PERMIT RATIONALE FOR REISSUANCE
Hermitage RV Park LLC, Hermitage RV Park
Claiborne County
Port Gibson, Mississippi
Water NPDES No. MS0029432
January 6, 2026

I.	CLASSIFICATION – Commercial NPDES 

II.	DESCRIPTION OF WASTEWATER – Domestic Wastewater

III.	DESCRIPTION OF WASTEWATER TREATMENT – Domestic wastewater is collected and treated biologically by means of an aerated lagoon followed by disinfection.  No increase in treated effluent flow is proposed within the application. 

IV.	RECEIVING WATERS – Unnamed tributary of Bayou Pierre. The receiving waters are located within the Southern Independent Streams Basin and are classified as Fish and Wildlife.  At the point of discharge the receiving stream does not appear on the most recent State of Mississippi 303(d) list of evaluated or impaired waterbodies. The stream is listed on a completed Pathogen TMDL which the facility complies with via disinfection. Only one discharge to surface waters is described within the application with no increase in flow proposed.  The existing discharge should not further impair water quality.

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

VI.	CHANGES FROM PREVIOUS PERMIT- None

VII.	SUMMARY OF LIMITATIONS –

	Parameter				Value				Basis	
	Flow					0.0075 MGD			Design
	BOD5					30 mg/l (Yearly Avg.)		Technology
	TSS					60 mg/l (Yearly Avg.)		Technology
	E. Coli					126 #col/100ml		11 Miss Admin
	Chlorine, Total Residual		0.1 – 1.0 mg/l			11 Miss Admin
	pH					6.0 – 9.0 SU			11 Miss Admin