bogue Chitto River. The Bogue Chitto River does appear on the State of Mississippi 303(d) List of Impaired Waterbodies for biological impairment. However, the discharge does not appear on a completed TMDL. The receiving streams are located within the Pearl River drainage basin, and are classified as recreational. Only one discharge to surface waters is described within the application. 

V.	APPLICABLE GUIDELINES – 11 Mississippi Administration Code pt. 6 (Admin. Code) and Domestic Facility Guidelines 

VI.	SUMMARY OF DISCHARGE LIMITATIONS – 
Parameter		Value					Basis
Flow			0.005 MGD			Design
BOD5			30 mg/l (Monthly Average)		Domestic Guidelines
TSS			30 mg/l (Monthly Average)		Domestic Guidelines
E. Coli			126 Col./100ml		Admin. Code
Chlorine		0.1 – 1.0 mg/l		Admin. Code
pH			6.0 – 9.0 S.U.		Admin. Code

VII.	CHANGES FROM PREVIOUS PERMIT- 	

No Change