PERMIT RATIONALE FOR REISSUANCE
Edgewood Park Inc
Warren County
Vicksburg, Mississippi
Water NPDES No. MS0050369
January 23, 2023

I.	CLASSIFICATION – NPDES Commercial

II.	DESCRIPTION OF WASTEWATER –  Domestic

III.	DESCRIPTION OF WASTEWATER TREATMENT – Domestic wastewater is collected and treated via a conventional lagoon followed by chlorine disinfection prior to discharge. Only one discharge to surface waters is described in the application with no increase in treated effluent flow proposed.

IV.	RECEIVING WATERS – Unnamed tributary of Silver Creek. The receiving waters are located in the Big Black River drainage basin and are classified as fish and wildlife. The Big Black River is listed on the current State of Mississippi 303(d) List of Impaired Waterbodies for biological impairment. A future completed Total Maximum Daily Load (TMDL) may require additional or reduction in limitations based on the impairment.
V.	APPLICABLE GUIDELINES – 11 Mississippi Admin Code pt. 6, Commercial Facility Guidelines (Technology)

VI.	SUMMARY OF DISCHARGE LIMITATIONS – 

Parameter		Value				Basis
Flow			0.008 MGD			Design
BOD			30 mg/l 			Technology
TSS			90 mg/l 			Technology
E. coli			126 Col./100mL		Admin Code
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 - 
none